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Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required. 16 . .. . .. ... lunch time when we get to York, so let's have lunch there.~No, ... ... not be time for lunch because our train to Edinburgh leaves York at 13.15.17 ... ...a funny smell here. ... ... turpentine?18 ... ...all sorts of stories about Robin Hood, but ... ... not known exactly who he was or what he did.19 ... ... said that if you...
Đọc tiếp

Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required.

 

16 . .. . .. ... lunch time when we get to York, so let's have lunch there.~No, ... ... not be time for lunch because our train to Edinburgh leaves York at 13.15.

17 ... ...a funny smell here. ... ... turpentine?

18 ... ...all sorts of stories about Robin Hood, but ... ... not known exactly who he was or what he did.

19 ... ... said that if you break a mirror you'll be unlucky for seven years.

20 As he had very bad sight ... ... difficult for him to recognize people.

21 Can I have a Telegraph, please? said the customer. Im afraid ... ... not any left said the newsagent. But . . . . . . a Guardian on the rack beside you. Why not take that? ... ... just as good.;

22 ... ... not necessary to carry your passport everywhere with you but ... ... advisable to carry some document of identity.

23 ... ...a guard outside the door and ... ... bars on the windows. ... ... impossible to escape.

24 ... ...a garage behind the hotel? ~ Yes, but ... ... rather full. I don't think ... ... room for your car.

25 One night . . . . . . a heavy fall of snow which blocked all the roads. Luckily ... ... plenty of food in the house.

26 ... ...a hotel in the village, so we decided to stay there. . . . . . . a charming village and I was very happy there, but my children were bored because ... ... nothing to do in the evenings.

27 ... ... five flats in the building—one on each floor. Mine's on the top floor. . . . . . . no lift but ... ...supposed to be good for the figure to run up and down stairs, . . . . . .?

28 ... ...a pity you haven't  another bedroom. ~ Yes, but ... ... quite a big loft, which I am thinking of turning into a bedroom. . . . . . . a skylight so ... ... not . . . a ventilation problem.

29 ... ...all sorts of legends about these caves. ... ... said that smugglers hid their goods here and that . . .. . . an underground passage leading to the village inn.

30 Tell me something about King Lear. ~ ………... the story of a king who divided his kingdom between his daughters. ... ... foolish to give away your property like that. . . . . . . never certain that your family will behave generously to you in return.

31 Has Tom any more children?~ Yes. . . . . , . a daughter, Ann.~ Oh yes, ... ... Ann who opened the door to us yesterday, . . . . . .?

32 He thought that ... ... better to say nothing about his change of plan.

33 . .. ...a long time before I got an answer. Then one day a letter arrived—well, ... ... not really a letter,... ... only one sentence on the paper.

34 ... ...a pond beside your house? - Yes, . . . . . . ~ How deep . . . . . .?

35 We'e done all we can. ... ... nothing to do now but wait.

36 Just cross out that word and go on.... ... not necessary to begin again. (or... ...no need to begin again.)

1
12 tháng 9 2021

16 . .. . ..It will be ... lunch time when we get to York, so let's have lunch there.~No, ...it will  ... not be time for lunch because our train to Edinburgh leaves York at 13.15.

17 ...There is ...a funny smell here. ... .Is it.. turpentine?

18 ...There are ...all sorts of stories about Robin Hood, but ... It is... not known exactly who he was or what he did.

19 ... .It is.. said that if you break a mirror you'll be unlucky for seven years.

20 As he had very bad sight ... It was... difficult for him to recognize people.

21 Can I have a Telegraph, please? said the customer. Im afraid ... .there is.. not any left said the newsagent. But . . there is. . . . a Guardian on the rack beside you. Why not take that? ...It is ... just as good.;

22 ... It is... not necessary to carry your passport everywhere with you but ... .It is.. advisable to carry some document of identity.

23 ...There is ...a guard outside the door and ...there are ... bars on the windows. ... .it is.. impossible to escape.

24 ... .Is there..a garage behind the hotel? ~ Yes, but ..it is. ... rather full. I don't think ... there is... room for your car.

25 One night . . .there was . . . a heavy fall of snow which blocked all the roads. Luckily ... .there was.. plenty of food in the house.

26 ..There was. ...a hotel in the village, so we decided to stay there. . . . . It is. . a charming village and I was very happy there, but my children were bored because ..there is. ... nothing to do in the evenings.

27 ...There are ... five flats in the building—one on each floor. Mine's on the top floor. There is. . . . . . no lift but ... .It is..supposed to be good for the figure to run up and down stairs, . isn't it. . . . .?

28 ... It is...a pity you haven't  another bedroom. ~ Yes, but ... .it is.. quite a big loft, which I am thinking of turning into a bedroom. . . . there is. . . a skylight so ... it is... not . . . a ventilation problem.

29 ...There are ...all sorts of legends about these caves. ...It is ... said that smugglers hid their goods here and that . . there is.. . . an underground passage leading to the village inn.

30 Tell me something about King Lear. ~ ……It was…... the story of a king who divided his kingdom between his daughters. ...It is ... foolish to give away your property like that. . . It is. . . . never certain that your family will behave generously to you in return.

31 Has Tom any more children?~ Yes. . . it is , . a daughter, Ann.~ Oh yes, ... it is... Ann who opened the door to us yesterday, . . . isn't it. . .?

32 He thought that ...it is ... better to say nothing about his change of plan.

33 . .. It had been...a long time before I got an answer. Then one day a letter arrived—well, ...it was ... not really a letter,... there was... only one sentence on the paper.

34 ... Is there...a pond beside your house? - Yes, . .there is . . . . ~ How deep . is it. . . . .?

35 We'e done all we can. ... there is... nothing to do now but wait.

36 Just cross out that word and go on....it is ... not necessary to begin again. (or...there is ...no need to begin again.)

Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required.1 What's the time? - ... ... 3.30. ~ And what's the date? ~ . . . . . . the 24th.2 How far... ...to York? ~ . . . . . . 50 miles.3 ... ... very stormy last night. ~ Yes, ... ... storms all over the country.4 ... ... freezing very hard. ... ... ...ice on the lake tomorrow.5 As... ... sunny she decided to take the children to the sea.6 Why don't you...
Đọc tiếp

Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required.

1 What's the time? - ... ... 3.30. ~ And what's the date? ~ . . . . . . the 24th.

2 How far... ...to York? ~ . . . . . . 50 miles.

3 ... ... very stormy last night. ~ Yes, ... ... storms all over the country.

4 ... ... freezing very hard. ... ... ...ice on the lake tomorrow.

5 As... ... sunny she decided to take the children to the sea.

6 Why don't you go for a walk? . . . . . . a pity to stay in when . . . . . . so nice outside.

7 ... ... not any shadows because ... ... not any sun.

8 ... ... going to be a bus strike tomorrow. ~ ... ... ...all right if ... ... a fine day; but if ... ... wet ... ... ...long queues on the Underground.

9 ... ... not any glass in the windows; that is why . . . . . . so cold in the room.

10 ... ... very wet yesterday; ... ... impossible to go out.

11 ... ...a lot of rain last week. ... ... floods everywhere.12 ... ...a thick fog last night. ... ... several accidents on the motorway.

13 ... ... foolish to drive fast when ... ... foggy.

14 ... ... difficult to find your way round this town. . . . . . . so many streets all looking exactly alike.

15 Come on, children! ... ... time to get up! ... ... nearly breakfast time.

 

1
12 tháng 9 2021

1 What's the time? - ...It is ... 3.30. ~ And what's the date? ~ . . . it is. . . the 24th.

2 How far... is it...to York? ~ . . . it is. . . 50 miles.

3 ... ..It was. very stormy last night. ~ Yes, ..there were. ... storms all over the country.

4 ...It is ... freezing very hard. ...There will be ...ice on the lake tomorrow.

5 As... .it was.. sunny she decided to take the children to the sea.

6 Why don't you go for a walk? . . . . It is. . a pity to stay in when . .it is . . . . so nice outside.

7 ... There are... not any shadows because ...there is ... not any sun.

8 ...There is ... going to be a bus strike tomorrow. ~ ... ... It will be..all right if ... .it is.. a fine day; but if ... it is... wet ... .There will be.. ...long queues on the Underground.

9 ... There is... not any glass in the windows; that is why . . . .it is . . so cold in the room.

10 ...It was ... very wet yesterday; ... It was... impossible to go out.

11 ...There was ...a lot of rain last week. ...There were ... floods everywhere.

12 ... ..There was .a thick fog last night. ... ..There were. several accidents on the motorway.

13 ... ..It is. foolish to drive fast when ... ..it is. foggy.

14 ... .It is.. difficult to find your way round this town. . . .There are . . . so many streets all looking exactly alike.

15 Come on, children! ...It is ... time to get up! ..It is. ... nearly breakfast time.

Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required.1 What's the time? - ... ... 3.30. ~ And what's the date? ~ . . . . . . the 24th.2 How far... ...to York? ~ . . . . . . 50 miles.3 ... ... very stormy last night. ~ Yes, ... ... storms all over the country.4 ... ... freezing very hard. ... ... ...ice on the lake tomorrow.5 As... ... sunny she decided to take the children to the sea.6 Why don't you...
Đọc tiếp

Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required.

1 What's the time? - ... ... 3.30. ~ And what's the date? ~ . . . . . . the 24th.

2 How far... ...to York? ~ . . . . . . 50 miles.

3 ... ... very stormy last night. ~ Yes, ... ... storms all over the country.

4 ... ... freezing very hard. ... ... ...ice on the lake tomorrow.

5 As... ... sunny she decided to take the children to the sea.

6 Why don't you go for a walk? . . . . . . a pity to stay in when . . . . . . so nice outside.

7 ... ... not any shadows because ... ... not any sun.

8 ... ... going to be a bus strike tomorrow. ~ ... ... ...all right if ... ... a fine day; but if ... ... wet ... ... ...
long queues on the Underground.

9 ... ... not any glass in the windows; that is why . . . . . . so cold in the room.

10 ... ... very wet yesterday; ... ... impossible to go out.

11 ... ...a lot of rain last week. ... ... floods everywhere.
12 ... ...a thick fog last night. ... ... several accidents on the motorway.

13 ... ... foolish to drive fast when ... ... foggy.

14 ... ... difficult to find your way round this town. . . . . . . so many streets all looking exactly alike.

15 Come on, children! ... ... time to get up! ... ... nearly breakfast time.

16 . .. . .. ... lunch time when we get to York, so let's have lunch there.~No, ... ... not be time for lunch because our train to Edinburgh leaves York at 13.15.

17 ... ...a funny smell here. ... ... turpentine?

18 ... ...all sorts of stories about Robin Hood, but ... ... not known exactly who he was or what he did.

19 ... ... said that if you break a mirror you'll be unlucky for seven years.

20 As he had very bad sight ... ... difficult for him to recognize people.

21 Can I have a Telegraph, please? said the customer. Im afraid ... ... not any left said the newsagent. But . . . . . . a Guardian on the rack beside you. Why not take that? ... ... just as good.;

22 ... ... not necessary to carry your passport everywhere with you but ... ... advisable to carry some document of identity.

23 ... ...a guard outside the door and ... ... bars on the windows. ... ... impossible to escape.

24 ... ...a garage behind the hotel? ~ Yes, but ... ... rather full. I don't think ... ... room for your car.

25 One night . . . . . . a heavy fall of snow which blocked all the roads. Luckily ... ... plenty of food in the house.

26 ... ...a hotel in the village, so we decided to stay there. . . . . . . a charming village and I was very happy there, but my children were bored because ... ... nothing to do in the evenings.

27 ... ... five flats in the building—one on each floor. Mine's on the top floor. . . . . . . no lift but ... ...supposed to be good for the figure to run up and down stairs, . . . . . .?

28 ... ...a pity you haven't  another bedroom. ~ Yes, but ... ... quite a big loft, which I am thinking of turning into a bedroom. . . . . . . a skylight so ... ... not . . . a ventilation problem.

29 ... ...all sorts of legends about these caves. ... ... said that smugglers hid their goods here and that . . .. . . an underground passage leading to the village inn.

30 Tell me something about King Lear. ~ ………... the story of a king who divided his kingdom between his daughters. ... ... foolish to give away your property like that. . . . . . . never certain that your family will behave generously to you in return.

31 Has Tom any more children?~ Yes. . . . . , . a daughter, Ann.~ Oh yes, ... ... Ann who opened the door to us yesterday, . . . . . .?

32 He thought that ... ... better to say nothing about his change of plan.

33 . .. ...a long time before I got an answer. Then one day a letter arrived—well, ... ... not really a letter,... ... only one sentence on the paper.

34 ... ...a pond beside your house? - Yes, . . . . . . ~ How deep . . . . . .?

35 We'e done all we can. ... ... nothing to do now but wait.

36 Just cross out that word and go on.... ... not necessary to begin again. (or... ...no need to begin again.)

2
12 tháng 9 2021

*Do bài dài nên tớ tách ra nhé

Insert it is/there is in the spaces. In some sentences, contracted plural, negative and interrogative forms, or the past or future tense are required.

1 What's the time? - ...It is ... 3.30. ~ And what's the date? ~ . . . it is. . . the 24th.

2 How far... is it...to York? ~ . . . it is. . . 50 miles.

3 ... ..It was. very stormy last night. ~ Yes, ..there were. ... storms all over the country.

4 ...It is ... freezing very hard. ...There will be ...ice on the lake tomorrow.

5 As... .it was.. sunny she decided to take the children to the sea.

6 Why don't you go for a walk? . . . . It is. . a pity to stay in when . .it is . . . . so nice outside.

7 ... There are... not any shadows because ...there is ... not any sun.

8 ...There is ... going to be a bus strike tomorrow. ~ ... ... It will be..all right if ... .it is.. a fine day; but if ... it is... wet ... .There will be.. ...long queues on the Underground.

9 ... There is... not any glass in the windows; that is why . . . .it is . . so cold in the room.

10 ...It was ... very wet yesterday; ... It was... impossible to go out.

11 ...There was ...a lot of rain last week. ...There were ... floods everywhere.

12 ... ..There was .a thick fog last night. ... ..There were. several accidents on the motorway.

13 ... ..It is. foolish to drive fast when ... ..it is. foggy.

14 ... .It is.. difficult to find your way round this town. . . .There are . . . so many streets all looking exactly a.

15 Come on, children! ...It is ... time to get up! ..It is. ... nearly breakfast time.

12 tháng 9 2021

16 . .. . ..It will be ... lunch time when we get to York, so let's have lunch there.~No, ...it will  ... not be time for lunch because our train to Edinburgh leaves York at 13.15.

17 ...There is ...a funny smell here. ... .Is it.. turpentine?

18 ...There are ...all sorts of stories about Robin Hood, but ... It is... not known exactly who he was or what he did.

19 ... .It is.. said that if you break a mirror you'll be unlucky for seven years.

20 As he had very bad sight ... It was... difficult for him to recognize people.

21 Can I have a Telegraph, please? said the customer. Im afraid ... .there is.. not any left said the newsagent. But . . there is. . . . a Guardian on the rack beside you. Why not take that? ...It is ... just as good.;

22 ... It is... not necessary to carry your passport everywhere with you but ... .It is.. advisable to carry some document of identity.

23 ...There is ...a guard outside the door and ...there are ... bars on the windows. ... .it is.. impossible to escape.

24 ... .Is there..a garage behind the hotel? ~ Yes, but ..it is. ... rather full. I don't think ... there is... room for your car.

25 One night . . .there was . . . a heavy fall of snow which blocked all the roads. Luckily ... .there was.. plenty of food in the house.

26 ..There was. ...a hotel in the village, so we decided to stay there. . . . . It is. . a charming village and I was very happy there, but my children were bored because ..there is. ... nothing to do in the evenings.

27 ...There are ... five flats in the building—one on each floor. Mine's on the top floor. There is. . . . . . no lift but ... .It is..supposed to be good for the figure to run up and down stairs, . isn't it. . . . .?

28 ... It is...a pity you haven't  another bedroom. ~ Yes, but ... .it is.. quite a big loft, which I am thinking of turning into a bedroom. . . . there is. . . a skylight so ... it is... not . . . a ventilation problem.

29 ...There are ...all sorts of legends about these caves. ...It is ... said that smugglers hid their goods here and that . . there is.. . . an underground passage leading to the village inn.

30 Tell me something about King Lear. ~ ……It was…... the story of a king who divided his kingdom between his daughters. ...It is ... foolish to give away your property that. . . It is. . . . never certain that your family will behave generously to you in return.

31 Has Tom any more children?~ Yes. . . it is , . a daughter, Ann.~ Oh yes, ... it is... Ann who opened the door to us yesterday, . . . isn't it. . .?

32 He thought that ...it is ... better to say nothing about his change of plan.

33 . .. It had been...a long time before I got an answer. Then one day a letter arrived—well, ...it was ... not really a letter,... there was... only one sentence on the paper.

34 ... Is there...a pond beside your house? - Yes, . .there is . . . . ~ How deep . is it. . . . .?

35 We'e done all we can. ... there is... nothing to do now but wait.

36 Just cross out that word and go on....it is ... not necessary to begin again. (or...there is ...no need to begin again.)

I. Write sentences with the cue words, using the past progressive tense. They/ play/ tennis/ 10.30 yesterday morning. Ann/ do/ homework/ 5 o’clock this afternoon. My father/ wash/ car/ from/ five to six. This time last year/ we/ live/ France. The students/ offer/ flowers/ the visitors. I/ cook/ dinner/ half an hour ago. She/ work/ the studio/ that time. What/ you/ do/ from 3 to 6 yesterday afternoon? I/ write/ my report/ 8 o’clock last night. II. Put the verbs into correct form: past...
Đọc tiếp

I. Write sentences with the cue words, using the past progressive tense.
They/ play/ tennis/ 10.30 yesterday morning.
Ann/ do/ homework/ 5 o’clock this afternoon.
My father/ wash/ car/ from/ five to six.
This time last year/ we/ live/ France.
The students/ offer/ flowers/ the visitors.
I/ cook/ dinner/ half an hour ago.
She/ work/ the studio/ that time.
What/ you/ do/ from 3 to 6 yesterday afternoon?
I/ write/ my report/ 8 o’clock last night.
II. Put the verbs into correct form: past progressive or past simple.
The doorbell (ring) ______ while Tom (watch) _______ television.
How fast _______ you _______ (drive) when the accident (happen) ______ ?
Anna and Susan (make) ______ dinner when Martin (arrive) ______ home.
The light (go) ______ out while we (have) ______ dinner. But it (come) ______ again after about ten minutes.
“What _______ you (do) ______ this time yesterday?” – I (work) ______ on the computer.”
It suddenly (begin) ______ rain while Laura (sit) ______ in the garden.
It (be) ______ cold when we (leave) ______ the house that day, and a light snow (fall) _______.
When I last (see) ______ them, they (try) ______ to find a new house near their work.
I (walk) _______ along the street when I suddenly (feel) ______ something hit me in the back. I (not/ know) _______ what it was.
When we (drive) _______ down the hill, a strange object (appear) _______ in the sky.
III. Complete the passage with the most suitable words.
Torquay is one of the (1) ______ popular holiday resorts in Britain. (2) ______ provides entertainment, sports of every kind, etc. You can (3) ______ at the hotels by the sea, or at a comfortable expensive (4) ______ houses. There (5) ______ camping sites, too. Torquay has large sandy beaches (6) ______ you can buy refreshments and hire (7) ______ to sit on. There are large areas of grass land and miles of cliff paths (8) ______ walkers.
IV. Read the passage, then answer the questions.
New York City is located in the southeastern part of New York State just east of New Jersey. The city was found by the Dutch in 1624. At first is called Fort Amsterdam, and then New Amsterdam. In 1664, the English took over the city and renamed it New York. With the population of more than 7 millions in the city and 19 million in the metropolitan region, New York is the largest city in the United States. It is divided into five parts, which are Manhattan, the Bronx, Brooklyn, Queens, and Staten Island. The total area of these parts is 946 square kilometers. Visitors to New York are all attracted by places such as the Statue of Liberty, the Empire State Building, Wall Street, and Broadway theater district. New York is also where tourists can visit some world famous art galleries and museums.
Where is New York City?
Why was New York originally called New Amsterdam?
When was it found?
What is its population?
How many parts are there in the city?
How big is it?
What are visitors to New York attracted by?

8
10 tháng 1 2018

III

Torquay is one of the (1) ____most_____ popular holiday resorts in Britain. (2) ___It_____ provides entertainment, sports of very kind, etc. You can (3) ____live____ at the hotels by the sea, or at comfortable but less expensive (4) ___than_____ houses. There (5) ___are_____ camping sites too. Torquay has large sandy beaches (6) ___where_____ you can buy refreshment and hire (7) ____chairs (ko chắc lắm)____ to sit on. There are areas of grass land and miles of cliff paths (8) ____for____ walkers.

10 tháng 1 2018

-Where is New York City ?

=> In the south of teh USA

- Why was New York originally called New Amsterdam?

=> Because it was founded by the Dutch .

- When was it found?

=>The city was found by the Dutch in 1624

-What is its population?

=> 26million

-How many parts are there in the city?

=> The city was named New York by the Dutch .

- What are visitors to New York attracted by?

=> Visitors to New York are all attracted by places such as the Statue of Liberty, the Empire State Building, Wall Street, and Broadway theater district.

NẾU NHƯ SAI THJ THUI NHA !!tẠI VÌ MK TỰ LÀM KO CHẮC ĐÂU ĐÓ NHEN!!!

18 tháng 2 2022

2Change into Negative/ Interrogative form.

a. There are some bananas in the fridge. (Negative)

There aren't any bananas in the fridge. 

b. There is some bread in the fridge. (Negative)

=> There isn't any bread in the fridge.

c. There are some beautiful flowers in the garden. (Interrogative)

=> Are there any beautiful flowers in the garden?

d. There is some cheese in the cupboard. (Interrogative)

=> Are there any cheese in the cupboard? 
18 tháng 2 2022

con ngừi thật chăm chỉ:>

11 tháng 6 2021

1 You should get a new job

2 you should say you are sorry

3 He should ask his teacher about it

4 You should start having lessons

5 She shouldn't watch IV late at night

6 You should get some exercise

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42. Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42.

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed. Although bioluminescence is a relatively complicated process, it can be reduced to simple terms. Living light occurs when luciferin and oxygen combine in the presence of luciferase. In a few cases, fireflies the most common, an additional compound called ATP is required.

The earliest recorded experiments with bioluminescence in the late 1800s are attributed to Raphael Dubois, who extracted a luminous fluid from a clam, observing that it continued to glow in the test tube for several minutes. He named the substance luciferin, which means “the bearer of life”. In further research, Dubois discovered that several chemicals were required for bioluminescence to occur. In his notes, it was recorded that a second important substance, which he called luciferase, was always present. In later study of small, luminous sea creatures, Newton Harley concluded that luciferin was composed of carbon, hydrogen, and oxygen, which are the building blocks of all living cells. He also proved that there are a variety of luciferin and luciferase, specific to the plants and animals that produce them.

Much remains unknown, but many scientists who are studying bioluminescence now believe that the origin of the phenomenon may be traced to a time when there was no oxygen in the Earth’s atmosphere. When oxygen was gradually introduced to the atmosphere, it was actually poisonous to life forms, plants and animals produced light to use up the oxygen in a gradual but necessary adaptation. It is speculated that millions of years ago, all life may have produced light to survive. As the millennia passed, life forms on Earth became tolerant of, and finally dependent on oxygen, and the adaptation that produced bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or attracting prey.

Question 36: Which of the following is the main topic of the passage?

A. Cold light

B. Luciferase

C. Primitive plants and animals

D. Earth’s atmosphere

1
22 tháng 2 2019

Đáp án A

Dịch nghĩa: Chủ đề chính của bài viết là gì?

A. Ánh sáng lạnh

B. Luciferase

C. Thực vật và động vật nguyên thủy

D. Khi hậu trên trái đất

Giải thích: Ta thấy đoạn văn chủ yếu nói về bioluminescence (sự phát quang sinh học) hay còn gọi là cold light (ánh sáng lạnh)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42. Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42.

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed. Although bioluminescence is a relatively complicated process, it can be reduced to simple terms. Living light occurs when luciferin and oxygen combine in the presence of luciferase. In a few cases, fireflies the most common, an additional compound called ATP is required.

The earliest recorded experiments with bioluminescence in the late 1800s are attributed to Raphael Dubois, who extracted a luminous fluid from a clam, observing that it continued to glow in the test tube for several minutes. He named the substance luciferin, which means “the bearer of life”. In further research, Dubois discovered that several chemicals were required for bioluminescence to occur. In his notes, it was recorded that a second important substance, which he called luciferase, was always present. In later study of small, luminous sea creatures, Newton Harley concluded that luciferin was composed of carbon, hydrogen, and oxygen, which are the building blocks of all living cells. He also proved that there are a variety of luciferin and luciferase, specific to the plants and animals that produce them.

Much remains unknown, but many scientists who are studying bioluminescence now believe that the origin of the phenomenon may be traced to a time when there was no oxygen in the Earth’s atmosphere. When oxygen was gradually introduced to the atmosphere, it was actually poisonous to life forms, plants and animals produced light to use up the oxygen in a gradual but necessary adaptation. It is speculated that millions of years ago, all life may have produced light to survive. As the millennia passed, life forms on Earth became tolerant of, and finally dependent on oxygen, and the adaptation that produced bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or attracting prey.

Question38: The word “primitive” is closest meaning to ______.

A. very old

B. very large

C. very important

D. very common

1
24 tháng 3 2017

Đáp án A

Dịch nghĩa: Từ “primitive” gần nghĩa nhất với _______.

A. rất nhiều tuổi

B. rất lớn

C. rất quan trọng

D. rất phổ biến

Giải thích: be primitive: rất lâu đời, nguyên thủy = very old

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42. Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42.

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed. Although bioluminescence is a relatively complicated process, it can be reduced to simple terms. Living light occurs when luciferin and oxygen combine in the presence of luciferase. In a few cases, fireflies the most common, an additional compound called ATP is required.

The earliest recorded experiments with bioluminescence in the late 1800s are attributed to Raphael Dubois, who extracted a luminous fluid from a clam, observing that it continued to glow in the test tube for several minutes. He named the substance luciferin, which means “the bearer of life”. In further research, Dubois discovered that several chemicals were required for bioluminescence to occur. In his notes, it was recorded that a second important substance, which he called luciferase, was always present. In later study of small, luminous sea creatures, Newton Harley concluded that luciferin was composed of carbon, hydrogen, and oxygen, which are the building blocks of all living cells. He also proved that there are a variety of luciferin and luciferase, specific to the plants and animals that produce them.

Much remains unknown, but many scientists who are studying bioluminescence now believe that the origin of the phenomenon may be traced to a time when there was no oxygen in the Earth’s atmosphere. When oxygen was gradually introduced to the atmosphere, it was actually poisonous to life forms, plants and animals produced light to use up the oxygen in a gradual but necessary adaptation. It is speculated that millions of years ago, all life may have produced light to survive. As the millennia passed, life forms on Earth became tolerant of, and finally dependent on oxygen, and the adaptation that produced bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or attracting prey.

Question 41: Bioluminescence is described as all of the following EXCEPT ______.

A. a complex chemicals process

B. an adaptation of early plants and animals to the environment

C. a form of cold light

D. a poisonous substance

1
16 tháng 11 2018

Đáp án D

Dịch nghĩa: Sự phát quang sinh học được miêu tả như tất cả những điều sau NGOẠI TRỮ _______.

A. một quá trình hóa học phức tạp

B. một sự thích ứng của những loài động thực vật tiền sử với môi trường

C. một dạng ánh sáng lạnh

D. một chất có độc

Giải thích: Ta thấy các đáp án còn lại đều được nói đến như những đặc tính của sự phát quang sinh học:

A. Đoạn 1: “Although bioluminescence is a relatively complicated process, it can be reduced to simple terms” - “Mặc dù sự phát quang sinh học là một quá trình tương đối phức tạp, nó có thể được giảm xuống đến những khái niệm đơn giản.”

B. Đoạn cuối: “It is speculated that millions of years ago, all life may have produced light to survive” - “Người ta đoán rằng hàng triệu năm về trước, toàn bộ sự sống có thể đã phải tạo ra ánh sáng để sinh tồn.”

C. Câu đầu bài viết: “Light from a living plant or animal is called bioluminescence, or cold light...” - “Ánh sáng từ một loài động vật hay thực vật còn sống được gọi là sự phát quang sinh học, hay ánh sáng lạnh. . .”

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42. Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed....
Đọc tiếp

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 36 to 42.

Light from a living plant or animal is called bioluminescence, or cold light, to distinguish it from incandescence or heat-generating light. Life forms could not produce incandescent light without being burned. Their light is produced in chemicals combining in such a way that little or no measurable heat is produced, and the life forms generating it are unharmed. Although bioluminescence is a relatively complicated process, it can be reduced to simple terms. Living light occurs when luciferin and oxygen combine in the presence of luciferase. In a few cases, fireflies the most common, an additional compound called ATP is required.

The earliest recorded experiments with bioluminescence in the late 1800s are attributed to Raphael Dubois, who extracted a luminous fluid from a clam, observing that it continued to glow in the test tube for several minutes. He named the substance luciferin, which means “the bearer of life”. In further research, Dubois discovered that several chemicals were required for bioluminescence to occur. In his notes, it was recorded that a second important substance, which he called luciferase, was always present. In later study of small, luminous sea creatures, Newton Harley concluded that luciferin was composed of carbon, hydrogen, and oxygen, which are the building blocks of all living cells. He also proved that there are a variety of luciferin and luciferase, specific to the plants and animals that produce them.

Much remains unknown, but many scientists who are studying bioluminescence now believe that the origin of the phenomenon may be traced to a time when there was no oxygen in the Earth’s atmosphere. When oxygen was gradually introduced to the atmosphere, it was actually poisonous to life forms, plants and animals produced light to use up the oxygen in a gradual but necessary adaptation. It is speculated that millions of years ago, all life may have produced light to survive. As the millennia passed, life forms on Earth became tolerant of, and finally dependent on oxygen, and the adaptation that produced bioluminescence was no longer necessary, but some primitive plants and animals continued to use the light for new functions such as mating or attracting prey.

Question 37: According to the author, why has bioluminescence continued in modern plants and animals?

A. For survival

B. For attracting prey

C. For producing heat

D. For burning excess oxygen

1
26 tháng 8 2018

Đáp án B

Dịch nghĩa: Theo tác giả, tại sao sự phát quang sinh học lại tiếp diễn đối với thực và động vật hiện đại?

A. Để sinh tồn

B. Để hấp dẫn con mồi

C. Để sản sinh nhiệt

D. Để đốt cháy oxy thừa

Giải thích: Thông tin nằm ở “. . .but some primitive plants and animals continued to use the light for new functions such as mating or attracting prey” - “nhưng một số loài động thực vật nguyên thủy vẫn tiếp tục sử dụng ánh sáng với những chức năng mới như tìm bạn đời hay hấp dẫn con mồi.”