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Read the article about a type of art. Are the sentences true or false? Write T or F.When we think of art, we normally picture something which can exist for centuries. But there has always been a type of art which doesn't last. This is often referred to as 'temporary' art. Sculptures which are made of snow or ice, paintings in coloured sand, chalk drawings done on public pavements: it's not that these don't have artistic value, but they are designed to disappear.Jorge Rodríguez-Gerada is a...
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Read the article about a type of art. Are the sentences true or false? Write T or F.

When we think of art, we normally picture something which can exist for centuries. But there has always been a type of art which doesn't last. This is often referred to as 'temporary' art. Sculptures which are made of snow or ice, paintings in coloured sand, chalk drawings done on public pavements: it's not that these don't have artistic value, but they are designed to disappear.

Jorge Rodríguez-Gerada is a modern 'temporary' artist, and one who gets a lot of attention for his work. He uses groups of volunteers to help him, and his pieces take a long time to plan and create. But they are mostly talked about because the final results are so impressive. For the past few years, Rodríguez-Gerada has been creating gigantic faces in empty spaces in cities. To people on the ground, it looks like a garden, and it is hard to see any kind of design in it. In fact, GPS mapping is used to set out the design. Then an army of workers use this master plan to create the image which the artist has planned.

In 2014, the artist created an astonishing face on the National Mall in Washington, DC. It covered an area of 25,000 square metres, and it was created because the mall was getting new gardens, and the land wasn't going to be used for a while. The portrait was of a young man of mixed race, and was called Of the Many, One. The artist says that it showed one of the millions of faces that represent the American people. After a while, the sand and soil of the portrait were mixed together, and new lawns were planted in its place. The portrait has disappeared, but it will not easily be forgotten.

1 Temporary art is a new kind of art.

2 Artists use sand or chalk in their artwork so that it will exist for a long time.

3 Jorge Rodríguez-Gerada is an important artist in the field of temporary art.

4 His work is very quick to create.

5 He uses maps to plan his artwork.

6 A lot of people help him to create his art.

7 Jorge's artwork called Of the Many, One was part of a new garden design for the National Mall.

8 The artwork does not exist anymore.

1
D
datcoder
CTVVIP
19 tháng 11 2023

1 Temporary art is a new kind of art.

(Nghệ thuật tạm thời là một loại hình nghệ thuật mới.)

Thông tin: “There has always been a type of art which doesn't last.”

(Luôn có một loại hình nghệ thuật không trường tồn.)

=> Chọn False

2 Artists use sand or chalk in their artwork so that it will exist for a long time.

(Các nghệ sĩ sử dụng cát hoặc phấn trong tác phẩm nghệ thuật của họ để tác phẩm tồn tại lâu dài.)

Thông tin: “it's not that these don't have artistic value, but they are designed to disappear.”

(Không phải những thứ này không có giá trị nghệ thuật, nhưng chúng được thiết kế để biến mất.)

=> Chọn False

3 Jorge Rodríguez-Gerada is an important artist in the field of temporary art.

(Jorge Rodríguez-Gerada là một nghệ sĩ quan trọng trong lĩnh vực nghệ thuật tạm thời.)

Thông tin: “Jorge Rodríguez-Gerada is a modern 'temporary' artist, and one who gets a lot of attention for his work.”

(Jorge Rodríguez-Gerada là một nghệ sĩ 'tạm thời' hiện đại, và là người được chú ý nhiều nhờ tác phẩm của mình.")

=> Chọn True

4 His work is very quick to create.

(Tác phẩm của anh ấy được tạo ra rất nhanh.)

Thông tin: “his pieces take a long time to plan and create.”

(các tác phẩm của anh ấy mất nhiều thời gian để lên kế hoạch và sáng tạo.)

=> Chọn False

5 He uses maps to plan his artwork.

(Anh ấy sử dụng bản đồ để lên kế hoạch cho tác phẩm nghệ thuật của mình.)

Thông tin: “"In fact, GPS mapping is used to set out the design.”

(Trên thực tế, bản đồ GPS được sử dụng để thiết kế.)

=> Chọn True

6 A lot of people help him to create his art.

(Rất nhiều người giúp anh ấy tạo ra tác phẩm nghệ thuật.)

Thông tin: “He uses groups of volunteers to help him, and his pieces take a long time to plan and create.”

(Anh ấy sử dụng các nhóm tình nguyện viên để giúp đỡ anh ấy, và các tác phẩm của anh ấy mất nhiều thời gian để lên kế hoạch và sáng tạo.)

=> Chọn True

7 Jorge's artwork called Of the Many, One was part of a new garden design for the National Mall.

(Tác phẩm nghệ thuật của Jorge có tên Of the Many, One là một phần của thiết kế sân vườn mới cho National Mall.)

Thông tin: “It covered an area of 25,000 square metres, and it was created because the mall was getting new gardens, and the land wasn't going to be used for a while.”

(Nó có diện tích 25.000 mét vuông, và nó được tạo ra bởi vì trung tâm thương mại đang có những khu vườn mới và khu đất sẽ không được sử dụng trong một thời gian.)

=> Chọn True

8 The artwork does not exist anymore.

(Tác phẩm nghệ thuật không còn tồn tại nữa.)

Thông tin: “The portrait has disappeared, but it will not easily be forgotten.”

(Bức chân dung đã biến mất, nhưng nó sẽ không dễ bị lãng quên.)

=> Chọn True

Think about your daily life. Do you follow the same read to work every day? Do you sit in the same place in class? When you get dressed, do you always put the same leg or arm in first? You probably do, because we all have routines in our lives. Routines save time and energy because you do them without thinking, that's why they are so important in the morning when your brain isn't active. Here's Jo talking about her morning routine 'Oh yes. I always do exactly the same things. I wake up at...
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Think about your daily life. Do you follow the same read to work every day? Do you sit in the same place in class? When you get dressed, do you always put the same leg or arm in first? You probably do, because we all have routines in our lives.

Routines save time and energy because you do them without thinking, that's why they are so important in the morning when your brain isn't active. Here's Jo talking about her morning routine

'Oh yes. I always do exactly the same things. I wake up at seven o'clock every morning, but I don't get quarter past seven. I switch on the radio and listen to the news. Then I go to the too and I brush my-teeth. I have a shower and dry my hair. Then I choose my clothes and I get dressed. I don'y eat anything for breakfast. I just have a cup of coffee. Then I go to work. Yes, it's always the same.'

Routines are very useful. but they also make you uncreative. So sometimes it's a good idea to break your routines. Get out of bed on the opposite side. Listen to a different route to work. Eat something different for brealfast. Change your routine. You never know, it could change your life.

1. This passage is mainly concerned with...............................

a.our usual ways of doing things

b. our daily activities

c. Jo's timetable

d. changes in our lives

2. according to the passage, routines are useful because.........................

a. we can do them in the morning

b. they make a habit of never thinking

c. they save time and energy

d. we all have them in our lives

3. the word 'loo' in line 9 can best be replaced with.....................

a. balcony

b. bedroom

c. sink

d. toilet

4.what is the main disadvantage of routines?

a. Routines make us unable to create things or to have new ideas

b. Routines may change our life

c. Routines make a habit of never thinking before doing

d. Routines make us do the same things day after day

5. which of the sentences is true?

a. Routines make our brain creative

b.people who have routines are unable to think

c. we shouldn'r break our routines

d. our lives could be changed if we change our routines

0
Read the passage and check (ü) whether the following statements are true (T) or false (F).Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to...
Đọc tiếp

Read the passage and check (ü) whether the following statements are true (T) or false (F).

Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to another so that we can do work more easily and live more comfortably.

All forms of energy are stored in different ways, in the energy sources that we use every day. These sources are divided into two groups – renewable and nonrenewable. Renewable energy source is an energy source that can be replenished in a short period of time. Nonrenewable energy source is an energy source that we are using up and cannot recreate in a short period of time.

Renewable energy sources include solar energy, which comes from the Sun and can be turned into electricity and heat. Wind, geothermal energy from inside the Earth, biomass from plants, and hydropower and ocean energy from water are also renewable energy sources.

However, we get most of our energy from nonrenewable energy sources, which include the fossil fuels – oil, natural gas, and coal. They’re called fossil fuels because they were formed over millions and millions of years by the action of heat from the Earth’s core and pressure from rock and soil on the remains of dead plants and animals. Another nonrenewable energy source is the element uranium, whose atoms we split (through a process called nuclear fission) to create heat and ultimately electricity.

Question: Most of our energy we use every day comes from renewable energy sources.

A. True

B. False

2
27 tháng 11 2019

Đáp án: B

23 tháng 5 2021

B nha bn

10 tháng 9 2023

1. wildlife

2. swimming pool

3. sea level

4. mobile phone

Read the passage and check (ü) whether the following statements are true (T) or false (F).Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to...
Đọc tiếp

Read the passage and check (ü) whether the following statements are true (T) or false (F).

Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to another so that we can do work more easily and live more comfortably.

All forms of energy are stored in different ways, in the energy sources that we use every day. These sources are divided into two groups – renewable and nonrenewable. Renewable energy source is an energy source that can be replenished in a short period of time. Nonrenewable energy source is an energy source that we are using up and cannot recreate in a short period of time.

Renewable energy sources include solar energy, which comes from the Sun and can be turned into electricity and heat. Wind, geothermal energy from inside the Earth, biomass from plants, and hydropower and ocean energy from water are also renewable energy sources.

However, we get most of our energy from nonrenewable energy sources, which include the fossil fuels – oil, natural gas, and coal. They’re called fossil fuels because they were formed over millions and millions of years by the action of heat from the Earth’s core and pressure from rock and soil on the remains of dead plants and animals. Another nonrenewable energy source is the element uranium, whose atoms we split (through a process called nuclear fission) to create heat and ultimately electricity.

Question: Renewable energy can be turned into electricity and heat.

A. True

B. False

1
16 tháng 4 2017

Đáp án: A

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Animation traditionally is done by hand-drawing or painting successive frame of an object, each slightly different than the proceeding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Animation traditionally is done by hand-drawing or painting successive frame of an object, each slightly different than the proceeding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first and the last drawing. This is generally referred to as computer-assisted animation, because the computer is more of a helper than an originator.

In full computer animation, complex mathematical formulas are used to produce the final sequences of pictures. These formulas operate on extensive databases of numbers that defines the objects in the pictures as they exist in mathematical space. The database consists of endpoints, and color and intensity information. Highly trained professionals are needed to produce such effects because animation that obtains high degrees of realism involves computer techniques from three-dimensional transformation, shading, and curvatures.

High-tech computer animation for film involves very expensive computer systems along with special color terminals or frame buffers. The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen.

A camera can be used to film directly from the computer’s display screen, but for the highest quality images possible, expensive film recorders are used. The computer computers the positions and colors for the figures in the picture, and sends this information to the recorder, which captures it on film. Sometimes, however, the images are stored on a large magnetic disk before being sent to the recorder. Once this process is completed, it is replaced for the next frame. When the entire sequence has been recorded on the film, the film must be developed before the animation can be viewed. If the entire sequence does not seem right, the motions must be corrected, recomputed, redisplayed, and rerecorded. This approach can be very expensive and time – consuming. Often, computer-animation companies first do motion tests with simple computer-generated line drawings before selling their computers to the task of calculating the high-resolution, realistic-looking images.

Question. According to the passage, the frame buffers mentioned in the third paragraph are used to ______

A. add color to the images

B. expose several frames at the same time

C. store individual images

D. create new frames

1
8 tháng 1 2018

Đáp án C.

Thông tin: The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen

Dịch: Các khung hình đệm chỉ là một bộ nhớ ảnh khổng lồ để xem từng khung hình một. Nó tạm thời chứa những bức ảnh để hiển thị trên màn hình.

The Penny Black It might not have looked very impressive, but the Penny Black, now 170 years old, was the first stamp to be created and it launched the modem postal system in Britain. Before 1840 and the arrival of the Penny Black, you had to be rich and patient to use the Royal Mail. Delivery was charged according to the miles travelled and the number of sheets of paper used; a 2-page letter sent from Edinburgh to London, for example, would have cost 2 shillings, or more than £7 in today’s...
Đọc tiếp
The Penny Black

It might not have looked very impressive, but the Penny Black, now 170 years old, was the first stamp to be created and it launched the modem postal system in Britain.

Before 1840 and the arrival of the Penny Black, you had to be rich and patient to use the Royal Mail. Delivery was charged according to the miles travelled and the number of sheets of paper used; a 2-page letter sent from Edinburgh to London, for example, would have cost 2 shillings, or more than £7 in today’s money. And when the top-hatted letter carrier came to deliver it, it was the recipient who had to pay for the postage. Letter writers employed various ruses to reduce the cost, doing everything possible to cram more words onto a page. Nobody bothered with heavy envelopes; instead, letters would be folded and sealed with wax. You then had to find a post office - there were no pillar boxes - and hope your addressee didn't live in one of the several rural areas which were not served by the system. If you were lucky, your letter would arrive (it could take days) without being read or censored.

The state of mail had been causing concern throughout the 1830s, but it was Rowland Hill, an inventor, teacher and social reformer from Kidderminster, who proposed a workable plan for change. Worried that a dysfunctional, costly service would stifle communication just as Britain was in the swing of its second industrial revolution, he believed reform would ease the distribution of ideas and stimulate trade and business, delivering the same promise as the new railways.

Hill’s proposal for the penny post, which meant any letter weighing less than half an ounce (14 grams) could be sent anywhere in Britain for about 30p in today’s money, was so radical that the Postmaster General, Lord Lichfield, said, 'Of all the wild and visionary schemes which I ever heard of, it is the most extravagant.’ Lord Lichfield spoke for an establishment not convinced of the need for poor people to post anything. But merchants and reformers backed Hill. Soon the government told him to make his scheme work. And that meant inventing a new type of currency.

Hill quickly settled on 'a bit of paper covered at the back with a glutinous wash which the user might, by applying a little moisture, attach to the back of a letter’. Stamps would be printed in sheets of 240 that could be cut using scissors or a knife. Perforations would not arrive until 1854. The idea stuck, and in August 1839 the Treasury launched a design competition open to ‘all artists, men of science and the public in general’. The new stamp would need to be resistant to forgery, and so it was a submission by one Mr Cheverton that Hill used as the basis for one of the most striking designs in history. Cheverton, who worked as a sculptor and an engineer, determined that a portrait of Queen Victoria, engraved for a commemorative coin when she was a 15-year-old princess, was detailed enough to make copying difficult, and recognisable enough to make fakes easy to spot. The words ‘Postage’ and ‘One Penny’ were added alongside flourishes and ornamental stars. Nobody thought to add the word ‘Britain’, as it was assumed that the stamps would solely be put to domestic use.

With the introduction of the new postal system, the Penny Black was an instant hit, and printers struggled to meet demand. By the end of 1840, more than 160 million letters had been sent - more than double the previous year. It created more work for the post office, whose reform continued with the introduction of red letter boxes, new branches and more frequent deliveries, even to the remotest address, but its lasting impact on society was more remarkable.

Hill and his supporters rightly predicted that cheaper post would improve the ‘diffusion of knowledge’. Suddenly, someone in Scotland could be reached by someone in London within a day or two. And as literacy improved, sections of society that had been disenfranchised found a voice.

Tristram Hunt, an historian, values the ‘flourishing of correspondence’ that followed the arrival of stamps. ‘While I was writing my biography of Friedrich Engels I could read the letters he and Marx sent between Manchester and London,’ he says. ‘They wrote to each other three times a day, pinging ideas back and forth so that you can almost follow a real-time correspondence.’

The penny post also changed the nature of the letter. Weight-saving tricks such as cross-writing began to die out, while the arrival of envelopes built confidence among correspondents that mail would not be stolen or read. And so people wrote more private things - politically or commercially sensitive information or love letters. ‘In the early days of the penny post, there was still concern about theft,’ Hunt says. ‘Engels would still send Marx money by ripping up five-pound notes and sending the pieces in different letters.’ But the probity of the postal system became a great thing and it came to be expected that your mail would not be tampered with.

For all its brilliance, the Penny Black was technically a failure. At first, post offices used red ink to cancel stamps so that they could not be used again. But the ink could be removed. When in 1842, it was determined that black ink would be more robust, the colour of the Penny Black became a sort of browny red, but Hill’s brainchild had made its mark.

Choose the correct letter, A, B, C or D.

1. One of the characteristics of the postal service before the 1840s was that

A. postmen were employed by various organisations.
B. letters were restricted to a certain length.
C. distance affected the price of postage.
D. the price of delivery kept going up.

2. Letter writers in the 1830s

A. were not responsible for the cost of delivery.
B. tried to fit more than one letter into an envelope.
C. could only send letters to people living in cities.
D. knew all letters were automatically read by postal staff.

3. What does the text say about Hill in the 1830s?

A. He was the first person to express concern about the postal system.
B. He considered it would be more efficient for mail to be delivered by rail.
C. He felt that postal service reform was necessary for commercial development.
D. His plan received support from all the important figures of the day.

3
30 tháng 7 2019
Choose the correct letter, A, B, C or D.

1. One of the characteristics of the postal service before the 1840s was that

A. postmen were employed by various organisations.
B. letters were restricted to a certain length.
C. distance affected the price of postage.
D. the price of delivery kept going up.

2. Letter writers in the 1830s

A. were not responsible for the cost of delivery.
B. tried to fit more than one letter into an envelope.
C. could only send letters to people living in cities.
D. knew all letters were automatically read by postal staff.

3. What does the text say about Hill in the 1830s?

A. He was the first person to express concern about the postal system.
B. He considered it would be more efficient for mail to be delivered by rail.
C. He felt that postal service reform was necessary for commercial development.
D. His plan received support from all the important figures of the day.

30 tháng 7 2019
The Penny Black

It might not have looked very impressive, but the Penny Black, now 170 years old, was the first stamp to be created and it launched the modem postal system in Britain.

Before 1840 and the arrival of the Penny Black, you had to be rich and patient to use the Royal Mail. Delivery was charged according to the miles travelled and the number of sheets of paper used; a 2-page letter sent from Edinburgh to London, for example, would have cost 2 shillings, or more than £7 in today’s money. And when the top-hatted letter carrier came to deliver it, it was the recipient who had to pay for the postage. Letter writers employed various ruses to reduce the cost, doing everything possible to cram more words onto a page. Nobody bothered with heavy envelopes; instead, letters would be folded and sealed with wax. You then had to find a post office - there were no pillar boxes - and hope your addressee didn't live in one of the several rural areas which were not served by the system. If you were lucky, your letter would arrive (it could take days) without being read or censored.

The state of mail had been causing concern throughout the 1830s, but it was Rowland Hill, an inventor, teacher and social reformer from Kidderminster, who proposed a workable plan for change. Worried that a dysfunctional, costly service would stifle communication just as Britain was in the swing of its second industrial revolution, he believed reform would ease the distribution of ideas and stimulate trade and business, delivering the same promise as the new railways.

Hill’s proposal for the penny post, which meant any letter weighing less than half an ounce (14 grams) could be sent anywhere in Britain for about 30p in today’s money, was so radical that the Postmaster General, Lord Lichfield, said, 'Of all the wild and visionary schemes which I ever heard of, it is the most extravagant.’ Lord Lichfield spoke for an establishment not convinced of the need for poor people to post anything. But merchants and reformers backed Hill. Soon the government told him to make his scheme work. And that meant inventing a new type of currency.

Hill quickly settled on 'a bit of paper covered at the back with a glutinous wash which the user might, by applying a little moisture, attach to the back of a letter’. Stamps would be printed in sheets of 240 that could be cut using scissors or a knife. Perforations would not arrive until 1854. The idea stuck, and in August 1839 the Treasury launched a design competition open to ‘all artists, men of science and the public in general’. The new stamp would need to be resistant to forgery, and so it was a submission by one Mr Cheverton that Hill used as the basis for one of the most striking designs in history. Cheverton, who worked as a sculptor and an engineer, determined that a portrait of Queen Victoria, engraved for a commemorative coin when she was a 15-year-old princess, was detailed enough to make copying difficult, and recognisable enough to make fakes easy to spot. The words ‘Postage’ and ‘One Penny’ were added alongside flourishes and ornamental stars. Nobody thought to add the word ‘Britain’, as it was assumed that the stamps would solely be put to domestic use.

With the introduction of the new postal system, the Penny Black was an instant hit, and printers struggled to meet demand. By the end of 1840, more than 160 million letters had been sent - more than double the previous year. It created more work for the post office, whose reform continued with the introduction of red letter boxes, new branches and more frequent deliveries, even to the remotest address, but its lasting impact on society was more remarkable.

Hill and his supporters rightly predicted that cheaper post would improve the ‘diffusion of knowledge’. Suddenly, someone in Scotland could be reached by someone in London within a day or two. And as literacy improved, sections of society that had been disenfranchised found a voice.

Tristram Hunt, an historian, values the ‘flourishing of correspondence’ that followed the arrival of stamps. ‘While I was writing my biography of Friedrich Engels I could read the letters he and Marx sent between Manchester and London,’ he says. ‘They wrote to each other three times a day, pinging ideas back and forth so that you can almost follow a real-time correspondence.’

The penny post also changed the nature of the letter. Weight-saving tricks such as cross-writing began to die out, while the arrival of envelopes built confidence among correspondents that mail would not be stolen or read. And so people wrote more private things - politically or commercially sensitive information or love letters. ‘In the early days of the penny post, there was still concern about theft,’ Hunt says. ‘Engels would still send Marx money by ripping up five-pound notes and sending the pieces in different letters.’ But the probity of the postal system became a great thing and it came to be expected that your mail would not be tampered with.

For all its brilliance, the Penny Black was technically a failure. At first, post offices used red ink to cancel stamps so that they could not be used again. But the ink could be removed. When in 1842, it was determined that black ink would be more robust, the colour of the Penny Black became a sort of browny red, but Hill’s brainchild had made its mark.

Choose the correct letter, A, B, C or D.

1. One of the characteristics of the postal service before the 1840s was that

A. postmen were employed by various organisations.
B. letters were restricted to a certain length.
C. distance affected the price of postage.
D. the price of delivery kept going up.

2. Letter writers in the 1830s

A. were not responsible for the cost of delivery.
B. tried to fit more than one letter into an envelope.
C. could only send letters to people living in cities.
D. knew all letters were automatically read by postal staff.

3. What does the text say about Hill in the 1830s?

A. He was the first person to express concern about the postal system.
B. He considered it would be more efficient for mail to be delivered by rail.
C. He felt that postal service reform was necessary for commercial development.
D. His plan received support from all the important figures of the day.

Read the passage and tick true (T) or false (F).Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to another so that we can do work more easily...
Đọc tiếp

Read the passage and tick true (T) or false (F).

Energy makes change; it does things for us. It moves cars along the road and boats over the water. It bakes a cake in the oven and keeps ice frozen in the freezer. It plays our favourite songs on the radio and lights our homes. Energy makes our bodies grow and allows our minds to think. Scientists define energy as the ability to do work. People have learned how to change energy from one from one form to another so that we can do work more easily and live more comfortably.

All forms of energy are stored in different ways, in the energy sources that we use every day. These sources are divided into two groups – renewable and nonrenewable. Renewable energy source is an energy source that can be replenished in a short period of time. Nonrenewable energy source is an energy source that we are using up and cannot recreate in a short period of time.

Renewable energy sources include solar energy, which comes from the Sun and can be turned into electricity and heat. Wind, geothermal energy from inside the Earth, biomass from plants, and hydropower and ocean energy from water are also renewable energy sources.

However, we get most of our energy from nonrenewable energy sources, which include the fossil fuels – oil, natural gas, and coal. They’re called fossil fuels because they were formed over millions and millions of years by the action of heat from the Earth’s core and pressure from rock and soil on the remains of dead plants and animals. Another nonrenewable energy source is the element uranium, whose atoms we split (through a process called nuclear fission) to create heat and ultimately electricity.

Question Nonrenewable energy source is an energy source that can be replenished in a short period of time and renewable energy source is an energy source that we are using up and cannot recreate in a short period of time.

A. True

B. False

1
29 tháng 1 2017

Đáp án: B