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A rather surprisingly geographical feature of Antartica is that a huge freshwater lake, one of the world’s largest and deepest, lies hidden there under four kilometers of ice. Now known as Lake Vostok, this huge body of water is located under the ice block that comprises Antartica. The lake is able to exist in its unfrozen state beneath this block of ice because its waters are warmed by geothermal heat from the earth’s core. The thick glacier above Lake Vostok actually insulates it from the frigid temperatures on the surface.

The lake was first discovered in the 1970s while a reseach team was conducting an aerial survey of the area. Radio waves from the survey equipment penetrated the ice and reveal a body of water of undeterminate size. It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.

The discovery of such a huge freshwater lake trapped under Antartica is of interest to the scientific community because of the potential that the lake contains ancient microbes that have survived for thousands upon thousands of years, unaffected by factors such as nuclear fallout and the elevated ultraviolet light that have affected organisms in more exposed areas. The downside of the discovery, however, lies in the difficulty of conducting research on the lake in such harsh climate and in the problems associated with obtaining uncontaminated samples from the lake without actually exposing the lake to contamination. Scientists are looking for possible ways to accomplish this.

31. The word “hidden” in paragraph 1 is closest in meaning to ____________.

A. undrinkable B. untouched C. unexploitable D. undiscovered

32. What is true of Lake Vostok?

A. It is completely frozen. B. It is a saltwater lake.

C. It is beneath a thick slab of ice. D. It is heated by the sun.

33. Which of the following is closest in meaning to “frigid” in paragraph 1?

A. extremely cold B. easily broken C. quite harsh D. lukewarm

34. All of the following are true about the 1970 survey of Antartica EXCEPT that it ______________.

A. was conducted by air B. made use of radio waves

C. could not determine the lake’s exact size. D. was controlled by a satellite.

35. It can be inferred from the passage that the ice would not be flat if _____________________.

A. there were no lake underneath B. the lake weren’t so big

C. Antartica weren’t so cold D. radio waves weren’t used

36. The word “microbes” in paragraph 3 could best be replaced by which of the following?

A. pieces of dust B. tiny bubbles C. tiny organisms D. rays of light

37. Lake Vostok is potentially important to scientists because it__________.

A. can be studied using radio waves B. may contain uncontaminated microbes

C. may have elevated levels of ultraviolet light D. has already been contaminated

38. The word “downside” in paragraph 3 is closest in meaning to ___________.

A. bottom level B. negative aspect C. underside D. buried section

39. The last paragraph suggests that scientists should be aware of___________.

A. further discoveries on the surface of Antartica

B. problems with satellite-borne radar equipment

C. ways to study Lake Vostok without contaminating it.

D. the harsh climate of Antartica

40. The purpose of the passage is to____________.

A. explain how Lake Vostok was discovered

B. provide satellite data concerning Antartica.

C. discuss future plans for Lake Vostok

D. present an unexpected aspect of Antartica’s geography.

1
23 tháng 6 2017

31. The word “hidden” in paragraph 1 is closest in meaning to ____________.

A. undrinkable B. untouched C. unexploitable D. undiscovered

32. What is true of Lake Vostok?

A. It is completely frozen. B. It is a saltwater lake.

C. It is beneath a thick slab of ice. D. It is heated by the sun.

33. Which of the following is closest in meaning to “frigid” in paragraph 1?

A. extremely cold B. easily broken C. quite harsh D. lukewarm

34. All of the following are true about the 1970 survey of Antartica EXCEPT that it ______________.

A. was conducted by air B. made use of radio waves

C. could not determine the lake’s exact size. D. was controlled by a satellite.

35. It can be inferred from the passage that the ice would not be flat if _____________________.

A. there were no lake underneath B. the lake weren’t so big

C. Antartica weren’t so cold D. radio waves weren’t used

36. The word “microbes” in paragraph 3 could best be replaced by which of the following?

A. pieces of dust B. tiny bubbles C. tiny organisms D. rays of light

37. Lake Vostok is potentially important to scientists because it__________.

A. can be studied using radio waves B. may contain uncontaminated microbes

C. may have elevated levels of ultraviolet light D. has already been contaminated

38. The word “downside” in paragraph 3 is closest in meaning to ___________.

A. bottom level B. negative aspect C. underside D. buried section

39. The last paragraph suggests that scientists should be aware of___________.

A. further discoveries on the surface of Antartica

B. problems with satellite-borne radar equipment

C. ways to study Lake Vostok without contaminating it.

D. the harsh climate of Antartica

40. The purpose of the passage is to____________.

A. explain how Lake Vostok was discovered

B. provide satellite data concerning Antartica.

C. discuss future plans for Lake Vostok

D. present an unexpected aspect of Antartica’s geography.

II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet. There is much more water than land (1)___________ the surface of the earth. The sea and oceans (2)_____________ nearly four-fifths of the whole world, and only one-fifth of (3)__________ land. If you traveled over the earth (4)______ ________different directions, you would have to spend much more of your time (5)________________ on water than on roads or railways. We sometimes forget...
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II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet.

There is much more water than land (1)___________ the surface of the earth. The sea and oceans (2)_____________ nearly four-fifths of the whole world, and only one-fifth of (3)__________ land. If you traveled over the earth (4)______ ________different directions, you would have to spend much more of your time (5)________________ on water than on roads or railways. We sometimes forget that (6)_______________ every mile of land there is four miles of water.

There is much water on the surface of our earth that we (7)______________ to use two words to describe. We use the word seas to (8)______________ those parts of water surface which (9)______________ only a few hundreds of miles wide, the word oceans to describe the huge areas of water which are thousands of miles wide (10)__________ very deep.

III. Read the following passage carefully and choose the best answer to each question. Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet.

One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.

Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.

1. According to the writer, one environmental problem in the world today is ________ .

A. acid rain B. industrial pollution. C. safe water shortage. D. population explosion .

2. Many sources of water are not drinkable because of _______ .

A. acid rain. B. industrial pollution. C. garbage D. all A, B, C, are correct

3. What is serious problem of Lake Baikal in Russia?

A. It contains a rich variety of animals and plants.

B. It is polluted by massive volumes of industrial wastes discharged into it .

C. It has 1,300 rare species that do not exist anywhere else in the world .

D. The government did not have the power to enforce laws and regulations.

4. How many countries throw industrial waste into the Mediterranean Sea regularly?

A. nearly 16 B. exactly 16. C. exactly 15 D. less than 15.

5. What is the message to the reader?

A. We should take action to protect our water resources.

B. We should take all water resources into account.

C. We should limit the use of water resources.

D. We should encourage people to use safe water.

1
28 tháng 12 2017

II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet.

There is much more water than land (1)____on_______ the surface of the earth. The sea and oceans (2)_____are________ nearly four-fifths of the whole world, and only one-fifth of (3)___surface _______ land. If you traveled over the earth (4)____in_____different directions, you would have to spend much more of your time (5)______travelling__________ on water than on roads or railways. We sometimes forget that (6)______each_________ every mile of land there is four miles of water.

There is much water on the surface of our earth that we (7)______have________ to use two words to describe. We use the word seas to (8)____describle __________ those parts of water surface which (9)_______are _______ only a few hundreds of miles wide, the word oceans to describe the huge areas of water which are thousands of miles wide (10)_____and_____ very deep.

III. Read the following passage carefully and choose the best answer to each question. Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet.

One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.

Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.

1. According to the writer, one environmental problem in the world today is ________ .

A. acid rain B. industrial pollution. C. safe water shortage. D. population explosion .

2. Many sources of water are not drinkable because of _______ .

A. acid rain. B. industrial pollution. C. garbage D. all A, B, C, are correct

3. What is serious problem of Lake Baikal in Russia?

A. It contains a rich variety of animals and plants.

B. It is polluted by massive volumes of industrial wastes discharged into it .

C. It has 1,300 rare species that do not exist anywhere else in the world .

D. The government did not have the power to enforce laws and regulations.

4. How many countries throw industrial waste into the Mediterranean Sea regularly?

A. nearly 16 B. exactly 16. C. exactly 15 D. less than 15.

5. What is the message to the reader?

A. We should take action to protect our water resources.

B. We should take all water resources into account.

C. We should limit the use of water resources.

D. We should encourage people to use safe water.

VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less...
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VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep. ______ 2. A tornado B. The Earth has a crust under the oceans and the land that we live on. This crust made of massive areas of flat rock called tectonic plates, which float on the Earth’s mantle, the inside layer of the Earth. When the plates move slowly together, this movement forces energy through the crusts to the Earth’s surface. The energy causes the Earth to tremble and shake. ______ 3. A hurricane C. It is a very bright flash of electricity that happens in a thunderstorm. It is actually a spark that crosses the gap between two clouds or between a cloud and the Earth. It carries an enormous charge of electricity. Trees are burned, metal can be melted and people can be killed. ______ 4. An earthquake D. It is caused by earthquakes at sea. It forms when energy from an earthquake displace hundreds of cubic kilometers of water from the seabed. Large waves begin moving through the ocean from their epicenters. When it reaches shallow water near coastal areas, it increases in height. The sign comes before it strikes when the waterline suddenly retreats, exposing hundreds of meters of beach and seabed. ______ 5. A volcano E. It is a very violent windstorm. The air is concentrated and whirls up rapidly. It is grey in colour and looks like an elephant’s trunk swaying down from the clouds to touch the ground with its tip. ______ 6. A tsunami F. It is a hill or mountain formed when molten material or lave from the inside of the Earth is forced through the Earth’s crust by gases. It can produce vast clouds of very fine volcanic dust which looks like smoke. ______ 7. A sinkhole G. It is a storm where you hear thunder and see lightning. There is usually heavy rain. It is an electric storm. ______ 8. Lightning H. It is the most violent storm known on Earth. It is a tropical storm. It forms at sea and causes dangerous, stormy seas. It can reach the land and destroy buildings and trees. It can blow high waves onto the land and cause flooding. II. Complete each sentences with the correct word from the box. drought flood hurricane landslide tornado 1. When there is a ___________, a lot of water covers an area where there usually isn’t water. 2. A ___________ refers to a long time without rain. 3. When there is a ______________, a lot of rocks and earth fall down a hill. 4. A____________ is a storm with a lot of wind that moves over water. 5. A____________ is a storm in which the air moves very quickly in a circle. III. Use the verbs in the box in the correct form to complete the sentences. bury evacuate rage take recover scatter provide suffer 1. The government _____________ health and other services to the affected regions. 2. Action were _____________ to limit the effects of the floods in Quang Ninh. 3. The Red Cross helped homeless families to ____________ from the disaster through the project. 4. The majority of concerned areas have ___________ from cholera epidemics after the floods and landslides in Central America. 5. Early September, mudslides caused by heavy rains _____________ an entire village of 480 inhabitants. 6. Thousands of villagers ____________ from flood-prone areas after the warnings from the weather bureau. 7. Tiny particles of dust, smoke, salt or pollution droplets that ___________ through the air to cause haze. 8. The fires ____________ for more than a week in the southern region of Chile, which has been hit by a severe drought. MONG MỌI NGƯỜI GIÚP ĐỠ

0
One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the...
Đọc tiếp

One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.

Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.

1. According to the writer, one environmental problem in the world today is ________ .

A. acid rain B. industrial pollution.

C. safe water shortage. D. population explosion .

2. Many sources of water are not drinkable because of _______ .

A. acid rain. B. industrial pollution.

C. garbage D. all A, B, C, are correct

3. What is serious problem of Lake Baikal in Russia?

A. It contains a rich variety of animals and plants.

B. It is polluted by massive volumes of industrial wastes discharged into it .

C. It has 1,300 rare species that do not exist anywhere else in the world .

D. The government did not have the power to enforce laws and regulations.

4. How many countries throw industrial waste into the Mediterranean Sea regularly?

A. nearly 16 B. exactly 16.

C. exactly 15 D. less than 15.

5. What is the message to the reader?

A. We should take action to protect our water resources.

B. We should take all water resources into account.

C. We should limit the use of water resources.

D. We should encourage people to use safe water.

1
14 tháng 4 2017

One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.

Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.

1. According to the writer, one environmental problem in the world today is ________ .

A. acid rain B. industrial pollution.

C. safe water shortage. D. population explosion .

2. Many sources of water are not drinkable because of _______ .

A. acid rain. B. industrial pollution.

C. garbage D. all A, B, C, are correct

3. What is serious problem of Lake Baikal in Russia?

A. It contains a rich variety of animals and plants.

B. It is polluted by massive volumes of industrial wastes discharged into it .

C. It has 1,300 rare species that do not exist anywhere else in the world .

D. The government did not have the power to enforce laws and regulations.

4. How many countries throw industrial waste into the Mediterranean Sea regularly?

A. nearly 16 B. exactly 16.

C. exactly 15 D. less than 15.

5. What is the message to the reader?

A. We should take action to protect our water resources.

B. We should take all water resources into account.

C. We should limit the use of water resources.

D. We should encourage people to use safe water.

Chúc bạn học tốt haha

15 tháng 4 2017

Thanks :3

6 tháng 11 2017

I ,Find in each numbered space with one appropriate word.

One of the(1).most.. beautiful part of Britain is the Lake District.The Lake District is situated in the north-west of England. (2).....It.... consists of high hills, mountains and, (3) ...of.... course,lakes .There are sixteen (4) ....lakes.... in all.Thhe largest one (5)....is.... Lake Windermere .

Every year more than fourteen million people (6) .....from..... Britain and abroad visit the Lake District.They (7) .....come..... there to enjoy the fresh air and the scenery . Some go to walk in the mountains. (8) .....Others..... sail boats ont the lakes or simply sit admiring the magnificent views.Unfortunately , the region is becoming the victim of its own success in attracting (9) .....visitors.... .

There are also (10)......many..... people coming to the Lake District . They threaten to destroy the peace and quiet which many are searching for there.

6 tháng 11 2017

I 61. most 62. It 63. of 64. lakes 65. is 66. from 67. go 68. Others 69. visitors 70. many

Cái này ms đúng nha haha
10 tháng 3 2020

1, Is Alaska an island in the Pacific Ocean?

=> No, it isn't

2. Where do floatplanes take off and land?

=> Floatplanes take off and land on the water of this airport

III. You are going to read an article about a national vote for people’s favourite tree. Six sentences have been removed from the article. Choose from the sentences A-G the one which fits each gap (16). There is one extra sentence which you do not need to use. TREE OF THE YEAR The aim of the national Tree of the Year competition is to promote and celebrate the most interesting trees around the country. Images and descriptions of a shortlist of 28 trees are put online and the public are asked...
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III. You are going to read an article about a national vote for people’s favourite tree. Six sentences have been removed from the article. Choose from the sentences A-G the one which fits each gap (16). There is one extra sentence which you do not need to use.

TREE OF THE YEAR

The aim of the national Tree of the Year competition is to promote and celebrate the most interesting trees around the country. Images and descriptions of a shortlist of 28 trees are put online and the public are asked to vote for their favourite.

The four trees that gain the most votes before 5 p.m. on 5th October will be given a grant of £1,000. In addition, all trees that receive 1,000 or more votes will get a grant of £500. The grants may be spent on a tree health check or advice from a tree expert, or an educational event, for example. (82) ………………. Among the 28 shortlisted trees there are a wide range of tree species, each with its own unique, fascinating story. For example, the ‘Ding Dong’ tree is a copper beech tree growing in a primary school playground. It was named the ‘Ding Dong’ tree because of a game pupils invented in which they race to touch its trunk, shouting ‘Ding Dong!’ The protective space underneath the 50-year-old tree is used as a magical outdoor classroom, while the indoor classroom displays pictures of the tree through each season of the year. (83) ……………….

Many of the other trees in the competition are remarkable for their age alone. The Craigends Yew, for example, is thought to be up to 700 years old, making it one of the oldest in Scotland. It is an amazing sight as many of its branches have layered. (84) ………………. As a result of these extra growths, the total size when measured around the tree’s crown (the main body of its leaves and branches) is a massive 100 metres.

Another very old tree, the Holm Oak in Kilbroney Park, Northern Ireland, is much loved by local people. It measures 3.6 metres around the trunk, and its beautiful bark looks like the skin of a snake. (85) ………………. The advantage of this lack of uprightness is that young children can climb safely and easily on it. Kilbroney Park is home to many remarkable trees, but this tree was chosen as the favourite by community members.

A 500-year-old veteran oak tree stands in the ancient woodland pasture at Carngafallt in Wales. One of the interesting things about this twisted, hollow tree is that it has several ‘air trees’ growing out of it. An ‘air tree’ is one growing without its roots touching the ground. (86) ………………. It extends its roots down inside the oak’s hollow trunk.

The original Bramley apple tree in Nottinghamshire is younger than many in this competition, but is the famous parent of all modern Bramley apple trees. (87) ………………. Many years later, Matthew Bramley, the new owner of the tree, was carrying some of his fruit when he met a gardener called Henry Merryweather. Henry asked if he could take some cuttings from Matthew's trees to grow his own trees. Mr Bramley agreed, provided they were named ‘Bramley's Seedling’.


A. This means that they are touching the ground and have taken root.

B. These roots have become enormous with age and have now emerged above the ground. Children love to jump over them like horses in a race.

C. But the most distinctive thing about this tree is that its main trunk is leaning towards the ground at an angle of 45 degrees. D. The best example of this on the big old tree is another species of tree called a rowan.

E. Alternatively, they could be used to hold a community event in honour of the tree. F. It was planted from a seed in 1809 by a woman called Ann Brailsford.

G. Children hang bird feeders from its branches and it is used as the focus of many of the educational activities going on around it.

0
Alfred Wainwright came from a relatively poor family but managed to (0) ......... qualifications in accountancy. However it is not for his skill in accountancy that he is (1) ......... but for his pictorial guidebooks to the English Lake District. The Lake District is in the north-west of England and (2) ......... an area of some 2,292 square kilometres. As its name (3) ......... , it is an area of lakes and mountains. Alfred first went there on a walking holiday in 1930 and immediately fell in...
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Alfred Wainwright came from a relatively poor family but managed to (0) ......... qualifications in accountancy. However it is not for his skill in accountancy that he is (1) ......... but for his pictorial guidebooks to the English Lake District. The Lake District is in the north-west of England and (2) ......... an area of some 2,292 square kilometres. As its name (3) ......... , it is an area of lakes and mountains. Alfred first went there on a walking holiday in 1930 and immediately fell in love with the area. He (4) ......... the Lake District into seven parts and wrote a guide for each of them. The guides (5) ......... entirely of copies of his hand-written manuscripts. All have descriptions of walks with hand-drawn maps and sketches of views from the summits of the different mountains. He intended the books to be just for his own personal (6) ......... but was eventually (7) ......... to publish them. They are beautiful books which (8) ......... as popular as ever.

1 A reminded B recollected C referred D remembered

2 A reaches B extends C ranges D covers

3 A implies B represents C proves D means

4 A distributed B assigned C divided D allocated

5 A involve B consist C include D contain

6 A application B use C employment D practice

7 A persuaded B impressed C caused D influenced

8 A stay B keep C continue D remain

0
Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels. It has been suggested that water pollution is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. An estimated 580 people in India die of water pollution related illness every day. About 90 percent of the water in the cities of China is polluted. As of 2007, half a billion Chinese had no access to...
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Water pollution is a major global problem which requires ongoing evaluation and
revision of water resource policy at all levels. It has been suggested that water
pollution is the leading worldwide cause of deaths and diseases, and that it accounts
for the deaths of more than 14,000 people daily. An estimated 580 people in India
die of water pollution related illness every day. About 90 percent of the water in the
cities of China is polluted. As of 2007, half a billion Chinese had no access to safe
drinking water. In addition to the acute problems of water pollution in developing
countries, developed countries also continue to struggle with pollution problems. For
example, in the most recent national report on water quality in the United States, 44
percent of assessed stream miles, 64 percent of assessed lake acres, and 30
percent of assessed bays and estuarine square miles were classified as polluted.
The head of China’s national development agency said in 2007 that one quarter the
length of China’s seven main rivers were so poisoned the water harmed the skin.
Water is typically referred to as polluted when it is impaired by anthropogenic
contaminants and either does not support a human use, such as drinking water, or
undergoes a marked shift in its ability to support its constituent biotic communities,
such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and

earthquakes also cause major changes in water quality and the ecological status of
water.
1. What is the leading worldwide cause of deaths and diseases?
2. How many people die every day by water pollution?
3. How many percent of the water in the cities of China is polluted?
5. What phenomena cause major changes in water quality and the ecological status
of water?

1
24 tháng 2 2020

Water pollution is a major global problem which requires ongoing evaluation and
revision of water resource policy at all levels. It has been suggested that water
pollution is the leading worldwide cause of deaths and diseases, and that it accounts
for the deaths of more than 14,000 people daily. An estimated 580 people in India
die of water pollution related illness every day. About 90 percent of the water in the
cities of China is polluted. As of 2007, half a billion Chinese had no access to safe
drinking water. In addition to the acute problems of water pollution in developing
countries, developed countries also continue to struggle with pollution problems. For
example, in the most recent national report on water quality in the United States, 44
percent of assessed stream miles, 64 percent of assessed lake acres, and 30
percent of assessed bays and estuarine square miles were classified as polluted.
The head of China’s national development agency said in 2007 that one quarter the
length of China’s seven main rivers were so poisoned the water harmed the skin.
Water is typically referred to as polluted when it is impaired by anthropogenic
contaminants and either does not support a human use, such as drinking water, or
undergoes a marked shift in its ability to support its constituent biotic communities,
such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and

earthquakes also cause major changes in water quality and the ecological status of
water.
1. What is the leading worldwide cause of deaths and diseases?

Water pollution is the leading worldwide cause of deaths and diseases.
2. How many people die every day by water pollution?

More than 14,000 people die every day by water pollution.
3. How many percent of the water in the cities of China is polluted?

25% of the water in the cities of China is polluted.
5. What phenomena cause major changes in water quality and the ecological status
of water?

Volcanoes, algae blooms, storms, and earthquakes.

Ex1: Complete the passage with the suitable words from the box Các từ đã cho: reveal,ordinary,pyramid,scientific,wonders,its,tobm,found The Great Pyramid of Giza was built as a..............of Pharaoh Cheops in 2720BC.Althought it was built a long time ago,........Construction makes it one of the true........... of the world.The four sides of the..............are put almost exactly on true north,south,east and west. Exploration and detailed examinations of the base of the...
Đọc tiếp

Ex1: Complete the passage with the suitable words from the box

Các từ đã cho: reveal,ordinary,pyramid,scientific,wonders,its,tobm,found

The Great Pyramid of Giza was built as a..............of Pharaoh Cheops in 2720BC.Althought it was built a long time ago,........Construction makes it one of the true........... of the world.The four sides of the..............are put almost exactly on true north,south,east and west.

Exploration and detailed examinations of the base of the structure........many interesting lines.Futher.......study indicates that these represent a type of line of event-past,present and future.Many of the events have been interpreted and......to coincide with known facts of the past.

Was this super structure made by...........beings,or one built by a race far superior to any known today?

Ex2:Đọc đoạn văn sau và khoanh tròn trước câu trả lời đúng

Of all the natural wonders of the world,few are as spectacular as Niagara Falls.Located on the Niagara river along the border between the United States and Canada,Niagara actually consists of two falls, the American Falls and the Hoseshoe Falls.The former is on the US sid eof the border,in the state of NewYork,while the latter is on the Canadian side.Aboot 85% of the water in Niagara River flows over the Houseshoe,which is the more impressive of the two falls.

About 10 milion people visit the falls each year,most during the summer tourist season.Sightseer can ride steamers up close to the boiling water of the falls, or view them from the both sides of the river.Niagara Falls has long been a popular honeymoon destination for newlywed.

1:In line 10, the word"them"refers to.............

A:steamers B:sightseers C:parks D:waterfalls

1
3 tháng 4 2017

Ex1: Complete the passage with the suitable words from the box

Các từ đã cho: reveal,ordinary,pyramid,scientific,wonders,its,tobm,found

The Great Pyramid of Giza was built as a........tobm......of Pharaoh Cheops in 2720BC.Althought it was built a long time ago,...its.....Construction makes it one of the true......wonders..... of the world.The four sides of the.......pyramid.......are put almost exactly on true north,south,east and west.

Exploration and detailed examinations of the base of the structure....reveal....many interesting lines.Futher...scientific....study indicates that these represent a type of line of event-past,present and future.Many of the events have been interpreted and...found...to coincide with known facts of the past.

Was this super structure made by......ordinary.....beings,or one built by a race far superior to any known today?

Ex2:Đọc đoạn văn sau và khoanh tròn trước câu trả lời đúng

1:In line 10, the word"them"refers to.............

A:steamers B:sightseers C:parks D:waterfalls