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3 tháng 7 2019

the human race is only one small species in the living world. many other soecies (1)exist on this planet. however, human beings have a great influence on the (2) rest od the world. they are changing the environment by building cities and villaghes (3)where forests once stood. they are changing weather(4)conditions by citting down trees in the forests. and they are destroying the air by adding(5)pollutants to it.

it can be said that human beings are changing the environment in all(6)respects in two serious consequences. the first is that many kinds of rare animals are killed. the second is that the environment where these animals are living is (7)badly destroyed. as a result, the number of rare animals is(8)decreasing so rapidly that they are in danger of(9)extinction

Read the text and choose the best options : Australia is the only country that fills an entire continent. It is the smallest continent in the world but the sixth largest country. Australia, called the island continent, is totallt surrounded by water. The island continent is, in large part, a very dry, flat land. Yet it supports a magnificent anf unusual collection of wildlife. Australia is a land of oddities. There are many unusual animals and plants that cannot be found anywhere ellse in the...
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Read the text and choose the best options :

Australia is the only country that fills an entire continent. It is the smallest continent in the world but the sixth largest country. Australia, called the island continent, is totallt surrounded by water. The island continent is, in large part, a very dry, flat land. Yet it supports a magnificent anf unusual collection of wildlife. Australia is a land of oddities. There are many unusual animals and plants that cannot be found anywhere ellse in the world. Because the island continent was separated from the rest of the world for many years, these animals developed in different ways. Many of the animals in Australia are marsupials. Marsupials are animals such as koalas and wombats.The kangaroo is perhaps the best known of the marsupials. Besides the marsupial, the strange animals of the continent include emu and the duckbill platypus. There are many physical feature of Australia that also are unique, including the central part of the country known as "Outback" , which consists off three main deserts. More than half of all Australians live in large, morden cities along the coast. There are so many people living in the small towns on the edge of the Outback, where there is plenty of grassfor raising sheep and cattle. Autralia rates first in the world for sheep raising. In fact, there are more than 10 times as many sheep in Australia as there are people!

1. The text mainly discusses.........

A. The geography B. The wildlife of Australia C. The economy of Australia D. A and B are correct

2. Which of the following is true according to the text?

A. Australia is surrounded by two large bodies of water

B. Australia has unique and strange collection of wildlife

C.Australia don't have any deserts

D. Australia is a large continent

3. Which animal is NOT mentioned in the text?

A. Koala B. Camel C. Sheep D. Platypus

4. The majority of Australians live in/on............

A. The small towns B. The desert C. Farms D. Big cities

2
7 tháng 5 2018

Read the text and choose the best options :

Australia is the only country that fills an entire continent. It is the smallest continent in the world but the sixth largest country. Australia, called the island continent, is totallt surrounded by water. The island continent is, in large part, a very dry, flat land. Yet it supports a magnificent anf unusual collection of wildlife. Australia is a land of oddities. There are many unusual animals and plants that cannot be found anywhere ellse in the world. Because the island continent was separated from the rest of the world for many years, these animals developed in different ways. Many of the animals in Australia are marsupials. Marsupials are animals such as koalas and wombats.The kangaroo is perhaps the best known of the marsupials. Besides the marsupial, the strange animals of the continent include emu and the duckbill platypus. There are many physical feature of Australia that also are unique, including the central part of the country known as "Outback" , which consists off three main deserts. More than half of all Australians live in large, morden cities along the coast. There are so many people living in the small towns on the edge of the Outback, where there is plenty of grassfor raising sheep and cattle. Autralia rates first in the world for sheep raising. In fact, there are more than 10 times as many sheep in Australia as there are people!

1. The text mainly discusses.........

A. The geography B. The wildlife of Australia C. The economy of Australia D. A and B are correct

2. Which of the following is true according to the text?

A. Australia is surrounded by two large bodies of water

B. Australia has unique and strange collection of wildlife

C.Australia don't have any deserts

D. Australia is a large continent

3. Which animal is NOT mentioned in the text?

A. Koala B. Camel C. Sheep D. Platypus

4. The majority of Australians live in/on............

A. The small towns B. The desert C. Farms D. Big cities

12 tháng 8 2019

1. The text mainly discusses.........

A. The geography B. The wildlife of Australia C. The economy of Australia D. A and B are correct

2. Which of the following is true according to the text?

A. Australia is surrounded by two large bodies of water

B. Australia has unique and strange collection of wildlife

C.Australia don't have any deserts

D. Australia is a large continent

3. Which animal is NOT mentioned in the text?

A. Koala B. Camel C. Sheep D. Platypus

4. The majority of Australians live in/on............

A. The small towns B. The desert C. Farms D. Big cities

IV.Read the passage. Decide which of the following statements is True(T), Palse(F) or No information(NI) We are all destroying the Earth. The seas and rivers are too dirty to swim in it. These is so much smoke in the air that it's unhealthy to live in many of world's cities. We've cut down so many trees that there are now areas of wasteland all over the world. Farmers in many parts of Africa can not got grow enough to eat and in some Asian countries there is too little rice....
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IV.Read the passage. Decide which of the following statements is True(T), Palse(F) or No information(NI)

We are all destroying the Earth. The seas and rivers are too dirty to swim in it. These is so much smoke in the air that it's unhealthy to live in many of world's cities. We've cut down so many trees that there are now areas of wasteland all over the world. Farmers in many parts of Africa can not got grow enough to eat and in some Asian countries there is too little rice. Wild animals are quickly disappearing because we have killed too many. However, it isn't enough simply to talk about the problem. We must act before it's too late to do anything about it. Join us now. Save the Earth. This is too important to ignore

1._____ We can swim in the seas and rivers because they are not polluted now.

2._____ We are planting a lot of trees in areas of wasteland.

3._____ There isn’t rice enough to eat in many parts of Africa.

4._____ We are killing too many wild animals.

5._____ It’s not important to save the Earth.

6._____ It's pleasant to live in a lot of cities in the world now

7._____There are areas of wasteland now because many trees are cut down

8._____Rice can grow enough in many parts of Africa

9._____Animals are not as many now as they were a few years ago

10.____It's time to act if we want to save the Earth

1
13 tháng 11 2017

IV.Read the passage. Decide which of the following statements is True(T), Palse(F) or No information(NI)

We are all destroying the Earth. The seas and rivers are too dirty to swim in it. These is so much smoke in the air that it's unhealthy to live in many of world's cities. We've cut down so many trees that there are now areas of wasteland all over the world. Farmers in many parts of Africa can not got grow enough to eat and in some Asian countries there is too little rice. Wild animals are quickly disappearing because we have killed too many. However, it isn't enough simply to talk about the problem. We must act before it's too late to do anything about it. Join us now. Save the Earth. This is too important to ignore

1.__F___ We can swim in the seas and rivers because they are not polluted now.

2.___F__ We are planting a lot of trees in areas of wasteland.

3.__T___ There isn’t rice enough to eat in many parts of Africa.

4.___T__ We are killing too many wild animals.

5.__F___ It’s not important to save the Earth.

6.___F__ It's pleasant to live in a lot of cities in the world now

7.___T__There are areas of wasteland now because many trees are cut down

8.__F___Rice can grow enough in many parts of Africa

9.___T__Animals are not as many now as they were a few years ago

10.__T__It's time to act if we want to save the Earth

13 tháng 11 2017

thanks ạyeu

Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who...
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Since the world has become ............ (industry),there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tiger, for instance, which once roamed the jungles in vast number, now only about 2,300 and by the year 2025, their population is ............ (estimate)to be down to zero. What is alarming about the case of the Bengal tiger is that this ............ (extinct) will have been caused almost entirely by poachers who according to some sources, are not interested in material gain but in ...........(p gratification. This is an example of the callousness that is part of what is causing the problem of extinction. Animals like Bengal tigers as well as other endangered species are a valuable part of the world's ecosystem. .................(nation) laws protecting these animals must be enacted to ensure their .......(survive) and the survival of our planet.
Countries around the world have begun to deal with the problem in ..........(vary) ways. Some countries, in order to circumvent the problem, have allocated large amounts of land to animal reserves. They then charge admission to help defray the costs of maintaining the parks and they often must also depend on world organizations for support. With the money they get, they can invest in equipment, and patrols to protect the animals. Another solution that is an attempt to stem the tide of animal extinction is an international boycott of products made from endangered species. This seems fairly effective but it will not, by itself, prevent animals from being hunted and killed.

5
3 tháng 1 2020

chỗ trống 4 : person

3 tháng 1 2020

ai giúp với xíu đi học r

Đọc đoạn văn, kế đến điền (T) hay (F) We are all destroying the Earth. The seas and rivers are too dirty to swim in. There is so much smoke in the air that it is unhealthy to live in many of world’s cities. We have cut down so many trees that there are now vast areas of wasteland all over the world. As a result, farmers in parts of Africa can not grow enough to eat. In certain countries in Asia there is too little rice. Wild animals are quickly disappearing. For instance,...
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Đọc đoạn văn, kế đến điền (T) hay (F)

We are all destroying the Earth. The seas and rivers are too dirty to swim in. There is so much smoke in the air that it is unhealthy to live in many of world’s cities. We have cut down so many trees that there are now vast areas of wasteland all over the world. As a result, farmers in parts of Africa can not grow enough to eat. In certain countries in Asia there is too little rice. Wild animals are quickly disappearing. For instance, tigers are rare in India now because we have killed too many. However, it isn’t enough simply to talk about the problem. We must act now before it is too late to do anything about it. Join us now. Save the Earth. This is too important to ignore.

- wasteland: đất khô cằn; hoang mạc

- rare: hiếm, rất ít

- ignore: lờ đi

  1. The seas and rivers are polluted now.
  2. Smoke is harmful to human health.
  3. We have planted many trees recently.
  4. Wild animals are threstened with extinction.
  5. There are only a small number of tigers left in India.
  6. Save the Earth is an unimportant problem.
2
31 tháng 12 2017

Đọc đoạn văn, kế đến điền (T) hay (F)

We are all destroying the Earth. The seas and rivers are too dirty to swim in. There is so much smoke in the air that it is unhealthy to live in many of world’s cities. We have cut down so many trees that there are now vast areas of wasteland all over the world. As a result, farmers in parts of Africa can not grow enough to eat. In certain countries in Asia there is too little rice. Wild animals are quickly disappearing. For instance, tigers are rare in India now because we have killed too many. However, it isn’t enough simply to talk about the problem. We must act now before it is too late to do anything about it. Join us now. Save the Earth. This is too important to ignore.

- wasteland: đất khô cằn; hoang mạc

- rare: hiếm, rất ít

- ignore: lờ đi

  1. The seas and rivers are polluted now. T
  2. Smoke is harmful to human health. T
  3. We have planted many trees recently. F
  4. Wild animals are threstened with extinction. T
  5. There are only a small number of tigers left in India. T
  6. Save the Earth is an unimportant problem. F
31 tháng 12 2017

Đọc đoạn văn, kế đến điền (T) hay (F)

We are all destroying the Earth. The seas and rivers are too dirty to swim in. There is so much smoke in the air that it is unhealthy to live in many of world’s cities. We have cut down so many trees that there are now vast areas of wasteland all over the world. As a result, farmers in parts of Africa can not grow enough to eat. In certain countries in Asia there is too little rice. Wild animals are quickly disappearing. For instance, tigers are rare in India now because we have killed too many. However, it isn’t enough simply to talk about the problem. We must act now before it is too late to do anything about it. Join us now. Save the Earth. This is too important to ignore.

- wasteland: đất khô cằn; hoang mạc

- rare: hiếm, rất ít

- ignore: lờ đi

  1. The seas and rivers are polluted now. T
  2. Smoke is harmful to human health. T
  3. We have planted many trees recently. F
  4. Wild animals are threstened with extinction. T
  5. There are only a small number of tigers left in India. T
  6. Save the Earth is an unimportant problem. F
VII. Choose the item among A, B, C or D that best answers the question about the passage. Living in the country is something that people from the city often dream about. However, in reality, it has both advantages and disadvantages. There are certainly many advantages to living in the country. First, you can enjoy peace and quietness. Moreover, people tend to be friendlier. A further advantage is that there is less traffic, so it is safer for young children. However, there are certain...
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VII. Choose the item among A, B, C or D that best answers the question about the passage. Living in the country is something that people from the city often dream about. However, in reality, it has both advantages and disadvantages. There are certainly many advantages to living in the country. First, you can enjoy peace and quietness. Moreover, people tend to be friendlier. A further advantage is that there is less traffic, so it is safer for young children. However, there are certain disadvantages or drawbacks to life outside the city. First, because there are fewer people, you are likely to have few friends. In addition, entertainment is difficult to find, particularly in the evening. Furthermore, the fact that there are fewer shops and services means that it is hard to find jobs. In short, it can be seen that the country is more suitable for some people than others. On the whole, it is often the best for those who are retired or who have young children. In contrast, young people who have a career are better provided in the city. 1. According to the passage, living in the country has _______. A. only good points B. only bad points C. both good and bad points D. no disadvantages 2. How many advantages does living in the country have? A. Two B. Three C. Four D. No 3. Living in the country is safer for young children because _______. A. there is less traffic B. there are few shops C. there are fewer people D. there are few services 4. Which of the following statements is NOT true according to the passage? A. People in the country tend to be friendlier than people in the city. B. It’s hard to find entertainment in the country. C. There are fewer shops and services in the country. D. The country is only suitable for retired people. 5. Having few friends is _______. A. one of drawbacks to life in the country B. the only disadvantage to living in the country C. one of certain drawbacks to life outside the city D. one of certain advantages to life outside the city
2
6 tháng 8 2022

1. A

2.A

3.B

4.A

5.D

6 tháng 8 2022

1.C

2.B

3.A

4.D

5.C

Xin lỗi bạn. Câu trả lời của mình bên dưới mik nghĩ là sai . Mik viết lại ra đây nhé

X. Read the passage carefully and do the tasks. There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by nature, such as foods, forest fires, and volcanoes. People are the major Cause of pollution. We pollute the air with our cars, homes, and factories. Smoke from factories and car exhaust makes the air looks gray and smoggy. Some people cannot go outside when the air is very bad! We pollute the water by dumping garbage and Chemicals in the water....
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X. Read the passage carefully and do the tasks.
There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by
nature, such as foods, forest fires, and volcanoes. People are the major Cause of pollution. We pollute the
air with our cars, homes, and factories. Smoke from factories and car exhaust makes the air looks gray and
smoggy. Some people cannot go outside when the air is very bad! We pollute the water by dumping
garbage and Chemicals in the water. Plants and animals die because of the pollution in the water. We
pollute the soil with Chemicals and garbage. We harm the land by cutting down trees in the forest,
especially to build roads and new houses without careful planning and thinking.
The only way to save our environment is to think about pollution. How can you stop or limit pollution?
How do we protect our environment? Conservation is one way to protect our environment. Conservation is
the wise use and protection of our environment. We can control water pollution by not producing as much
as waste and by proper disposal of sewage and garbage. We can take care of recreation land by cleaning up,
after ourselves and not causing more pollution. Carpooling and public transportation will help reduce air
pollution.
Recycling is a type of conservation. Recycling is reusing items over again or in a new way. Recycling can
help us conserve our natural resources so they will last many more years. A. Find the word in bold in the
passage that means:
1. the protection of the natural environment ____
2. have a bad effect on something ____
3. a large amount of water covering an, area that usually dry ____
4. sharing a car ride with other people ____
5. waste gases that come out of an engine ____
6. the process of making air, water, soil, etc. dirty ____
7. get rid of ____
B. Choose the correct answers.
1. According to the passage, pollution________
A. is always caused by humans. B. can only be caused by nature.
C. is mainly caused by humans. D. may sometimes cause natural disasters.
2. What kind of pollution may a car cause?
A. Air pollution B. Water pollution C. Soil pollution D. Light pollution
3. Which of the followings is not an example of soil pollution?
A. Land development B. Waste disposal
C. Pesticide or fertilizer use D. Exhaust from traffic
4. How can we help save our environment?
A. Stop pollution. B. Dump garbage into the river.
C. Drive cars everywhere. D. Cut down trees in the forests.
5. How does recycling help the environment?
A. It expands landfills. B. It saves natural resources.
C. It increases water pollution. D. It causes air pollution.

6. What can we do to help reduce air pollution?
A. Walk or bike B. Carpool to work or school
C. Use public transport D. All of the above
7. What is the main idea of this article?
A.The air is dirty because of cars and factories. B. The soil gets polluted from littering.
C.People cause pollution, but they can also stop or limit it.
D. Conservation is the only way to stop environmental pollution.

1
7 tháng 3 2021

1-c;2-a;3-d;4-a;5-b;6-d;7-c

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...
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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.

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

Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants. If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions...
Đọc tiếp

Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants.

If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions if it were not for the many fossils of sea animals that we find there.

You can look at some fossils and see for yourself the shape of the ancient animals. Even if you collect only bits of one kind of fossil, you may still be able to tell what it looked like. Making sense out of fossil bits is a little like working a jigsaw puzzle. Sometimes you will lose pieces, but you can still recognize the picture and even use your imagination to fill in missing details. The habits of ancient sea animals are not so easy to determine. Therefore, scientists study the structure and the habits of similar living animals to learn what the ancient ones must have been like. There are some things, however, that neither the study of fossils nor the study of living animals can tell us. For example, no one knows what colour most ancient sea animals were. Also, since the soft parts disappeared soon after death, many details of their internal structure are unknown. So the pictures of ancient sea creatures (as well as dinosaurs!) are what scientists think the animals looked like. Reconstructing the life of an ancient sea animal on the basis of fossil evidence and the characteristics of similar living animals is a little like relying on circumstantial evidence in court.

1. This passage is mainly about animals that __________.

A. have very tough hides

B. once lived on the earth

C. inhabit the seas of today

D. are becoming extinct

2. With the help of fossils we can __________.

A. reconstruct life of the past

B. predict the future

C. explain the changes of the seasons

D. save some species of animals from extinction

3. Many details of ancient animals are lacking because __________.

A. many species have not been found

B. volcanic disasters have permanently buried many fossils

C.many fossils lie in deep water and cannot be recovered

D. soon after death the soft parts of the body decay

49. To “determine" in the passage is closest in meaning to __________.

A. come across

B. study

C. find out

D. imitate

50. This passage implies that a scientist's evaluation of the past is based on __________.

A. laboratory experiments with live animals

B. a few facts mixed with a lot of opinions

C. predictions made in the past and present

D. field studies of our society

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4 tháng 7 2019

1 B. once lived on the earth

2 A. reconstruct life of the past

3 D. soon after death the soft parts of the body decay

4 C. find out

5 B. a few facts mixed with a lot of opinions