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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.

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.

Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

What is the meaning of “waterproof” in the second paragraph?

A. not allowing water to go through

B. covered with water

C. full of water

D. cleaned by water

1
8 tháng 1 2018

Đáp án A

waterproof (adj): không thấm nước
= not allowing water to go through: không cho nước đi qua.
Các đáp án còn lại:
B. bao phủ bởi nước.
C. chứa đầy nước.
D. được làm sạch bằng nước.

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. As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or...
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.

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.

Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

Pollution in water is noticed ______.

A. when the first organisms is affected

B. as soon as the balance of nature is destroyed.

C. when poisons are poured into water

D. when a good many fish and birds die

1
9 tháng 12 2018

Đáp án D

Ô nhiễm chỉ được chú ý tới ______.
A. khi sinh vật đầu tiên bị ảnh hưởng.
B. ngay sau khi sự cân bằng tự nhiên bị phá hủy.
C. khi chất độc bị đổ xuống nguồn nước.
D. khi nhiều loài cá và chim bị chết.
Dẫn chứng câu 3-5 đoạn 1: “Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening” – (Những tác động thường xuyên của ô nhiễm không được chú ý tới trong vài tháng, thậm chí là vài năm bởi sinh vật đầu tiên bị ảnh hưởng chỉ là các loài thực vật hoặc các sinh vật phù du. Nhưng đối với những sinh vật làm thức ăn cho cá, chim hoặc và loài sinh vật khác. Khi chúng biến mất thì cá, chim cũng chết theo như cách mà 1 chuỗi thức ăn bị xóa sổ, và cho đến khi xác chết chim, cá được nhìn thấy trên mặt hồ hoặc bờ biển thì con người mới nhận thức được rằng điều gì đang xảy ra).

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. As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or...
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.

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.

Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

The living things die because there is no ______ in the lake or river.

A. water

B. poison

C. oxygen

D. fish

1
18 tháng 6 2019

Đáp án C

Các sinh vật sống bị chết bởi không có đủ ______ trên các sông hồ.
A. nước
B. độc tố
C. khí ô-xi
D. cá
Dẫn chứng ở câu 2- đoạn 2: “Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need”- (Bản thân nước thải, nếu chúng không được xử lí đúng cách thì sẽ làm cho nước bị bẩn và ngăn mọi dạng sống dưới sông, biển không nhận được đủ lượng ô-xi cần thiết).

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. As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or...
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.

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.

Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

According to the passage, the way to stop water pollution is ______.

A. to make the waste material harmless.

B. to realize the serious situation clearly

C. to make special room in the sea for our rubbish

D. to put oxygen into the river

1
11 tháng 7 2019

Đáp án A

Theo như đoạn văn, cách để ngăn chặn ô nhiễm nguồn nước là ______.
A. làm cho các chất thải trở nên vô hại.
B. nhận thức rõ ràng tầm nghiêm trọng.
C. dành 1 chỗ đặc biệt trên biển cho rác thải.
D. sục khí ô-xi vào các dòng sông.
Dẫn chứng ở câu thức 2 từ dưới lên: “if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water” – ( Nếu chúng ta muốn dừng việc ô nhiễm này lại, câu trả lời rất đơn giản, nước thải và chất thải công nghiệp phải được làm sạch trước khi chảy vào nguồn nước).

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. As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or...
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.

As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.

Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

Which of the following is harmful according to the passage?

A. industrial waste

B. water for cleaning

C. Chemicals

D. All of the above

1
19 tháng 2 2018

Đáp án D

Cái nào sau đây là có hại theo như đoạn văn?
A. chất thải công nghiệp.
B. nước tẩy.
C. các chất hóa học.
D. Tất cả các ý trên.
Dẫn chứng ở 2 câu cuối đoạn 1: “There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas.” – (Có 2 nguồn chính đó là nước thải và chất thải công nghiệp. Khi có càng nhiều chất tẩy rửa được sử dụng trong các hộ gia đình thì cuối cùng nó vẫn sẽ được đổ ra các sông, hồ và biển cả).

* 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 from 24 to 30.   Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.   How did this happen? First, we must think about how...
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 from 24 to 30.

  Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.

  How did this happen? First, we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past, there were woods all around Lake Ponkapog, so the rainwater was clean.

  Now there are many homes on the lake shore. People often use the chemicals in their gardens. They use other chemicals inside their houses for cleaning and killing insects. There are also many businesses. Businesses use chemicals in their machines or stores. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater flows by these homes and businesses. It picks up all the chemicals and then pours them into the lake. They pollute the water and kill the animal life.

  There is still another problem at the lake: exotic plants. These plants come from other countries. They have no natural enemies here, and they grow very quickly. In a short time, they can fill up a lake. Then there is no room for other plants. The plants that normally grow there die. These plants gave many animals and fish their foods or their homes. So now those animals and fish die, too.

  People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground.

(“Reading Power ” by Beatrice S. Mikulecky/Linda Jeffries - Longman)

 In the past, the water in Lake Ponkapog was made clean by____________.

 

 

A. fish

B. rain

C. forests

D. birds

1
13 tháng 3 2018

                                 Câu đề bài: Bài báo này đề cập đến_________ .

Đáp án D: Tại sao nước bị bẩn ở hồ Ponkapog

Các đáp án còn lại:

A.                                những cây ngoại lai ở hồ Ponkapog

B.                                hồ bẩn ở New Jersey

C.  hóa chất trong hồ Ponkapog

Thông tin trong bài:

Bài đọc đề cập đến những nguyên nhân và tình trạng ô nhiễm nước ở hồ Ponkapog, chứ không phải chỉ riêng cây ngoại lai, hồ bẩn nói chung ở New Jersey hay hóa chất trong hồ.

* 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 from 24 to 30.   Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.   How did this happen? First, we must think about how...
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 from 24 to 30.

  Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.

  How did this happen? First, we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past, there were woods all around Lake Ponkapog, so the rainwater was clean.

  Now there are many homes on the lake shore. People often use the chemicals in their gardens. They use other chemicals inside their houses for cleaning and killing insects. There are also many businesses. Businesses use chemicals in their machines or stores. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater flows by these homes and businesses. It picks up all the chemicals and then pours them into the lake. They pollute the water and kill the animal life.

  There is still another problem at the lake: exotic plants. These plants come from other countries. They have no natural enemies here, and they grow very quickly. In a short time, they can fill up a lake. Then there is no room for other plants. The plants that normally grow there die. These plants gave many animals and fish their foods or their homes. So now those animals and fish die, too.

  People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground.

(“Reading Power ” by Beatrice S. Mikulecky/Linda Jeffries - Longman)

This article is about____________.

A. the exotic plants in Lake Ponkapog

B. dirty lakes in New Jersey 

C. chemicals in Lake Ponkapog

D. why the water is dirty in Lake Ponkapog

1
14 tháng 8 2018

Chọn B                                 Câu đề bài: “Tại sao bạn không tham gia thêm các lớp học tiếng Anh nếu như bạn muốn trở thành hướng dẫn viên du lịch? ", bạn tôi hỏi.

A. Bạn tôi khuyên tôi tham gia thêm các lớp học tiếng Anh chỉ nếu như tôi muốn trở thành một hướng dẫn viên du lịch.

B. Bạn tôi đề nghị tôi tham gia thêm các lớp học tiếng Anh nếu như tôi muốn trở thành một hướng dẫn viên du lịch.

—» To suggest (that) somebody do something, cẩu trúc Why don’t you + V hay in somebody's opinion (theo quan điểm của ai) đều có thể dùng để đưa ra lời đề nghị hay lời khuyên.

* 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 from 24 to 30.   Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.   How did this happen? First, we must think about how...
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 from 24 to 30.

  Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.

  How did this happen? First, we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past, there were woods all around Lake Ponkapog, so the rainwater was clean.

  Now there are many homes on the lake shore. People often use the chemicals in their gardens. They use other chemicals inside their houses for cleaning and killing insects. There are also many businesses. Businesses use chemicals in their machines or stores. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater flows by these homes and businesses. It picks up all the chemicals and then pours them into the lake. They pollute the water and kill the animal life.

  There is still another problem at the lake: exotic plants. These plants come from other countries. They have no natural enemies here, and they grow very quickly. In a short time, they can fill up a lake. Then there is no room for other plants. The plants that normally grow there die. These plants gave many animals and fish their foods or their homes. So now those animals and fish die, too.

  People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground.

(“Reading Power ” by Beatrice S. Mikulecky/Linda Jeffries - Longman)

 The phrase “fill up” in the passage probably means__________.

 

 

A. become too crowded

B. grow in tiny quantities 

C. become full of water

D. cover the surface

1
12 tháng 5 2019

B                                 Câu đề bài: Câv ngoai lai lớn rất nhanh bởi vì chúng __________.

Đáp án B: không có kẻ thù tự nhiên

Các đáp án còn lại:

     A. làm bẩn nguồn nước

     C. lớn và khỏe

     D. chứa rất nhiều nước

Thông tin trong bài:

There is still another problem at the lake: exotic plants. These plants come from other countries. They have no natural enemies here, and they grow very quickly.

—» Vẫn còn có một vấn đề khác ở hồ: cây ngoại lai. Những cây này đến từ các nước khác. Chúng không có kẻ thù tự nhiên ở đây, và chúng sinh trưởng rất nhanh.

* 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 from 24 to 30.   Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.   How did this happen? First, we must think about how...
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 from 24 to 30.

  Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.

  How did this happen? First, we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past, there were woods all around Lake Ponkapog, so the rainwater was clean.

  Now there are many homes on the lake shore. People often use the chemicals in their gardens. They use other chemicals inside their houses for cleaning and killing insects. There are also many businesses. Businesses use chemicals in their machines or stores. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater flows by these homes and businesses. It picks up all the chemicals and then pours them into the lake. They pollute the water and kill the animal life.

  There is still another problem at the lake: exotic plants. These plants come from other countries. They have no natural enemies here, and they grow very quickly. In a short time, they can fill up a lake. Then there is no room for other plants. The plants that normally grow there die. These plants gave many animals and fish their foods or their homes. So now those animals and fish die, too.

  People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground.

(“Reading Power ” by Beatrice S. Mikulecky/Linda Jeffries - Longman)

 To save Lake Ponkapog, people need to       ___________.

 

 

A. use more water from the lake

B. be more careful about chemicals 

C. grow fewer plants in the gardens

D. use more boats on the lake

1
22 tháng 10 2019

                               Câu đề bài: Cụm từ "Lấp đầy" trong đoạn văn có lẽ nghĩa là ________.

Đáp án D: bao phủ bề mặt

Các đáp án còn lại:

     A. trở nên đông đúc

     B. phát triển với số lượng rất nhỏ

     C. trở nên đầy nước

Thông tin trong bài:

They have no natural enemies here, and they grow very quickly. In a short time. thev can fill up a lake. Then there is no room for other plants.

—» Chúng không có kẻ thù tự nhiên ở đây, và chúng sinh trưởng rất nhanh. Trong một khoảng thời gian ngắn, chúng có thể lấp đầy một hồ nước. Khi đó sẽ không có chỗ cho các loại cây khác nữa.

—» To fill up = to cover the surface.

* 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 from 24 to 30.   Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.   How did this happen? First, we must think about how...
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 from 24 to 30.

  Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals, and fish. The lake water is polluted. It is a dirty brown colour, and it is filled with strange plants.

  How did this happen? First, we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past, there were woods all around Lake Ponkapog, so the rainwater was clean.

  Now there are many homes on the lake shore. People often use the chemicals in their gardens. They use other chemicals inside their houses for cleaning and killing insects. There are also many businesses. Businesses use chemicals in their machines or stores. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater flows by these homes and businesses. It picks up all the chemicals and then pours them into the lake. They pollute the water and kill the animal life.

  There is still another problem at the lake: exotic plants. These plants come from other countries. They have no natural enemies here, and they grow very quickly. In a short time, they can fill up a lake. Then there is no room for other plants. The plants that normally grow there die. These plants gave many animals and fish their foods or their homes. So now those animals and fish die, too.

  People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground.

(“Reading Power ” by Beatrice S. Mikulecky/Linda Jeffries - Longman)

 Exotic plants grow quickly because they___________.

 

 

A. make the water dirty

B. have no natural enemies 

C. are large and strong

D. have a lot of water

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29 tháng 9 2018

                                 Câu đề bài: Từ nổi bật "Chúng ” trong đoạn 3 đề cập đến ___________ .

Đáp án B: hóa chất

Các đáp án còn lại:

     A. những ngôi nhà

     C. xe hơi hoặc xe tải

     D. doanh nghiệp

Thông tin trong bài:

When it rains, the rainwater flows by these homes and businesses. It picks up all the chemicals and then pours them into the lake. They pollute the water and kill the animal life.

—» Khi trời mưa, nước mưa chảy qua những hộ gia đình và doanh nghiệp này. Nó cuốn đi tất cả những hóa chất và rồi đổ hết vào hồ. Chúng làm ô nhiễm nguồn nước và hủy diệt đời sống động vật.

—» They = the chemicals.