Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystem...

1

DH

Dương Hoàn Anh

2 tháng 8 2017

Đáp án B

Giải thích: A: đồi

B: rừng

C: suối

D: cánh rừng

Dịch: Sam bằng đất ngập nước và chặt phá rừng phá hủy hệ sinh thái.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes harm ecosystems. If there is too (1)____ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fire for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets...

LQ

Lê Quỳnh Anh

10 tháng 9 2019

1

DH

Dương Hoàn Anh

10 tháng 9 2019

Đáp án B

Giải thích: Without +Ving: ngoài việc…

Dịch: Họ đang tìm cách lấy thức ăn, gỗ và các sản phẩm khác cho con người mà không câu hại cho môi trường.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes harm ecosystems. If there is too (1)____ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fire for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets...

LQ

Lê Quỳnh Anh

16 tháng 11 2018

1

DH

Dương Hoàn Anh

16 tháng 11 2018

Đáp án A

Giải thích: A little + Danh từ không đếm được: 1 ít, một vài

A few + Danh từ đếm được : 1 ít, 1 vài

Little/ few= just a little/ just a few: rất ít, hầu như không có

“rainfall” (lượng mưa) là danh từ không đếm được

Dịch: Nếu quá ít mưa thì cây cối sẽ không có đủ nước để sống

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes harm ecosystems. If there is too (1)____ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fire for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets...

LQ

Lê Quỳnh Anh

7 tháng 1 2017

1

DH

Dương Hoàn Anh

7 tháng 1 2017

Đáp án A

Giải thích: Let smt out: đưa cái gì ra ngoài

Dịch: hơi nóng từ đám cháy rừng làm tan chảy nón thông và đưa hạt ra ngoài

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.Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.The explosion in mobile phone use around the world...

LQ

Lê Quỳnh Anh

22 tháng 9 2018

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.

Millions of people are using cell phones today. In many places, it is actually considered unusual not to use one. In many countries, cell phones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a travelling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree. What is it that makes mobile phones potentially harmful? The answer is radiation. High- tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often

The changes possibly caused by the cell phones are mainly concerned with

A. the mobility of the mind and the body.

B. the arteries of the brain.

C. the smallest units of the brain.

D. the resident memory.

1

DH

Dương Hoàn Anh

22 tháng 9 2018

Đáp án C

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.Land that is covered with trees,...

LQ

Lê Quỳnh Anh

20 tháng 6 2017

1

DH

Dương Hoàn Anh

20 tháng 6 2017

Đáp án C

Giải thích: Tính từ little chỉ sự khan hiếm hoặc thiếu và gần như mang nghĩa phủ định được dùng trước danh từ không đếm được (trong câu này là soil: đất trồng). Ta có thể dùng trạng từ chỉ mức độ so/ very để bổ nghĩa cho tính từ little.

“Land that is covered with trees, grass and other plants wears away very slowly, and so loses very little of its soil.” – Đất được bao phủ bởi cây cối, cỏ và các loại thực vật khác bị trôi đi rất chậm, và như thế mất rất ít đất trồng.

Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.Land that is covered with trees,...

LQ

Lê Quỳnh Anh

13 tháng 5 2017