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Chúng ta sống trong một thế giới năng động, và môi trường sống luôn luôn trải qua những thay đổi ở tất cả các cấp độ. Tuy nhiên, những thay đổi tự nhiên thường xảy ra ở tốc độ chậm để tác động đến từng loài có xu hướng nhỏ - ít nhất là trong ngắn hạn
Khi tốc độ thay đổi được tăng tốc đáng kể, có thể không có thời gian để các loài cá thể phản ứng với hoàn cảnh mới, và các hiệu ứng có thể là thảm họa. Tóm lại, đây là lý do khiến mất môi trường sống nhanh chóng được coi là nguyên nhân chính gây nguy hiểm cho loài, và không có lực lượng nào mạnh hơn trong vấn đề này so với con người. Ở một mức độ nào đó, mọi phần của trái đất đã bị ảnh hưởng bởi các hoạt động của con người, đặc biệt là trong thế kỷ qua. Điều này áp dụng trên hầu hết mọi quy mô, từ việc mất vi khuẩn trong đất đã từng hỗ trợ rừng nhiệt đới, đến sự tuyệt chủng của cá và các loài thủy sinh khác trong môi trường nước ngọt bị ô nhiễm, thay đổi khí hậu toàn cầu gây ra bởi việc thải khí nhà kính. Từ quan điểm của một đời người, những thay đổi như vậy có thể khó phát hiện và ảnh hưởng của chúng đối với từng loài có thể khó dự đoán. Nhưng bài học là đủ rõ ràng. Ví dụ, mặc dù nhiều quốc gia đã có kế hoạch trồng nhiều khu rừng nhiệt đới, chúng rất dễ bị phá hủy bởi vì các loại đất mà chúng phát triển rất nghèo trong các chất dinh dưỡng sẵn có. Nhiều thế kỷ có thể được yêu cầu mang lại một khu rừng bị cắt giảm hoặc bị đốt cháy trong không gian vài năm. Nhiều loài động vật và thực vật bị đe dọa nghiêm trọng trên thế giới sống trong các khu rừng như vậy, và chắc chắn rằng một số lượng lớn chúng sẽ biến mất nếu tỷ lệ mất rừng hiện tại tiếp tục. Môi trường sống trên thế giới là không thể thay đổi và tồn tại cố định.
P/S:ggdịch is free
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chụy Google dịch đọc méo hiểu gì nên mới lết xác lên đây đấy -.-
Television is an important invention of the twentieth century. It has been ....so... popular that now we can't imagine what life would be ...like.... if there were no television. Television is a major ....means.... of communication. It brings pictures and sounds from around the world into millions of homes. Through ....television..... , viewers can see and learn about people, places and things in faraway lands.Television .....widens...... our knowledge by introducing to us new ideas .....which.... may lead us to new hobbies and recreations. In addition ....to..... the news, television provides us with a variety of programs that can satisfy .....every..... taste. Most people now seem to like spending their evenings .....watching..... television. It is more convenient for them to sit at home watching TV ....than..... to go out for amusements anywhere else.
Television is an important invention of the twentieth century. It has been ..SO..... popular that now we can't imagine what life would be ....LIKE... if there were no television. Television is a major ....MEANS.... of communication. It brings pictures and sounds from around the world into millions of homes. Through .....TELEVISION... , viewers can see and learn about people, places and things in faraway lands.Television .....WIDEN...... our knowledge by introducing to us new ideas .....WHICH.... may lead us to new hobbies and recreations. In addition .....TO.... the news, television provides us with a variety of programs that can satisfy .....MANY..... taste. Most people now seem to like spending their evenings ......ON.... television. It is more convenient for them to sit at home watching TV .......THAN.. to go out for amusements anywhere else.
The National Health Service in Britain has grown into (1)such big organization that it now employs more people (2) than other in the country. (3)However efficient an organization like this may be, it is bound to (4)make mistakes sooner or later but (5)there is little the public can do when they occur.The Patients' Association gives (6)people advice when they think they have not been properly looked after. At present the Association is fighting against the Government's idea (7)of substituting general health centers for individual doctors. It says it does not want to tell the Health Service (8)what to do but add that it (9)should spend more money on improving the standard of doctors, (10)which would be cheaper than building health centers.
1. there / new / customs / different / be / countries / for / celebrating / year.
A. There are customs different countries for celebrating the New Year.
B. There are various customs for celebrating the New Year in different countries.
C. There are customs in different countries for celebrating New Year.
D. There is customs in different countries for celebrating the New Year.
2. day / May / celebrated / mother’s / second / Sunday.
A. Mother’s day celebrated on the second Sunday in May.
B. Mother’s day was celebrated on the second Sunday in May
C. Mother’s day is celebrated the second Sunday in May.
D. Mother’s day is celebrated on the second Sunday in May.
3. best / Mom / gift/ for / of all / American / day / leisure / is.
A. The best gift of all for American Mom is the day of leisure.
B. The best gift for all American Mom is the day of leisure.
C. The best gift of all for an American Mom is a day of leisure.
D. The best gift of all for American Mom is a day of leisure.
4. Sunday / Father’s Day / be / celebrated / third / June / countries.
A. Father’s Day celebrated the third Sunday in June in countries.
B. Father’s Day is celebrated on the third Sunday in June in some countries.
C. Father’s Day is celebrated on third Sunday June in some countries.
D. Father’s Day celebrated the third Sunday in June in some countries.
5. celebrate / Independence / we / Day / second / September.
A. We celebrate Independence Day the second of September.
B. We celebrate our Independence Day the second of September.
C. We celebrate Independence Day on second September.
D. We celebrate our Independence Day on the second of September.
6. “Ring a bell” / be / Christmas Eve / song / which / sung.
A. “Ring a bell” was a song which sung in Christmas Eve.
B. “Ring a bell” is a song which is sung on Christmas Eve.
C. “Ring a bell” is a song which sung at Christmas Eve.
D. “Ring a bell” is a song which was sung on Christmas Eve.
7. be / important / part / Mother’s Day / flowers.
A. Flowers are important part on Mother’s Day.
B. Flowers are important of Mother’s Day.
C. Flowers are an important of Mother’s Day.
D. Flowers are part of Mother’s Day.
8. what / you / often / do / birthday?
A. What do you often on your birthday?
B. What do you often do on your birthday?
C. What are you often do on your birthday?
D. What do you often do on birthday?
9. we / go / zoo / if / it / be / nice / Sunday
A. We go to the zoo if it is nice on Sunday.
B. We will go to zoo if it is nice on Sunday.
C. We will go to the zoo if it is nice on Sunday.
D. We will go to the zoo if it is nice Sunday.
10. they / invited / I’d / go / if.
A. If they invited me
B. I’d go if they invited
C. If they invited I’d go
D. If they invited me, I’d go
Chon dap an:
1. On the way to school this morning I met Mrs. Ngan,......used to be my old teacher
A. whom B. which C. who D. that
2. The morenyou worry about the problem,........serious it will become
A. the most B. the fewer C. the least D. the more
3. My sister used to study in Beijing,.........is the capital city of China
A. that B. whose C. which D. where
4. You'd better bring along a raincoat.....it rains this afternoon
A. as long as B. therefor C. in case D. unless
5. When you go through the customs, your luggage......by a customs officer
A. may check B. may be check C. should check D. may checked
=>Câu này mk thấy hơi lạ
6. Do you believe there is life.....other planets?
A. at B. on C. with D. in
7. I'm sorry for being late. My car.....on the way here
A. broke down B. went out C. broke up D. broke out
8. She told me that she would leave for Thailand......
A. the previous day B. the day before C. the last day D. the next day
Chon trong am:
1. A. category B. dormitory C. temperature D. communicate
2. A. compare B. account C. conserve D. pleasure
Chon dap an:
1. On the way to school this morning I met Mrs. Ngan,......used to be my old teacher
A. whom B. which C. who D. that
2. The morenyou worry about the problem,........serious it will become
A. the most B. the fewer C. the least D. the more
3. My sister used to study in Beijing,.........is the capital city of China
A. that B. whose C. which D. where
4. You'd better bring along a raincoat.....it rains this afternoon
A. as long as B. therefor C. in case D. unless
5. When you go through the customs, your luggage......by a customs officer
A. may check B. may be checked C. should check D. may checked
6. Do you believe there is life.....other planets?
A. at B. on C. with D. in
7. I'm sorry for being late. My car.....on the way here
A. broke down B. went out C. broke up D. broke out
8. She told me that she would leave for Thailand......
A. the previous day B. the day before C. the last day D. the next day
Chon trong am:
1. A. category B. dormitory C. temperature D. communicate
2. A. compare B. account C. conserve D. pleasure
1. The Prime Minister is likely to call an early ganeral election.
-> There is every.........likelihood that the Minister will call an early ganeral election.............
2. Because there is no atmosphere on the moon, the sky there is black.
-> Because of.....the lack of atmosphere on the moon, the sky there is black...........
A