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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 -.-
Are you looking for a cheap. clean, effective source of power that doesn't cause pollution or waste natural resources? Look no further than solar energy from the sun. At present, most of our electricity comes from the use of coal, gas, oil, or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the Earth is enough to provide power for the total pollution. Many countries are already using solar energy. Solar panels are placed on the roof of a house and the Sun's energy is used o heat water. The energy can be stored for a number of days, so on cloudy days you can use solar energy. Sweden has an advanced solar energy program. There, all buildings will be heated by solar energy and cars will use solar energy instead of gas by the year 2015.
True or False sentence:
1...........T.........Solar energy can be cheap and clean.
2........F............Most of our electricity now comes from nuclear power.
3..........F..........the solar energy that gets to the Earth cannot provide enough power for the world's population.
4..............T......Solar energy can be used on cloudy days.
5...........T.........All buildings in Sweden will be heated by solar energy in 2050.
Are you looking for a cheap. clean, effective source of power that doesn't cause pollution or waste natural resources? Look no further than solar energy from the sun. At present, most of our electricity comes from the use of coal, gas, oil, or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the Earth is enough to provide power for the total pollution. Many countries are already using solar energy. Solar panels are placed on the roof of a house and the Sun's energy is used o heat water. The energy can be stored for a number of days, so on cloudy days you can use solar energy. Sweden has an advanced solar energy program. There, all buildings will be heated by solar energy and cars will use solar energy instead of gas by the year 2015.
True or False sentence:
1........T............Solar energy can be cheap and clean.
2..........F..........Most of our electricity now comes from nuclear power.
3...........F.........the solar energy that gets to the Earth cannot provide enough power for the world's population.
4.............T.......Solar energy can be used on cloudy days.
5....................All buildings in Sweden will be heated by solar energy in 2050.
Supply the correct verb forms.
1. After (leave) leaving school when she was 18, Laura (go)has gone to Bristol university for three years. While she (be)was at university, Laura (join) joined a university folk group and started singing. It was at this time that she (write)wrote her famous song "The Price of Peace".
2. One of the first novels in history of literature (be)was written in England in 1719. It (be) was Robinson Crusoe by Daniel Dofoe. He (bear) beared in London in a rich family. When Daniel (be) was a schoolboy, he (begin)began to write sstories. After (leave) leavingschool he (work)worked in his father's shop and (write) articles for newspapers. Dofoe (visit)visited many countries and (meet) met many people. That helped him much in his writings.
3. A friend of mine, Judith Nelson, (presently, work)is working in the international sales division at an electronics firm. She (just, return) has just returned from a trip to Japan. She (be)was asked to go there because she can speak Japanese. For four years, she (never have) had never had the opportunity to use her Japanese until she (go) went to Tokyo last month. While she (be)was there, she (speak) spoke Japanese everyday and (enjoy) enjoyed very much of it.
4. Ever since the day i (decided)decided to move to London, I (worry) worried whether the decisior. I (take)took was the right one. As I (already sell) have already solden my house and (arrange)have arranged a new job, it is too late to change my mind. However, since then I (hear)heard a lot of negative things about living in the Capital and lately some of them (begin) began to bother me. I (grow) have grown up in a small town and have spent all my life there.
5. Mary (have)had to go to New York last week, but she almost (miss) missed the plane. She (stand)was standing in the queue at the check-in desk when she suddenly (realize) realized that she (leave)had left her passport at home. Fortunately, she (not live) doesn't live very far from the airport so she (have)had time to go back home to get the passport. She (get)has got back to the airport just in time for her flight.
6. Rob Fellow (come)comes from England. He (come)came to Paris six months ago to learn French. He (start) started learning French at school in England when she was eleven so he (learn)has learnt it for nearly 10 years. He just (take) has just taken an exam. If he passes, he ( move) will move into the next class. He (be) is excited today because his parents (come) will come tommorow to stay with him for a few days.
7. (Bear)Born in Scotland in 1847, Alexander Bell (become)became interested very early in the methods of human communication. He (influence) was influenced by his father and grandfather, who (spend) spent years working with deaf people and those with faulty speech. Bell's father even (go) went so far as to develop as system of so-called"visible speech" for the deaf. He (used) sketches of the different positions of the lips and tongue. This science of visible speech (formed) the foundation of young Bell's knowledge of the mechanics of human speech. But the young boy's knowledge of other subjects (not/advance) doesn't advance quite as rapidly.
Read the passage. Write T for true sentences, F for false sentences and N for the sentences containing no information.
It is great to have pen pals. In my opinion, friendship is among the meaningful relations in our life. Many of my friends have pen pals and they correspond regularly. A friend of mine once got a letter from the school mailbox and told me a lot of interesting things about her pen pal. That made me excited and I was eager to have one. Therefore, I got online and did some chatting. I was lucky to get to know a very nice Australian girl. Her name's Jenny. She and I are the same age and we have a lot of things in common.
Although my English was not very good at first, we were able to understand each other quite well. My English has improved a lot. Jenny has never been to Viet Nam. However, she thinks well of our country and our people. When she comes to Viet Nam, I will take her to some interesting places, especially our World Heritage Sites, such as Ha Long Bay, Hoi An Ancient Town, My- Son Tower. Through her mail, she tells me about her country. Thanks to Jenny, I know more and more about Australia. I hope to be an exchange student in Australia some day and we will be able to meet.
1. The writer's English is now better than before. ( T )
2. The writer has never been to Australia. ( T )
3. Australia doesn't have as many World Heritage Sites as Viet Nam. ( F )
4. The pen pal mentioned is as old as the writer. ( T )
5. They correspond in Vietnamese ( T )
B. Use the words given in capitals at the end of each sentence to form a word that fits in the space.
1. The first inhabitants of Iceland were a group of _Norwegian_ families who settled on the island in AD 874. NORWAY
2. There was disagreement about whether the country needs to maintain a _deterence_. DETER
3. Hundreds of _ evacuees_ from the war zone have arrived in the city and we are trying to find homes for them. EVACUATE
4. _Bedridden patients are often given exercises to help prevent their muscles from becoming stiff. BED
5. It was this passion for fast cars that led to his _untimely_ death at the age of 33. TIME
6. Every effort is made to _rectify_ any errors before the book is printed. RIGHT
7. In a recent opinion poll, a majority of _respondents__ were against nuclear weapons. RESPONSE
8. Her mouth is _seductively__ lipsticked and her eyes are wide open with anticipation. SEDUCE
9. The script has a refreshing _spontaneity_ and sparkle. SPONTANEOUS
10. It’s better to be an _omnivore_ and eat a variety of plant and animals in case there is a shortage of one particular kind of food.
Cars will use solar power instead of gas in Sweden by the year 2015.
OR: In Sweden, cars will use solar power instead of gas by the year 2015.
