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1. There’s nobody in the classroom. They ____________ (have) a PE lesson on the playground.
答案
are having
2. The film ____________ (be) on for 5 minutes. Are you sure you still want to buy the ticket?
答案
has been
3. Metal ____________ (feel) much cooler in winter than in summer. Don’t you know why?
答案
feels
4. He told me that he ____________ (borrow) a book on star signs from the library the next week.
答案
would borrow
5. James ____________ (lay) his hand on my shoulder and I put mine around his at the same time.
答案
laid
6. The Greens ____________ (discuss) the family trip when there was a loud knock on the door.
答案
were discussing
7. Last Friday, a survey about living on Mars ____________ (carry) out in our school.
答案
was carried
8. I’m not sure if it’s worth the risk ____________ (give) up my present job. It’s too challenging.
答案
to give
四、完形填空 先通读下面的短文，掌握其大意，然后在每小题所给的四个选项中，选出可以填入空白处的最佳选项。
For more than a century, people have wondered whether there is life on Mars. Scientific searches for this began in the 19th century, and they 1 today with the development of research methods and space science.
In the late 19th century, the American scientist Percival Lowell thought he saw rivers on the surface of Mars, and if this was true, it might 2 that our near planetary neighbor might have life on it.
However, in the 1960s and 70s, the spaceship sent to Mars found that the rivers did not exist. Instead, they showed a cold 3 world. Even so, people were quite excited to watch the first pictures sent from the 4 of this mysterious planet by spacecraft.
Is it possible that there is life on Mars?
5 no one can make sure, it is not completely impossible.
To have life, there needs to be fresh water. Evidence for that has been growing and NASA seemed to have found that there was a little water there in 6 research. In 2000, NASA discovered gullies (冲沟) that might have been 7 by running water. But the temperatures were so low that water would turn into ice, so many gave up the idea.
For now, the latest 8 reported earlier has found different kinds of salts on the crater (火山口) walls. That’s important because salt can melt (融化) ice and make it flow. The 9 proves that Mars is still active and it 10 the possibility that it may have simple living creatures.
We can look forward to having closer contact with unknown friends away on Mars in the future.
( ) 1. A. share B. follow C. stop D. continue
( ) 2. A. mark B. discover C. prove D. increase
( ) 3. A. colourful B. happy C. wild D. beautiful
( ) 4. A. surface B. sight C. back D. top
( ) 5. A. Since B. Because C. Instead D. Although
( ) 6. A. less B. more C. earlier D. later
( ) 7. A. influenced B. caused C. attacked D. broken
( ) 8. A. book B. newspaper C. picture D. study
( ) 9. A. content B. discovery C. report D. news
( ) 10. A. believes B. doubts C. increases D. lifts
For more than a century, people have wondered whether there is life on Mars. Scientific searches for this began in the 19th century, and they 1 today with the development of research methods and space science.
In the late 19th century, the American scientist Percival Lowell thought he saw rivers on the surface of Mars, and if this was true, it might 2 that our near planetary neighbor might have life on it.
However, in the 1960s and 70s, the spaceship sent to Mars found that the rivers did not exist. Instead, they showed a cold 3 world. Even so, people were quite excited to watch the first pictures sent from the 4 of this mysterious planet by spacecraft.
Is it possible that there is life on Mars?
5 no one can make sure, it is not completely impossible.
To have life, there needs to be fresh water. Evidence for that has been growing and NASA seemed to have found that there was a little water there in 6 research. In 2000, NASA discovered gullies (冲沟) that might have been 7 by running water. But the temperatures were so low that water would turn into ice, so many gave up the idea.
For now, the latest 8 reported earlier has found different kinds of salts on the crater (火山口) walls. That’s important because salt can melt (融化) ice and make it flow. The 9 proves that Mars is still active and it 10 the possibility that it may have simple living creatures.
We can look forward to having closer contact with unknown friends away on Mars in the future.
( ) 1. A. share B. follow C. stop D. continue
( ) 2. A. mark B. discover C. prove D. increase
( ) 3. A. colourful B. happy C. wild D. beautiful
( ) 4. A. surface B. sight C. back D. top
( ) 5. A. Since B. Because C. Instead D. Although
( ) 6. A. less B. more C. earlier D. later
( ) 7. A. influenced B. caused C. attacked D. broken
( ) 8. A. book B. newspaper C. picture D. study
( ) 9. A. content B. discovery C. report D. news
( ) 10. A. believes B. doubts C. increases D. lifts
答案
四、1-5: DCCAD 6-10: CBDBC
