人教版(下)必修三 unit 4 课时练习含答案

Part 1 Warming Up, Pre⁃reading, Reading and Comprehending I. 根据下面各句句意以及所给单词的首字母或汉语提示词，写出该单词的正确形式（每空一词）。

1. After dark the plants stop producing ________ (氧).
2. The ________ (气氛) over dinner was warm and friendly. And everyone talked happily.
3. What p________ me is why his books are so popular. I think they are very boring.
4. It’s no use trying to pretend that the problem doesn’t ________ (存在).
5. She’s got a bad cold and her voice is quite u________ her usual one.
6. A v________ storm struck the area last night. Luckily, no one was hurt.
7. Our city has a cheap and reliable public transportation ________ (体系).
8. No decision had been made, and t________ the situation remained unclear.
II. 下面各句中均有一处错误，请找出并改正。

1. It’s so cold to sit outside. Let’s go insid e. ________
2. Something must catch fire. The room is filled of thick smoke. ________
3. He is unable to go to work as the result of the fall from his horse. ________
4. She only allows the children watching television on the weekends. ________
5. I’d be very interesting in knowing more about the servic es your firm offers. ___ III. 根据括号内的汉语提示补全下面句子（每空一词）。

1. She set the alarm so she’d wake up ________ ________ (及时) to get up.
2. It is said that this kind of bird ________ ________ (下蛋) in other birds’ nests.
3. She ________ ________ _______ ________ ________ (生了一个女孩) last night.
4. The bad weather ________ ________ ________ ________ (使我不能参加) the meeting yesterday.
5. ________ ________ (根据) the agreement, neither of them has the right to ask her for money.
6. She had not been friendly to Pete and he, ________ ________ ________ (轮到他), was cold to her when she came to stay.
Part 2 Learning about Language
I. 根据下面各句句意以及所给单词的首字母或汉语提示词，写出该单词的正确形式（每空一词）。

1. These flowers will not grow in cold ________ (气候).
2. The interview came live by ________ (卫星) from Hollywood.
3. Arthur is a very ________ (文雅的), caring person and enjoys life.
4. Amazingly, he survived when his plane c________ into the ocean.
5. B________ is the scientific study of the life and structure of plants and animals.
6. Anything that is dropped falls towards the centre of the earth because of the pull of g________.
II. 用适当的连接词填空。

1. ________ he will come has kept us all excited the whole day.
2. ________ we will go camping or not tomorrow depends on the weather.
3. ________ he said at the meeting surprised everybody present.
4. It is suggested ________ we should eat more vegetables and do more exercise.
5. He didn’t explain, but ________ he won’t go there is clear to all of us.
6. It’s uncertain ________ the experiment is worth doing.
Part 3 Using Language
I. 根据下面各句句意以及所给单词的首字母或汉语提示词，写出该单词的正确形式（每空一词）。

1. You can f________ very easily on the Dead Sea because it’s so salty.
2. A s________ is designed to carry people through space.
3. She gave a gentle ________ (拉) on the rope, and the bell rang.
II. 选用方框内合适的短语并用其正确形式填空（每个短语限用一次）。

1. ________________ cars when you cross the street.
2. The old man runs fast ________________ he were a young man.
3. She tried to ________________ the disappointed boy who failed to win the game.
4. ________________ I could not stay here anymore, I prepared to leave.
5. Other reports said the fire ________________ on a city bus at about 8:30 am as it passed near the zoo.
6. When he ________________ that no one was noticing him, he jumped into the room through the open window.
答案
Part 1
I. 1. oxygen 2. atmosphere 3. puzzles
4. exist
5. unlike
6. violent
7. system 8. thus / therefore
II. 1. so → too 2. of → with
3. 第一个the → a
4. watching → to watch
5. interesting → interested
III. 1. in time 2. lays eggs
3. gave birth to a girl
4. prevented me from attending
5. According to
6. in his turn
Part 2
I. 1. climates 2. satellite 3. gentle
4. crashed
5. Biology
6. gravity
II. 1. That 2. Whether 3. What
4. that
5. why
6. whether
Part 3
I. 1. float 2. spaceship 3. pull
II. 1. Watch out for 2. as if 3. cheer up
4. Now that
5. broke out
6. made sure。