Unit 13 We're trying to save the earth!Section B (1a-1e) 复习练习题 （含答案）

Unit 13 Section B (1a-1e)
一、根据句意用所给词的适当形式填空
1. “Stop　 　(talk) and listen to me,” the teacher said to us.
2. What else can we do　 　(help) save the planet
3. It’s necessary for us　 　(keep) good habits in our daily life.
4. Eric,your car is so dirty.You should go and get it　 　(wash).
5. Now all the e bike　 　in Ningbo must wear helmets(头盔) while　 　.(ride)
二、单项填空
1. People　　　　talk on a mobile phone while they are driving.
A.shouldn’t B.needn’t C.must D.can
2. Please don’t hurt the little animals　　　　you see them on the street.They are our friends.
A.so B.when C.unless D.until
3. — Susan, what are the　　　　of MP5 players
— They are smaller and lighter so that they can be carried very easily.
A.suggestions B.problems C.advantages D.sentences
4. These beautiful animals are endangered.We must　　　　them.
A.save B.show C.stop D.catch
5. — I don’t think the students should be allowed to get their ears pierced.
— 　　　　. Students should pay more attention to their study.
A.Good luck B.It’s a pity C.Never mind D.I agree
三、阅读理解
The world uses about a thousand million tons of water a day.Water is a human right and everyone should have their share.Yet more than 700 million people around the world have trouble getting clean,safe water.
Treating wastewater is a good way to provide fresh water for us.And it also helps the environment by keeping waste out of rivers and oceans.80% of wastewater around the world is not treated at all,and it is running into oceans.But now we have got the technology to treat and reuse the wastewater.
While 75% of our planet is covered with water,only about 2% is fresh water—that comes from rivers,lakes,ice and snow.The rest,98% of the water,is in seas and oceans.It is too salty to drink.Then desalination businesses come in.More than 19,000 factories have been built around the world,mostly in coastal countries.They process more than 92 million tons of water every day.But the technology they use requires a lot of energy.
Scientists are working to create a less costly technology.They want to produce 20 times more clean water and make sure everyone has enough.But for now,the world still faces each day with not having enough water for everyone.
1. How many people have trouble in getting clean water around the world
A.Under 10 million. B.Only 19 million.
C.About 92 million. D.Over 700 million.
2. How does wastewater treatment help the environment
A.By storing waste in ice and snow. B.By letting waste run into oceans.
C.By keeping waste out of rivers and oceans. D.By sending waste to coastal countries.
3. What does the underlined word “desalination” in Paragraph 3 mean
A.远洋运输 B.潮汐发电 C.食盐销售 D.海水淡化
4. What’s the problem of the technology to process water at present
A.It needs much energy. B.It saves much money.
C.It satisfies everyone. D.It causes pollution.
5. What can we infer from the last paragraph
A.Water should be a human right. B.The water problem is still serious.
C.Our planet is covered with water. D.Everyone has enough clean water.
四、同义句转换,每空一词
1. After hearing the exciting news,she got so excited that her eyes were full of tears.
After hearing the exciting news,she got so excited that her eyes　　 　　 　　tears.
2. Don’t forget to lock the door when you go out.
　　 　　lock the door when you go out.
3. I seldom eat junk food because it’s harmful to my health.
I seldom eat junk food because it’s　　 　　my health.
4. I went to the shopping center and bought a handbag for 600 yuan.
I went to the shopping center and　　600 yuan　　a handbag.
答案：
一、
1. talking
2. to help
3. to keep
4. washed
5. riders　　riding
二、
1-6 ABCAD
三、
1-5 DCDAB
四、
1. were　 　filled　 　with
2. Remember　 　to
3. bad　 　for
4. paid/spent　　for/on