Unit 8 Section A (3a－3b)
同步练习
基础强化
一、根据句意、首字母提示完成单词拼写
1. We were flying ________ (在……上面)the clouds.
2. She acts as if she’s above the _________ (法律).
3. Most students in our class go in for _________ (科学的) activities.
4. The loss of the first game was a _________ (残忍的) thing for them.
5. Do you know why it is _________ (有害的) to health to eat too much
6. The coal _________ (工业) has decided to cut down the carbon emissions in the near future.
二、用括号内所给单词的适当形式填空
1. The police usually help people out of __________ (danger) situations.
2. Yuan Longping was a world-famous __________ (science).
3. Smoking is __________ (harm) to our health.
4. Many people forget that _________ (save) the earth begins with small things.
6. They have asked the government to develop laws _________ (stop) the sale of shark fins.
三、根据提示完成句子
1. 收到杰克的来信，比尔很兴奋。
Bill was excited about ________ ________ Jack.
2. 躺在床上看书对你的眼睛是有害的。
Reading in bed will ________ ________ ________ your eyes.
3. 这个航班因恶劣天气延误了。
The flight was delayed_________ __________ the bad weather.
4. 考拉被列为澳大利亚濒临绝种的动物之一。
The koala is listed among Australia’s __________ _________.
5. 他一把接住滚过来的球，把它扔了回去。
He caught the ball as it rolled along and ________ ________ ________.
6. 我们的办公室是大楼顶部一个宽敞明亮的房间。
Our office was a light spacious room _______ ________ ________ ________the building.
能力训练
四、选择填空
1. —Is this John's T shirt
—No，it ______ be John's. It must be too small for him.
A．might B．can't C．needn't D．may
2. —What ______ the number of the students in your school
—About two thousand. A number of them ______ from the countryside.
A. is; are B. is; is C. are; is D. are; are
3. In our city, the number of the teachers______ about 2, 000, but only about _____ of them are men teachers.
A. is; seven hundreds B. are; seven hundred
C. is; seven hundred D. are; seven hundreds
4. Mike doesn't have enough money, so he can only ______ some bread.
A．offer B．pay C．afford D．provide
5. She ______ some branches（(树枝)from the tree in the garden just now.
A. cut down B. cut up C. cut off D. cut in
6. —Sam, let’s ______ these old things. I don’t need them anymore.
—No. We can try to put them to good use.
A. pull down B. fix up C. hand out D. throw away
7. Sharks may disappear one day ______ we don’t do something to stop the sale of shark fins.
A. if B. although C. when D. but
8. Our teacher often warns us it’s ______ to leave much personal information on the Internet.
A. interesting B. exciting C. difficult D. dangerous
9. ______, China has taken many measures (措施) to protect the environment.
A. In the past B. So far C. In the future D. In trouble
10. —To achieve a bright future, we should ______ study hard _____ keep in good health.
—I agree with you.
A. not; but B. not only; but also C. neither; nor D. either; or
五、选词填空
clean up, make a difference, play a part in, be harmful to, hear of
1. All the students in our class have ______________ the park.
2. It gave me much pleasure to _______________ your success.
3. Her encouragement _______________ to little Tom since then.
4. Would you like to _______________ planting more trees in our schoolyard
5. The airbags (安全气囊) in a car could _______________ children under 13 years old.
素养提升
六、短文填空
act, take, step, condition, do, activity, although, should, improve, throw
Today, we still have some environmental problems. As a middle school student, we should do something 1.__________ more environmental 2.__________ .
On the one hand, we ourselves 3. __________ destroy the environment, such as 4.__________ the rubbish about. We can 5. __________ part in some commonweal（ 公益）6.__________ to plant more trees, for the trees are good for our environment.
On the other hand, if someone does harm to the environment, like spitting on the ground or 7.__________ on the grass, we can stop them from 8. __________ so. If there’s a factory which destroys the environment, we can tell the relative （相关）department or the police about it.
All in all, 9. __________ we are students, we can still do a lot to protect our environment, and we should take 10. __________ from now on.
七、阅读理解
Why is clean water so important to developing countries？A recent report shows that about 80 percent of diseases in developing countries are caused by poor water and low sanitation (卫生) conditions.In those countries，women and girls spend several hours collecting water，but often polluted，far away from their families.The polluted water more or less influences their health.In this case，there is an urgent (迫切的) need for people in developing countries to have access to (有机会或权利使用) clean water to improve their health.
Here is a short story about Hadjara Zakari，a 12－year－old girl in Niger.Having access to clean water changed her life.She learned about the importance of hand－washing when the school first received clean water three years ago.That evening，she told her father，“You shouldn't eat with me unless you clean your hands.” Her father was very angry and shouted at her，“It's not up to you to tell me what to do！” Stunned (目瞪口呆的)，Hadjara sat in silence.But she knew she was right.In protest，Hadjara refused to eat dinner that night.After her father questioned Hadjara's head teacher，he understood the importance of hand－washing and his daughter's intentions (目的)．The girl really wanted her family to live longer and healthier lives.
For people in developing countries，clean water can change many things，especially improve their health.So，from now on，let's avoid wasting water and take action to save water，which is important to people all over the world.
1．According to the recent report，poor water and low sanitation conditions can cause ________.
A．traffic problems B．forest fires C．many illnesses
2．The key to improving people's health in developing countries is ________ in Paragraph 1.
A．to get clean water B．to exercise often C．to refuse drugs
3．What can we infer (推断) from Paragraph 2
A．Hadjara laughed at her father's foolishness.
B．Hadjara refused to eat dinner that night in order to lose weight.
C．Hadjara's father understood his daughter's love and care for him later.
4．The underlined word “protest” in this passage means “________”．
A．抗议 B．保护 C．节约
5．The purpose of the writer is to ________.
A．teach people how to wash hands
B．call on people all over the world to save water
C．show developing countries rich in clean water
参考答案
一、1.above 2.law　3.scientific 4.cruel　5.harmful　6.industry　
二、1.dangerous 2.scientist 3.harmful 4.saving 5.to stop
三、1.hearing from 2.do harm to 3.because of 4.endangered animals 5.threw it back 6.at the top of
四、1-5BACCC 6-10DADBB
五、1.cleaned up　2.hear of 3.has made a difference　4.play a part in 5.be harmful to
六、1.to improve 2.conditions 3.shouldn't 4.throwing 5.take 6.activities 7.stepping 8.doing　9.although 10.action
七、1-5CACAB

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