Unit13 We’re trying to save the earth Period 3同步练习

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Unit13 We're trying to save the earth!
Section A Period3同步练习
1、用括号中所给单词的适当形式填空。
1. There are many ____________ (danger) animals in the world today because of humans' improper behavior.21教育网
2.We all know that Taiwan is in the _________(south) part of China.
3. __________ (science) farming is important.Now more and more farmers are interested in it.www.21-cn-jy.com
4.China is facing more and more ________________(environment) problems.
5.Fruit juice can be _________ (harm)to children's teeth.www-2-1-cnjy-com
2、单选。
1.I don't know the writer，but I have ________ him.21*cnjy*com
A．laughed at B．waited for C．heard of D．agreed with
2.Drinking alcohol(白酒)can be ________ your brains. So people in China aren't allowed to drink it if they are younger than 18.2-1-c-n-j-y
A．good at　 B．good with　 C．harmful to　 D．thirsty for
3.Because of the water pollution，they had to ________ the city's water supply for several days.21cnjy.com
A．cut up B．cut out C．cut off D．cut in
4. —What film do you like best
—The Martian. It _______shows a lot of imagination, _____has a sense of humor.
A．too; to B．neither; nor
C．either; or D．not only; but also
5.—What ________ the number of the students in your school？21·cn·jy·com
—About two thousand.A number of them ________ from the countryside.
A．is；are B．is；is
C．are；is D．are；are
三、完成句子。
1．很多野生动物处于极度危险中。
Many wild animals are ________ ________ ________.21世纪教育网版权所有
2．交通废气对环境有害。
Traffic fumes ________ ________ ________ the environment.
3．对政府来说，教育是位于议程最顶端的事情。
For the government, education is now ________ ________ ________ ________ the agenda.【来源：21·世纪·教育·网】
4．如果它们的数量降到太低,它将会给全部海洋生命带来危险。
If their numbers________ ________ ________,it________ ________danger to all ocean life. 【来源：21cnj*y.co*m】
5．我觉得对我来说是采取行动的时间了。
I felt that it was time for me ________ ________ ________．【出处：21教育名师】
四、阅读。
Some visitors to new places take pictures of animals, but other visitors hunt (打猎) and kill them. They do not kill animals for food, but because they like hunting. In many countries people can make a lot of money from animals.21*cnjy*com
Elephants die because people want ivory. Rhinoceros (犀牛) die because people want to buy their horns.
Pollution (污染) of our land, sea, rivers and sky is getting worse and worse. We are making our world a much dirtier place, so many animals cannot live in it. Pollution is bad for all of us. It’s killing animals. Sooner or later it is going to kill people too.We put new buildings on empty land and don’t think about animals. We make new roads, move rivers and cut down trees. So we are taking the natural homes of animals very fast. Where can they go In the end, the answer is often nowhere and the animals die. Animals are in danger from natural accidents. Some animals die because the weather changes and some animals are also in danger from our behaviour (行为). We can not protect animals or people from accidents or changing the weather, but we can think about our behaviour and change that!
（1）The meaning of the underlined word “ivory” in the passage is _______in Chinese.
A . 虎骨 B . 象牙 C . 羊绒 D . 鹿茸
（2）The number of the animals is becoming smaller and smaller because of ______.
A . natural accidents B . people’s behaviour
C . the changing weather D . all of the above2·1·c·n·j·y
（3）Without animals or plants, __________. 【版权所有：21教育】
A . people will be happy B . people will have less room
C . people will die sooner or later D . there will be no pollution
（4）We should __________ to protect animals and ourselves.
A . take away more land B . change our bad behaviour
C . cut down trees D . make new roads
（5）What’s the best title for the passage 21·世纪*教育网
A . My favourite animals B . Natural accidents
C . Pollution D . Animals in danger21教育名师原创作品
Unit13 We're trying to save the earth!
Section A Period3同步练习答案
三、1.in great danger 2.are harmful to 3.at the top of 4.fall too low will bring
5.to take action
四、BDCBD
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