九年级英语（新目标）同步课时训练Unit 13 We’re trying to save the earth!（6课时 含答案）

Unit 13 We're trying to save the earth! 第一课时Section A(1a～2d) I．根据句意及汉语提示填写单词。 1. We can clearly see fish swimming at the _____（底部）of the river. 2. The girl seldom goes outside because of a(n) _____（丑陋的）scar (疤痕) on her face. 3. We should use cloth bags instead of paper or _____（塑料的）bags. 4. The villagers used to burn _____（煤）to get warm. 5. Don't _____（乱扔）waste things everywhere. Ⅱ．用括号内所给单词的适当形式填空。 6. There is a _____ (wood) table in the middle of the room. 7. There used to be many _____ (fisherman) in the village. 8. Everyone in the class is asked to play a part in _____ (keep) the classroom clean. 9. Can you tell me the machine's _____ ( advantage)? 10. Her _____ (act) tell us a lot about her purpose. III．完成句子，根据汉语意思完成英语句子，每个空格填一个单词。 11.这个房间里将有一个聚会，请在聚会后把房间打扫干净。 There will be a party in this room. Please _____ it _____ after the party. 12.这个篮子里装满了苹果。 This basket _____ _____ _____ apples. 13.我们的行动会带来不同，并引领一个更好的未来。 Our actions can _____ _____ _____ and lead to a better future. 14.种植更多的树木可以减轻空气污染。 Planting more trees can _____ _____ air pollution. 15.这座城市里的每个人都应该在保护环境方面出一份力。 Everyone in the city should _____ _____ _____ _____ _____ the environment. Ⅳ. 阅读理解。 读下面关于空气污染的文章，然后回答文章后的问题，正确的答案写T，错误的答案写F。 As we all know, the air is around the earth. It helps protect the earth and allows animals and plants to live. Without it, we would be burned by the intense (强烈的）heat of the sun during the day. And we would die of cold at night. Any additional（额外的）gases（气体）that are introduced into the air to break this natural balance（平衡）and cause harm to living things can be called air pollution. Things that pollute the air are called pollutants. There are two types of pollutants. Primary pollutants are those gases that go into the air directly to make it unclean. They include CO2 from cars and coal. When pollutants mix up in the air, they form more dangerous pollutants. They are called secondary pollutants. When some air pollutants go into the air, they mix with the clouds, and acid rain (酸雨) is formed. When acid rain falls over an area, it can kill trees and harm animals. ( )16. The air protects us against the intense heat of the sun. ( )17. Air pollution appears when the natural balance in the air is broken. ( )18. CO2 is a kind of secondary pollutant. ( )19. Secondary pollutants are more dangerous than primary pollutants. ( )20. Acid rain does no harm to plants. 更多精品资料请扫码进入 【参考答案】 Unit 13 We're trying to save the earth! 第二课时Section A(3a～3b) I．根据句意及汉语提示填写单词。 1．I think it's _____（残酷的）of them to shoot the animals. 2. With the development of _____（工业）, it will cause some pollution problems. 3．Reading in the sun is _____（有害的）to your eyes. 4. The government has made some _ ... ...