中小学教育资源及组卷应用平台 Unit 10 Air Look and learn Ask and answer分层练习 基础巩固 一、用所给词的适当形式填空。 1. Trees _____ (keep) the air clean. 2. The smoke from buses _____ (be) dirty. 3. There are a lot of _____ (factory) in the country. 4. What _____ (make) the air dirty 5. _____ (not open) the door. 二、单项选择。 ( )1. The toy moves _____ in the air. A. slowly B. slower C. slows ( )2. Let’s go to the park, Ben. The air is clean and _____ there. A. beautiful B. dirty C. fresh ( )3. Look at the black smoke _____ the factory. A. from B. out C. a ( )4. _____it _____ any colour or taste A. Do; have B. Does; have C. Does; has ( )5. The smoke in the street _____ the cars, buses and factories. A. coming from B. comes from C. come from 能力提升 三、问答匹配。 ( )1. Are you crying ( )2. How is the air in the park ( )3. What’s the matter ( )4. What should we do to make the air clean ( )5. What makes the air dirty A. The air is clean in the park. B. The smoke. C. No. My eyes hurt. D. We should plant more trees. E. I lost my kite. 四、补全对话。 Lisa and Ben live in a city. When they were young, they always played in the playground. A：Hi, Ben. 1. _____ B：What’s the news A：2. _____ B：Oh, my god！3. _____ A：Yes. And one of the main reasons is those factories. B：4. _____ That’s another reason. A：Yes. 5. _____ But now the air sometimes smells bad. A. Now the air in our city is becoming dirtier and dirtier. B. The playground has become a factory. C. More and more people have cars now(现在). D. Have you heard the news E. When we were young, the air was very clean. 参考答案 一、 1. keep 2. is 3. factories 4. makes 5. Don’t open 二、 1-5 ACABB 三、 1-5 CAEDB 四、 1-5 DBACE 21世纪教育网 www.21cnjy.com 精品试卷·第 2 页 （共 2 页） HYPERLINK "http://21世纪教育网(www.21cnjy.com) " 21世纪教育网(www.21cnjy.com)
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