Unit 13 We're trying to save the earth! Section B 课时基础练（2课时，含答案）

Unit 13　Section B (1a~1e) 【课时衔接】 一、用括号内所给单词的适当形式填空 1.Hainan is in the 　 　(south) part of China. 2.We all support his 　 　(science) research. 3.This is an 　 　(danger) animal. We should try to save it. 4.Smoking is 　 　(harm) to your health. You must give it up. 【基础通关】 二、用方框中所给单词的适当形式填空 recycle, napkin, wash, easy 5.The math problem is 　 　. We can work it out quickly. 6.We must 　 　 our hands before we eat meals. 7.Please put these waste paper 　 　 into the bin. 8.As we know 　 　 paper is very necessary. 三、单项选择 ( )9.It's dangerous 　　　　with the wild animal. A.for us to play　　　 B.of us playing C.for us playing D.of us to play ( )10.—What should I do to be a green man —It's easy. For example, 　　　　your own bags when 　　　　. A.taking; shopping B.take; shopping C.taking; you shopping D.take; you shopping ( )11.—We're supposed to recycle paper and bottles. It can help the environment. —　　　　. It can save money, too. A.It's nothing B.Best wishes C.I agree D.All right ( )12.We can't look at our phone 　　　　we are riding a bike. It's dangerous. A.if B.though C.while D.until ( )13.Remember 　　　　the light when you leave the classroom. A.to turn off B.to cut off C.turning off D.cutting off 【素养提升】 四、阅读理解 Cars make our lives more convenient. But they can also be a problem. For example, fossil fuel(化石燃料) cars mainly cause air pollution. To improve the environment, many countries are developing electric vehicles (EVs电动车). Among them, China is taking a leading role and has created the world's largest EV market. Last year, about half of the 6, 500, 000 EVs in the world were sold in China. “Filling up a fossil fuel car with gas(汽油) is more expensive than charging(充电) an electric car,”said Wu Hao, who bought an electric car this year. However, there are still some problems. It can be hard to find charging piles(充电桩) and the cars can't go far before needing to be recharged. Some of these problems are being solved. In 2014, China had about 31,000 charging piles. Now China has the world's largest EV charging network, with more than 1, 700, 000 charging piles in total. Developing EVs is one of many efforts that China has made to cut down pressure on its environment after the government promised to stop increases in carbon dioxide emissions (二氧化碳排放量) by 2030. “As China goes, so will the world's car industry,” The Wall Street Journal said. China has taken a leading role in the world's electric vehicle industry. ( )14.　　　　 mainly cause air pollution according to the passage. A.Subways B.Sharing bikes C.Electric vehicles D.Fossil fuel cars ( )15.About　　　　electric vehicles were sold in China last year. A.1, 500, 000 B.2, 600, 00 C.3, 200, 000 D.4, 300, 000 ( )16.What does Wu Hao think of charging an electric car A.It's more expensive than filling up a fossil fuel car with gas. B.It's less expensive than filling up a fossil fuel car with gas. C.It ... ...