Unit 13 We're trying to save the earth!学情评估（含答案）

UNIT 13学情评估 一、单项选择。(共20分) 1. (　)Nowadays everyone should take____ part in protecting the environment to save____earth. A．/; a B．/; the C．the; the D．a; the 2. (　)—Who do you think will have this job, Helen or Grace —Grace.She has the ____ of a good education. A．friendship B．development C．advantage D．discovery 3. (　)Before you travel，you need to ____ water and gas. A．turn off B．turn up C．turn on D．turn down 4. (　)The boy can't____the smartphone because it's too expensive. A．afford B．like C．bring D．find 5. (　)—Why does your family collect empty plastic bottles —Because we want to ____ them to protect the environment. A．recycle B．repair C．replace D．review 6. (　)When our parents become too old to take care of themselves one day, they ____ be looked after well by us. A．may B．can't C．needn't D．should 7. (　)Junk food is ____ our teeth, but some people don't care. A．harmful to B．famous for C．careful about D．different from 8. (　)—Can you help me lay the table, Paul —Just a minute.I____ the phone. A．answered B．am answering C．was answering D．have answered 9. (　)—Have you heard about the big change in the old town area —Yes，they're going to ____ that old cinema and build a modern shopping center there instead. A．set up B．pull down C．take down D．put up 10. (　)—To help protect the environment, I think riding a bike is a good idea. —____．But it's difficult to stop driving cars. A．I don't think so B．I'm afraid not C．I agree with you D．Not really 二、完形填空。(共15分) Ever since “Mother Nature” gave me life, I have expected to grow tall and big. As a young__11__， I was well protected in the forest.I used to__12__ a good time with my friends under the blue sky and __13__ the river.Our only purpose was to stand high.My pal, Tim, often said, “All I ask for is to be __14__ the whole day.” More than 300 days passed and we grew straight.Until one day, our__15__ birthday, people came, moved us from the __16__ and put us on their trucks.“ I don't want to go! ” Tim cried. After a long journey, we arrived in a completely different place with __17__ green.Here we were planted in a line. __18__ the wind blew strongly, I could not even open my eyes to see Tim __19__ beside me.So we needed enough__20__ to grow thicker and higher to stop the wind. As time went by, we finally__21__ much stronger.I could keep my eyes open in the wind! I even found the blue sky was back! This was no longer no man's land, and hundreds of visitors came here.A man took a picture of us with his__22__. “ Thank you.We can enjoy clear days__23__ worrying about sandstorms.” A young girl jumping up and down came over and__24__ me.“Thank you, ” she said. “ It's you that have turned the desert into green land！” Tim and I smiled at each other, feeling__25__. The sun was shining brightly in the bluer sky. 11. (　)A.tree B．fish C．girl D．boy 12. (　)A.choose B．forget C．have D．miss 13. (　)A.in B．along C．under D．on ... ...