unit4topic2(存儲(chǔ)版)
【正文】 imals in danger. ? With its help,scientists are able to treat many serious diseases. ? However,cloning could be used in some ways to harm society. key sentences ? No one knows for certain. ? In a few years,perhaps robots will think and act for themselves. ? They might treat us as we now treat our pets. ? Using the stars,they could find out where they were and in which direction they were going. ? This method worked well at night as long as the weather was good and the stars could be seen. ? We can use it at any time,in any place and in any weather to find out our positian. ? GPS is a great invention that helps us explore our pla and discover where we are. Grammar 1. No one knows for 。 surprised C. surprised。 b. treat … as … 以 …… 方式對(duì)待 …… /把 …… 看做 …… Grammar 7. be meant to do sth. 應(yīng)該做某事 8. in the medical field 在醫(yī)學(xué)領(lǐng)域 field 有“學(xué)科，領(lǐng)域，專(zhuān)業(yè)”等含義 9. make a contribution /contributions to … 為 …… 做貢獻(xiàn) . 注意： make a contribution /contributions to doing sth 10. have an effect/ effects on … 對(duì) …… 有影響 Grammar I think the police are meant to protect people. He made great contributions to science. We should make a contribution to protecting the environment. Playing puter games too much has a bad effect on health. …direction 按 /朝 …… 方向 . A motor bike hit a truck in the opposite direction. 12. work well 奏效；起作用 . The medicine worked well. 13 .as long as 只要； 長(zhǎng)達(dá) . You can go out to play as long as you finish your homework. have taught English as long as nine years. Grammar be made of 由某種物質(zhì)做成 (看得出原材料，物理過(guò)程 ) be made from 由某種物質(zhì)制成 (看不出原材料，化學(xué)過(guò)程 ) be made up of 由幾部分組成 be made in 在某地 /某時(shí)制造 be made by 由某人制造 be made into 被制成 be used for 被用來(lái)做 be used to do 被用來(lái)做 be used as 被用作 used to do sth. 過(guò)去常做 be used to doing sth. 習(xí)慣于做 1 2 3 4 be made + 介詞 結(jié)構(gòu) :助動(dòng)詞 be+及物動(dòng)詞的過(guò)去分詞 ：主 語(yǔ) +was /were+ ：主語(yǔ) +was/were + not+ ： Was /Were+主語(yǔ) + 式 ：疑問(wèn)詞 W/H+was/were+subject+ed 一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài) Ⅰ .單項(xiàng)選擇 ( ) workers made great contributions ______the tall building. A. to build B. to building C. build ( ) the students are playing outside, for it’s raining. A. No one B. None C. Someone ( ) policeman warns the boys ____ on the street. A. to play B. not to play C. don’t to play ( ) 4. The little boy _____when he
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