2017高考英語一輪復習Unit 15-Unit 17
(4)當從句中有not do sth.yet時。 i suppose they haven’t come back yet. 我猜他們還沒回來。練：i don’t expect you can finish the work in three days,________?a.don’t i b.do i c.can you d.can’t you提示:本題考查否定轉移結構中的反意疑問句。在否定轉移的句子中，主句的主語是第一人稱時，反意疑問句應根據賓語從句而定，若為其他人稱，則隨主句而定。答案:c2.表示“價值；花費”的句型講：注意觀察下面教材原句:it was worth five hundred francs at most.它至多值500法郎。it cost us thirty-six thousand francs.它花了我們三萬六千法郎。a new dress costs over four hundred francs.一件新的晚禮服要花四百多法郎。例：how much did it cost to build the bridge?建這座橋花費了多少錢？it will cost you 500 dollars to repair the car.修理這部汽車你要花費500美元。such a difficult job costs a lot of time and effort.這么困難的工作需要耗費極多的時間和精力。鏈接·提示 (1)be worth+money與sth.+cost+money的意思相同，表示“某樣東西值多少錢”，而sth.cost sb.+money表示“某種東西花了某人多少錢”。 (2)表示“花費”的句型還有: ①sb.+spend+money/time+on sth./(in)doing sth.； ②sb.+pay money+for sth.； ③it takes sb.some time to do sth.； ④sb.pay money for sth.； ⑤sb.buy sth.for money i spent my summer vacation(in)reading and fishing. 我的暑假是在看書和釣魚中度過的。 it takes us thirty minutes to walk from here to the station. 我們從這里步行去車站要30分鐘。 (3)be worth doing表示“……值得……”，該結構中需要用主動形式表示被動意思。 this book is well worth reading. 這本書很值得一讀。練：(1)—it will________ determination and hard work to master a foreign language.—there is no doubt about it.a.spend b.cost c.pay d.take提示:it是形式主語，動詞不定式是真正的主語。故選d。答案：d(2)how long did you ________ cleaning your room yesterday?