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詳解】句意:你最好帶上這張地圖,目的是為了不迷路??疾檫B詞辨析。A. as long as只要,引導條件狀語從句;B. as soon as一……就……,引導時間狀語從句;C. now that既然,表原因;D. so that以便,引導目的狀語從句或結果狀語從句。根據句意語境,帶著地圖的目的就是防止迷路,本題是目的狀語從句,故選D。19.She is so pleased with _____ he has done _____ she keeps praising him.A.what。 that B.that。 what C.that。 that【答案】A【解析】【詳解】句意:她對他所做的事情感到如此高興以至于她一直表揚他。根據句子結構可知,第一個空是賓語從句,作be pleased with的賓語,從句中done后缺少賓語,故用what引導,that引導賓語從句時,在從句中不作成分;第二個空考查的是so…that“如此……以至于……”這個句型,應用that。故選A。20.—I’m busy with my schoolwork these days.—That’s great! You won’t get good grades ______ you work hard.A.if B.becauseC.unless D.after【答案】C【解析】試題分析:句意:這些天我忙著學校工作。那太好了,除非你努力工作,否則你不會取得好成績。A. if如果; B. because因為; C. unless除非; D. after在……之后,根據句意此題選C??键c:考查連詞的用法21.Our world will get better and better each of us lives a greener life.A.before B.if C.though D.until【答案】B【解析】試題分析:句意:如果我們每一個人都過更綠色的生活,那么我們的世界將會變的越來越好。A. before在……之前,引導時間狀語從句;B. if 如果,引導條件狀語從句;C. though 盡管,雖然,引導讓步狀語從句;D. until直到……引導時間狀語從句。結合句意,故選B??键c:考查連詞的用法。22.Julie didn’t leave her office _____ the police arrived.A.however B.whenever C.while D.until【答案】D【解析】試題分析:句意: 直到警察到來,朱莉才離開辦公室. A. however然而;B. whenever無論何時;C. while而;D. until直到;根據句意,故選D。考點:考查副詞的用法。23.—Jack, remember ______ off the lights when _______your bedroom.OK, I won’t forget, Mom.A.turning。 leaving B.to turn。 leave C.turning。 left D.to turn。 leaving【答案】D【解析】【詳解】句意:——杰克,記得離開臥室時把燈關掉?!冒?,媽媽,我不會忘記的??疾榉侵^語動詞。上一句句意:杰克,離開臥室時記得關燈。remember to do (未做);remember doing (已做)。when doing 。故選D。24.___________ she couldn’t see his face, she could tell by his voice that he was young.A.Unless B.If C.Because D.Though【答案】D【解析】【詳解】句意:雖然她看不見他的臉,但是她能夠通過聲音分辨出他很年輕。A. Unless除非;B. If如果;C. Because因為;D. Though盡管。根據語境以及上下文,本題考查的是連詞的用法