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根據(jù)句意可知,因為沒有明顯的證據(jù),且這個理由很重要,所以人們認為他沒有犯搶劫罪,故選C。30._____there was no obvious evidence, most people didn’t think he was guilty of the robbery.A.When B.While C.Since D.As【答案】C【解析】【詳解】句意“由于沒有明顯的證據(jù),大多數(shù)人認為他沒有犯搶劫罪”。A. unless除非,引導(dǎo)條件狀語從句;B. until直到……才……,引導(dǎo)時間狀語從句;C. since由于,引導(dǎo)原因狀語從句;D. although盡管,引導(dǎo)讓步狀語從句。29.“A white elephant” means something that is useless, ___________ it may cost a lot of money.A.unless B.until C.since D.a(chǎn)lthough【答案】D【解析】【詳解】句意:“白象”指的是無用的東西,盡管它可能要花很多錢。lose the game 輸?shù)舯荣?,try one’s best 盡最大的努力。故選C。27. Tom failed in the exam ag ain ______ he tried his best.A.if B.unless C.though D.because【答案】C【解析】試題分析:句意:盡管他盡了最大努力,湯姆在考試中又不及格。在“so…that”結(jié)構(gòu)中,如果so后面有名詞,順序是“so+形容詞+a /an+名詞”,例如:so nice a girl;在“such…that”結(jié)構(gòu)中,順序是“such+ a /an+形容詞+名詞”,例如:such a nice girl。根據(jù)題意,故選C。根據(jù)上文the tourists didn39。t leave the hotel ________ the heavy rain stopped.A.if B.because C.until D.whenever【答案】C【解析】【詳解】句意:沒有雨傘,游客們直到大雨停了才離開旅館??键c:考查連詞的用法。A. before在……之前,引導(dǎo)時間狀語從句;B. if 如果,引導(dǎo)條件狀語從句;C. though 盡管,雖然,引導(dǎo)讓步狀語從句;D. until直到……引導(dǎo)時間狀語從句。根據(jù)句子前后意思的對比,可知孩子喜歡吃甜巧克力和對健康不好兩者構(gòu)成一種讓步關(guān)系,表示盡管知道這樣做不好但仍然這樣去做,結(jié)合選項只有although有這種含義,后面引導(dǎo)一個讓步狀語從句,故答案選D??疾閺膶龠B詞辨析。22.Little Jack has learned to do lots of things on his own , ______ he is only four years old.A.if B.though C.for D.since【答案】B【解析】句意:小杰克自己學(xué)會了做許多事情,盡管他只有四歲。如:I will tell him about it when he es. 他來的時候,我會告訴他這件事的。【點睛】“主將從現(xiàn)”說的是在含有時間狀語從句和條件狀語從句的主從復(fù)合句中,如果主句的時態(tài)是一般將來時,那么從句要用一般現(xiàn)在時。21.I will call you as soon as he______ here.A.a(chǎn)rrive B.will arrive C.a(chǎn)rrives D.a(chǎn)rrived【答案】C【解析】【詳解】句意:他一到這里我就給你打電話。根據(jù)前后文之間的“讓步”關(guān)系可知,選用although。A. If連詞,如果,引導(dǎo)條件狀語從句;B. Although連詞,雖然、即使,引導(dǎo)讓步狀語從句;C. Until連詞,直到,引導(dǎo)時間狀語從句??键c:考查連詞的用法。A. unless如果不,除非,引導(dǎo)條件狀語從句; B. until 直到,引導(dǎo)時間狀語從句; C.