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他密碼甚至我的爸爸都不能使用它。when當(dāng)…時(shí)候;unless除非,如果不;while當(dāng)…時(shí)候;if如果。根據(jù)句意my father can39。t use it…可知,這里應(yīng)表示“不告訴他密碼”,故應(yīng)選B。12.In summer, food will go bad quickly ________ we put it into a fridge.A.if B.unless C.a(chǎn)s soon as D.while【答案】B【解析】【詳解】句意:夏天,除非我們把食物放進(jìn)冰箱里,否則食物很快就會(huì)變壞。A. if如果;B. unless除非;C. as soon as一……就;D. while正當(dāng)……的時(shí)候。根據(jù)生活常識(shí),在夏天只有放在冰箱里的食物才能保證不變質(zhì),unless除非,如果不,相當(dāng)于if not,引導(dǎo)條件狀語(yǔ)從句,故答案為B。13.I think you’ll miss the train ________ you hurry up.A.if B.a(chǎn)nd C.unless【答案】C【解析】【詳解】句意“除非你快點(diǎn),否則你將錯(cuò)過(guò)這個(gè)火車(chē)”。(引導(dǎo)條件狀語(yǔ)從句);(表示并列);(引導(dǎo)條件狀語(yǔ)從句)。根據(jù)句意可知,表示“除非你快點(diǎn)”,故選C。14._______riding shared bikes is an easy way to travel, it also causes some problems.A.Although B.If C.Until【答案】A【解析】【詳解】句意:雖然騎共享單車(chē)是一種簡(jiǎn)單的旅行方式,但也會(huì)引起一些問(wèn)題。A. Although盡管,雖然;B. If如果;C. Until直到。根據(jù)下文it also causes some 。根據(jù)題意,故選A。15.Helendidn39。tknowanythingaboutit_______herfathertoldher.A.if B.because C.a(chǎn)fter D.until【答案】D【解析】【詳解】句意:直到她的父親告訴她,她才知道關(guān)于它的一些事情??疾檫B詞辨析。if是否,如果;because因?yàn)?;after在......之后;until直到。短語(yǔ)not ...until...意為“直到......才......”,故選D。16.I’ll go to visit my aunt in England _______ the summer holiday starts.A.while B.since C.until D.a(chǎn)s soon as【答案】D【解析】【詳解】句意:暑假一開(kāi)始,我就要去看望我在英國(guó)的姑姑??疾檫B詞辨析。A.while正當(dāng)……的時(shí)候;B.since因?yàn)?;C.until 直到;D.a(chǎn)s soon as一……就……。此處是時(shí)間狀語(yǔ)從句, 據(jù)題意,故選D。17.He didn’t go to school yesterday _______ he was ill.A.because B.because of C.if D.so【答案】A【解析】【詳解】句意:他昨天沒(méi)去上學(xué),因?yàn)樗×?。本題的含義是昨天他沒(méi)有去上學(xué),“他病了”應(yīng)該是他沒(méi)上學(xué)的原因,because后跟原因從句,because of后跟單詞或短語(yǔ),if如果后接條件狀語(yǔ)從句,so因此。故選A。18. Talk to your teacher and you will get help ________ you have a problem.A.unless B.ifC.until D.so【答案】B【解析】試題分析:unless除非,如果不; if是否,如果;until直到;So因此。句意:如果你有問(wèn)題,給你的老師說(shuō)說(shuō),你就會(huì)得到幫助。故選B。考點(diǎn):考查連詞辨析19.— Harry Potter is an interesting novel I want to read it again.— I agree with you.A.so。 that B.too。 to C.such。 th