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as in the US, I made a lot of American friends.A.While B.Although C.Unless D.Until【答案】A【解析】【詳解】句意:當(dāng)我在美國的時(shí)候,我交了很多美國朋友??疾檫B詞辨析。while當(dāng)……的時(shí)候,表時(shí)間;although盡管,表讓步;unless除非,表?xiàng)l件,相當(dāng)于if not;until直到,與not連用表示“直到……才”。根據(jù)I made a lot of American friends我交了很多美國朋友,可知是在美國的時(shí)候,故選A。13.Betty you the answer as soon as she works it out later.A.tells B.told C.will tell D.is telling【答案】C【解析】【詳解】句意:貝蒂之后一算出來,她就會(huì)告訴你答案??疾闀r(shí)態(tài)。tells告訴,一般現(xiàn)在時(shí);told一般過去時(shí);will tell一般將來時(shí);is telling現(xiàn)在進(jìn)行時(shí)。as soon as表示“一……就……”。由as soon as引導(dǎo)的從句需要用一般現(xiàn)在時(shí)態(tài)代替將來時(shí)態(tài),可知主句時(shí)態(tài)是一般將來時(shí)。故選C。14.—I’m afraid the class has begun.—Don’t worry. It ________ until the bell ________.A.doesn’t begin。 rings B.won’t begin。 will ringC.won’t begin。 rings D.doesn’t begin。 will ring【答案】C【解析】試題分析:句意:恐怕課已經(jīng)開始了。一不要擔(dān)心。直到鈴聲響了才會(huì)開始。前面是主句,會(huì)議還沒開始,所以用一般將來時(shí);后面是until引導(dǎo)的時(shí)間狀語從句,所以要用一般現(xiàn)在時(shí)代替一般將來時(shí)。所以選C。考點(diǎn):考查動(dòng)詞時(shí)態(tài)。15.WeChat Pay makes our lives confident. ______ we want to pay for something, we just need to scan a QR code (掃描二維碼).A.When B.After C.Unless D.Until【答案】A【解析】【詳解】A 本題考查連詞辨析。句意:微信支付使我們的生活方便。當(dāng)我們想為某物付錢時(shí),我們只需要掃描二維碼。A. When當(dāng)……時(shí)候; B. After在……以后; C. Unless除非; D. Until到……為止。綜合句意可知,掃描二維碼指的是當(dāng)我們付錢時(shí)的動(dòng)作,用關(guān)系副詞when。故鄉(xiāng)A。16.——Today’s young people can’t live without smart phones.——They keep their hands on the phones wherever they go, even while they meals.A.have B.a(chǎn)re havingC.were having D.will have【答案】B【解析】【詳解】句意:——今天的年輕人沒有智能手機(jī)無法生活。——他們無論走到哪里,甚至吃飯時(shí),手里都拿著手機(jī)??疾榫渥訒r(shí)態(tài)。;;;。while后跟進(jìn)行時(shí)態(tài),主句時(shí)態(tài)是一般現(xiàn)在時(shí),可知while后面的從句時(shí)態(tài)用現(xiàn)在進(jìn)行時(shí)。故選B。17.—Ling ling, you39。ll feel sleepy tomorrow _______ you go to bed early.—OK, Mom. I’ll go to bed at once.A.if B.unless C.though D.because【答案】B【解析】【詳解】句意:——玲玲,如果你不早點(diǎn)睡覺,明天你會(huì)感到困的?!玫?媽媽。我馬上去睡覺。考查連詞辨析。A. if如果,引導(dǎo)條件狀語從句;B. unless如果不、除非,相當(dāng)于if not,引導(dǎo)條件狀語從句;C. though雖然、盡管,引導(dǎo)讓步狀語從句;D. because因?yàn)?,引?dǎo)原因狀語從句。通過分析主從句之間的邏輯關(guān)系可知應(yīng)該選擇引導(dǎo)條件狀語從句的從屬連詞if或unless,再根據(jù)句子所表達(dá)的含義“如果