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ave up.A.a(chǎn)fter B.since C.when D.until【答案】D【解析】句意:——列奧納多直到他在《荒野求生》中才獲得奧斯卡獎(jiǎng)。——是的。對(duì)他來(lái)說(shuō)很難實(shí)現(xiàn)這個(gè)夢(mèng)想,但他從不放棄??疾檫B詞辨析題。A. after在……以后;B. since自從……;C. when當(dāng)……時(shí)候;D. until直到……才,多和not連用。本句是時(shí)間狀語(yǔ)從句,四個(gè)選項(xiàng)都可做引導(dǎo)詞;根據(jù)Leonardo didn39。t win an Oscar和答語(yǔ)中的but he never gave up.,結(jié)合句意結(jié)構(gòu)和語(yǔ)境,可知until符合句意,故選D。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(méi)開始,所以用一般將來(lái)時(shí);后面是until引導(dǎo)的時(shí)間狀語(yǔ)從句,所以要用一般現(xiàn)在時(shí)代替一般將來(lái)時(shí)。所以選C??键c(diǎn):考查動(dòng)詞時(shí)態(tài)。15._______ you do in the future, you should try your best to do it well.A.However B.Whenever C.Whoever D.Whatever【答案】D【解析】試題分析:句意:無(wú)論你將來(lái)做什么,你都應(yīng)該盡你的最大努力把它做好。however 然而,無(wú)論怎樣;whenever 無(wú)論什么時(shí)候;whoever 無(wú)論是誰(shuí);whatever 無(wú)論什么。根據(jù)句意可知,這里表示無(wú)論你做什么,所以應(yīng)該用whatever??键c(diǎn):考查連詞。16.It has been much easier for me to go to work________ shared bikes appeared.But they also caused plenty of problems.A.since B.before C.unless D.though【答案】A【解析】句意:——自從共用自行車出現(xiàn)以來(lái),我就更容易去上班了?!鼈円苍斐闪撕芏鄦?wèn)題??疾檫B詞辨析題。A. since自從……,后接時(shí)間名詞或從句,表一段時(shí)間,用于現(xiàn)在完成時(shí);B. before在……以前,表時(shí)間;C. unless除非,表?xiàng)l件;D. though盡管,表讓步。本句是時(shí)間狀語(yǔ)從句,可排除CD兩項(xiàng)。根據(jù)句意結(jié)構(gòu)和語(yǔ)境,可知before不合句意,故選A。17.—____ the workers are very tired, _____they keep on working. — They are great. We must learn from them.A.Because。 / B.Though。 / C.Because。 so D.Though。 but【答案】B【解析】試題分析:句意:盡管工人們很累了,但他們?nèi)匀焕^續(xù)工作?!麄兲珎ゴ罅?,我們應(yīng)該向他們學(xué)習(xí)。本題考查連詞的用法。Because用于表示因果關(guān)系,不能與so同時(shí)使用;Though用于表示轉(zhuǎn)折關(guān)系,不能與but同時(shí)使用。結(jié)合句意,故選B.考點(diǎn):考查連詞的用法。18.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(lái),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(guò)去時(shí);will tell一般將來(lái)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(lái)時(shí)態(tài),可知主句時(shí)態(tài)是一般將來(lái)時(shí)。故選C。19.They will lose the gam