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。根據(jù)句意可知,此句是結(jié)果狀語從句,such是形容詞,修飾名詞;so是副詞,與形容詞或副詞連用。本題第一空所填詞要修飾形容詞tired,所以應(yīng)填so,故選C。19.一When did you leave your office yesterday? 一 I finished the project.A.Until B.While C.When D.Not until【答案】D【解析】句意:昨天你什么時候離開你的辦公室的?——直到我完成那個任務(wù)。本題考查連詞。A. Until 直到時候才結(jié)束,要與延續(xù)性動詞連用;B. While 當(dāng)時候 ;C. When 當(dāng)時候;D. Not until直到時候才開始,與非延續(xù)性動詞連用;句子中finished(完成)是非延續(xù)性動詞,故選D20.(題文)I’m sure that you will succeed in the end ___________ you give up halfway.A.until B.till C.unless D.a(chǎn)lthough【答案】C【解析】試題分析:句意:如果你不半途放棄,我肯定你最終會成功的。A. until直到,表示時間;B. till 直到,表示時間;C. unless如果不,除非,表示條件;D. although雖然,盡管。表示讓步。如果不放棄,就會成功。故選C??键c:考查連詞用法辨析。21.Mom, shall we have supper now?Oh, we won’t have supper_______ your dad es back.A.until B.since C.while D.a(chǎn)fter【答案】A【解析】試題分析:句意:媽媽,我們現(xiàn)在吃晚飯好嗎? 哦,直到你爸爸回來我們才可以吃晚飯。until直到;since自從;while當(dāng)……的時候;after在……之后。Not…until直到……才,是一個固定句型,所以選A??键c:考查連詞。22.I won39。t go he es back.A.until B.while C.when D.why【答案】A【解析】句意:直到他回來,我才走。A. until 直到; B. while當(dāng)時候; C. when當(dāng)時候; D. why為什么;notuntil 直到才;故選A23. Lucy knew nothing about it _____ her sister told her.A.because B.until C.if D.since【答案】B【解析】試題分析:句意:露西直到她姐姐告訴她才知道這件事。Because因為; until直到; if如果; since自從。Notuntil直到才,是一個固定句型。所以選B??键c:考查連詞。24.—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。直到鈴聲響了才會開始。前面是主句,會議還沒開始,所以用一般將來時;后面是until引導(dǎo)的時間狀語從句,所以要用一般現(xiàn)在時代替一般將來時。所以選C??键c:考查動詞時態(tài)。25.—Have you heard of the latest news about WIFI?—Yes. When the 5G age , the Internet speed will be 100 times as high as 4G.A.e B.es C.will e D.is ing【答案】B【解析】【詳解】句意:——你聽說過無線網(wǎng)絡(luò)的最新消息嗎?——是的。到了5G時代,網(wǎng)速將是4G的100倍。A. e動詞原形; B. es第三人稱單數(shù)形式; C. will e一般將來時態(tài); D. is ing現(xiàn)在進(jìn)行時態(tài),此句是when引導(dǎo)的時間狀語從句,遵循主將從現(xiàn)的原則,此空應(yīng)填謂語動詞的第三人稱單數(shù)形式,此空故填es。26.—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.a(chǎn)fter【答案】C【解析】試題分析:句意:這些天我忙著學(xué)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(jù)句意此題選C??键c:考查連詞的用法27.—Did you catch the early bus this morning? —Yes. The bus started to move _ I got on it.A.though B.before C.a(chǎn)s soon as D.a(chǎn)s if【答案】C【解析】句意:你今天早上趕上早班車了嗎?——是的。我一上車,車就開動了。though盡管,引導(dǎo)讓步狀語從句;before在……之前,不符合對話的意思;as soon as一……就;as if猶如,好像。結(jié)合下面的回答Yes,說明說話人趕上了早班車,所以選C。28.They will lose the game _______ they try their best.A.unless B.once C.since D.a(chǎn)fter【答案】A【解析】【詳解】試題分析:句意:他們會輸?shù)舯荣惖模撬麄儽M自己最大的努力。lose the game 輸?shù)舯荣?,try one’s best 盡最大的努力。 A. unless 除非; B. once 一次;C. since 因為; D. after 在…之后,根據(jù)題意可知此句是unless引導(dǎo)的條件狀語從句,故選A。29.(題文)— Did you win the game yesterday?— Not really. ______we all tried our best, we lost it.A.If B.Though C.Unless【答案】B【解析】試題分析:句意:你昨天贏了比賽了嗎?沒有,我們都盡了最大努力,但是還是輸了比賽。A.If如果; B.Though雖然,盡管; C.Unless除非。根據(jù)句意故選B。考點:考查連詞辨析。30.No matter _____________