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20.We will go to Tian’anmen Square to watch the raising of national flag if it _________ tomorrow.A.will rain B.rainsC.doesn’t rain D.won’t rain【答案】C【解析】試題分析:句意:如果明天不下雨我們要去天安門廣場(chǎng)看升國(guó)旗。根據(jù)句意及題干分析if引導(dǎo)的是條件狀語(yǔ)從句,主句是一般將來(lái)時(shí)態(tài),根據(jù)“主將從現(xiàn)”原則,if從句中應(yīng)用一般現(xiàn)在時(shí)態(tài),根據(jù)句意是“不下雨”,所以選C?!究键c(diǎn)定位】考查動(dòng)詞的時(shí)態(tài)。21.My English teacher has taught English she came to the school.A.since B.a(chǎn)s C.when D.for【答案】A【解析】【詳解】考查連詞辨析,句意:我的英語(yǔ)老師自從來(lái)到這個(gè)學(xué)校就教英語(yǔ).結(jié)合語(yǔ)境推斷句意是我的英語(yǔ)老師自從來(lái)到這個(gè)學(xué)校就教英語(yǔ).,此句中的謂語(yǔ)動(dòng)詞用了現(xiàn)在完成時(shí),本題設(shè)空處后面的時(shí)間狀語(yǔ)從句用了一般過(guò)去時(shí),所以結(jié)合句意用現(xiàn)在完成時(shí)的標(biāo)志詞since引導(dǎo),故選A22.She eats icecream a lot, ________it isn39。t good for her.A.a(chǎn)fter B.until C.because D.a(chǎn)lthough【答案】D【解析】【詳解】句意:她經(jīng)常吃冰淇淋,雖然這對(duì)她不好??疾檫B詞辨析。A. after在……以后,表時(shí)間;B. until直到,表時(shí)間;C. because因?yàn)?,表原因;D. although盡管,表讓步。本句前后是讓步關(guān)系,需用although連接;根據(jù)句意語(yǔ)境,可知選D。23. Is Li Lei at school today? No, he is at home _____ he has a bad cold.A.until B.if C.because D.so【答案】C【解析】【詳解】句意:——李磊今天在學(xué)校嗎?——不,他在家因?yàn)樗忻傲恕. until直到;B. if如果;C. because因?yàn)?;D. so因此。根據(jù)下文he has a bad cold可知這里是表示原因。根據(jù)題意,故選C。24.The Italian woman didn’t feel a culture shock____it was her first time to Shanghai.A.though B.since C.if D.when【答案】A【解析】句意:這個(gè)意大利婦女沒(méi)有感到一種文化沖擊,盡管她是第一次來(lái)上海。A. though盡管; B. since自從; C. if 是否,如果; D. when當(dāng)時(shí)候;根據(jù)The Italian woman didn’t feel a culture shock這個(gè)意大利婦女沒(méi)有感到一種文化沖擊,和it was her first time to 引導(dǎo)讓步關(guān)系狀語(yǔ)從句;故選A25.You will lose the ability to pay attention, plan and stay active after one or two nights _____ you can sleep well.A.until B.when C.unless D.if【答案】C【解析】【詳解】句意:除非你能睡好,否則一兩個(gè)晚上之后你會(huì)失去關(guān)注、計(jì)劃和保持活力的能力。本題考查從屬連詞的用法。A. until用于肯定句中,表示主句的動(dòng)作一直持續(xù)到從句動(dòng)作發(fā)生或狀態(tài)出現(xiàn)時(shí)為止。翻譯為“直到…為止…”;B. when可用作從屬連詞,引導(dǎo)狀語(yǔ)從句,表示時(shí)間時(shí)作“當(dāng)…時(shí),在…的時(shí)候”;C. unless“除非,如果不”,在意義上相當(dāng)于if…not,因此在有些場(chǎng)合中unless與if…not可互換使用,引導(dǎo)條件狀語(yǔ)從句;D. if“如果”,引導(dǎo)條件狀語(yǔ)從句。根據(jù)句意“休息好”是“關(guān)注、計(jì)劃和保持活力的能力”的前提,故選C。26.It was the middle of the night _____the sound of the piano woke me up.A.because B.if C.when D.a(chǎn)lthough【答案】C【解析】【詳解】句意:正是半夜鋼琴聲把我吵醒了。A. because因?yàn)?;B. if如果;C. when 當(dāng)……的時(shí)候;D. although盡管,雖然。根據(jù)下文the sound of the piano woke me 。根據(jù)題意,故選C。27.“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(wú)用的東西,盡管它可能要花很多錢??疾檫B詞辨析。A. unless除非,引導(dǎo)條件狀語(yǔ)從句;B. until直到……才……,引導(dǎo)時(shí)間狀語(yǔ)從句;C. since由于,引導(dǎo)原因狀語(yǔ)從句;D. although盡管,引導(dǎo)讓步狀語(yǔ)從句。根據(jù)句意,本句是讓步狀語(yǔ)從句,故選D。28.(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(méi)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(diǎn):考查連詞辨析。29.There are fewer and fewer tigers in India. The situation will continue _______ humans stop hunting them for their fur and bones.A.if B.unless C.because D.since【答案】B【解析】試題分析:句意:印度有越來(lái)越少的老虎。如果人類不停止為了虎皮和虎骨獵殺老虎,情況會(huì)繼續(xù)。,表示條件;,表示相反的條件;,表示原因;,表示時(shí)間的起點(diǎn);既然,表示原因?!叭绻弧蓖V梗闆r會(huì)繼續(xù)。故選B??键c(diǎn):考查連詞的用法30.The two panies decided to work together ______ they had mon interest.A.because B.unless C.but D.or【答案】A【解析】【詳解】試題分析:句意:這兩家公司決定合作,因?yàn)樗麄冇泄餐睦?。前因后果,后面是表原因的狀語(yǔ)從句,用because連接。; B. unless 除非,表讓步;C. but但是,表轉(zhuǎn)折;D. or或者,表選擇。故選A??键c(diǎn):考查原因狀語(yǔ)從句的連詞 。31.________ I got back, I found my mother cooking for me.A.When