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C.though【答案】A【解析】句意:她媽媽一進(jìn)到房間里,她就停止了說(shuō)話。A. as soon as 一就; B. unless 除非; C. though盡管;這里是考察連詞,根據(jù)She stopped talking 和her mother came into the ,可知是媽媽一進(jìn)到房間里,她就停止了說(shuō)話;故選A41.______ many children like KFC, I think they’d better try not to eat it too often.A.Because B.When C.Although D.If【答案】C【解析】考查從句的知識(shí)。句意“盡管很多孩子喜歡吃KFC,單數(shù)我認(rèn)為他們最好不要經(jīng)常吃。”because引導(dǎo)原因狀語(yǔ)從句;when引導(dǎo)時(shí)間狀語(yǔ)從句;although引導(dǎo)讓步狀語(yǔ)從句;if引導(dǎo)條件狀語(yǔ)從句。題目表示的是讓步。故選C。42.________ I came back home yesterday, my mother was looking ________ a magazine.A.While。 through B.When。 through C.When。 around【答案】B【解析】【詳解】句意:昨天當(dāng)我回到家的時(shí)候,我的媽媽正在瀏覽一本雜志。While當(dāng)…時(shí)候,引導(dǎo)時(shí)間狀語(yǔ)從句,從句中的謂語(yǔ)動(dòng)詞應(yīng)該是延續(xù)性的;When當(dāng)…時(shí)候,引導(dǎo)時(shí)間狀語(yǔ)從句,從句中謂語(yǔ)動(dòng)詞可以是延續(xù)性的,也可以是瞬間性的;through穿過(guò),通過(guò);around周?chē)5谝粋€(gè)空后came back是瞬間性動(dòng)詞,故不能用while引導(dǎo),排除A。look through瀏覽;look around向四周看,根據(jù)句意可知應(yīng)該是“瀏覽雜志”,故選B。43.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。44.Wedidn39。tcutthecake______Amymadeawish. A.because B.until C.if【答案】B【解析】【詳解】句意:直到艾米許了愿,我們才切蛋糕。A. because因?yàn)椋籅. until直到;C. if如果。didn’t是did not的縮寫(xiě)。not until直到……才。結(jié)合句意可知,答案為B。45.If you study hard, you ________ into a good senior high school.A.got B.will get C.get【答案】B【解析】【詳解】考查條件狀語(yǔ)從句時(shí)態(tài)的用法。句意:如果你努力學(xué)習(xí),你_______進(jìn)入一個(gè)好點(diǎn)的高中。A. got 表示一般過(guò)去時(shí);B. will get 是一般將來(lái)時(shí);C. get 是一般現(xiàn)在時(shí)。連詞if引導(dǎo)的條件狀語(yǔ)從句中,主句是一般將來(lái)時(shí),條件狀語(yǔ)從句用一般現(xiàn)在時(shí)表示將來(lái)的動(dòng)作。由句意可知,主句是將來(lái)發(fā)生的動(dòng)作,用一般將來(lái)時(shí),故選B。46._______it’s a public holiday today, some firefighters in our city are still on duty.A.Although B.Once C.If【答案】A【解析】【詳解】句意“盡管今天是公共節(jié)假日,但是我們城市的一些消防員仍然在崗位值班”。(引導(dǎo)讓步狀語(yǔ)從句);……就……(引導(dǎo)時(shí)間狀語(yǔ)從句);(引導(dǎo)條件狀語(yǔ)從句)。根據(jù)句意可知,今天是公共假日,本應(yīng)該休息,但是消防員仍然在崗值班,表示讓步,故選A。47.Our eyesight will bee poorer and poorer we keep playing with phones.A.though B.unless C.if【答案】C【解析】【詳解】句意:如果我們繼續(xù)玩手機(jī),我們的視力會(huì)越來(lái)越差。A. though盡管,雖然;B. unless除非;C. if如果。這里是if引導(dǎo)的條件狀語(yǔ)從句,遵循主句用一般將來(lái)時(shí),從句用一般現(xiàn)在時(shí)態(tài),根據(jù)題意,故選C。48.—____ 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。49.Our teachers have been with us for nearly three years we came to junior high school. We should thank them for what they have done for us.A.until B.before C.since D.while【答案】C【解析】句意:自從我們來(lái)到初中,我們的老師們已經(jīng)和我們?cè)谝黄饘⒔炅耍覀儜?yīng)該感謝他們?yōu)槲覀兯龅囊磺?。本題考查連詞詞義辨析。A. until 直到才 B. before 在之前 C. since自從 D. while當(dāng)時(shí)候。這里是since引導(dǎo)的時(shí)間狀語(yǔ)從句,主句用現(xiàn)在完成時(shí)態(tài),從句用一般過(guò)去時(shí)態(tài),其他不符合題意,故選C。50.When you are in your school dining hall during lunchtime, you may feel lonely _______ you can find someone to have lunch with.A.if B.unlessC.a(chǎn)fter D.because【答案】B【解析】【分析】【詳解】句意:當(dāng)你在學(xué)校食堂吃午飯的時(shí)候,你可能會(huì)感到孤獨(dú),除非你能找個(gè)人一起吃午飯??疾檫B詞用法辨析。if如果,unless除非,都表?xiàng)l件;after表時(shí)間,because表原因。本句前后句是條件關(guān)系,可排除CD兩項(xiàng)。根據(jù)句意可知if不合句意,故選B。