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is own , ______ he is only four years old.A.if B.though C.for D.since【答案】B【解析】句意:小杰克自己學(xué)會(huì)了做許多事情,盡管他只有四歲。A. if 如果; B. though 盡管 C. for 因?yàn)?,為了? D. since自從;根據(jù)Little Jack has learned to do lots of things on his own , 和he is only four years ,所以用 though 引導(dǎo)讓步狀語(yǔ)從句;故選B42.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。43. Square Dancing is good exercise for the old, sometimes it makes a lot of noise.A.IfB.AlthoughC.UntilD.Because【答案】B【解析】【詳解】句意:雖然廣場(chǎng)舞對(duì)老年人來(lái)說(shuō)是很好的運(yùn)動(dòng),但有時(shí)也會(huì)制造很大的噪音。A. If連詞,如果,引導(dǎo)條件狀語(yǔ)從句;B. Although連詞,雖然、即使,引導(dǎo)讓步狀語(yǔ)從句;C. Until連詞,直到,引導(dǎo)時(shí)間狀語(yǔ)從句。D. Because連詞,因?yàn)?,引?dǎo)原因狀語(yǔ)從句。根據(jù)前后文之間的“讓步”關(guān)系可知,選用although。故選:B。44.I39。m sure dreams don39。t work you do.A.if B.until C.when D.since【答案】B【解析】【詳解】句意:我相信夢(mèng)想在你做之前是不會(huì)實(shí)現(xiàn)的??疾檫B詞辨析。if如果,表?xiàng)l件;until直到,表時(shí)間,多與not連用表示“直到……才”;when什么時(shí)候,表時(shí)間;since自從,用于表示一段時(shí)間。本句是“not …until”結(jié)構(gòu),根據(jù)句意結(jié)構(gòu)和語(yǔ)境,可知選B。45.If the singer ______ to Zigong ______ September 20th, please call me.A.will get;on B.gets;onC.gets;in【答案】B【解析】【詳解】句意:如果歌手9月20日到自貢,請(qǐng)給我打電話。if引導(dǎo)的條件狀語(yǔ),時(shí)態(tài)要滿足“主祈從現(xiàn)”,所以第一空是一般現(xiàn)在時(shí)態(tài),主語(yǔ)單數(shù),謂語(yǔ)動(dòng)詞變第三人稱單數(shù)用gets;表示具體某一天用介詞on。In用在一天中的上午,下午或晚上,用在季節(jié),月份。根據(jù)題意,故選B?!军c(diǎn)睛】if和unless引導(dǎo)的條件狀語(yǔ)從句主將從現(xiàn)常見的有以下幾種情況:一、條件狀語(yǔ)從句的主句是一般將來(lái)時(shí),那么從句常常用一般現(xiàn)在時(shí)如:When I grow up,I’ll be a nurse and look after patients我長(zhǎng)大后要當(dāng)一名護(hù)士,照顧病人二、如果主句是祈使句,那么從句通常要用一般現(xiàn)在時(shí)如:Don’t laugh at me when I make a mistake.我犯錯(cuò)誤的時(shí)候不要笑話我.三、如果主句是含有情態(tài)動(dòng)詞的一般現(xiàn)在時(shí),根據(jù)需要從句多用現(xiàn)在進(jìn)行時(shí)如:You should be quiet when you are in the reading room在閱覽室時(shí)應(yīng)保持安靜46.________ 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周圍。第一個(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。47.The environment will be much worse ___________ everyone has a sense of protecting it.A.unless B.if C.so that【答案】A【解析】【詳解】句意:除非每個(gè)人都有保護(hù)環(huán)境的意識(shí),否則環(huán)境會(huì)更糟??疾檫B詞辨析。unless除非,表?xiàng)l件,相當(dāng)于if not;if如果,表?xiàng)l件;so that以便于,表目的。本句是條件狀語(yǔ)從句,根據(jù)句意語(yǔ)境,可知if不合句意,故選A。48.In summer, food will go bad quickly ________ we put it into a fridge.A.if B.unless C.a(chǎn)s soon as D.while【答案】B【解析】【詳解】句意:夏天,除非我們把食物放進(jìn)冰箱里,否則食物很快就會(huì)變壞。A. if如果;B. unless除非;C. as soon as一……就;D. while正當(dāng)……的時(shí)候。根據(jù)生活常識(shí),在夏天只有放在冰箱里的食物才能保證不變質(zhì),unless除非,如果不,相當(dāng)于if not,引導(dǎo)條件狀語(yǔ)從句,故答案為B。49.I’m afraid ebooks might be bad for our eyes.Hmm, but they will be helpful for us_________we put them to good use.A.a(chǎn)s soon as B.a(chǎn)s long as C.even though D.so that【答案】B【解析】【詳解】句意“恐怕電子書對(duì)我們的眼睛有害。但是只要我們合理使用他們,他們就對(duì)我們有幫助”。……就……(引導(dǎo)時(shí)間狀語(yǔ)從句);(引導(dǎo)條件狀語(yǔ)從句);(引導(dǎo)讓步狀語(yǔ)從句);,為的是(引導(dǎo)目的狀語(yǔ)從句)。根據(jù)句意可知,譯為“只要我們合理使用他們”,表示條件,故選B。50.—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(huì)取得好成績(jī)。A. if如果; B. because因?yàn)椋?C. unless除非; D. after在……之后,根據(jù)句意此題選C??键c(diǎn):考查連詞的用法