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s_________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“恐怕電子書對我們的眼睛有害。但是只要我們合理使用他們,他們就對我們有幫助”?!汀ㄒ龑?dǎo)時(shí)間狀語從句);(引導(dǎo)條件狀語從句);(引導(dǎo)讓步狀語從句);,為的是(引導(dǎo)目的狀語從句)。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。12.Daming hasn39。t done much exercise _______ he got his puter.A.when B.if C.though D.since【答案】D【解析】試題分析:句意:自從有了電腦,大衛(wèi)就沒有做許多運(yùn)動(dòng)了。A. when當(dāng)……時(shí);指時(shí)間;B. if如果,表示條件;C. though雖然,盡管,表示讓步;D. since自從,表示時(shí)間的起點(diǎn)。不鍛煉是從有電腦開始的,表示時(shí)間的起點(diǎn),用since。故選D??键c(diǎn):考查連詞辨析。13.She stopped talking her mother came into the room.A.a(chǎn)s soon as B.unless 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,她就停止了說話;故選A14.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(shí)候; C. when當(dāng)時(shí)候; D. why為什么;notuntil 直到才;故選A15.What a mess! The sharing bikes are thrown everywhere.Let’s collect and put them in the right place they can be used conveniently.A.unless B.so that C.because D.so long as【答案】B【解析】句意:——真是一團(tuán)糟!共享自行車到處都是?!屛覀儼阉鼈兪占饋矸旁诤线m的地方,這樣它們就可以方便地使用了。A. unless除非;B. so that以便;C. because因?yàn)?;D. so long as只要。結(jié)合句意可知,此處是so that引導(dǎo)的目的狀語從句,答案為B。16.Henry will give us a report as soon as he _______.A.a(chǎn)rrives B.a(chǎn)rrived C.is arriving D.will arrive【答案】A【解析】【詳解】句意:亨利一到,他就要給我們做一個(gè)報(bào)告。當(dāng)主句描述將來動(dòng)作時(shí),英語條件狀語從句中用一般現(xiàn)在時(shí)態(tài)表示將來的動(dòng)作;主語單三,謂語動(dòng)詞用單數(shù)形式;故選A。17.— What were you doing ______ I knocked at the door?— I was sleeping.A.unless B.onceC.when D.while【答案】C【解析】【詳解】試題分析:句意:-我敲門時(shí),你在做什么?-我在睡覺。A.unless如果不,除非;引導(dǎo)條件狀語從句;B.once一旦……,引導(dǎo)條件狀語從句;C.when當(dāng)……時(shí),表示兩個(gè)動(dòng)作同時(shí)發(fā)生,主句一般使用過去時(shí),從句使用過去進(jìn)行時(shí);D.while當(dāng)……時(shí),表示兩個(gè)動(dòng)作同時(shí)發(fā)生,后跟延續(xù)性動(dòng)詞,從句一般使用進(jìn)行時(shí)態(tài),表示一段時(shí)間。本題