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,從句一般使用進(jìn)行時(shí)態(tài),表示一段時(shí)間。本題表示“當(dāng)……時(shí)”,knock是非延續(xù)性動詞,故選C??键c(diǎn):考查連詞辨析。25.﹣Friends are like books.﹣Yes,we don39。t need lots of them they are good.A.a(chǎn)s if B.even thoughC.a(chǎn)s long as D.a(chǎn)s far as【答案】C【解析】【詳解】句意:—朋友像書籍。是的,我們不需要太多,只要他們品質(zhì)好??疾檫B詞辨析,as if好像,even though盡管,as long as只要,as far as據(jù)……,根據(jù)句意,﹣﹣朋友就像書籍.﹣﹣是的,我們不需要太多只要他們品質(zhì)好.故選C.26.Martin and his friends didn’t eat up all the food they ordered, __ they took the rest away.A.for B.or C.so D.a(chǎn)s【答案】C【解析】【詳解】本題考查連詞的使用和區(qū)別。本題的含義為馬丁和他的朋友們不能吃完點(diǎn)購的所有食物,因此他們把剩余的帶走。So表示所以的含義,表示結(jié)果引導(dǎo)結(jié)果狀語從句,與本題的含義相符;而for表示目的為了或表示原因因?yàn)榈暮x;or表示結(jié)果否則的含義,as表示作為或當(dāng)……時(shí)候的含義,后三者與本題的含義不符,故本題選C。27.Pandas are facing danger!The situation won’t change humans stop killing.A.unless B.though C.if D.a(chǎn)fter【答案】A【解析】試題分析:句意:熊貓面臨危險(xiǎn)。如果人們不停止殺害熊貓,形勢不會改變。此題考查連詞,A如果不;B盡管;C如果;D在之后。根據(jù)句意,應(yīng)選A??键c(diǎn):考查連詞。28.She was so angry at ______he was doing ______she walked out without a word.A.what。 that B.that 。 what C.what 。 what D.that 。 that【答案】A【解析】【詳解】句意:她對他所做的事非常生氣,一句話也沒說就走了出去??疾橘e語從句和結(jié)果狀語從句。本句整體是so…that結(jié)構(gòu),表示“如此……以致于……”,引導(dǎo)結(jié)果狀語從句,后空需用that引導(dǎo)。同時(shí),what he was doing又做了介詞 at的賓語,是賓語從句;而設(shè)空處做從句動詞do的賓語,that無實(shí)義,需用what引導(dǎo)。根據(jù)句意語境,可知選A。29.It has been much easier for me to go to work________ shared bikes appeared.But they also caused plenty of problems.A.since B.before C.unless D.though【答案】A【解析】句意:——自從共用自行車出現(xiàn)以來,我就更容易去上班了。——但它們也造成了很多問題。考查連詞辨析題。A. since自從……,后接時(shí)間名詞或從句,表一段時(shí)間,用于現(xiàn)在完成時(shí);B. before在……以前,表時(shí)間;C. unless除非,表?xiàng)l件;D. though盡管,表讓步。本句是時(shí)間狀語從句,可排除CD兩項(xiàng)。根據(jù)句意結(jié)構(gòu)和語境,可知before不合句意,故選A。30.— Is everyone here today?— No, Lucy is at home ________ she has got a high fever.A.because B.if C.until D.unless【答案】A【解析】【詳解】句意:——今天大家都到齊了嗎?——沒有,露西因?yàn)榘l(fā)高燒呆在家里了。A. because因?yàn)椋籅. if如果;C. until直到……才;D. unless除非,如果不。露西呆在家里沒有來是因?yàn)榘l(fā)高燒的原因。故答案為A。