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still popular among the young.A.Unless B.Though C.Since D.Until【答案】B【解析】【詳解】句意:雖然網(wǎng)上存在危險(xiǎn),但網(wǎng)上保險(xiǎn)在年輕人中仍然很流行。考點(diǎn):考查動詞時(shí)態(tài)。根據(jù)句意可知后句表示否定條件,填unless;選A?!军c(diǎn)睛】主將從現(xiàn)是指在時(shí)間狀語從句和條件狀語從句中,如果主句是一般將來時(shí),從句用一般現(xiàn)在時(shí)替代一般將來時(shí)。此題考查連詞,A如果不;B盡管;C如果;D在之后。17.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:印度有越來越少的老虎。not …until直到……才,結(jié)合句意,故選B。故選C。27.—Susan,what are the advantages of MP5 players?—Mom,they are smaller and lighter________they can be carried very easily.A.unlessB.ifC.untilD.so that【答案】D【解析】【詳解】句意:——Susan,MP5播放器的優(yōu)點(diǎn)是什么?——媽媽,他們更小、更輕,為的是方便攜帶。才,故選答案為A30.He has made great progress his mother is very pleased with him.A.so;that B.enough;to C.so;too D.such;that【答案】D【解析】【詳解】句意:他已經(jīng)取得了如此大的進(jìn)步以至于他的媽媽對他非常滿意。t cross the road the traffic lights turn green.A.until B.if C.while D.a(chǎn)s【答案】A【解析】【詳解】句意:我們要等交通信號燈變綠了才能過馬路。23.Nobody believes a 92yearold could run a marathon she passed the finishing line. People of all ages can challenge themselves.A.if B.since C.until【答案】C【解析】【詳解】句意:直到她通過終點(diǎn)線,沒有人相信一個(gè)92歲的老人能夠跑馬拉松。綜合句意可知,掃描二維碼指的是當(dāng)我們付錢時(shí)的動作,用關(guān)系副詞when。 to表示做某事足夠…… C.a(chǎn)s?!眜ntil直到;before在……之前;while表示當(dāng)……時(shí)候,after在……之后。8.We’ll go to the farm and help the farmers with the applepicking if it ______tomorrow.A.isn’t rain B.will be rainy C.doesn’t rain D.is raining【答案】C【解析】【詳解】句意:如果明天不下雨我們將會去農(nóng)場幫農(nóng)民摘蘋果?!究键c(diǎn)定位】考查動詞的時(shí)態(tài)。 ask D.won’t。3.You will fall behind others ______ you work hard.A.if B.unless C.though D.since【答案】B【解析】試題分析:句意:如果你不努力學(xué)習(xí),你會落后別人。根據(jù)句意:我們都知道如果我們不經(jīng)常鍛煉,我們將不會享有好的健康。根據(jù)句意可知,此句是條件狀語從句,動詞invite與句子的主語you之間在邏輯上存在被動關(guān)系,此空是除非,如果不的意思,此空故填Unless,故選D。根據(jù)語境以及上下文,本題考查的是連詞的用法。這里是since引導(dǎo)的時(shí)間狀語從句,主句用現(xiàn)在完成時(shí)態(tài),從句用一般過去時(shí)態(tài),其他不符合題意,故選C。考點(diǎn):考查連詞的用法18.They wi