【正文】
。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。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。30.I39。本句是時(shí)間狀語(yǔ)從句,可排除CD兩項(xiàng)??疾檫B詞辨析題。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(lái),我就更容易去上班了。(引導(dǎo)讓步狀語(yǔ)從句);(引導(dǎo)原因狀語(yǔ)從句);(引導(dǎo)條件狀語(yǔ)從句);,但是(后加逗號(hào))。故選B。表示條件;,表示相反的條件;,表示原因;,表示時(shí)間的起點(diǎn);既然,表示原因。27.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(lái)越少的老虎。When當(dāng)……的時(shí)候;while當(dāng)……的時(shí)候;before 在……之前; after在……之后。根據(jù)句意語(yǔ)境,可知選A。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(yǔ)從句,后空需用that引導(dǎo)。 that【答案】A【解析】【詳解】句意:她對(duì)他所做的事非常生氣,一句話也沒(méi)說(shuō)就走了出去。 what C.what 。 25.She was so angry at ______he was doing ______she walked out without a word.A.what。A. If 如果,引導(dǎo)條件狀語(yǔ)從句;B. Since 由于,引導(dǎo)原因狀語(yǔ)從句;C. Although 盡管,雖然,引導(dǎo)讓步狀語(yǔ)從句;D. Because 因?yàn)椋龑?dǎo)原因狀語(yǔ)從句。根據(jù)句意可知選B??疾檫B詞。23.—We can’t be successful ________ we keep working hard. —I agree with you.A.if B.unless C.because D.when【答案】B【解析】【詳解】句意:——除非我們堅(jiān)持努力工作,我們不能成功。結(jié)合句意,故選B。22.Our world will get better and better each of us lives a greener life.A.before B.if C.though D.until【答案】B【解析】試題分析:句意:如果我們每一個(gè)人都過(guò)更綠色的生活,那么我們的世界將會(huì)變的越來(lái)越好。A. as long as只要,引導(dǎo)條件狀語(yǔ)從句;B. as soon as一……就……,引導(dǎo)時(shí)間狀語(yǔ)從句;C. now that既然,表原因;D. so that以便,引導(dǎo)目的狀語(yǔ)從句或結(jié)果狀語(yǔ)從句。21.You’d better take the map with you ________ you won’t get lost.A.a(chǎn)s long as B.a(chǎn)s soon as C.now that D.so that【答案】D【解析】【詳解】句意:你最好帶上這張地圖,目的是為了不迷路。各種年齡的人都可以挑戰(zhàn)自己。本題考查連詞的用法。19.Little Jack