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。根據(jù)句意,應(yīng)選A。如果人們不停止殺害熊貓,形勢不會改變。故選D。remember to do (未做);remember doing (已做)??疾榉侵^語動詞。 leaving【答案】D【解析】【詳解】句意:——杰克,記得離開臥室時把燈關(guān)掉。 leave C.turning。29.—Jack, remember ______ off the lights when _______your bedroom.OK, I won’t forget, Mom.A.turning。結(jié)合選項(xiàng)的意思和句意可知,用unless。A. if“如果”;B. unless“除非;如果不”;C. until“直到”;D. since“自從;既然”??键c(diǎn):考查連詞的用法。 A. and 和;B. until直到; C. although 盡管;D. since自從??键c(diǎn):考查連詞的用法。結(jié)合句意,牛仔褲被發(fā)明了100多年,現(xiàn)在仍然流行??疾檫B詞辨析。26.________ jeans were invented over 100 years ago, they39。本題表示“當(dāng)……時”,knock是非延續(xù)性動詞,故選C。25.— 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,你在做什么?-我在睡覺。故選A。表示結(jié)果;C. so that 以便,為了,表示目的;D. even though盡管,即使,表示條件。A. as soon as一……就……。根據(jù)句意可知,譯為“只要他們好”,引導(dǎo)條件狀語從句,故選A?!军c(diǎn)睛】if和unless引導(dǎo)的條件狀語從句主將從現(xiàn)常見的有以下幾種情況:一、條件狀語從句的主句是一般將來時,那么從句常常用一般現(xiàn)在時如:When I grow up,I’ll be a nurse and look after patients我長大后要當(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)在時如:Don’t laugh at me when I make a mistake.我犯錯誤的時候不要笑話我.三、如果主句是含有情態(tài)動詞的一般現(xiàn)在時,根據(jù)需要從句多用現(xiàn)在進(jìn)行時如:You should be quiet when you are in the reading room在閱覽室時應(yīng)保持安靜23.- What’s your opinion about friends?- They are like books. We don’t need a lot of them they’re good.A.a(chǎn)s long as B.a(chǎn)s soon as C.so that D.a(chǎn)s if【答案】A【解析】【詳解】句意“關(guān)于朋友,你的觀點(diǎn)是什么?他們像書,只要他們好,我們不需要太多”。In用在一天中的上午,下午或晚上,用在季節(jié),月份。22.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,請給我打電話。(引導(dǎo)讓步狀語從句);(引導(dǎo)條件狀語從句);(引導(dǎo)條件狀語從句)。s go climbing Langshan Mountain this Saturday __________ the weather is fine.Good idea!A.though B.if C.unless【答案】B【解析】【詳解】句意“如果天氣好,周六我們?nèi)ヅ缻~山吧。根據(jù)生活常識,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)條件狀語從句,故答案為B。20.In summer, fo