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ose the ability to pay attention, plan and stay active after one or two nights _____ you can sleep well.A.until B.when C.unless D.if【答案】C【解析】【詳解】句意:除非你能睡好,否則一兩個晚上之后你會失去關(guān)注、計劃和保持活力的能力。A. until用于肯定句中,表示主句的動作一直持續(xù)到從句動作發(fā)生或狀態(tài)出現(xiàn)時為止。根據(jù)句意“休息好”是“關(guān)注、計劃和保持活力的能力”的前提,故選C。If引導的條件狀語從句主句用一般將來時,從句用一般現(xiàn)在時,結(jié)合語境故選C。如果人們不停止殺害熊貓,形勢不會改變。根據(jù)句意,應選A。12._______ you do in the future, you should try your best to do it well.A.However B.Whenever C.Whoever D.Whatever【答案】D【解析】試題分析:句意:無論你將來做什么,你都應該盡你的最大努力把它做好。根據(jù)句意可知,這里表示無論你做什么,所以應該用whatever。13.It’s much easier for us to bee friends________ we share similar interests.A.unless B.when C.even though D.so that【答案】B【解析】【詳解】句意:當我們分享相似的興趣愛好時,對于我們來說成為朋友更加容易一些。unless如果不,除非,引導條件狀語從句;when當……時候,引導時間狀語從句;even though盡管,引導讓步狀語從句;so that以便,因此,結(jié)果,引導目的或結(jié)果狀語從句。14._______riding shared bikes is an easy way to travel, it also causes some problems.A.Although B.If C.Until【答案】A【解析】【詳解】句意:雖然騎共享單車是一種簡單的旅行方式,但也會引起一些問題。根據(jù)下文it also causes some 。15.In summer, food will go bad quickly ________ we put it into a fridge.A.if B.unless C.a(chǎn)s soon as D.while【答案】B【解析】【詳解】句意:夏天,除非我們把食物放進冰箱里,否則食物很快就會變壞。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,相當于if not,引導條件狀語從句,故答案為B。——他們無論走到哪里,甚至吃飯時,手里都拿著手機。;;;。故選B。句意“盡管很多孩子喜歡吃KFC,單數(shù)我認為他們最好不要經(jīng)常吃。題目表示的是讓步。18.I39。t work you do.A.if B.until C.when D.since【答案】B【解析】【詳解】句意:我相信夢想在你做之前是不會實現(xiàn)的。if如果,表條件;until直到,表時間,多與not連用表示“直到……才”;when什么時候,表時間;since自從,用于表示一段時間。19. the journey was tiring,Jeff thought it was worth both the time and the money.A.As B.Since C.Unless D.Although【答案】D【解析】【詳解】句意:雖然旅途很累,杰夫認為時間和金錢都值得。根據(jù)下文Jeff thought it was worth both the time and the ,這里用Although引導。20. Square Dancing is good exercise for the old, sometimes it makes a lot of noise.A.IfB.AlthoughC.UntilD.Because【答案】B【解析】【詳解】句意:雖然廣場舞對老年人來說是很好的運動,但有時也會制造很大的噪音。D. Because連詞,因為,引導原因狀語從句