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ch ______________ my mother was doing some washing last night. A.unlessC.until【答案】 C 12.The situation is being more serious ________________ we do something to save the Earth. A.whenC.unless【答案】 D 13.She got up very early that day __________ she could catch the first train. A.B.C.D.t be a long time ________ your son es back. Don39。sinceasbeforeunless【答案】 C 15.You39。unlessB.althoughD.A: unless除非;B: until 直到……才(為止);C: although 盡管;D: if如果。 【點評】考查連詞辨析。16.He doesn39。good enough: butB. butC. soD. so【答案】 D 【解析】【分析】句意: 他覺得不舒服,所以他必須去看醫(yī)生。 【點評】考查形容詞辨析,注意連詞so的用法。unlessB.so that【答案】 A 【解析】【分析】句意:除非每個人有保護(hù)環(huán)境的意識,否則環(huán)境將會更糟糕。除非有環(huán)保意識,否則環(huán)境將變得更糟,本句是unless引導(dǎo)的條件狀語從句,故答案選A。18.The little boy was______ excited _____ say a word when he knew the result of the final exam. too。so。so。such。A太而……不能,不引導(dǎo)從句,B如此……以至于,修飾形容詞,引導(dǎo)結(jié)果狀語從句,C和……一樣,不引導(dǎo)從句,D如此……以至于,修飾名詞,引導(dǎo)結(jié)果狀語從句,excited是形容詞,此處是結(jié)果狀語從句 , 故選A。19.—When will the railway that connects the two cities open? —next year. Only halfbeen pleted. A. hasNot until。C. haveNot until。只完成了一半。 【點評】考查連詞和主謂一致。20.________ you sit in front of the puter all day while working, you39。Even ifB.SinceD.A. Even if 即使,一般引導(dǎo)的是把握不大或假設(shè)的事情;B. Even though即使,引出的是事實;C. Since由于,表已知的事實或顯見的原因;D. As if 好像,引導(dǎo)表語從句或引導(dǎo)方式狀語從句;從文字的表層意思推斷,根據(jù) you sit in front of the puter all day while working 你整天坐在電腦前工作,表示已知的事實,判斷空格用since,故選C。弄清所給短語意思,根據(jù)上下文的聯(lián)系確定所使用的連詞短語。whether, visitingthat, a visitthat, travellingwhether, travel【答案】 B 【解析】【分析】句意