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houghC.andD.because【答案】 B 8.—Mom, I want to be an engineer when I grow up. —Son, your dream will not e true _____ you keep trying your best.A.whenB.whetherC.unlessD.because【答案】 C 9.My father was preparing for his speech ______________ my mother was doing some washing last night. A.ifB.unlessC.whileD.until【答案】 C 10.___________three fourths of the Earth39。s surface is covered with water, 97 percent of it is salt water in the sea. A.ButB.AlthoughC.AsD.However【答案】 B 11.Some people waste food___________ others haven39。t enough. A.whileB.duringC.whenD.which【答案】 A 12.The film seems interesting ______ we all want to see it. A.andB.butC.unlessD.if【答案】 A 【解析】【分析】句意:這部電影似乎很有趣,我們都想看。A: and又,和,表示順接; B: but但是,表示轉(zhuǎn)折; C: unless除非。表示條件; D: if如果,表示假設(shè)。根據(jù)interesting 和want to see,可知前后兩句是順接關(guān)系,要用and。 【點評】考查連詞辨析。根據(jù)前后句的關(guān)系,選擇正確的連詞。13.After the new highspeed railway line began operations, the time on the trip from Lianyungang to Qingdao now is much less than __________in the past. A.oneB.thisC.that16