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25.Let39。s join_______the game, it seems very interesting. A.onB.forC.inD.of【答案】 C 【解析】【分析】句意:讓我們加入這個游戲吧。它看起來非常有趣。join in加入,為固定短語。故選C?!军c評】考查固定短語join in。26.He has little knowledge of history and geography, ___________ he? A.hadB.doesC.hasn39。tD.doesn39。t【答案】 B 【解析】【分析】句意:他沒有一點歷史和地理知識,是嗎?本題考查的是反義疑問句的構(gòu)成,反義疑問句的結(jié)構(gòu)為:肯定句+否定疑問?否定句+肯定疑問?由little可知,原句為否定句,后面是肯定疑問,原句中的has是行為動詞,構(gòu)成附加疑問應使用助動詞does。故答案是B。 【點評】考查反義疑問句的構(gòu)成,注意反義疑問句的構(gòu)成方式。27.—I want to learn to skate but find it difficult to ________. —Don39。t worry. Practice makes perfect. All that you need is more practice.A.fall overB.keep my balanceC.keep healthy【答案】 B 【解析】【分析】句意:—— 我想學滑冰,但發(fā)現(xiàn)很難保持平衡。——別擔心,熟能生巧。你需要的就是多練習。fall over,被絆倒,keep my balance,保持平衡,keep healthy,保持健康,根據(jù) learn to skate可知,滑冰容易站不穩(wěn),摔倒,因此要練習保持平衡,keep balance , 故選B。 【點評】考查動詞短語辨析,注意選擇與語境匹配的短語。28.These dishes are cold. You should if you want to eat them. A.heat it upB.heat up itC.heat them upD.heat up them【答案】 C 【解析】【分析】句意:這些菜冷了,如果你想吃的話應該熱一下。heat up加熱,跟代詞作賓語時放在中間。此處指代these dishes,故用them,故選C?!军c評】考查動詞短語。29.You should really smoking.It39。s a terrible habit. A.grow upB.pick upC.give upD.set up【答案】 C 【解析】【分析】句意:你真的應該戒煙,那是一個可怕的習慣。grow up長大;pick up撿起;give up放棄;set up建起。故選C?!军c評】考查動詞短語辨析。30.— Jack, don39。t forget your homework. It __________ today.— OK, I will finish it on time.A.should finishB.should be finishedC.can39。t finishD.can39。t be finished【答案】 B 【解析】【分析】句意:Jack,不要忘了你的作業(yè)。今天它應該被完成。should:應該,后跟動詞原形。it代指作業(yè),和finish是動賓關系,因此要用被動結(jié)構(gòu)be finished, can39。t:不可能,故選B。【點評】考查謂語動詞。根據(jù)語境判斷出句意,注意被動語態(tài)的構(gòu)成。