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。C.ifD.as【答案】 A 22.It won39。t be a long time ________ your son es back. Don39。t be worried. A.sinceB.asC.beforeD.unless【答案】 C 23.You like football ___________ she likes reading. A.WhenB.orC.becauseD.while【答案】 D 24.My mother has little interest in football ___________ she didn39。t watch the live match on TV yesterday evening. A.soB.ifC.thoughD.when【答案】 A 25.___________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 26.— Excuse me. I wonder ______________ the plane can land on time. — Wait a minute, please. Let me check it out.A.ifB.whichC.that【答案】 A 【解析】【分析】句意:——不好意思,我想知道飛機能否準時著陸?!埖纫幌隆W屛铱纯?。A是否,引導賓語從句,物成分,B哪一個,引導賓語從句做定語,C引導賓語從句,物成分,無詞意,根據(jù)從句中不缺少成分,故主句的謂語動詞wonder,可知是if , 故選A。 【點評】考查賓語從句,注意連詞if的用法。27.My best friend and I haven39。t seen each other ___________ she went to the USA 10 years ago. A.whenB.ifC.althoughD.since【答案】 D 【解析】【分析】句意:自從我的朋友十年前去了美國,我和我的朋友們就沒有見過面?!瓡r候;;;。本句為時間狀語從句,主句為現(xiàn)在完成時,從句為一般過去時,因此使用since。故答案是D。 【點評】考查連詞辨析,注意since連接的時間狀語從句,主句為現(xiàn)在完成時,從句為一般過去時。28.The battle continued for several hours ___________ darkness came on. A.as soon asB.thoughC.sinceD.until【答案】 D 【解析】【分析】句意:戰(zhàn)爭持續(xù)了幾個小時,直到黑夜來臨。……就……;;;。continue是延續(xù)性動詞,句子所要表達的意思是戰(zhàn)爭一直持續(xù)到了晚上,所以使用until,故答案是D。 【點評】考查連詞辨析,注意連詞until的用法。29.The writer walked slowly ______________ his bad leg. A.becauseB.sinceC.asD.because of【答案】 D 【解析】【分析】句意:那位作家因為腿不好走得慢。because、since和as都有因為的意思,都是連詞,后面接句子;because of因為,介詞短語,后面不加句子。his bad leg不是句子,所以用because of。 【點評】考查連詞辨析和短語辨析,注意平時識記because、since、as和because of的區(qū)別。30.— Do you still remember our primary school teacher, Mrs. Liu? — Yes, she always encouraged us and gave us support ______________ we met difficulties.A.wheneverB.whateverC.however【答案】 A 【解析】【分析】句意:——你還記得我們的小學老師嗎,劉老師?——是的,無論什么時候我們遇到困難,她總是鼓勵我們,給予我們支持。;;。無論我們什么時候遇到困難,老師總是鼓勵我們,所以用whenever,故選A。 【點評】考查連詞辨析,首先識記連詞詞義,然后根據(jù)句意確定。31.— The local living conditions(條件) have improved a lot ________________ China set up the city of Sansha. — And more and more people would like to go there for business.A.beforeB.whenC.sinceD.after【答案】 C 【解析】【分析】句意:——自從中國建立三沙市以來,當?shù)氐纳顥l件有了很大的改善?!絹碓蕉嗟娜讼肴ツ抢镒錾?。......之前;......時候;;......之后。根據(jù)主句The local living conditions(條件) have improved a lot可知時態(tài)是現(xiàn)在完成時,從