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果(主)句中的謂語是終止性動詞,應采用“not…until”結構,意為“到……時候才” 根據(jù)句子結構,結合選項,故選A。11.Chen Wei isn’t at school today ________ he is taking a robot petition in Shanghai.A.so B.because C.before D.if【答案】B【解析】試題分析:句意:陳煒今天不在學校因為他在上海參加機器人競賽。so所以;because因為;before在……之前;if如果。所以選B。考點:考查連詞。12.I didn’t _____ you were going to leave_____ 3 o’clock.A.find。 at B.realize。 untilC.remember。 before D.tell。 after【答案】B【解析】【詳解】句意:我沒有意識到你將3點離開??疾閯釉~辨析。find找到; realize意識到; remember記?。?tell告訴;until 是直到。根據(jù)句意,故選B。13.Shall we go for a piic in the forest park tomorrow? Yes, it rains heavily.A.if39。 B.unless C.until D.When【答案】B【解析】試題分析:句意:明天我們在森林公園進行野餐怎么樣?是的,如果雨下的不大。 A. if39。 如果;B. unless 除非;C. Until直到;D. When當……的時候。結合句意可知是unless引導的條件狀語從句,故選B考點:考查連詞的用法。14.I will go to the English club tomorrow I am too busy.A.since B.if C.unless D.until【答案】C【解析】【詳解】句意:明天我將會去英語俱樂部,除非我太忙。since自從;if如果;unless除非,如果不;until直到…時候。根據(jù)句意可知,這里表示的意思是“如果我不忙,我會…”,故應選C。15.Is your WeChat account (賬戶) safe?Yes, even my father can39。t use it __________ I tell him the password.A.when B.unless C.while D.if【答案】B【解析】【詳解】句意:你的微信賬號安全嗎?是的,如果我不告訴他密碼甚至我的爸爸都不能使用它。when當…時候;unless除非,如果不;while當…時候;if如果。根據(jù)句意my father can39。t use it…可知,這里應表示“不告訴他密碼”,故應選B。16.Cathy is afraid of the dog. She will run away _______she sees it.A.ever since B.a(chǎn)lthough C.a(chǎn)s soon as D.so that【答案】C【解析】【詳解】句意:凱西害怕狗,她一看到狗就跑了??疾檫B詞辨析。A. ever since自從;B. although雖然、盡管;C. as soon as一…就;D. so that以便;所以。根據(jù)Cathy is afraid of the dog. 凱西害怕狗,可推知是她一看到狗就跑開了,結合選項可知C選項符合題意,故答案選C。17.He was so busy preparing for the high school entrance exam that .A.he had enough time to watch football matches every dayB.he was free enough to go shopping