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r environment a lot each of us does something useful for it?A.while B.until C.after D.unless【答案】D【解析】【詳解】句意:除非我們每個人都做一些有益的事情,否則我們如何才能大大改善我們的環(huán)境呢?考查連詞辨析。while當……的時候,表時間;until直到,表時間;after在……之后,表時間;unless除非,表條件。本句是條件狀語從句,根據(jù)句意結構和語境,可知選D。19.—Did you give Dick a call?—I didn’t need to ______ I’ll see him soon.A.when B.through C.until D.because【答案】D【解析】試題分析: 句意:你給湯姆打電話了嗎? 我沒必要打,因為我很快就要看到他了。when當……的時候,though盡管,.until直到,because因為。根據(jù)I didn’t need to,我沒必要打,可知不打電話是有原因的,故選D考點:考查連詞。20. — When did you go to bed last night?— ____________ I finished my homework.A.Until B.Not until C.When D.While【答案】B【解析】not …until 表示直到…才,與短暫性動詞連用,故選B21.I won39。t go he es back.A.until B.while C.when D.why【答案】A【解析】句意:直到他回來,我才走。A. until 直到; B. while當時候; C. when當時候; D. why為什么;notuntil 直到才;故選A22.—I’m afraid the class has begun.—Don’t worry. It ________ until the bell ________.A.doesn’t begin。 rings B.won’t begin。 will ringC.won’t begin。 rings D.doesn’t begin。 will ring【答案】C【解析】試題分析:句意:恐怕課已經開始了。一不要擔心。直到鈴聲響了才會開始。前面是主句,會議還沒開始,所以用一般將來時;后面是until引導的時間狀語從句,所以要用一般現(xiàn)在時代替一般將來時。所以選C??键c:考查動詞時態(tài)。23.The two old friends were ____ busy ____ with each other that they forgot the time.Yes. They hadn’t met for over ten years, so they kept talking the whole night.A.too。 to talk B.too。 talking C.so。 to talk D.so。 talking?!敬鸢浮緿【解析】試題分析:句意:這兩個老朋友那么忙于交談以至于忘了時間。是。他們十年多沒見到了,所以他們聊了一晚上??疾榫涫絪o…that…因此……以至于……。be busy doing忙于做……,故選D??键c:考查so…that句式。24.—I’m going to the post office.—________you are there, can you get me some stamps?A.When B.While C.Because D.If【答案】B【解析】試題分析:A. As 一邊…一邊,作為 B. While當…時候 C. Because 因為 D. lf假如;句意:我將要去郵局。你去那里的時候,能不能給我?guī)б恍┼]票呢?故選B考點:連詞點評:連詞在中考中涉及到的很多,尤其在賓語從句、狀語從句、定語從句中連詞是必考點。平時學習過程中,掌握連詞的意思,及所表示的關系是至關重要的,這種關系的判斷可以通過句子意思的理解來選擇恰到的連詞。25.—Winter swimming is exciting, but one can’t do it ________ he or she has got some training. — Exactly! It can be dangerous.A.after B.unless C.if D.while【答案】B【解析】句意:——冬泳是令人興奮的,但除非他或她接受了一些訓練,否則是不行的。 ——沒錯!這可能是危險的。A. after在……之后;B. unless 除非;C. if 如果;D. while當……的時候。根據(jù)語境和句意可知用unless。故選B。26.Lots of people exercise every morming_________bad weather stops them.A.if B.unless C.until D.since【答案】B【解析】考查連詞詞義辨析。A. if“如果”;B. unless“除非;如果不”;C. until“直到”;D. since“自從;既然”。句意:很多人每天早晨鍛煉 _______ 惡劣的天氣阻攔他們。結合選項的意思和句意可知,用unless。故選B。27.Cathy is afraid of the dog. She will run away _______she sees it.A.ever since B.although C.as 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。28.Henry will give us a report as soon as he _______.A.arrives B.arrived C.is arriving D.will arrive【答案】A【解析】【詳解】句意:亨利一到,他就要給我們做一個報告。當主句描述將來動作時,英語條件狀語從句中用一般現(xiàn)在時態(tài)表示將來的動作;主語單三,謂語動詞用單數(shù)形式;故選A。29.You will never achieve success _____you devote yourself to your work.A.after B.if C.because D.unless