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;B. how怎樣,表方式; C. why為什么,表原因; D. where在哪里,表地點(diǎn);根據(jù)but的表達(dá)的句意轉(zhuǎn)折,可知造船的目的不是為了安全地停在港灣,由此推斷空格是表目的,for what=why,故選A。注意疑問(wèn)句的答語(yǔ)中對(duì)主句的省略。Till表示選擇。23.Take more exercise, very rich非常有錢和后面的doesn39。除非有環(huán)保意識(shí),否則環(huán)境將變得更糟,本句是unless引導(dǎo)的條件狀語(yǔ)從句,故答案選A。 該句是祈使句,且句子前后是并列順承關(guān)系, 因此用and,故答案選D。afterll get better soon. A.;;;。when本句為時(shí)間狀語(yǔ)從句,主句為現(xiàn)在完成時(shí),從句為一般過(guò)去時(shí),因此使用since。ifC.so thatC.s father was cleaning the car _______________ his mother was doing housework. A.OtherwiseD.C.B.because rise【答案】 A 3.I think you should be against the situation, ________, of course, you are happy with it. A. riseIf。Unless。howevernot only…but alsoorandbutnor【答案】 B 6.It was the middle of the night _____the sound of the piano woke me up. A.afterC.As soon asWhileUntilBefore【答案】 A 12.Tom39。sinceB.ifB.……時(shí)候;;;。I was just leaving the telephone rang. A.thensoandor【答案】 D 【解析】【分析】句意:Emily,你又玩游戲!努力學(xué)習(xí),否則你將在接下來(lái)的考試中失敗。you39。B.or;……之后;,否則;。A除非……否則;B如果;C為了。so【答案】 C 【解析】【分析】句意:史密斯先生非常有錢,但是他感覺(jué)不開(kāi)心。after 【點(diǎn)評(píng)】考查連詞辨析,首先識(shí)記選項(xiàng)意思,然后根據(jù)句意確定。表示轉(zhuǎn)折。B. 【點(diǎn)評(píng)】考查狀語(yǔ)從句。for介詞后面跟代詞作賓語(yǔ)。注意固定短語(yǔ)not...until...的使用。D.or 【點(diǎn)評(píng)】考查連詞辨析。t like western food. I seldom eat it ______________ to McDonald39。B.as1