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having【答案】C【解析】【詳解】句意:今天的年輕人沒有智能手機就活不下去。13.The nurse won39。此處表示讓步關(guān)系,故選C。9.I hate traveling by air______you usually have to wait for hours before the plane takes off.A.because B.though C.until D.so that【答案】A【解析】【詳解】句意:我討厭坐飛機旅行,因為通常要等上幾個小時才能起飛??疾檫B詞辨析。5.You will fall behind others ______ you work hard.A.if B.unless C.though D.since【答案】B【解析】試題分析:句意:如果你不努力學(xué)習(xí),你會落后別人。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。while當(dāng)……的時候,表時間;although盡管,表讓步;unless除非,表條件,相當(dāng)于if not;until直到,與not連用表示“直到……才”??疾檫B詞辨析。根據(jù)題意,故選C。but但是,表示轉(zhuǎn)折關(guān)系;or或者,表示選擇;for為了,表示原因;so所以,表示結(jié)果。10.Life is like climbing a mountain. ______ you feel tired, you will enjoy the beautiful view at the top of the mountain.A.Since B.Unless C.Though D.Because【答案】C【解析】【詳解】句意:生活就像爬山。A. until到…為止;B. because 因為;C. since既然,因為。14. Can’t I park my car free here? You can, for four hours, __________ you spend over 100 yuan in this supermarket.A.though B.if C.unless【答案】B【解析】【詳解】句意:我不能把車免費停在這里嗎? 如果你在這家超市花費超過100元,你可以免費停車四個小時。 that B.so。 / B.Though。18.Betty you the answer as soon as she works it out later.A.tells B.told C.will tell D.is telling【答案】C【解析】【詳解】句意:貝蒂之后一算出來,她就會告訴你答案。 A. unless 除非; B. once 一次;C. since 因為; D. after 在…之后,根據(jù)題意可知此句是unless引導(dǎo)的條件狀語從句,故選A。didn39。told考點:考查連詞的用法。A 因為;B 當(dāng)……時候;C 為了;D 似乎;故選C。the part was a small one根據(jù)語序用陳述語序,應(yīng)選D。根據(jù)句意,故選B。 at B.realize??疾檫B詞辨析。27.—Susan,what are the advantages of MP5 players?—Mom,they are smaller and lighter________they can be carried very easily.A.unlessB.ifC.untilD.so that【答案】D【解析】【詳解】句意:——Sus