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        1. The flowers ________ every day, or they will die.
          A.must waterB.can be watered
          C.should waterD.must be watered
          D

          試題分析:此題重點(diǎn)考查被動(dòng)語(yǔ)態(tài),由于主語(yǔ)是動(dòng)作的承受者,該句要用被動(dòng)語(yǔ)態(tài),排除A、C;根據(jù)句意:“每天一定要澆花,否則他們會(huì)死掉”B答案語(yǔ)氣太委婉,因此要用must be+過(guò)去分詞,故選D
          點(diǎn)評(píng):該題考查被動(dòng)語(yǔ)態(tài),做題時(shí)首先分析題干的主語(yǔ)是動(dòng)作的執(zhí)行者還是動(dòng)作的承受者,若是動(dòng)作的承受者就要用被動(dòng)語(yǔ)態(tài),特別要主語(yǔ)被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu),be+動(dòng)詞的過(guò)去分詞
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