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        1. If we ______ take environmental problems seriously, the earth _______ worse and worse.
          A.don’t; will beB.won’t; isn’t
          C.won’t; isD.don’t; won’t be
          A

          試題分析:句意:如果我們不嚴(yán)肅對(duì)待環(huán)境問題,地球就會(huì)變得越來越糟糕。結(jié)合語境可知主句描述的是將來動(dòng)作,故用一般將來時(shí)態(tài)。當(dāng)主句描述將來動(dòng)作時(shí),英語條件狀語從句中一般用一般現(xiàn)在時(shí)態(tài)。選A。
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