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If the earth stopped moving, everything _____.
A.would disappearB.disappeared
C.will disappearD.disappears
A

试题分析:if的虚拟语气非常重要,简要概括如下:1、表示与现 在事实相反的情况,从句:If主语+过去时(Be动词用were);主句:主语+should/would/could/might+do: 2、表示与过去事实相反的情况,从句:If主语+had+done;主句:主语+should/would/could/might+have done 3、表示对将来情况的主观推测,从句:①if+主语+were to do②if+主语+should+do ③if+主语+did(动词过去式)/were ;主句:主语+should/would/could/might+do;根据第一句中的stopped,可知本句应该是与现在事实相反的虚拟语气,使用主句中使用would+动词原形。句义:如果地球停止转动,一切都会消失。故A正确。
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