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700字范文 > it rain tomorrow we would have to put off the visit to the Water Cube.A. ShouldB. CouldC

it rain tomorrow we would have to put off the visit to the Water Cube.A. ShouldB. CouldC

时间:2019-06-11 11:25:36

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it rain tomorrow  we would have to put off the visit to the Water Cube.A. ShouldB. CouldC

问题补充:

it rain tomorrow, we would have to put off the visit to the Water Cube.

A. Should

B. Could

C. Had

D. Were

答案:

(答案→)A. Should

B. Could

C. Had

D. Were

解析:条件句的虚拟语气是考查的重点。如果过去事实相反,条件句中使用过去完成时,主句使用“情态动词+have done”;如果主句与现在事实相反,条件句中使用过去时,be动词使用were,主句中使用“情态动词+动词原形”;如果与将来事实相反,条件句中有三种:过去时;were to do ;should+动词原形,主句使用“情态动词+动词原形”;要特别注意如果省略了if,句子要使用部分倒装的形式,把助动词,be动词,情态动词提之主语前。根据本句中的tomorrow可知这是与将来事实相反的虚拟语气,使用should+动词原形,而且省略了if,构成部分倒装的形式。句义:如果明天下雨,我们就推迟去水立方的参观。故A正确。

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