Jeff the hospital if he feels better in a few days．( )A．leavesB．leftC．will leaveD．has left 题目和参考答案——青夏教育精英家教网——

题目内容

13．Jeff ________ the hospital if he feels better in a few days．（　　）

A．

leaves

B．

left

C．

will leave

D．

has left

分析几天之后如果他感觉好点了杰夫就能离开医院了．

解答答案：C．
结合句意if引导的条件状语从句，遵循主将从现的规则，主句用一般将来时will+动词原形，故答案是C．

点评 1． if从句用一般现在时，主句用一般将来时
If he runs  he'll get there in time．如果他用跑的，他就会及时赶到那儿． The cat will scratch you if you pull her tail．如果你拉猫的尾巴，它就会抓你．
2．．if从句用一般现在时，主句用may/might/can
If the fog gets thicker the plane may/might be diverted．如果雾在大一些，飞机可能就会改在别的机场降落．
If it stops snowing we can go out．如果雪停了，我们就可以出去．
3． if从句用一般现在时，主句用must/should
If you want to lose weight you must/should eat less bread．如果你想减肥，你必须少吃面包．

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1．---What a nice dress!How long ________ you ________ it？
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A．独特的
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根据短文内容，判断下列句子正误．正确的用"T"表示，不正确的用"F"表示．
41．American scientists started to develop self-driving cars in 2009．F
42．Cameras and computers are on the top of the self-driving car by Google．F
43．In China，scientists have successfully developed a self-driving car．T
44．The more self-driving cars there are on the street，the fewer traffic deaths there will be．T
45．The self-driving cars will be very popular in the near future．F．