-I wonder why he left without a word．-He some trouble for he looks dull．( )A．could have hadB．should have hadC．can have hadD．must have had 题目和参考答案——青夏教育精英家教网—

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8．-I wonder why he left without a word．
-He some trouble for he looks dull．（　　）

A．

could have had

B．

should have had

C．

can have had

D．

must have had

分析 --我不知道他为什么一声不吭地离开了．
--他肯定是有麻烦了，因为他看上去没精打采的．

解答答案是D．本题考查"情态动词+have done"的结构．could have done表示"本可能…，而实际上没有"；should have done表示"本应该…而实际上没有"；can have done往往用在否定句和疑问句中表示"对已经发生的事件做推测"；must have done用在肯定句中对已经发生是事表示推测"肯定已经…"；根据"for he looks dull因为他看上去没精打采的"可知是肯定推测，表示"他肯定是有麻烦了"．由此判断答案选择D．

点评本题考查"情态动词+have done"的结构；首先理解各"情态动词+have done"的含义，然后根据语境，选用恰当的情态动词．

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科目：高中英语 来源： 题型：阅读理解

18．Welcome to your future life!
You get up in the morning and look into the mirror．Your face is firm and younglooking．In 2035，medical technology is better than ever．Many people your age could live to be 150，so at 40，you're not old at all．And your parents just had an antiaging（抗衰老的）treatment．Now，all three of you look the same age!
You say to your shirt，"Turn red．"It changes from blue to red．In 2035，"smart clothes"contain particles（粒子） much smaller than the cells in your body．The particles can be programmed to change your clothes'color or pattern．
You walk into the kitchen．You pick up the milk，but a voice says，"You shouldn't drink that！"Your fridge has read the chip （芯片） that contains information about the milk，and it knows the milk is old．In 2035，every article of food in the grocery store has such a chip．
It's time to go to work．In 2035，cars drive themselves．Just tell your"smart car"where to go．On the way，you can call a friend using your jacket sleeve．Such"smart technology"is all around you．
So will all these things come true？"For new technology to succeed，"says scientist Andrew Zolli，"it has to be so much better that it replaces what we have already．"The Internet is one example-what will be the next？

41．We can learn from the text that in the futureD．
A．people will never get old
B．everyone will look the same
C．red will be the most popular color
D．clothes will be able to change their pattern．
42．What can be inferred from Paragraph 4？C
A．Milk will be harmful to health．
B．More drinks will be available for sale．
C．Food in the grocery store will carry electronic information．
D．Milk in the grocery store will stay fresh much longer．
43．Which of the following is mentioned in the text？D
A．Nothing can replace the Internet．
B．Fridges will know what people need．
C．Jacket sleeves can be used as a guide．
D．Cars will be able to drive automatically．
44．What is the text mainly about？B
A．Food and clothing in 2035．
B．Future technology in everyday life．
C．Medical treatments of the future．
D．The reason for the success of new technology．

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