题目内容

3.He can hardly stay awake because he is so tired.______?(  )
A.does heB.isn't heC.can't heD.can he

分析 他很难保持清醒因为他是如此的劳累.是不是?

解答 句意:他很难保持清醒因为他是如此的劳累.是不是?前文hardly表示否定含义,后附加部分用肯定.前有情态动词can,后附加疑问句用can he.故选:D

点评 反意疑问句一般遵循前肯定则后否定,前否定则后肯定的原则,并且疑问部分时态,人称要与前文保持一致.

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15.Is there intelligent (有智力的) life on other planets?For years,scientists said"no."or"we don't know."But today this is changing.Seth Shostak and Alexandra Barnett are astronomers(天文学家).They believe intelligent life exists (存在) somewhere in the universe.They also think we sill soon contact these beings(人;生物).
  Why do Shostak and Barnett think intelligent life exists on other planets?The first reason is time.Scientists believe the universe is about 12billion years old."This is long enough for other planets to have intelligent life,"say Shostak and Barnett.The second reason is size-the universe is huge."Tools like the Hubble Telescope(哈勃望远镜) have shown that there are at least 100billion galaxies,"says Shostak."And our galaxy,the Milky Way,has at least 100billion stars.Some planets going around these stars might be similar to Earth."
  In the past,it was hard to look for signs of intelligent life in the universe.But now,powerful telescopes(高倍望远镜) allow scientists to discover smaller planets-the size of Mars or Earth-in other solar systems.These planets might have intelligent life.
  Have beings from space already visited Earth?"Probably not,"says Shostak."It's a long way away.However,intelligent beings may contact us in other way,such as radio signals(信号).In fact,they may be trying to communicate with us now,but we don't have the right tools to receive their messages.However,this is changing.By 2025,we could make contact with other life forms in our universe and we might help each other."

61.Seth Shostak and Alexandra Barnett areA.
A.astronomers           B.farmers                 C.singers            D.drivers
62.What is the best title for Paragraph 2?C
A.The Age and Size of Earth
B.Our Galaxy:The Milky Way
C.Why Intelligent Life Might Exist
D.Earth:The Only Planet with Intelligent Life
63.Why was it hard to look for signs of intelligent life in the universe in the past?B
A.There were not any smaller planets.
B.There were not any powerful telescopes.
C.The astronomers were not interested in them.
D.The Milky Way didn't exist at that time.
64.Why haven't beings from space visited us yet according to Shostak?B
A.They're afraid of us.        
B.It's a long way away.
C.They don't want to see us.
D.They don't know how to use radio signals.
65.What does the underlined phrase"life forms"in the last paragraph mean?C
A.Messages      B.Tools         C.Intelligent beings        D.Radio signals.
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Most kite fans fly their kites just for fun,but serious kite fliers take part in contests.
Kites are used for practical(实用的) purposes,too.The U.S.Weather Bureau uses kites to collect information about winds and weather.Some of the kites used in this work carry scientific instruments and fly higher than 20,000 feet.
To fly a kite,it's usually necessary to run into the wind for a few feet.As the kite begins to rise,let out more line and pull it.
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(一)根据短文内容简要回答问题.
81.Do most kite fans take part in contests?No,they don't.
82.Where can't you fly a kite?We can't fly a kite near trees or electric lines,or in an area where there are low-flying planes.
(二)将短文中划线的句子译成汉语.
83.风筝在亚洲国家一直特别流行./尤其在亚洲国家,风筝一直很流行.
84.它们被做成各种形状、各种颜色、各种大小.
(三)请给短文拟一个适当的标题.
85.Kite/Kites/Flying a kite/Flying kites.

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