请认真阅读下面对话，并根据各题所给首字母的提示，在标有题号的右边横线上，写出一个英语单词的完整、正确形式，使对话通顺。

M: Well, this is it! What do you think of it?

W: I can hardly believe it's real. I've (76)d        of seeing it ever since       _________

 I saw it in books when I was a child. Just thinking of all this being built

 by hand more than 2,000 years ago! No (77)w       it's one of the      _________

wonders of the world.

M: (78) A      the started building is more than 2,500 years ago when   _________

 China was divided into (79)v      states. Three of the northern states   _________

 built defensive walls along their borders to keep (80)o       the enemies.

._________

W. But I always thought the wall had been built by Qin Shihuang, the first

   (81) E       of China.                                                                 _________

M: Well, yes. In the way, you see, he united the(82)w      country in the_________

 third century B. C. and one of the things he did was to join the (83)s    _________

walls into one big wall and to build more walls from the east coast right

across the length of north China to the west.

W: It is certainly something any nation could be proud of. I hear this is the

 only human(84)c       on the earth that can be seen from the moon.    _________

 By the way, how tall is the wall?

M: The average (85) h       is 7.8 meters; the average width is 6.5 meters_________

 at the base and 4.5 meters at the top. Would you like to go up to the top?

W: Yes! I'd like to have a look from the top.

（2011·江西卷）D

Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.

     Perhaps the best answer lies in our genetic makeup(基因构成) as human beings. What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival. Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible.

Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified and prepared for. Without knowledge, we may be completely destroyed by the danger. With knowledge, we can lessen its effects.

    Exploration also allows minerals and other potential (潜在的) resources to be found. Even if we have no immediate need of them, they will perhaps be useful later. Resources may be more than physical possessions. Knowledge or techniques have been acquired through exploration. The techniques may have medical applications which can improve the length or quality of our lives. We have already benefited from other spin-offs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems. Even non-stick pans and mirrored sunglasses are by-products (副产品)  of technological developments in the space, the chance to save ourselves might not exist.

While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us. While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The danger exists, but knowledge can help human being to survive. Without the ability to reach out across space, the chance to save ourselves might not exist.

While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future.

71. Why does the author mention the questions in Paragraph1?

       A. To express his doubts.

       B. To compare different ideas.

       C. To introduce points for discussion.

       D. To describe the conditions on Earth.

72. What is the reason for exploring space based on Paragraph2?

       A. Humans are nature-born to do so.

       B. Humans have the tendency to fight.

       C. Humans may find new sources of food.

       D. Humans don’t like to stay in the same place.

73. The underlined word“spin-offs” in Paragraph 4 probably refers to______.

       A. survival chances                                          B. potential resources

       C. unexpected benefits                               D. physical possessions

74. What makes it possible for humans to live on other planets?

       A. O       ur genetic makeup.                             B. Resources on the earth..

       C. The adaptive ability of humans.              D. By-products in space exploration.

75. Which of the statements can best sum un the passage?

       A. Space exploration has created many wonders.

       B. Space exploration provided the best value for money.

       C. Space exploration may help us avoid potential problems on Earth.

Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.

     Perhaps the best answer lies in our genetic makeup(基因构成) as human beings. What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival. Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible.

Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified and prepared for. Without knowledge, we may be completely destroyed by the danger. With knowledge, we can lessen its effects.

    Exploration also allows minerals and other potential resources to be found. Even if we have no immediate need of them, they will perhaps be useful later. Resources may be more than physical possessions. Knowledge or techniques have been acquired through exploration. The techniques may have medical applications which can improve the length or quality of our lives. We have already benefited from other spin-offs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems. Even non-stick pans and mirrored sunglasses are by-products (副产品) of technological developments in the space industry!

While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us. While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The danger exists, but knowledge can help human beings to survive. Without the ability to reach out across space, the chance to save ourselves might not exist.

While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future.

1.Why does the author mention the questions in Paragraph1?

    A. To express his doubts.             B. To compare different ideas.

    C. To introduce points for discussion.   D. To describe the conditions on Earth.

2.What is the reason for exploring space based on Paragraph2?

A. Humans are nature-born to do so.      B. Humans have the tendency to fight.

C. Humans may find new sources of food.  D. Humans don’t like to stay in the same place.

3.The underlined word “spin-offs” in Paragraph 4 probably refers to______.

    A. survival chances                     B. potential resources

    C. unexpected benefits                  D. physical possessions

4.What makes it possible for humans to live on other planets?

    A. O    ur genetic makeup.                  B. Resources on the earth..

    C. The adaptive ability of humans.      D. By-products in space exploration.

5.Which of the statements can best sum up the passage?

    A. Space exploration has created many wonders.

    B. Space exploration provides the best value for money.

    C.Space exploration can benefit science and technology

    D. Space exploration may help us avoid potential problems on Earth.

请认真阅读下面对话，并根据各题所给首字母的提示，在标有题号的右边横线上，写出一个英语单词的完整、正确形式，使对话通顺。

M: Well, this is it! What do you think of it?

W: I can hardly believe it's real. I've (76)d        of seeing it ever since    1._________

 I saw it in books when I was a child. Just thinking of all this being built

 by hand more than 2,000 years ago! No (77)w       it's one of the    2._________

wonders of the world.

M: (78) A      the started building is more than 2,500 years ago when     3._________

 China was divided into (79)v      states. Three of the northern states        4._________

 built defensive walls along their borders to keep (80)o       the enemies.

5.._________

W. But I always thought the wall had been built by Qin Shihuang, the first

   (81) E       of China.                                                                                         6._________

M: Well, yes. In the way, you see, he united the(82)w      country in the7._________

 third century B. C. and one of the things he did was to join the (83)s    8._________

walls into one big wall and to build more walls from the east coast right

across the length of north China to the west.

W: It is certainly something any nation could be proud of. I hear this is the

 only human(84)c       on the earth that can be seen from the moon.         9._________

 By the way, how tall is the wall?

M: The average (85) h       is 7.8 meters; the average width is 6.5 meters10._________

 at the base and 4.5 meters at the top. Would you like to go up to the top?

W: Yes! I'd like to have a look from the top.

Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.
Perhaps the best answer lies in our genetic makeup(基因构成) as human beings. What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival. Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible.
Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas can be identified and prepared for. Without knowledge, we may be completely destroyed by the danger. With knowledge, we can lessen its effects.
Exploration also allows minerals and other potential resources to be found. Even if we have no immediate need of them, they will perhaps be useful later. Resources may be more than physical possessions. Knowledge or techniques have been acquired through exploration. The techniques may have medical applications which can improve the length or quality of our lives. We have already benefited from other spin-offs including improvements in earthquake prediction, in satellites for weather forecasting and in communications systems. Even non-stick pans and mirrored sunglasses are by-products (副产品) of technological developments in the space industry!
While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us. While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The danger exists, but knowledge can help human beings to survive. Without the ability to reach out across space, the chance to save ourselves might not exist.
While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future.
【小题1】Why does the author mention the questions in Paragraph1?