One afternoon in January in 1998, Susan Sharp, 43, and her 8-year-old son David, were walking across an icy square, when Susan’s cane(手杖) slipped on the ice. Her face   36  first into the mud. David   37  her mother’s side, “Are you all right, Mom”  38 , Susan pulled herself up, “I’m okay, Honey,” she said.
Susan was falling more   39  since she had trouble walking. Every inch of ice was a   40  danger for her. “I wish I could do something,” the boy thought. David, too, was having   41  of his own. The boy had a speech problem, so at school he talked   42 .
　　One day, David’s teacher announced a   43  homework. "Each of you is going to come up with an   44 ," she said. This was for "INVENT AMERICA", a national competition to encourage creativity in children.
　　An idea   45  David one evening. If only his mother’s cane didn’t slip on the ice. “What if I   46  your cane to a nail coming out of the bottom” he asked his mother.
　　“  47  the sharp end would scratch(划破) floors,” Susan said.
　　“No, Mom, I   48  make it like a ball-point pen. You take your hand off the button and the   49  returns back up.” Hours later the cane was finished. David and his father   50  as Susan used it to walk 50 feet about the   51 . Happily Susan cried out, “It   52  !”
　　In July 1999, David was  53  national winner for the "INVENT AMERICA". David began to make public appearance. Thus he was forced to communicate  54 .Today, David is nearly free of his speech problem, and his   55  is becoming well accepted.

One afternoon in January in 1998, Susan Sharp, 43, and her 8-year-old son David, were walking across an icy square, when Susan's cane(手杖) slipped on the ice. Her face   36   first into the mud. David   37   her mother's side, “Are you all right, Mom”   38  , Susan pulled herself up, “I'm okay, Honey,” she said.

Susan was falling more   39   since she had trouble walking. Every inch of ice was a   40   danger for her. “I wish I could do something,” the boy thought. David, too, was having   41   of his own. The boy had a speech problem, so at school he talked   42  .

　　One day, David's teacher announced a   43   homework. "Each of you is going to come up with an   44  ," she said. This was for "INVENT AMERICA", a national competition to encourage creativity in children.

　　An idea   45   David one evening. If only his mother's cane didn't slip on the ice. “What if I   46   your cane to a nail coming out of the bottom” he asked his mother.

　　“   47   the sharp end would scratch(划破) floors,” Susan said.

　　“No, Mom, I   48   make it like a ball-point pen. You take your hand off the button and the   49   returns back up.” Hours later the cane was finished. David and his father   50   as Susan used it to walk 50 feet about the   51  . Happily Susan cried out, “It   52   !”

　　In July 1999, David was  53   national winner for the "INVENT AMERICA". David began to make public appearance. Thus he was forced to communicate  54  .Today, David is nearly free of his speech problem, and his   55   is becoming well accepted.

One afternoon in January in 1998, Susan Sharp, 43, and her 8-year-old son David, were walking across an icy square,? ? ? ? Susan's cane(手杖) slipped on the ice. Her face ? ? ? first into the mud. David ? ? ? her mother's side, “Are you all right, Mom” ? ? , Susan pulled herself up, “I'm okay, Honey,” she said.

Susan was falling more ? since she had trouble walking. Every inch of ice was a ? ? danger for her. “I wish I could do something,” the boy thought. David, too, was having ? ? ? of his own. The boy had a speech problem, so at school he talked ?? ? .

　　One day, David's teacher announced? a ? ? ? homework. "Each of you is going to come up with an ? ? ? ," she said. This was for "INVENT AMERICA", a national competition to encourage creativity in children.

　　An idea ? ? ? David one evening. If only his mother's cane didn't slip on the ice. “What if I ? ? ? your cane to a nail coming out of the bottom” he asked his mother.

　　“ ? ? ? the sharp end would scratch(划破) floors,” Susan said.

　　“No, Mom, I ? ? make it like a ball-point pen. You take your hand off? the button and the ? ? ? returns back up.” Hours later the cane was finished. David and his father ? ? ? as Susan used it to walk 50 feet about the ? ? ? . Happily Susan cried out, “It ? ? ? !”

In July 1999, David was? ? ? national winner for the "INVENT AMERICA". David began to make public appearance. Thus he was forced to communicate ? ? .Today, David is nearly free of his speech problem, and his cane is becoming well accepted.

1.A. Where??? ?? B.while? ?????? C.when?? ???? D. then

2.A. fell????????????? ???? ?? B. touched????????????? ??? C. lay????????????? ?????? D. dropped

3.A. stood by????????????? ??? B. rushed to????????????? ??? C. looked at????????????? ?? D. ran around

4.A. Firmly????????????? ??? B. Easily????? ????????????? C. Quickly????????????? ??? D. Shakily

5.A. slowly????????????? ??? B. frequently????????????? ??? C. freely????????????? ??????? D. heavily

6.A. hiding????????????? ??? B. certainly????????????? ??? C. possible????????????? ??? D. waiting

7.A. method????????????? ??? B. disease????????????? ??? C. trouble????????????? ??????? D. hope

8.A. few????????????? ??????? B. little????????????? ??????? C. much????????????? ??????? D. more

9.A. useful????????????? ??? B. strange????????????? ??? C. common????????????? ??? D. special

10.A. appearance????????????? B. invention????????????? ??? C. experience????????????? ??? D. experiment

11.A. reminded????????????? B. encouraged?? ????????????? C. occurred????????????? ??? D. hit

12.A. fastened????????????? B. stuck????????????? ??????? C. fixed????????????? ??????? D. tied

13.A. So????????????? ??? B. And????????????? ??????? C. For????????????? ??????? D. But

14.A. might????????????? ??? B. would????????????? ??????? C. did????????????? ??????? D. need

15.A. pen????????????? ??? B. hand????????????? ??????? C. cane????????????? ??????? D. nail

16.A. watched????????????? B. supported????????????? ??? C. noticed????????????? ??? D. helped

17.A. street????????????? ??? B. ice????????????? ??????? C. yard????????????? ????? ? D. square

18.A. works????????????? ??? B. operates????????????? ??? C. succeeds????????????? ??? D. helps

19.A. declared????????????? B. received????????????? ??? C. won????????????? ??????? D. praised

20.A. more slowly????????????? B. more carefully????????????? C. more clearly????????????? D. faster

One afternoon in January in 1998, Susan Sharp, 43, and her 8-year-old son David, were walking across an icy square, when Susan's cane(手杖) slipped on the ice. Her face 1 first into the mud. David 2 her mother's side, “Are you all right, Mom？” 3, Susan pulled herself up, “I'm okay, Honey,” she said.
Susan was falling more 4  since she had trouble walking. Every inch of ice was a 5 danger for her. “I wish I could do something,” the boy thought. David, too, was having 6 of his own. The boy had a speech problem, so at school he talked 7.
　　One day, David's teacher announced a 8 homework. "Each of you is going to come up with an 9," she said. This was for "INVENT AMERICA", a national competition to encourage creativity in children.
　　An idea 10 David one evening. If only his mother's cane didn't slip on the ice. “What if I 11 your cane to a nail coming out of the bottom” he asked his mother.
　　“ 12 the sharp end would scratch(划破) floors,” Susan said.
　　“No, Mom, I 13 make it like a ball-point pen. You take your hand off the button and the 14 returns back up.” Hours later the cane was finished. David and his father 15 as Susan used it to walk 50 feet above the 16. Happily Susan cried out, “It 17 !”
　　In July 1999, David was18 national winner for the "INVENT AMERICA". David began to make public appearance. Thus he was forced to communicate 19.Today, David is nearly free of his speech problem, and his 20 is becoming well accepted.

1. 1.
   1. A.
      dropped
   2. B.
      touched
   3. C.
      lay
   4. D.
      fell
2. 2.
   1. A.
      rushed to
   2. B.
      stood by
   3. C.
      looked at
   4. D.
      ran around
3. 3.
   1. A.
      Firmly
   2. B.
      Easily
   3. C.
      Shakily
   4. D.
      Quickly
4. 4.
   1. A.
      frequently
   2. B.
      slowly
   3. C.
      freely
   4. D.
      heavily
5. 5.
   1. A.
      hiding
   2. B.
      possible
   3. C.
      certainly
   4. D.
      waiting
6. 6.
   1. A.
      method
   2. B.
      trouble
   3. C.
      disease
   4. D.
      hope
7. 7.
   1. A.
      little
   2. B.
      few
   3. C.
      much
   4. D.
      more
8. 8.
   1. A.
      useful
   2. B.
      strange
   3. C.
      special
   4. D.
      common
9. 9.
   1. A.
      invention
   2. B.
      appearance
   3. C.
      experience
   4. D.
      experiment
10. 10.
    1. A.
       reminded
    2. B.
       encouraged
    3. C.
       hit
    4. D.
       occurred
11. 11.
    1. A.
       fastened
    2. B.
       fixed
    3. C.
       stuck
    4. D.
       tied
12. 12.
    1. A.
       So
    2. B.
       And
    3. C.
       But
    4. D.
       For
13. 13.
    1. A.
       would
    2. B.
       might
    3. C.
       did
    4. D.
       need
14. 14.
    1. A.
       pen
    2. B.
       hand
    3. C.
       nail
    4. D.
       cane
15. 15.
    1. A.
       helped
    2. B.
       supported
    3. C.
       noticed
    4. D.
       watched
16. 16.
    1. A.
       ice
    2. B.
       street
    3. C.
       yard
    4. D.
       square
17. 17.
    1. A.
       helps
    2. B.
       operates
    3. C.
       succeeds
    4. D.
       works
18. 18.
    1. A.
       praised
    2. B.
       received
    3. C.
       won
    4. D.
       declared
19. 19.
    1. A.
       more slowly
    2. B.
       more clearly
    3. C.
       more carefully
    4. D.
       faster
20. 20.
    1. A.
       cane
    2. B.
       speech
    3. C.
       mother
    4. D.
       story

Did you ever look up at the moon and think you saw a man’s face there? When the moon is round and full, the shadows(影子) of the moon mountains and the lines of the moon valleys sometimes seem to show a giant nose and mouth and eyes. At least, some people think so.
　　If there were a man on the moon—instead of mountains and valleys that just look like the face of a man—what would he be like?
　　He would not be like anyone you know. He would not be like anyone anybody knows.
　　If the man on the moon were bothered by too much heat or cold the way Earth people are, he could not stay on the moon.
　　The moon becomes very, very hot. It becomes as hot as boiling water. And the moon becomes very, very cold. It becomes colder than ice.
　　Whatever part of the moon the sun shines on is hot and bright. The rest of the moon is cold and dark.
　　If the man on the moon had to breathe to stay alive, he couldn’t live on the moon because there’s no air there. He’d have to carry an oxygen tank, as astronauts do. There’s no food on the moon, either. Nothing grows—not even weeds（grass）.
　　If the man on the moon liked to climb mountains, he would be very happy. There are many high places there, such as the raised land around the holes, or craters(火山口), of the moon. Some of these rims are as tall as Earth’s highest mountains.
　　But if the man on the moon liked to swim, he would be unhappy. There is no water on the moon—just dust and rock.
　　When you think of what it’s like on the moon, you may wonder why it interests our scientists. One reason is that the moon is Earth’s nearest neighbor—it is the easiest place in space to get to.
　　Going back and forth between the moon and Earth, astronauts will get a lot of practice in space travel. Things learned on moon trips will be of great help to astronauts who later take long, long trips to some of the planets.
　　Scientists are also interested in the moon because it has no air. The air that surrounds Earth cuts down the view of the scientists who look at the stars through telescopes. A telescope on the moon would give them a clearer, closer view of the stars.（words: 411）
【小题1】What is the reason why our scientists are interested in the moon.?