We know that trees are useful in our everyday life. They   1  us many things, such as wood, oxygen, rubber, medicines and many other things. They can  2  tell us a lot about our climate. The following are the reasons. If you   3  a tree, you can see that it has many rings. Most trees grow one new ring   4  year. Because of the reason, we know   5  a tree is. A tree over a hundred years old means that it has more than a hundred   6 . When the climate is dry or very cold, the trees do not grow very much and their rings are usually   7 . When it is wet and warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the   8  changed suddenly. If we look at the rings on this tree, we can learn about the   9  for a hundred years. We can see  10  our climate is changing today.

　 We know that trees are useful in our everyday life. They 1 us many things, such as wood, oxygen, rubber, medicines and many other things. They can 2 tell us a lot about our climate. The following are the reasons. If you 3 a tree, you can see that it has many rings. Most trees grow one new ring 4 year. Because of the reason, we know 5 a tree is. A tree over a hundred years old means that it has more than a hundred 6. When the climate is dry or very cold, the trees do not grow very much and their rings are usually 7. When it is wet and warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the 8 changed suddenly. If we look at the rings on this tree, we can learn about the 9 for a hundred years. We can see 10 our climate is changing today.

1. 1.
   1. A.
      tell
   2. B.
      ask
   3. C.
      give
   4. D.
      get
2. 2.
   1. A.
      not
   2. B.
      too
   3. C.
      to
   4. D.
      also
3. 3.
   1. A.
      cut across
   2. B.
      climb up
   3. C.
      walk past
   4. D.
      look at
4. 4.
   1. A.
      every
   2. B.
      many
   3. C.
      the first
   4. D.
      from
5. 5.
   1. A.
      how big
   2. B.
      how long
   3. C.
      how old
   4. D.
      how much
6. 6.
   1. A.
      trees
   2. B.
      leaves
   3. C.
      people
   4. D.
      rings
7. 7.
   1. A.
      big
   2. B.
      thick
   3. C.
      small
   4. D.
      thin
8. 8.
   1. A.
      climate
   2. B.
      trees
   3. C.
      rings
   4. D.
      animals
9. 9.
   1. A.
      people
   2. B.
      things
   3. C.
      climate
   4. D.
      life
10. 10.
    1. A.
       how
    2. B.
       why
    3. C.
       when
    4. D.
       while

　缺词填空。（每空一词）（10分）
　1.　Can you give me some __________(建议) about learning math?
　2.　Kate often feels________(紧张不安的) when she talks to me．
3.　I like history，but I don’t like__________(地理)．
4.　There are many_______(语言)in the world. Most of them aren’t used widely．
　5.　Do you know the________(长)of the Yellow River?
　6.　Do you like your trip? Is it                  (令人愉快的).
　7.　The girl with long hair is the__________(苗条的)of the three．
　8.　Liu Xiang and Yao Ming are both my　h_________．Do you agree with me?
　9.　We don’t know this song very well because it’s　u________.
10.　He is________ (1ike to give money or things to others)to his friends．

　　Expert(专家)say that students usually need eight to ten hours’ sleep at night, but most Chinese students do not get enough sleep. Some Chinese parents are usually glad to see their children studying late. They will think their children work very hard, but not all parents are happy about this. Once a mother told us that every morning her 10-year-old boy put up one finger(手指)with his eyes still closed, begging(请求)for one more minute to sleep. Like thousands of students “early birds” in China, he has to get up before six every morning.
　　 A report shows that without a good night’s sleep, students seem to be weaker(虚弱)than they should be. Many students have fallen asleep(睡觉) during class at one time or another. Too much homework is not the only reason why students stay up late. Some watch TV or play the computer games late into the night.
　　 Experts have ever said that the students should develop good study habits. So some clever students never study late, they are able to work well in class.
【小题1】The 10-year-old boy begged for more minute to sleep because__________.