1、动量：运动物体的质量和速度的乘积叫做动量．P=mv

是矢量，方向与速度方向相同；动量的合成与分解，按平行四边形法则、三角形法则．是状态量；

通常说物体的动量是指运动物体某一时刻的动量(状态量)，计算物体此时的动量应取这一时刻的瞬时速度。

是相对量；物体的动量亦与参照物的选取有关，常情况下，指相对地面的动量。单位是kg·m/s；

84. easy 改为easily　　 85. or 改为 and

书面表达

Studying　 Abroad

In recent years, studying abroad has been popular．Tens of thousands of Chinese middle school students have gone to foreign countries to study．Many people are trying their best to go abroad．

There are many advantages in attending schools abroad．First, students who study abroad can make friends with people of different cultures．Second, they can learn much more advanced knowledge of science and technology from foreign countries．Third, they can learn foreign languages more quickly．

However, there are some disadvantages．Most of the students are too young to live by themselves without any living experience．Besides, being far away from their motherland, they may feel lonely and homesick．Also ,the costs are much higher there than at home．

In spite of these, advantages are more than disadvantages．

80. lived 改为living　 81. 正确　 82.where 改为which 或that　　 83. by 改为with

76. 去掉year　　 77.am 改为was　　 78. interests 改为interest　 79 kinds后加of

75. According to the writer, what is the most important point in bringing up a child?(回答词数不超过8个)

Parents should be supportive to their children.

第四节. 短文改错(每题1分,共10题10分):　　　　　　　　　

　　 Last year summer I went to London for a holiday.　　　　　　　 .76.____________

I spent just a week there. While I am staying there I visited　　　　　　 77. ___________

many places of interests and had lots of friendly talks with　　　　　　 .78. ___________

all kinds people. I found a very interesting thing there.　　　　　　　 .79. ___________

One of my Chinese friends who have been lived in London　　　　　 .80. ___________

told me that many English families don’t like to buy new　　　　　　 81. ___________

television sets. There are many shops where can lend you　　　　　　 82. ___________

TV sets. The shops are often filled by a great many people.　　　　　　 83. ___________

Here they can borrow a set very easy, and it costs them only　　　　　 84. ___________

a little. Then it can be taken home or used for long.　　　　　　　　　 85. ___________

第五节：写作 (25分)

面对中学生的"出国热"，人们有不同的看法。请你以Studying Abroad为题，根据下面的信息，谈谈自己的看法。

答案部分：

21-25 BDADB　　　　　　　　　　 26-30 DCCDA　　　　　　　　　　 31-35 DACBC

36-45　 CBADB　 CDACB　 46-55　 DADBC　 BADDC

56-60 DBBDC

短文改错:

74. What do you think is Wiston’s worry?(回答词数不超过6个)

　　　 He may disappoint his parents.

73. According to the writer, why is Michael lucky?(回答词数不超过8个)

　　　 His parents help him in a sensible way.

54.(　　 ) A. game　　　 B. fun　　　　　　　　 C. match　　　 　D. process

53.(　　 ) A. and　　　　 B. since　　　　　　　 C. until　　　　 　D. while