2.决定元素种类的是

A．中子数　　　　 　B．质子数 　　　　　C．电子数 　　　　D．相对原子质量

1.下列变化中，属于物理变化的是　　　　　　　　

A．蜡烛燃烧　　　　 B．牛奶变酸　 　　　C．水结冰　 　　　D．食物腐败　

第二节　 书面表达(满分30分)

诚信是处世之本。但是在中学生当中，考试作弊、抄袭作业、欺骗家长和老师等现象屡见不鲜。请你对以上种种现象作简要描述，并以How to guarantee honesty为题，从三个方面，谈谈如何保证学生做到诚信。

注意：

1．词数：120左右；

2．开头和结尾已给出，不计入总词数。

How to guarantee honesty

As we all know, honesty is always an essential principle of living. Much to our regret, however, …

Honesty is the best policy, which is what we should keep in mind all the time.

第一节　 短文改错(满分10分)

In many western countries heavy industry is high developed. The difference between heavy and light industry are based on the nature of the goods produced. Heavy industry produce machines while light industry uses machines produce smaller objects required for various purpose in our home and offices. The growth of industry in a country depended on the general level of economic or industrial development. In its beginning, industrialization is like to be cheap. To decrease costs, industrialists in an area usually reliable on local supplies of coal and electric power for their operations.