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问题 选择题
天气预报“明天下雨的概率是90%”，下面（　　）这个判断是正确的．
A．明天肯定下雨B．明天不大会下雨
C．明天下雨的可能性很大
答案

由分析知：明天的下雨的概率是90%，说明明天下雨的可能性很大；

故选：C．

填空题

基础知识。

1. There is a big football ________________(a place for people to play football) in my school.

Look, some boys are playing football there.

2. In China, the summer holiday usually ______ (结束) before September 1st.  

3. Do you often ________________(借) books from the library?

4. It is good for us to do morning ___________________(锻炼)every day.

5.Lucy thinks it is ________ (困难的)to learn English. But I don't think so.
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选择题

以下实验基本操作正确的是（　　）

A．

用滴管滴液

B．

加热液体

C．

向试管加固体

D．

熄灭酒精灯
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