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问题 选择题

Haven’t I told you that you ______ have the answer tomorrow morning?

A．will

B．shall

C．should

D．would

答案

答案：B

改错题

This term I’m very busy with a heavy load of lesson. Sometimes my math homework took up too much time that I could only spend a few time on English words. One day, my English teacher gave us a test, and I was complete puzzled. I suddenly had an idea: look up for the new words on the Internet on my mobile phone. Went through the words quickly, I was secretly delighted with my little game while someone tapped me on the shoulder. It was my English teacher! She was staring at me! I knew that it was the kind silent warning. She felt ashamed and was determined never cheat in the test again!

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实验题

（1）观察现象一：图1是你很熟悉的物理演示实验，请写出你从图中观察到的两个现象及其对应的物理知识。

例：现象：塑料片飞出后会下落。

       物理知识：塑料片受到重力。

     现象：______________________________　　　　　　　　　　　　　

     物理知识：__________________________　　　　　　　　　　　　　　　　　　　　　　　

     现象：______________________________　　　　　　　　　　　　　　　　　　　　　　　　

     物理知识：__________________________　　　　

（2）观察现象二：某班同学利用如图2所示装置设计实验体验大气压的存在。先在易拉罐中放入少量的水，再用酒精灯给易拉罐加热，待罐口出现白雾时，用橡皮泥堵住罐口，撤去酒精灯，让易拉罐自然冷却。观察现象。同学们根据_________现象可体验到大气压的存在。请你举一个生活中应用大气压的事例：________________________________ 。　　　　　　　　　　　 　　　　　　

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