问题 选择题

水平桌面上的烧杯内装有一定量的水,轻轻放入一个小球后,从烧杯中溢出100g的水,则下列判断正确的是(g=10N/kg)[ ]

A.小球所受浮力可能等于1N

B.水对烧杯的压强一定增大

C.小球的质量可能小于100g

D.小球的体积一定等于100cm3

答案

答案:A

阅读理解

阅读下面的材料,然后根据材料内容回答所提问题。

     "Who did this?" asked Miss Green.

     There were 30 children in the classroom and all were trying to think about not only what they did, but also

what our teacher already knew.

     "Who broke this window?"

     "Uh, Oh." I thought. I was the one who broke the window with a football. I did not mean to do it. I would

be in a lot of trouble. How could I pay for a big window like that? I didn't want to put up my hand. But I had

to tell the truth. So, I put up my hand and told the teacher I broke the window.

     Miss Green went to the bookshelf and took down a book.

     "I know how you like birds, Peter." She said. "Here is a book about birds and the book is yours now. I will

not punish you this time. But Peter, you should remember that I am rewarding (奖赏) you for your honesty (诚

实), not for breaking the window."

     I couldn't believe it! The teacher didn't punish me and I was getting my very favorite book. Now, I still use

that book, and it always reminds me of (使我想起) the lesson my teacher taught me.

     Honesty is always best.

1. Who broke the window?

    ________________________________________________________

2. How many children were in the classroom? 

    ________________________________________________________

3. Where did Miss Green take down the book? 

    ________________________________________________________

4. What was the book about? 

    ________________________________________________________

5. What can we learn from the story? 

    ________________________________________________________

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