实验桌上有满足实验需要的如下器材：天平、砝码、体积不同的铝块、细线、大烧杯、量筒

发布时间：2017-07-04 15:14 │ 来源：www.tikuol.com

题型：实验题

实验桌上有满足实验需要的如下器材：天平、砝码、体积不同的铝块、细线、大烧杯、量筒、水。请你利用上述器材设计一个实验证明：浸在水中的物体所受的浮力大小跟物体排开水的体积成正比。请你写出实验步骤，画出实验数据记录表。

完形填空。
We live in the "computer age". Do you have a computer at home ? What __1__ you use it to do? Does your father often __2__ on the computer ? Many families have a computer . Some families have two or __3__ . Now a computer can do __4__ homework quite well. Students can do __5__ homework on the computers; bussiessmen (商人) can work __6__ on computers.people can talk with others __7__ computers. Many computers scientists ( 科学家) __8__ making (使得) the computer"think" like (像一样) people .With the __9__ of people , a computer can __10__ and write novels.
( ) 1. A. is ( ) 2. A. working ( ) 3. A. some ( ) 4. A. many ( ) 5. A. we ( ) 6. A. at home ( ) 7. A. on ( ) 8. A. to think ( ) 9. A. printer ( ) 10.A. play games	B. does B. work B. more B. lots B. their B. in home B. for B. thinking B. monitor B. doing homework	C. are C. to work C. much C. a lot of C. your C. at hospital C. in C. thinks of C. help C. talking	D. do D. works D. many D. a lot D. our D. at school D. at D. think of D. travel D. listens to music