问题 选择题

小球从离地板5m高处自由落下,又被地板竖直弹起,在离地板2m高处被接住,则关于小球通过的位移和路程的说法中正确的是(  )

A.位移大小为3m,方向向下;路程为3m

B.位移大小为2m,方向向上;路程为7m

C.位移大小为3m,方向向下;路程为7m

D.位移大小为7m,方向向下;路程为7m

答案

小球从离地板5m高处落下,通过的路程是5m,被地板弹回,在离地板2m高处被接住,通过的路程是2m,则小球通过的总路程是7m.

起点到终点的线段长度是3m,则位移大小是3m,方向向下.

故选C

阅读理解

Dear Tom,

How are you? I’m in a new school in China this term. And I’m writing to you in my school now. This school is big and nice. There are more than two thousand students in my school. I like the teachers. They are all kind to me. And they can speak English well. So there is no problem to talk with them. My classmates are very friendly. They teach me Chinese and I teach them English.

We have many subjects at school. I like Chinese, music, PE and more. And my favorite subject is art. It’s really interesting. And my art teacher is very fun. He can draw well. I don’t like math. It’s too difficult. After school, I like playing basketball with my new friends. What a fun time to play with them!

We have no classes on weekends. I often go to movies with my parents. Sometimes I stay at home and watch TV. My parents want me to learn Chinese. Sometimes I go shopping. The food is so delicious in Chengdu. I like the food. And the people are very friendly. I love China. I love Chengdu.

Please write to me soon!

Yours                                      Jack

小题1:Jack writes this letter to __________.

A. pen pal            B. old friend          C. parents

小题2:Jack is in a ____________.

A. English school        B. Chinese school        C. small school

小题3:Jack’s teachers _____________.

A. teach him English     B. only teach him Chinese   C. are good to him

小题4:Jack help his new classmates with _________.

A. English          B. Chinese          C. music

小题5:Jack likes _________ after school.

A. playing basketball       B. swimming        C. going shopping

单项选择题