问题 单项选择题

所谓弹性模量是指()

A.某结构在载荷下发生的变形

B.某结构在载荷下发生的最后长度与初始长度之差

C.在材料弹性区范围内,指应力/应变之比例常数

D.某结构被弯曲时产生的力

E.某结构被压缩时产生的力

答案

参考答案:C

阅读理解

Mr. Jenkins is a farmer. One day he drove his truck to town and on the way his truck knocked down a boy and hurt him. He took the boy to a hospital and he paid a lot of money for that, but the boy’s parents wanted to get more money from him, so they said their son couldn’t lift(举起) his right arm above his head.

Mr. Jenkins’ lawyer came and asked the boy some questions. “Now, my boy,” he said, “Mr. Jenkins’ truck knocked you down in the street.”“Yes, sir,” he said. “And you can’t lift your right arm now?”“Yes, sir,” he said. “Could you show me how high you can lift your right arm?” Slowly the boy lifted his right arm before his nose. “Poor boy,” said the lawyer, “And how high could you lift before the accident?”“Oh, I could lift it very high.” Said the boy, and the right hand went up high above his head.

小题1:Mr. Jenkins’ truck knocked down ________.

A. a lawyer            B. a boy’s father         C. a boy

小题2:The boy’s parents wanted to get ________ from him.

A. more trucks              B. more money          C. more monkeys

小题3:Mr. Jenkins’ lawyer asked the boy to ______.

A. ask some questions       B. answer some questions    C. lift his left arm

小题4:The boy said he couldn’t lift his _________ now.

A. right arm                B. left arm            C. right foot

小题5:There is _______ wrong with the boy.

A. something              B. anything                C. nothing

选择题