问题 单项选择题

小鼠一般垫料以阔叶林木的刨花或锯末为宜,也可用玉米芯加工粉碎除尘后使用。在实验中切忌用()刨花做垫料,这类刨花发出具有芳香味的挥发性物质,可对肝细胞产生损害,影响药理和毒理方面的实验结果。

A.针叶木

B.阔叶林木

C.玉米芯

D.纸质

答案

参考答案:A

阅读理解

阅读理解。

    Jenny and Henry were born on the same day and they look the same. Their father has a taxi (出租车) and

he is busy all the time. He goes out early in the morning but comes back when his children go to bed. He gets

a lot of money, but he has no time to concern them with their studies.

    The two children study in the same class. Jenny works hard at her lessons, but her brother doesn't like

studying. He only likes playing. He is not good at writing compositions (作文). 

    One day Mrs. Cook tells her class to write a composition "My Mother". After supper Jenny finishes writing

in her exercise book and then goes to help her mother do some housework. But Henry goes to play football.

When night falls (降临), he comes back to watch TV. Then he remembers (记得) the composition. But he

doesn't know how to write it. He thinks hard and at last he finds a way. He copies (抄写) Jenny's composition.

    Two days later, Mr Cook asks Henry, "Can you tell me why yours is the same as Jenny's?"

    "Yes, I can, Madam," answers Henry. "We have the same mother."

1. Jenny's father can't concern them with their studies because            . [ ]

A. he doesn't like them

B. he is very busy

C. he is a taxi driver

D. he only wants more (更多的) money

2. The underlined (划线的) word "concern" in the story means (意思是)            . [ ]

A. 涉及

B. 关系

C. 当然

D. 关心

3. Henry isn't good at writing composition because            . [ ]

A. he doesn't like studying

B. he likes listening to music

C. he isn't clever

D. he's too young to do it

4. What does Jenny do after she finishes the composition? [ ]

A. Go shopping.

B. Watch TV.

C. Do housework.

D. Go to bad.

5. Henry copies Jenny's composition because            . [ ]

A. he plays football after supper

B. he forgets (忘记) to write it before he goes to bed

C. he doesn't know how to write it

D. they have the same mother

单项选择题