问题 单项选择题 A1/A2型题

口腔生态系的影响因素不包括()

A.物理化学因素

B.营养因素

C.心理因素

D.宿主因素

E.细菌因素

答案

参考答案:C

解析:口腔生态系的影响因素主要包括宿主与微生物之间物质、能量及信息交流的相关因素,心理因素对机体内分泌及整体状况有影响作用,但是对口腔生态系的动态平衡影响不大,因此答案应选C。

阅读理解

阅读理解。    

     The best way of learning a language is using it. The best way of learning English is talking in English as

much as possible. Sometimes you'll get your words mixed up(混合)and people will not understand

you, sometimes people will say things too quickly and you can't understand them. But if you keep your

sense of humour(幽默感),you can always have a good laugh at the mistakes you make. Don't be

unhappy if people seem to be laughing at your mistakes. It's better for people to laugh at your mistakes

than to be angry with you, because they don't understand what you are saying. The most important thing

for learning English is: “Don't be afraid of making mistakes because everyone makes mistakes.”  

1. The writer things that the best way for you to learn a language is       .    

A. writer

B. using it    

C. listening

D. learning grammar       

2. What should you do in learning English?   

A. Be careful not to make any mistakes.    

B. Write as quickly as you can.

C. Speak English as much as you can.    

D. Laugh more often. 

3. When people laugh at your mistakes , you should       

A. not care

B. be happy    

C. feel worried

D. be unhappy  

4. When you make a mistakes , you should       .    

A. keep quite

B. get angry    

C. be kind

D. keep your sense of humour    

5. The story tells us : “      .”  

A. Only foolish(愚蠢的)people make mistakes    

B. Few people make mistakes    

C. People never make mistakes    

D. There is no one who doesn't make mistakes

单项选择题