问题 单项选择题

( )是把污染源罩起来,抽出污染空气,所需风量小,经济有效,并便于净化回收。

A.全面排风

B.局部排风

C.隔离排风

D.替代风

答案

参考答案:B

解析:通风分局部排风和全面通风两种。局部排风是把污染源罩起来,抽出污染空气,所需风量小,经济有效,并便于净化回收。全面通风则是用新鲜空气将作业场所中的污染物稀释到安全浓度以下,所需风量大,不能净化回收。

阅读理解

阅读理解。

   Men are spending more and more time in the kitchen, according to a report from Oxford University.

   Women, who, thirty years ago, spent under two hours a day on cooking, now spend just one hour and

seven minutes,  but they still spend far more time in the kitchen than men.

    "I was married in 1974. When my father came to visit me a few weeks later I was wearing an  apron (围裙). When  I  opened  the door, he laughed at me," .said Prof. Gershuny. "That would never happen

now. "

     The report also makes clear that the family meal is much healthier than before,  because of people's

learning how to cook.

   Two-thirds of adults say that they come together to share at least three times a week, even if it is not

necessarily around a kitchen or dining room table.

     Anne Murphy said, "The evening meal is still clearly important to family life and more people are now

talking about family time. We think we'll return to traditionalism (传统主义). "

   However, Prof. Gershuny  said that the family meal was now hardly eaten by all of its members around

a table - with many "family meals" in fact taken on the sofa in the sitting room, and shared by different

members of the family.

1. Which of the following statements is  true?  

A. Women spend less time on cooking now.

B. Women spend more time on cooking now.

C. Women spend less time than men on  cooking.

D. Men spend more time on cooking than  women. 

2. If a man did some cooking many years  ago, others might_____. 

A. enjoy him            

B. laugh at him

C. stop him              

D. learn from him

3. Why is the family meal much healthier  now?

A. Because more and more men enjoy  cooking.

B. Because people learn how to cook.

C. Because there are more family meetings.

D. Because women are better at cooking.  

4 The underlined words "evening meal"  refer to "_____". 

A. breakfast              

B. lunch

C. supper                

D. afternoon tea  

5 People have "family meals" in order  to_____. 

A. sit at table

B. play games

C. talk about something

D. have a good time

单项选择题 A1/A2型题