问题 选择题

生活中的下列做法错误的是(  )

A.进入久未开启的菜窖,先用蜡烛做灯火实验

B.为了节省开支,用便宜的工业用盐代替食用盐

C.餐桌上向酒精炉里添加酒精,应先熄灭酒精炉

D.厨房煤气管道漏气,立即关闭阀门并开窗通风

答案

A、久未开启的地窖中可能存有大量的二氧化碳,热氧化铁气体不支持呼吸,所以进入前要进行灯火实验;故正确;

B、工业用盐可能含有对人体有毒害和致癌作用的亚硝酸盐,所以工业用盐不可代替食用盐,故错误;

C、为防止因直接向燃着的酒精灯内添加酒精而引起的失火,所以添加酒精时,要熄灭酒精炉,故正确;

D、燃气管道泄漏的气体有可燃性,有爆炸的危险.若发生漏气应立即关闭阀门并开窗通风,故正确.

故选B.

单项选择题
阅读理解

B

King Solomon, the most powerful and the most respected Israeli king, once said, “Kings take pleasure in honest lips; they value a man who speaks the truth.” He wrote a book called Proverbs, which is part of the Bible and studied carefully even today.

There was a college graduate in Wuhan who shared his own experience about being truthful. It is a good lesson for everyone who reads of his experience.

Mr. Lou went to work for a factory making electrical machines. On the first day of his job, he accidentally broke an electrical machine because of his inexperience. Since it was very expensive, it caused Mr. Lou to become frightened about what his boss might say to him. The machine was worth his six months’ salary.

He decided to try and repair it. After working on it for about 2 hours, he could make it function, but it didn’t work as well as it should.

After spending a restless night, Mr. Lou felt he must tell his boss the truth. The next morning, he showed the broken machine to his boss nervously, for he didn’t know what the result would be. To his great surprise, the boss praised him for being truthful and even later gave him a rise.

Mr. Lou never forgot this dramatic experience. He had to make the choice of hiding his mistake by saying nothing or of telling the truth. The boss had found an honest new employee who would prove later to be of great value to the company.

Being honest makes a person worthy of trust, which is so important for a family, a company, and even a country.

60. The underlined part “honest lips” (in Paragraph 1) most probably refer to “_____”.

A. people who speak the truth               B. lips of honest people      

C. people loyal to their king                  D. lips of people loyal to the king

61. What did Mr. Lou do first after he broke the electrical machine?

A. He hid it in a secret place.                B. He reported it to the boss at once.

C. He repaired it himself.                   D. He replaced it with a used one.

62. What can we learn from the passage?

A. Mr. Lou was excited and happy to have the machine repaired.

B. Mr. Lou told the boss the truth in order to get a rise later.

C. The boss was disappointed and sad about the broken machine.

D. The boss thought honest employees were of great value to the company.

63. By telling the story of Mr. Lou, the author wants to show that _____.

A. mistakes can sometimes bring good luck to a person

B. being truthful is a most important character of a person

C. employees should always be careful with their work

D. experience is important for an employee to do his work well