问题 选择题

下列六种物质:①Na2O  ②Na2O2③NaCl ④Na2CO3溶液 ⑤NaOH

⑥NaHCO3,其中不能与CO2反应的是

A.①③

B.②④

C.③⑥

D.⑤⑥

答案

答案:C

题目分析:氧化钠和CO2反应生成碳酸钠;CO2和过氧化钠反应生成碳酸钠和氧气;和碳酸钠溶液反应生成碳酸氢钠;和氢氧化钠反应生成碳酸钠或碳酸氢钠;但CO2和氯化钠、碳酸氢钠不反应,答案选C。

点评:该题是基础性知识的考查,属于常规性知识的考查。学生只需要记住它们的化学性质即可,学生不难得分。

阅读理解

Koeler took special notice of the tall woman who was nicely dressed, but she was wearing ugly, thick-soled(厚底) shoes.

  Now the woman was taken to a room for questioning. There it was found that the soles of the shoes were hollow(中空的). They were opened. Some diamonds fell out on the floor. Their total weight was 3377 carats(克拉).

  The young woman broke down in tears. Then she told her story. For years she had dreamed of coming to live in America, she said. At last she had managed to get the papers she needed to come to the U.S. Then a strange man called on her. He said he would pay for her trip and give her one hundred dollars. All she had to do was to smuggle the diamonds past the U.S. Customs. The man gave her the shoes and also bought her a plane ticket. Just before she got on the plane, he gave her an envelope. He said that it was the hundred dollars he had promised.

  The weeping woman handed the envelope to Koeler. He tore it open. There was only eighteen dollars. She was cheated. In the end the woman was trialed and sentenced to eighteen months in prison for her part in the smuggling.

60. Where did the story happen?

A. At an airport.                           B. At a police station.

C. At a railway station.                     D. In a custom office in China.

61. The underlined word “smuggling ” in this passage most probably means_____.

A. 偷税              B. 盗窃          C. 走私                         D. 交换

62. The woman had agreed to smuggle the diamonds______.

A. in order to get the papers she needed                           B. in hope of selling them

C. in return for some money and a free trip D. so as to share them with the man

63. Which is the right order of the events(事件)given in the passage?

a. She wanted to live in the U.S.

b. She arrived in the U.S.

c. She was given an envelope.

d. She was given a plane ticket.

e. She was found out.

f. She was put into prison.

A. a, d, c, b, e, f      B. a, b, c, e, f, d 

C. a, c, d, b, e, f                    D. a, b, d, c, e, f

单项选择题