2、有关化学用语正确的是　 　　　　　　　　　　　　　　　　　　　　　 (　　 )

A．溴乙烷的分子式C₂H₅Br　　　　　 　　 B．乙醇的结构简式C₂H₆O

C．四氯化碳的电子式　 　　　　 D． 乙烯的最简式C₂H₄

1、1828年德国化学家维勒从无机物制得了有机物，打破了只能从有机物取得有机物的学说，这种有机物是　　　　 　　　　　　　　　　　　　　　　　　　(　　 )

A.纤维素　　　　　　 B.树脂　　　　　　 C.橡胶　　　　　　 D.尿素

4．The passage is mainly about ______ .

　　 A．the characteristic of the twelve months

　　 B．the influence of the sun on people?s character

　　 C． the relations of sun, moon and stars

D．the relationship between people?s characters and their birthdays

3． Who have strong wills and quick at thinking?

　　 A．People born between March 21 and April 20.

　　 B．People born between April 2l and May 20.

　　 C．People born between May 21 and June 21.

　　 D．People born between June 22 and July 22.

2．According to the passage, which of the following might be true?

　　 A．People born in spring are all clever.

　　 B．Those who become wealthy are probably born in spring.

　　 C．Children born in September may have many friends.

　　 D．Important people are usually born in autumn.

1．The author’s purpose in writing this is probably ______.

　　 A．to provide reference for fortune tellers

　　 B．to help parents cultivate(教育) their children?s character

　　 C．to tell the reason for different characters among people

　　 D．to provide reference for people to check the characters

9．The doctors ______ the medicines to the people in the flooded area.

　　 A．distinguished　 　 B． chose　 　　　　　　 C．annoyed　 　　　　　 D．distributed

8．These clothes ______ a tropical climate.

　　 A．are not used to　 　　　　　　　　　　　　　　　　 B． are not suited to

　　 C． don’t rely on　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 D．don’t serve

7．A complete investigation into the cause of the accident should lead to improved standards and should ______ new operating procedures.

　　 A． result in　 　　　　 B． match with　 　　 C． subject to　 　　　 D． proceed with