问题 选择题
下列说法中,正确的是(  )
A.a为有理数,则a+5一定大于5
B.a为有理数,则-a+|a|可能为负数
C.b为有理数,则a+b>a-b
D.b为不等于0的有理数,则ab与
a
b
同号
答案

A、若a为负有理数,则a+g一定小于g,故本选项错误;

B、a为有理数,则-a+|a|一定大于或等于0,不可能为负数,故本选项错误;

C、若b为负有理数,则a+b<a-b,故本选项错误;

D、b为不等于0的有理数,则ab与

a
b
同号,故本选项正确.

故选D.

单项选择题 A1/A2型题
阅读理解

Confucius (551BC~479BC), a Chinese philosopher,one of the most influential men in the history of China. Confucius was born in a noble family in the state of Lu. However,his parents were poor. His father died when Confucius was only three  years old. In 527 BC he began his life as a teacher,usually traveling about and teaching the followers that were around him. Confucius worked as an official of the state of Lu. However,he soon left office to travel and teach. In 484 BC he returned to Lu,where he lived until his death.

Living in the turbulent(动荡的)period,Confucius believed that people must go back to the principles of the ancient wise men. He therefore lectured to his pupils on the classics and taught them how to behave properly in society. Confucius did not write down the principles of his philosophy. The Analects (《论语》),a work written by some of his followers,is considered the most faithful source of information about his life and teachings.

The teachings of Confucius were practical and moral,rather than religious. He said that man's behavior should be based on five virtues:kindness, uprightness(义),decorum(礼),wisdom and faithfulness(信).He asked everyone to fulfill their duties carefully toward the state. In the centuries after his death,his teachings,known as Confucianism,had a more powerful influence on the Chinese nation.

小题1:At about what age did Confucius begin his teaching?______

A.51.

B.27.

C.48.

D.24.小题2:The Analects is________.

A.considered to have been written by Confucius

B.about the principles of the ancient wise men

C.about Confucius' life and his teachings

D.considered to be practical in tricks and evils小题3:It can be inferred that________.

A.Confucius was born in a very rich family

B.Confucius served as an official in his lifetime

C.the teachings of Confucius are religious

D.Confucianism was more popular after Confucius died