问题 单项选择题

下列不属于电磁辐射的是()

A、X射线 

B、光波 

C、无线电波 

D、紫外线 

E、超声波

答案

参考答案:E

阅读理解

阅读理解。

     Today most Chinese teenagers are happy to be favored by two parents and four grandparents in their

families. But have you ever thought about how to take care of four to twelve old people when you grow

up and get married? This could be a problem for most Chinese youths as China is entering new stage of

an aging society.

     An aging society refers to one where lo percent or more of its population is over 60. By the end of 2007,

Chinese over 60 years old have made up 11.7 percent of the nation's total population "China is getting old

before becoming rich," said Cai Chuang, a professor at the Chinese Academy of Social Sciences. The

population increase that has powered Chinese growth for three decades will give way over the next ten years

to a rapid aging of the society. This will lead to weaker economic growth, because of a lack of labor

resources.

     As a result of the family planning policy, it is expected that the country's total working population will

decrease after 2015.

     China is not the only country getting old. More than 60 countries have become aging societies and one

in three people in the European Union is a senior citizen.

     However, experts said that China doesn't have a highly developed social security network to support the

old. Social security is an insurance program protecting those in need, including the old, the disabled and

others.

1. An aging society is a society that _____. [ ]

A. less than 10% of its population is over 60

B. 10% or more of its population is over 60

C. there are four old people in a family

D. most of its population is over 60

2. If China enters an aging society, _____. [ ]

A. there will not be enough labor resources

B. the family planning policy will be ended

C. everyone needs to take care of four to twelve old people

D. China will have a highly developed social security network

3. What does Cai Chuang mean by saying"China is getting old before becoming rich? [ ]

A. China will be an aging society, then be a developed country.

B. China will be a rich country before being an aging society.

C. An aging society will affect Chinese economy development.

D. China will stop developing because of its aging problem.

4. The passage mainly talks about _____. [ ]

A. an aging society

B. Chinese social problems

C. family planning policy

D. aging problem in China

单项选择题