问题 不定项选择题

下列现象与原电池腐蚀无关的是 [     ]

A.铝片可以露置在空气中存放      

B.黄铜(铜锌合金)制作的铜锣不易产生铜绿    

C.生铁比软铁心(几乎是纯铁)容易生锈

D.银质奖牌在空气中久置后表面变暗

答案

BC

选择题

WASHINGTON—Laura Straub is a very worried woman. Her job is to find families for foreign teenagers who expect to live with American families in the summer.

It is not easy, even desperate.

“We have many children left to place—40 out of 75,” said Straub, who works for a foreign exchange programme called LEC.

When foreign exchange programmes started 50 years ago, more families were accommodating. For one thing, more mothers stayed at home. But now, increasing numbers of women work outside the home. Exchange-student programmes have struggled in recent years to sign up host families for the 30, 000 teenagers who come from abroad every year to spend an academic year in the United States, as well as the thousands more who take part in summer programmes.

School systems in many parts of the U.S., unhappy about accepting non-taxpaying students, have also strictly limited the number of exchange students they accept. At the same time, the idea of hosting foreign students is becoming less exotic(有异国情调的).

In search for host families, who usually receive no pay, exchange programmes are increasingly broadening their requests to include everyone from young couples to the retired.

“We are open to many different types of families,” said Vickie Weiner, eastern regional director for ASSE, a 25-year-old programme that sends about 30,000 teenagers on academic-year exchange programmes worldwide.

For elderly people, exchange students “keep us young—they really do”, said Jen Foster, who is hosting 16-year-old Nina Post from Denmark.

小题1:According to the text, why was it easier for Laura Straub to find American families for foreign students?

A.American school systems were better than now.

B.The government was happy because it could gain tax.

C.Foreign students paid hosting families a lot of money.

D.More mothers didn’t work outside and could look after children.小题2:To deal with the problem in recent years, exchange programmes have to ______.

A.extend the range of host families

B.limit the number of the exchange students

C.borrow much money to pay for the costs

D.make hosting foreign students more exotic小题3:Which of the following is the best title of this passage?

A Exchange Students Keep Old People Young.

B. Idea of Hosting Students is Different.

C. Foreign-exchange Program Is Going on.

D U.S. Struggle to Find host Families.

阅读理解

阅读理解。

     China has three economic (经济的) areas: eastern China, central China and western China. Shanxi, Gansu,

Qingdao, Xinjiang, Ningxia, Sichuan, Chongqing, Yunnan, Guizhou and Tibet are in western China. It covers

5,385,700 square kilometers, making up 56.4% of Chinese territory (疆土) and is home to 230 million people.

It is 23% of China's population.   

    The western area rich in mineral (矿物的) and energy (能量) resources (资源) (water, coal, sun energy and wind power). It also has large grassland, ice and snow resources waiting to be developed. It is home to many

wild animals and plants, and it gives us with important medicinal resources.   

     The Chinese leaders have decided to develop the western area. Jiang Zemin said,"Without the development

of the western area, how can we modernize the whole country, and how can China become an economic

power?"   

     Since 1949, when the People's Republic of China was founded, it is not the first time for China to develop

its western part, China will make its western area a long-term base for economic development and use its rich

resources to develop economic power.

1. 判断正误,对的写“T”,错的写“F”。

    ( )The western area have large Greenland waiting to be developed. 

2. 翻译文中画线的句子:

     ____________________________________________________

3. Does China have three economic areas?

     ____________________________________________________

4. What's the population of the western China? 

     ____________________________________________________

5. Why did the Chinese leaders decide to develop the western area? 

     ____________________________________________________