閱讀短文，根據(jù)其內(nèi)容回答問(wèn)題。
These days, many Chinese people are happy about a piece of news. What is it? China may become the second largest economy (經(jīng)濟(jì)體) in the world. It’s only behind the US.
But is China the second richest country, too?
No. The economy is like a cake. The US, Japan and China each makes one. China makes the second biggest cake. But lots of people have to eat it. Why? There are 1.3 billion people in China. And there are only 300 million people in the US and 127 million in Japan. So, in China, each person only gets a very, very small piece of cake. But people in the US and Japan have bigger pieces.
China is not as rich as the US and Japan. For example, in the US, in every 100 people, 75 can surf the Internet; in Japan it is 74 in 100. But in China, only 26 people in 100 use the Internet.
China’s large economy brings good things. People in China have more jobs and money. We also have more influence (影響) in the world.
【小題1】China is the second largest economy in the world, isn’t it?
                                                     
【小題2】Why isn’t China as rich as the US and Japan?
                                                     
【小題3】How many people in 100 can use the Internet in China?
                                                     
【小題4】Who can get bigger pieces of cake, Chinese or Americans?
                                                      
【小題5】China’s large economy brings good things. What are they?
                                                      

On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could read the whole “map” of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own.

People have been trying to understand the human body for a long time. In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named “genes” in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language.

In 1961, Marshall Nirenberg and Johann Matthaci found a message in DNA showing how DNA tells the cell（細(xì)胞）to build its parts. Scientists have now found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one “word”   means, we can help save more people from several illnesses.

Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technic wasn’t limited（限制）in use.

1.When did we first know why we look like other people m our family?

A．In 1860           B．In 1953           C．In 1961           D．In 2000

2.What does the underlined word “ genes” mean?

A. The “map” of DNA.                B. A special language.

C. Small parts of DNA.                D. DNA

3.What did the two scientists first discover in 1961 ?

A. The “map” of DNA.               B. A new illness.

C. The language of DNA.              D. A message of DNA.

4.What can we do if we understand some “ words” of the language inside the body

A．Make people get new jobs.

B．Make medicine for illnesses.

C．Make maps of human.

D．Make people less attractive.

5.What do people think about this work’?

A．It can cause good or bad results.

B．It can cause only good results.

C．It can cause good results but won’t work.

D．It can cause only bad results.

It was sunny and hot all day. I went to the beach with my friends. We had a lot of fun __21__at sea(大海).In the afternoon, we__22___. There ___23__many people in the museum. It was crowded, so I____24__ really enjoy it. __25___home. I found a little girl __26___in the street. She __27__and I helped her ___28__her mother. It made me feel very happy. I didn’t any money ____29__a taxi, so I walked back home. I was really___30____.

Here are some facts about homes in the United States and the people who live in them. In the early 1990s, about 50% of the Americans owned their homes and the rest rented (租) their homes. The rented homes were usually apartments (公寓).

74% of the people in the US make their homes in or around cities. 26% live in the country. Dogs live in about 40% of all homes in the US. About half that number have cats.

Families in the US are becoming smaller. On the average (平均), 2.64 people lived at home in early 1990s. In 1960, the average was 3.5.

Half of the teenagers in the US have their own bedrooms.

An American moves, on the average, twelve times in his or her life. In Japan a person moves about five times, and in England a person moves eight times.

1.Most Americans live ________, according to the passage.

     A. in or around the cities                            B. in cities

   C. around cities                                         D. in the country

2.How many American families own a cat?

     A. About 40%.                                         B. About 20%.

   C. About 74%.                                          D. About 26%.

3.On the average, there were ________ people in an American family in 1994.

     A. more than 3                                          B. only 3.5

   C. less than 2                                            D. about 2.64

4. ________ in the US have their own bedrooms.

     A. All of the people                                   B. Most of the children

   C. Half of the teenagers                             D. Only some of the teenagers

5.What can we learn from the passage?

      A. In the early 1990s, most of the Americans owned their homes.

      B. Families in the US are becoming bigger and bigger.

      C. A Japanese moves more often than an American.    

      D. An American moves more often than an Englishman.