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Since the gene, called DAF-16 in worms, was found in many animals and in humans, the finding could open up new ways to affect aging, immunity(免疫)and resistance in humans, the scientists said.
“We wanted to find out how normal aging is being governed by genes and what effect these genes have on other traits, such as immunity,” said Robin May of the University of Birmingham, who led the study.
Populations across the world are aging at a surprising pace, bringing potentially big challenges for health and social care systems. A study by Danish scientists last year found that half of babies born in the rich world today will live to celebrate their 100th birthdays. Scientists are eager to find out how people age to try to develop drugs to help them stay healthier as their lives extend.
“What we have found is that things like resistance and aging tend to go hand in hand,” May said in an interview.
May’s team compared longevity, stress resistance and immunity in four related species of worm. They also looked for differences in the activity of DAF-16 in each of the four species, and found that they were all quite distinct.
May said DAF-16 was active in most cells in the body and was very similar to a group of human genes called FOXO genes, which scientists believe play a role in the aging process.
“The fact that subtle(微妙的)differences in DAF-16 between species seem to have such an impact on aging and health is very interesting and may explain how differences in lifespan and related traits have arisen during evolution,” May said.
71. In which section may the text appear in a newspaper? 
A. Education.              B. Science.          C. Entertainment.         D. Culture.
72. According to May_________,.
A. resistance has a lot to do with aging
B. FOXO genes can be found in worms
C. genes play the same role in different species
D. new drugs will change the genes in older people
73. What can we know from the third paragraph?
A. New ways have been found to affect aging. 
B. Babies in the rich world will all live longer. 
C. Present social care systems are poorly managed.
D. Aging populations are causing more challenges.
74. From the text we know that DAF-16.
A. is a gene that is only found in worms
B. can make people live longer
C. has an effect on aging and immunity
D. has been quite familiar to scientists
75. What can be the best title of the passage?
A. Scientists Find Gene Linked to Aging
B. Population Aging Faster than Expected
C. How to Make People Live Longer
D. Gene Determines How Long We Live

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South Korean films
Beijing audience(观众) can view five new South Korean films, all with Chinese subtitles(中文字幕), until April 19 at the Tuixin Cinema on the Beijing National Library grounds.
Two other South Korean films completed their full runs(展出) at the Tuixin Cinema earlier this month.
Location:Tuixin Cinema, Beijing National Library, 39 Baishiqiao Road, Haidian District Telephone:86425566
My love, My Bride
April 15: 9: 00, 13: 00, 15: 30, 17:30, 19:30
Kim's War
April 16: 9:00, 13:00, 18:15
Because You Are a Woman
April 17:13:30, 18:15
Marriage Story
April 18:9:00, 13:30, 15:30, 18:15
Sopyonje
April 19:9:00, 13:30, 15:30, 17:30, 19:30
Leon's show
Hong Kong popstar...Leon Lai will give a personal performance at 7:30pm from tomorrow through to September 21 at the Shanghai Gymnasium. The show is to celebrate the opening of the 93 Huangpu Tourism Festival.
Tickets:60, 90, 120, 180 yuan RMB, available (有票) at 66 Jiangning Road.
Address:Shanghai Gymnasium, 1111 Caixi Road N.
Tel:29189188, 29171145, 49384952, 29197113
Russian Concert
The Shanghai Philharmonic Orchestra will put on some excellent Russian choral(合唱的) works at 7:15pm on September 26 and 27 at the Shanghai Concert Hall. They will sing Russian folk songs and a Mass under a Russian conductor who is very famous for conducting chorus(歌唱队) and has given a successful choral concert in Beijing.
Tickets:6, 8, 10, 12 yuan RMB, available at the hall's ticket office.
Address:523 Yan’an Road M. Shanghai
Tel:32275694
Korean songs
The Song and Dance Troupe of the Republic of Korea will give a Song and Dance show at 7: 30pm tonight at the Shanghai Centre Theatre.
Tickets:10, 20, 30 yuan RMB available at the theatre's ticket office.
Address:1376 Nanjing Road W. Shanghai
Tel:29798663
1.The audience in _______ can watch the performance given by Leon Lai from tomorrow through to September.
A.Beijing B.Korean C.Shanghai D.Hong Kong
2._______ will be on April 18.The cinema's telephone number is_________.
A.Kim’s War; 29798663 B.My love, My Bride; 32275694
C.Because You Are a Woman; 29189188 D.Marriage Story; 86425566
3.________will give a Song and Dance show at 7:30 pm tonight at Shanghai Centre Theatre.
A.Leon Lai, a Hong Kong pop star
B.The Shanghai Philharmonic Orchestra
C.The Song and Dance Trupe of the Republic of Korea
D.A Russian Philharmonic Orchestra
4.The address of the Shanghai Centre Theatre is________.
A.1111 Caoxi Road N B.1376 Nanjing Road W
C.523 Yan’an Road D.66 Jiangning Road
5.Which of the following statement is TRUE?
A.We can see all the South Korean films in the morning.
B.Leon’s show is to celebrate a festival.
C.There are some famous pop singers in Russian concert.
D.We can enjoy the Korean songs at the Shanghai Concert Hall.

Today, roller skating is easy and fun.But a long time ago, it wasn’t easy at all. Before 1750, the idea of skating didn’t exist. That changed because of a man named Joseph Merlin. Merlin’s work was making musical instruments. In his spare time he liked to play the violin. Joseph Merlin was a man of ideas and dreams. People called him a dreamer.
One day Merlin received an invitation to attend a fancy dress ball(化装舞会). He was very pleased and a little excited. As the day of the party came near, Merlin began to think how to make a grand entrance at the party. He had an idea. He thought he would get a lot of attention if he could skate into the room.
  Merlin tried different ways to make himself roll. Finally, he decided to put two wheels under each shoe. These were the first roller skates. Merlin was very proud of his invention and dreamed of arriving at the party on wheels while playing the violin.
  On the night of the party Merlin rolled into the room playing his violin. Everyone was astonished to see him. There was just one problem. Merlin had no way to stop his roller skates. He rolled on and on. Suddenly, he ran into a huge mirror that was hanging on the wall. Down fell the mirror, breaking to pieces. Nobody forgot Merlin’s grand entrance for a long time!
1.The text is mainly about ________.
A.a strange man B.an unusual party
C.how roller skating began D.how people enjoyed themselves in the 18th century
2.People thought Merlin was a dreamer because he _________.
  A.often gave others surprises      B.was a gifted musician
C.invented the roller skates      D.was full of imagination
3.Merlin put wheels under his shoes in order to ________ .
A.impress the party guests      B.arrive at the party sooner
C.test his invention         D.show his skill in walking on wheels
4.What is the main point the writer is trying to make in the last paragraph?
A.The roller skates needed further improvement.
B.The party guests took Merlin for a fool.
C.Merlin succeeded beyond expectation.
D.Merlin got himself into trouble.

阅读理解部分(共20小题;每小题2分,满分40分)
阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。
Education is required and free for every child in the United States. Most children start school by the age of six. They attend eight years of elementary school and four years of high school (or secondary school ).The money for free public schools comes from taxes, and each state is responsible for its own educational system .State legislatures (立法机关) set the educational requirements but leave the management of the schools in the hands of the local communities .Most states require their children to go to school until a certain age. This age varies from 16 to 18 years according to the laws of the individual state. The Federal government contributes funds to the states for additional schools and schools services.
After graduation from high school, a student can start his higher education in two –year college, a four-year college, a university or a specialized professional school----either public or private. Most colleges admit students on the basis of their high-school records. The cost of a college education is expensive in private universities, but it is much less in those supported by states and cities. Many students receive scholarships from the schools, the government, or private foundations and organizations. More than 50 percent of the college students work to help pay their college expenses.
Only 2 percent of the population of the country cannot read and write.
1、Where does the money for public schools come from ?
A. From the Federal government. B. From the state legislatures.
C. From taxes. D. From the parents of the school children.
2、What is the educational system in the United States based on ?
A. The Federal governmentB. Individual school
C. Individual state D. Local communities
3、What percentage of the population is illiterate (文盲) ?
A. 50 B. 2 C. 4 D. 6
4、How are college expenses of most students paid ?
A. They won earnings from part-time work .
B. Scholarship from the schools, the government or private foundations.
C. Taxes .
D. Both A and B.

For more than six million American children, coming home after school means coming home to an empty house. Some deal with the situation by watching TV. Some may hide. But all of them have something in common. They spend part of each day alone. They’re called latchkey children. They’re children who look after themselves while their parents work and their bad condition has become a subject of concern(关心)。
Lynette Long was once the principal(校长)of an elementary school. Said, “We had a school rule against wearing jewelry. A lot of the kids had chains around their necks with keys attached(附带)。 I was often telling them to put them inside their shirts. There were so many keys that it never came to my mind what they meant.” Slowly, she learned they were house keys.
She and her husband began talking to the children who had them. They learned of the effect working couples and single parents had on their children Fear is the biggest problem faced by children at home alone. One in each three latchkey children the Longs talked to reported being scared(害怕).Many had nightmares and were worried about their own safety.
The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall, under a bed, in a closet. The second is TV. They’ll often play it high volume.
It’s hard to get statistics(统计数字)on latchkey children, the Longs learned. Most parents are slow to admit they leave their children alone.
1. The main idea about “latchkey” children is that they ______.
are growing in numbers
are also found in middle-class neighborhoods
watch too much TV during the day
suffer problems from being left alone
2. Which sentence in the second paragraph is the topic sentence?
We had a school rule against wearing jewelry.
A lot of kids had chains around their necks.
I was often telling them to put them inside their shirts.
She learned they were house keys.
3. The main feeling these children have when they are at home by themselves is ______.
A. tiredness B. freedom C. loneliness D. fear
4. The word “nightmare” in the third paragraph probably means______.
A. night suit B. night habit
C. terrible dream at night D. staying up at night
5. We may draw a conclusion that_______.
latchkey children enjoy having such a large amount of time alone
latchkey children try to hide their feeling
latchkey children often watch TV with their parents
it’s difficult to find out how many latchkey children there are

The following table shows some results of a survey (调查)in which 800 Japanese school pupils were asked to give their impressions(印象)of their classroom teachers. The pupils’ impressions were found to differ depending on whether the teacher was new (with less than three years’ experience), middle-standing(ten to twenty years), or veteran(有经验的)(twenty to thirty years). The numbers in the table show the percentage of the pupils who answered “very satisfied” or “extremely satisfied” for each question item (项目)

Question Items
New
Middle-standing
Veteran
1.Shows sense of humor in class
2.Explains clearly
3.Teaches in a relaxed(放松的)manner.
4. Writes neatly on the blackboard
5. Lets pupils ask questions in class
6. Makes checks in notebooks
7. Speaks loudly and clearly
8. Treats pupils equally
9. Cares about pupils opinions
10. Spends time with pupils between classes
42
33
30
9
18
22
45
43
47
25
56
58
46
43
30
30
85
58
43
10
70
68
65
56
47
43
54
42
17
6


1. The pupils’ evaluation(评价)can be said to rise at a steady rate(比率)as their teachers’ experience increases in Question Items______.
A. I and 4 B. 3 and 5 C. 6 and 8 D. 9 and 10
2. In contrast(对比)to the new teachers, the middle-standing and veteran teachers seem to have made a remarkable(显著的)improvement in their ability to _______.
A. be fair to any pupil B. evaluate pupils’ progress
C. present materials clearly D. understand and play with pupils
3. Pupils seem to regard the new and the middle-standing teachers as being more_____.
A.relaxed in class than the veterans
B.interested in pupils’ ideas than the veterans
C.neat in appearance than the veterans
D.skilful at explaining than the veterans
4. Which of the following statements is true according to the table?
A.In the new teachers’ classes, pupils seem to ask questions more freely.
B.Pupils seem to be quite satisfied with the amount(量)of time their teachers spend with
them between classes.
C.The evaluation of the middle-standing teachers is lower than that of the veterans in seven
items.
D.Though veterans do not play games with pupils during breaks, their teaching is rated
highly.

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