Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic(流行病) of sleepiness in the nation.“I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to,” says Dr.David.Even people who think they are sleeping enough would probably be better off with more rest.

    The beginning of our sleep-deficit(lack)crises can be traced back to the invention of the light bulb a century ago.From diary entries and our personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night.“The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark.” By the 1950s and 1960s, the sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock.“People cheat in their sleep, and they don’t even realize they’re doing it,” says Dr.David.“They think they’re okay because they can get by on 6.5 hours, when they really need 7.5, 8 or even more to feel ideally energetic. ”

    Perhaps the most merciless robber of sleep, researches say, is the complexity of the day.Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programs.“In our society, you’re considered dynamic if you say you need only 5.5 hours’ sleep.If you’ve got to get 8.5 hours, people think you lack drive and ambition.”

    To determine the consequences of sleep-deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier.“We’ve found that if you’re in sleep deficit, performance suffers,” says Dr.David.“Short-term memory is weakened, as are abilities to make decisions and to concentrate.”

1.What is the main topic of the passage?

    A. The history of people’s sleeping patterns.

    B. The epidemic of sleepiness in the modern times.

    C. Research on the causes and consequences of sleep-deficit.

    D. The minimum of our sleeping hours.

2.Which of the following is Dr.David’s opinion?

    A. People’s metal power suffers if they are lacking in sleep.

    B. Some people can remain energetic with only 6.5 hours’ sleep a night.

    C. If they get 8.5 hours’ sleep, people will be full of drive and ambition.

    D. People who think they are sleeping enough are better off than those who don't.

3.People in the 18th and 19th centuries slept about 9.5 hours a night because _______.

    A. they had no electricity

    B. they knew what was best for their health

    C. they were forced by their parents to do so

    D. they were not so dynamic and ambitious as modern people are

4.The major cause of sleep-deficit of modern people is _______.

    A. the endless TV programs in the evenings and the internet

    B. the heavy work load of the day

    C. the sufficient energy modern people usually have

    D. loud noises in the modern cities

5.What does the word “subjects” in paragraph 4 mean?

    A. Person or thing that is being discussed or described.

    B. Branch of knowledge studied in a school.

    C. Person or thing being treated in a certain way or being experimented on.

    D. Any member of a State apart from the supreme ruler.

 

The people below are all looking for someplace to visit in Beijing. Read the following descriptions and help them make proper choices.

65______. Stephen studies art in Beijing University. He shows great interest in paintings and he is especially interested in those oil paintings that reflect the variety of life.

66______. Mark has just come to China and he is very interested in Chinese culture. He has been waiting for a long time to have a chance to see a wonderful Chinese acrobatic (杂技的)performance in China.

67______. Oscar is a student from Yangzhou University, visiting his friends who share the same interest in music. They are planning to find someplace to enjoy rock and roll and pop songs.

68______. Carol studies Chinese in Beijing. She is free recently during the day time, so she would like to find someplace where she can attend some kind of activity so that she can learn some details about Chinese modern literature.

A.Capital Theatre:

To celebrate its 50th anniversary, the China Acrobatic Troupe will present “The Soul of China”, where the seemingly impossible is made real. Chills (寒战 ) will run down your spine (脊柱 ) as you watch breathlessly as performers take their art and the bodies to the edge. Time: 7:30 p.m., September 13-19.

B.The Wangfung Art Gallery:

A joint show of oil paintings by 10 young and middle-aged artists will be hosted by the gallery. On display are more than 30 of their latest works, which capture the variety of life in unique (独特的) styles.

C.Huangshicheng Gallery:

A group ink painting exhibition is running. About 50 works by 25 young artists including Ge Yun and Yu Yang are on display. Time:9 a.m.—5p.m. until September 10.

D.Anyuan Museum:

The National Museum of Modern Chinese Literature offers an indepth study of the evolution of Chinese contemporary literature from 1919 to 1949. Time: 9a.m.---4p.m., daily.

E. The Olympic Center:

“The Fashionow Night of Chinese Rock” is set to bring back fans out by the thousands next month. Nine Chinese rock bands will perform at the concert, including older generation bands, middle generation bands, middle generation and some recent arrivals. The audience will be given a chance to decide what songs they want to hear, which is sure to bring a storm. Time: September 16.

 

Plastic is one of the most important technological discoveries of the 20th century. However, it may soon be replaced. The new development- liquid wood- can replace plastics in all branches of modern-day industries.

Plastic as a material enjoys the biggest demand in the modern world, but it does have a number of drawbacks. First and foremost, plastic isn’t recyclable. Secondly, it contains toxins (毒物) helping develop cancerous diseases. Finally, it’s made of oil and oil reserves aren’t endless.

The liquid wood technology is likely to replace plastic and providing mankind with new materials for many years ahead. Norbert Eisenfreich, a senior researcher at the Faunhofer Institute for Chemical Technology in Germany (ICT), said that arboform, the new material, is made of lignin(木素质), which can be obtained from soft tissues of wood. Once mixed with several other matenals, it turns into solid and non-toxic alternative for plastics.

ICT team leader Emilia Regina Inone-Kauffmann said the wood-working industry separates wood into three basic components, including lignin. Lignin isn’t used for the production of paper. Specialists of ICT mixed lignin with several natural materials and thus invented the material which could be melted and molded (铸型).

When solid, arboform looks like plastic and possesses tho qualitie of polished wood. It can be used for the production of any items. Arboform is already used for the production of car parts which require extra strength. In addition, liquid wood can be recycled repeatedly. The material preserved all of its qualities even if it’s reprocessed ten times.

However, the new invention doesn’t enjoy an extensive use due to the high content of sulfur(硫) in it. German researchers are sure to reduce the amount of sulfur by 90% very soon to make arboform usable for home needs.

71. According to the passage, plastic        .

A. helps us to reduce the use of petrol

B. helps to protect our environment in some way

C. does harm to our society in some way

D. has been replaced by the newly discovered material

72. What’s the advantage of arboform over plastic?

A. It is easier made from natural oil.

B. It is more widely used in household

C. It is recyclable and friendly to environment.

D. It contains no poisonous materials.

73. The underlined word “altemative” in Paragraph 3 means        .

A. lignin or arboform                                B.soft tissues of wood

C. plastics or wood                                    D. mixture of several materials

74. It can be concluded that German researchers will focus their future work firstly on     .

A. the material’s extensive use                    B. the content of sulfur in arboform

C. the production cost of arboform                     D. the qualities of liquid wood

75. The main purpose of the text is to     .

A.introduce liquid wood which will replace plastic

B.show readers how to produce arboform

C.advertise the new material-arboform

D.advertise new products made of arboform

 

.

Driving to a friend's house on a recent evening, I was attracted by the sight of the full moon rising just above my friend’s rooftops. I stopped to watch it for a few moments, thinking about what a pity it was that most city people? Myself included? Usually miss sights like this because we spend most of our lives indoors.

My friend had also seen it. He grew up living in a forest in Europe, and the moon meant a lot to him then. It had touched much of his life.

 I know the feeling. Last December I took my seven-year-old daughter to the mountainous jungle of northern India with some friends. We stayed in a forest rest-house with no electricity or running hot water. Our group had campfires outside every night, and indoors when it was too cold outside. The moon grew to its fullest during our trip. Between me and the high mountains lay three or four valleys. Not a light shone in them and not a sound could be heard. It was one of the quietest places I have ever known, a bottomless well of silence. And above me was the full moon, which struck me deeply.

Today our lives are filled with glass, metal, plastic and fibre-glass. We have televisions, cell phones, pagers, electricity, heaters and ovens and air-conditioners, cars, computers.

Struggling through traffic that evening at the end of a tiring day, most of it spent indoors, I thought: before long, I would like to live in a small cottage. There I will grow vegetables and read books and walk in the mountains And perhaps write, but not in anger. I may become an old man there, and wear the bottoms of my trousers rolled and measure out my life in coffee spoons. But I will be able to walk outside on a cold silent night and touch the moon.

71.The best title for the passage would be______.

A. Touched by the moon

B. The pleasures of modern life

C. A bottomless well of silence

D. Break away from modern life

72. The writer felt sorry for himself because________.

A. there was too many pollution

B. he failed to see the fullest moon

C. he didn’t adapt to modern inventions

D. there were too accidents on the road

73. What impressed the writer most in the mountainous jungle of northern India?

A. No modern equipment     B. Complete silence.

C. The nice moonlight        D. The high mountains

74. Modern things (Paragraph 4) are mentioned mainly to______.

A. show that the writer likes city life very much

B. tell us that people greatly benefit from modern life

C. explain that people have less chances to enjoy nature

D. show that we can also enjoy nature at home through them

75. The author wrote the passage to_______.

A. express the feeling of returning to nature

B. show the love for the moonlight

C. advise modern people to learn to live

D. want to communicate longing for modern life

 

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