Special trees that grow faster, fight pollution, produce better wood, and even sense chemical attacks are being planted by scientists in the US．

         When 40 per cent of Hawaii's US$14 million-a-year papaya （木瓜）industry was destroyed by a virus five years ago, work began on creating genetically engineered（转基因的）trees．

         Researchers successfully introduced seeds that were designed to resist the virus．Since then, more and more people have been testing genetically engineered trees．Some researchers put special bacteria into trees to help them grow faster and produce better wood．Others are trying to create trees that can clean polluted soil．Meanwhile fruit farmers are looking for trees that are strong enough to resist worms, and paper companies want trees that produce more wood and therefore more paper．

         The Pentagon （五角大楼） even gave the researchers US$500,000 this year after they developed a pine tree that changes its colours if it senses a chemical attack．So far, the poplar, eucalyptus （杨树与桉树）, apple and coffee trees are among those being engineered．All this can be done today because we have a better understanding of tree genomes （基因组）．

         However, some people fear that the genetically engineered trees will cause dangerous results．They are worried that the new trees will breed with natural species and change the balance of the forest environment．

         “It could be destructive,” said Jim Diamond, an environmentalist. “Trees are what is left of our natural environment and home to many endangered species.”

         But researchers insist that science could give nature a fighting chance against both natural and man-made dangers．They hope to answer the critics by stopping the new trees from breeding, so their effect on the environment can be controlled．

63．Which kind of tree is not the ones that scientists are planting in the US?

         A．Trees that worms can't hurt．

         B．Genetically engineered trees．

         C．Trees that can resist wind better．

         D．Trees that can protect themselves at a chemical attack．

64．What caused the American scientists to work on special trees?

         A．Tree genomes are mapped out so scientists know how to improve trees．

         B．Great numbers of trees have been lost due to attacks by viruses．

         C．Researchers successfully introduced seeds designed to resist the virus．

         D．They think science could give nature a fighting chance against both natural and man-made dangers．

65．Which of the following was probably the first kind of trees being engineered?

         A．Papaya．                     B．Pine．                           C．Apple．                        D．Poplar．

66．Why did critics think engineered trees dangerous? Because ________．

         A．these trees can destroy the balance of nature

         B．everything except trees has been genetically engineered

         C．trees are home to many endangered species

         D．these trees may affect normal trees

I came to study in the United States a year ago .Yet I did not know the real American society until I was injured in a car accident because after the accident I had to see a doctor and go to court.

After the accident, my roommate called a doctor for me. I was very grateful and determined to repay him one day. But the next day, he asked me to pay him $200 for what he had done. I was astonished. He had good reason to charge me, he said. And if I wanted to collect money from the person who was responsible for my injury, I’d have to have a good lawyer. And only a good doctor can help me get a good lawyer .Now that he had helped me find a good doctor, it was only fair that I should pay him.

But every day I went to see the doctor, I had to wait about 50 minutes. He would see two or three patients at the same time, and often stop treating one so as to see another. Yet he charged me $115 each time .The final examination report consisted of ten lines, and it cost me $215.

My lawyer was all smiles the first time we met. But after that he avoided seeing me at all. He knew very well the other party was responsible for the accident, yet he hardly did anything. He simply waited to collect his money. He was so irresponsible that I decided to dismiss him. And he made me pay him $770.

Now I had to act as my own lawyer. Due to my inexperience, I told the insurance company the date I was leaving America. Knowing that, they played for time…and I left without getting a cent.

1.The author’s roommate offered to help him because________.

A．he felt sorry for the author

B．he thought it was a chance to make some money

C．he knew the doctor was a very good one

D．he wanted the author to have a good lawyer

2.The word “charge” in the third paragraph means_________ .

A．ask as a price                          B．accuse

C．be responsible                         D．claim

3. Both the doctor and the lawyer in this passage are very__________.

A．friendly           B．busy              C．professional        D．selfish

4. What conclusion can you draw from the story?

A．Going to court is something very common in America.

B．One must be very careful while driving a car.

C．There are more bad sides in America than good sides.

D．Money is more important than other things in the US.

A Battery’s Nightmare

Portable electronics that can be carried about easily are only as good as their batteries (电池) and, let’s face it, batteries aren’t very good, especially when compared with, say, petrol, which packs 100 times a battery’s energy into an equal space. That’s why a large group of mechanical engineers (centered at the Massachusetts Institute of Technology, but with partners at other universities and companies) are hard at work in an effort to replace batteries with a tiny engine that runs on fuel. Imagine a battery-free life! When the fuel runs out in your mobile phone, you just fill up and go.

The engine---about the size of a ten-cent coin---starts with a combustion chamber (燃烧室) that burns hydrogen. Its tiny parts are etched (蚀刻) onto silicon wafers (硅片) in the same manner that computer parts are etched onto integrated circuits (集成电路). The first engine is made up of five wafers. And since these wafers could be produced in much the same way as computer chips, they could probably be produced quite cheaply.

But the devil in all this nice detail is efficiency. Tiny engine parts don’t always behave like the bigger parts of the first engine. Something between the parts can slow down the works, according to Columbia University Professor LucFrechette, one of the engine’s designers. Extreme heat from the combustion chamber is also a problem, often leaking to other parts of the engine.

The scientists’ goal is to create an engine that will operate 10 times better than batteries operate. Frechette says that a complete system, with all parts in place and working, will be set up in the next couple of years, but commercial models aren’t likely until at least the end of the next ten years.

According to the passage, the title suggests that _______ .

A. batteries should be greatly improved

B. petrol will be used instead of batteries

C. the time of batteries will be gone forever

D. pollution problems caused by batteries must be solved

What’s the meaning of the underlined word “devil” in paragraph 3?

A. Problem     B. Advantage     C. Invention     D. Technique

What can we infer from the passage?

A. The new invention doesn’t need any fuel.

B. The new engine has been produced in large quantities.

C. The new invention is much cheaper than the battery.

D. The new engine needs to be improved before it’s on sale.

第三部分: 阅读理解 (共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项(A,B,C,D)中选出最佳选项

One of the most important aspects of an image is color. People are very sensitive to color, and different colors have different effects on people .

In general , red is an exciting color , which creates an image of action, energy and danger. Red is also the most frequently used color in flags .Eighty percent of the world’s flags contain red. A study in “Germany showed that football teams wearing red are more successful .Blue is a very calm color .Business executives usually wear dark blue suits .Blue is also a peaceful color. The flag of the United Nations is light blue .Yellow is associated with openness and freedom. Green is a very relaxing color .Surgeons nowadays wear green ,because it’s less tiring than white .Black creates an image of power and authority .It can also be a very threatening color .Gangsters and vampires often wear black .white is a pure and strong color .This is one reason why doctors wear white coats .We trust them more .Grey is a very anonymous color .People wearing grey don’t want other people to notice them .Brown is the opposite of black .It’s warm and friendly ,while black is threatening .

56．What does the author mainly talk about in the passage?

A．Color and Character       B．Color and Image

C．Color and Occupation     D．People are sensitive to color

57．Which of the following is true about color according to the passage?

A．Eighty per cent of the world’s flags contain green.

B．Brown is the opposite of pink, presenting warmth.

C．Red creates an image of energy , danger and freedom.

D．Blue is a peaceful and calm color.

58．The underlined word “anonymous” roughly means ______

A．outstanding     B．beautiful C．exciting   D．unknown

That “Monday morning feeling” could be a crushing pain in the chest which leaves you sweating and gasping for breath. Recent research from Germany and Italy shows that heart attacks are more common on Monday mornings and doctors blame the stress of returning to work after the weekend break.

The risk of having a heart attack on any given day should be one in seven, but a six-year study helped by researchers at the Free University of Berlin of more than 2,600 Germans showed that the average person had a 20 per cent higher chance of having a heart attack on a Monday than on any other day.

Working Germans are particularly not protected against attack, with a 33 per cent higher risk at the beginning of the working week. Non-workers, by comparison, appear to be no more at risk on a Monday than any other day.

A study of 11,000 Italians proved 8 am on a Monday morning as the most stressful time for the heart, and both studies showed that Sunday is the least stressful day, with fewer heart attacks in both countries.

The findings could lead to a better understanding of what is the immediate cause of heart attacks, according to Dr Stefan Willich of the Free University. “We know a lot about long-term risk factors such as smoking and cholesterol（胆固醇）but we don’t know what actually causes heart attacks, so we can’t give clear advice on how to prevent them,” he said.

Monday mornings have a double helping of stress for the working body as it makes a rapid change from sleep to activity, and from the relaxing weekend to the pressures of work.

“When people get up, their blood pressure and heart rate go up and there are hormonal（内分泌）changes in their bodies,” Willich explained. “All these things can have an unfavourable effect in the blood system and increase the risk of a clot（血凝块）in the arteries（动脉）which will cause a heart attack.”

“When people return to work after a weekend off, the pace of their life changes. They have a higher workload, more stress, more anger and more physical activity,” said Willich.

1.Monday morning feeling, as this passage shows,         .

A．is not so serious as people thought

B．is harmful to working people in developed countries.

C．is the first killer in Germany and Italy.

D．is created by researchers in Germany and Italy

2.To protect people from suffering from heart attack, doctors have paid much attention to    . 

A．people’s working time

B．people’s living place

C．people’s diet and lifestyle

D．people’s nationalities

3.It can be learned from this passage that heart attack has nothing to do with     .

A．blood pressure                         B．heart rate

C．hormonal changes                       D．blood group

4.If the researchers give us some advice to avoid Monday morning feeling, what might it be?

A．Stop working on Monday

B．Create a pleasant working environment

C．Get up late on Monday morning

D．Go to work with a doctor