B

For all dinner tables, a glass of milk seems to be a must. At least it was when I was growing up. It is widely believed that milk is a must in building strong bones and teeth. There’s no doubt that dairy products, especially milk, are high in protein and calcium, and Vitamin D and Vitamin A are added to most milk products.

While it’s well known that our bones need calcium, some studies suggest that high calcium intake doesn’t necessarily lower a person’s risk for fractures（骨折）. A Harvard study found that people who drank two or more glasses of milk had no greater protection from breaking a bone than those who drank a glass or less a week.

There is no doubt that we need calcium. Some anti-dairy supporters claim dairy products can lead to heart disease. Much of this claim is based on high-fat dairy products, like cheese and cream, which may indeed lead to some health problems. Some studies have linked high milk intakes with a risk of prostate（前列腺）cancer; this seems also to be caused by high-fat dairy products, but not by dairy products in general.

Although milk has always been regarded as the most important thing we need for our bones, one of the most important things in strengthening bones and reducing the risk of osteoporosis（骨质疏松）is weight-bearing exercise, such as jogging, walking, and weight lifting.

Perhaps we should think of dairy products as less like a nutrient and more like a food. If you like it, eat it. If not, find something else to eat. Some claims may not be completely true. When I eat cream, I’m not thinking about calcium, protein, or any such thing. I’m thinking it is delicious.

60.What is the best title for this passage?

   A. Milk: is it really necessary for children?    B. The disadvantages of drinking milk.

   C. Milk: is it really good for the body?       D. Milk causes health problems.

61.   For people who want to reduce the risk of osteoporosis, we can infer that the writer may suggest that they ________.

       A. avoid milk with Vitamin D and Vitamin A added

       B. spend some time exercising

       C. take in as much calcium as possible

       D. drink more than two glasses of milk every day

62.   Based on the passage, we learn the writer may agree that ________.

       A. milk is the most important thing that we need for our bones

       B. children should not be permitted to eat cream

       C. children should drink milk whether they like it or not

       D. milk should be considered more like a food than a nutrient

63.   What can we learn from the passage?

       A. Some dairy products may harm our health.

       B. Milk has the highest level of protein of any food.  

       C. The writer seldom drank milk when he was young

       D. People who drink milk every day are at a high risk of getting a heart disease.

For hundreds of years humans have dreamt of finding life on distant planets. Now the hope of discovering real evidence of life has greatly increased

NASA’s Mars detector (探测器), Opportunity, succeeded in finding signs that water once existed on the planet. Opportunity landed on Mars in January. Scientists now believe that the planet could once have supported life.

This discovery was chosen by Science, one of the world’s leading magazines, as the most important scientific achievement of 2004 last Friday

“This little, wheeled, one-armed box went around another planet and has done something no human has ever managed,” according to Science. “It has discovered another place in the universe where life could once have existed.”

“Although we still can’t say that life could have existed in this environment, it is now certain that there was water on Mars,” said Steve Squyres, one of the scientists working on the Mars mission. The evidence comes from pictures and chemical readings taken by Opportunity. It includes marks on rocks like those caused by flowing water on Earth and salty chemicals like those found in dried-out sea-beds. Scientists said the new evidence proved beyond doubt that water has been existed on Mars. But it is still unknown whether the water on Mars was like an ocean or just ice.

While Opportunity has not found any signs of life, the presence of water means life is possible. “In everything we know about life on Earth, there is no example without liquid water,” Squyres said. “So water is important for the search for life on Mars.”

Researchers agree that a future mission (任务) should bring back physical samples (样品). But some scientists worry about the risk that this could introduce dangerous foreign creatures to Earth. “The problem here is how to get the samples back,” Squyres replied. “I think it is our responsibility to limit any risk.”

1. ________ prove that water existed on Mars.

A. The physical samples with salty chemicals            

B. The marks on rocks and salty chemicals

C. Scientific achievements of 2004                          

D. Creatures from Mars

2. Which of the following is true according to the text?

A. It is now certain that there was water on Mars.             

B. The water on Mars was like an ocean.

C. Evidence of life on Mars has been found.                    

D. Search for life on Mars is a great risk to humans.

3. How did scientists draw the conclusion that there was water on Mars?

A. The world’s leading magazine has announced the fact.

B. Scientists have taken many pictures and chemical readings on the Mars.

C. Astronauts have got some rocks from Mars.

D. Scientists have made a study of the pictures and readings sent back by Mars detector.

4. It can be inferred that, if the creatures from Mars came to Earth, ________.

A. they would be kind to humans                   

B. they would be cruel to humans

C. they would be a great danger to Earth

D. it would be hard to say whether it would be a good news or bad news

For all the dinner table, a glass of milk seems to be a constant , at least it was when I was growing up．It was widely believed that milk was integral in building strong bones and teeth. There’s no doubt that dairy products(乳制品), and milk in particular, are high in protein and calcium, and most milk products are supplemented with Vitamin D and A．

While it’s well known that our bones need calcium, some studies suggest that high calcium intake doesn’t necessarily lower a person’s risk for fractures（骨折）． A Harvard study found that people who drank two or more glasses of milk had no greater protection from breaking a bone than those who drank a glass or less a week．

There’s no doubt that we need calcium, Some anti-dairy supporters claim that dairy can lead to heart disease． Much of this claim is based on high fat and high dairy products, like cheeses and creams, which may indeed contribute to cardiovascular problems． Some studies have linked high milk intakes with a risk of prostate cancer; this seems to be caused by high-fat dairy products, not dairy in general．

Although milk was always regarded as one of the most important thing we need for our bones, yet least promoted, factors involved in strengthening bones. Perhaps we should think of dairy as less like a nutrient and more like a food. If you like it, eat it．If not, find some others． Because some claims may not be completely true, when I eat a cream, I’m not thinking about calcium, protein, or any such thing. I’m thinking delicious．

61．Which of the following is TRUE on the milk?

A．The more milk you drink, the more risk for fractures you might be．

B．The more milk you drink, the less risk for fractures you might be．

C．The less milk you drink, the less risk for fractures you might be．

D．There is no link between them．

62．Some anti-dairy supporters claim that dairy can lead to except______．

A．cardiovascular problems                      B．heart disease

C．prostate cancer                             D．stomach cancer

63．The underlined words “some others” in the last paragraph refer to_____．

A．dairy products               B．milk               C．food               D．cream

64．What’s the author’s attitude towards milk?

A．He doesn’t like milk any more

B．He used to drink milk as a child．

C．He regards milk as a nutrient．

D．He always cares about calcium, protein when he eats something．

65．We can learn from the text that_____

A．All the claims are not completely true ．

B．High milk intakes can lead to cancer．

C．It’s necessary for you to reduce milk intakes．

D．Give up milk for your health．

While attending a conference, I returned to my hotel room late one rainy evening．The overhead light outside my door was   36  and I had difficulty finding the keyhole．When I finally  37   to open the door, I  38    around the wall for a light switch．I found a  39   where a switch was once installed… but no switch．

No discouraged easily, I remembered seeing a   40   by the bed when I put away my luggage   41   in the day．I found the bed in the dark and felt around until I found the lamp, but when I switched it on,   42   happened! Now what?

Though I knew that it was dark outside my window   43   the outdoor light was burned out, I thought that   44    if I opened the curtains I might be able to use the light from the   45   to find another lamp．So I   46    my way slowly across the room to the curtains and… no draw-string!

I finally stumbled（跌跌撞撞） around until I found a desk lamp that actually   47  ! That evening I discovered in a whole new way just how dark the world can be and how necessary   48   is．

But even more necessary than   49   light is the light that shines from people — the light of love, sympathy and   50  ．Because, for many people, the world is a dark and   51   place．

It is the shining that is important, for someone today just may be stumbling in discouragement or fear and in   52  of some light．

So let your light shine．Whatever light you  53  may be a beacon（灯塔）of hope and encouragement in someone’s darkness．And if you feel that your light is   54   a candle in a forest, remember this — there isn’t enough darkness in the world to   55   the light of one small candle．

A．burning      B．broken         C．shining    D．smooth

A．managed      B．attempted        C．succeeded D．meant

A．touched       B．turned          C．felt        D．looked

A．light          B．plate            C．lamp        D．signal

A．lamp          B．switch          C．desk        D．window

A．later          B．earlier          C．sooner      D．first

A．something     B．everything       C．nothing     D．anything

A．when          B．unless           C．since        D．although

A．certainly     B．surely           C．absolutely D．perhaps

A．star           B．street         C．room     D．shop

A．forced         B．struggled       C．made     D．pushed

A．worked        B．failed           C．did        D．closed

A．love          B．thinking         C．dream       D．light

A．spiritual       B．physical         C．mental      D．inner

A．faith          B．soul            C．help        D．attention

A．mixed         B．fancy         C．lonely       D．complicated

A．lack           B．need            C．favor       D．face

A．devote         B．receive          C．offer        D．throw

A．only          B．even            C．ever      D．much

A．give out       B．leave out        C．take out    D．put out

For several years, scientists have been testing a substance called interferon(干扰素), a possible wonder drug that is proving to be effective in treating a variety of diseases, including virus infections, bacterial infections, and cancers. To date, the new drug has no side effect of great influence to discourage its use.  But in spite of its success, last year only one gram was produced in the entire world.

The reason for the shortage lies in the structure of interferon. A special protein, the interferon produced from one animal species cannot be used in treating another animal species. In other words, to treat human beings, only interferon produced by human beings may be used. The drug is produced by infecting white blood cells with a virus. Fortunately, it is so effective that the amount given to each patient each time is very small.

Unlike antibiotics (抗生素), interferon does not attack germs directly. Instead, it protects healthy cells from being infected, and prevents the reproduction of viruses within cells.

As you might conclude, one of the most special uses of interferon has been in the treatment of cancer. Dr. Hans Strander, a research physician at Sweden’s famous Karolinska Institute, has treated more than one hundred cancer patients with the new drug. Among a group of selected patients who had received operations for advanced cancer, half were given  traditional treatments and the other half were given interferon. Among those treated with interferon 70 percent of them remained alive over three years, as compared with only 10 to 30 percent among those who had received the traditional treatments.

In the United States, a large-scale project supported by the American Cancer Society is now under way. If the experiment were successful, interferon could become one of the greatest medical discoveries of our time.

What is the difference between antibiotics and interferon?

A. Interferon has serious side effects, while antibiotics do not.

B. Antibiotics kill germs by attacking them directly, while interferon does not.

C. Antibiotics are very effective, while the effect of interferon is limited.

D. They are different in structure, although they are both proteins.

According to the passage, if 170 cancer patients received interferon treatment, how many of them would remain alive over three years?

A. About 30.

B. About 50.

C. About 120.

D. About 70.

The passage tells us that ________.

A. it is difficult to produce interferon in large quantities because of its special structure.

B. interferon is produced widely in lots of countries.

C. few of the patients who had received traditional treatments remained alive.

D. most of the patients who received interferon also needed traditional treatments.