閱讀理解
     What would you think if I told you I could eat 40 percent more food than other people-eating boxes
of ice cream, bowls of noodles and plates of meat-all while losing weight?
     You might hate me, thinking I have one of those annoyingly good metabolisms(新陳代謝)that just
burn up fat the instant it enters my body. You might wonder if I have an intestinal(腸的)worm, or
perhaps an eating disorder. Or maybe you'd just shrug your shoulders and figure I have a rich fantasy
life.
     You'd be wrong.
     For my body to finish such a surprising task, I would have to be a mouse. Not just any mouse, but
one lucky enough to be involved in a new study at Baylor College of Medicine in Houston.
     After identifying an enzyme(酶)that allows fat to be stored in the body, scientists fed mice without
those enzymes, and found those mice were able to consume far more food than other mice-and still
weigh 10 to 15 percent less.
     Best of all, the mice that had no enzymes were in very good health, producing baby mice with no
problem and generally acting like any other mouse. That's great news for obesity researchers, who think
that scientists may figure out a way to prevent the fat metabolizing(脂肪代謝)enzyme in humans and
control weight gain. And such a pill would be very exciting for many people who are struggling to get rid
of dangerous extra pounds.
     But don't start planning any big dinner just yet. At this point, of course, any pill for humans is but a
twinkle(閃爍) in the eye of every medicine company's CEO. More tests are to be made, and eventually
humans will be introduced in the test.
     But for now, unfortunately, control in diet is still the key.
1. What does "such a surprising task" in Paragraph 4 refer to?
A. Eating a lot of food while losing weight.
B. Burning up fat very quickly.
C. Controlling the diet.
D. Having a rich fantasy life.
2. Why did the author say he/she had to be a mouse in Paragraph 4?
A. Because a mouse can lose weight no matter how much it eats.
B. Because the weight losing tests were made on the mouse.
C. Because the mouse has a very good metabolism.
D. Because the author wants to try the food without the enzyme.
3. In the experiment, the mice without those enzymes________.
A. were in good condition  
B. put on weight
C. became weak  
D. could not have baby mice
4. What does the author want to show through the last two paragraphs?
A. You can be free of guilt when having big dinners.
B. Scientists cannot find the key to identifying the enzyme.
C. Don't overeat before the test is made on humans.
D. It is unnecessary to control weight at present.
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2012年普通高等學(xué)校招生全國統(tǒng)一考試重慶卷英語 題型：050

閱讀理解

　　To take the apple as a forbidden fruit is the most unlikely strory the Christians(基督教徒)ever cooked up．For them, the forbidden fruit from Eden is evil(邪惡的)．So when Colu brought the tomato back from South America, a land mistakenly considered to be eden, ever jumped to be the obvious conclusion．Wrongly taken as the apple of Eden, the tomato was shut o the door of Europeans．

　　What made it particularly terrifying was its similarity to the mandrake, a plant that was the to have come from Hell(地獄)．What earned the plant its awful reputation was its roots w looked like a dried-up human body occupied by evil spirits．Tough the tomato and the man were quite different except that both had bright red or yellow fruit, the general population consio them one and the same, to terrible to touch．

　　Cautious Europeans long ignored the tomato, and until the early 1700s most of the We people continued to drag their feet．In the 1880s, the daughter of a well-known plant expert that the most interestinig part of an afternoon tea at her father's house had been the “introduction this wonderful new fruit-or is it a vegetable?”As late as the twentieth century some writers classed tomatoes with mandrakes as an”evil fruit”．

　　But in the end tomatoes carried the day．The hero of the tomato was an American named R Johnson, and when he was publicly going to eat the tomato in 1820, people journeyed for hun of miles to watch him drop dead．”Wha are you afraid of?”he shouted．”I'll show you fools these things are good to eat!” Then he bit into the tomato．Some people fainted．But he sur and, according to a local story, set up a tomato-canning factory．

(1)

The tomato was shut out of the door of early Europeans mainly because ________．

[　　]

A．

it made Christive evil

B．

it was the apple of Eden

C．

it came from a forbidden land

D．

it was religiously unacceptable

(2)

What can we infer the underlined part in Paragraph 3?

[　　]

A．

The process of ignoring the tomato slowed down

B．

There was little pregress in the study of the tomato

C．

The tomato was still refused in most western countries

D．

Most western people continued to get rid of the tomato

(3)

What is the main reason for Robert Johnson to eat the tomato Publicly?

[　　]

A．

To manke imself a hero

B．

To remove people's fear of the tomaoto

C．

To speed up the popularityt of the tomato

D．

To persuade people to buy products fo\rom his factory

(4)

What is the main purpose of the passage?

[　　]

A．

To challenge people's fixed concept of the tomato

B．

To give an explanation to people's dislike of the tomato

C．

To present the change of people's attitudes to the tomato

D．

To show the process of freeing the tomato from religious influence

查看答案和解析>>

科目：高中英語 來源：安徽省期中題 題型：閱讀理解

閱讀理解。

     任務(wù)型讀寫。請認(rèn)真閱讀下面短文，并根據(jù)所讀內(nèi)容在文章后圖表中的空格里填
入最恰當(dāng)?shù)膯卧~。)注意:每空不超過1個(gè)單詞。
     Maybe you are an average student. You probably think you will never be a top student.
This is not necessary so, however. Anyone can become a better student if he or she wants to.
Here's how:
     1. Plan your time carefully. When you plan your week, you should make a list of things
that you have to do. After making this list, you should make a schedule of your time. First your
time for eating, sleeping, dressing, etc. then decide a good, regular time for studying. Don't forget
to set aside enough time for entertainment. A weekly schedule may not solve all your problems,
but it will force you to realize wha is happening to your time.
     2. Find a good place to study. Look around the house for a good study area. Keep this
space, which may be a desk or simply a corner of your room, free of everything but study materials.
No games, radios, or television! When you sit down to study, concentrate on the subject.
     3. Make good use of your time in class. Take advantage of class time to listen to everything
the teachers say. Really listening in class means less work later. Taking notes will help you remember
what the teacher says.
     4. Study regularly. When you get home from school, go over your notes. Review the important
points that your teacher mentioned in class. If you know what your teacher is going to discuss the
next day, reading that material will become more meaningful, and you will remember it longer.
     5. Develop a good attitude about tests. The purpose of a test is to show what you have
learned about a subject. They help you remember your new knowledge. The world won't end if
you don't pass a test, so don't be overly worried.
     There are other methods that might help you with your studying. You will probably discover
many others after you have tried these.
                                              How to become a better student

查看答案和解析>>

同步練習(xí)冊答案