题目内容

Life has become so easy for children today that they the spirit to work hard.

A.lack B.lack of

C.are lacked D.are lacking of

A

【解析】

试题分析:考查动词。句意:生活对现在的孩子变得容易了,他们就没有努力工作的意识了,因题中由tody可知用一般现在时,所以选A。

考点:考查动词

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(London)—If it really is what’s on the inside that counts, then a lot of thin people might be in trouble.

Some doctors now think that the internal( 内部的) fat surrounding important organs like the heart or liver could be as dangerous as the external fat which can be noticed more easily.

“Being thin doesn’t surely mean you are not fat,” said Dr Jimmy Bell at Imperial College. Since 1994, Bell and his team have scanned nearly 800 people with MRI(核磁共振) machines to create “fat maps” showing where people store fat.

According to the result, people who keep their weight through diet rather than exercise are likely to have major deposits (沉积)of internal fat, even if they are slim.

Even people with normal Body Mass Index scores can have surprising levels of fat deposits inside. Of the women, as many as 45 percent of those with normal BMI scores (20 to 25) actually had too high levels of internal fat. Among men, the percentage was nearly 60 percent.

According to Bell, people who are fat on the inside are actually on the edge of being fat. They eat too many fatty and sugary foods, but they are not eating enough to be fat. Scientists believe we naturally store fat around the belly first, but at some point, the body may start storing it elsewhere.

Doctors are unsure about the exact dangers of internal fat, but some think it has something to do with heart disease and diabetes. They want to prove that internal fat damages the body’s communication systems.

The good news is that internal fat can be easily burned off through exercise or even by improving your diet. “If you want to be healthy, there is no short cut. Exercise has to be an important part of your lifestyle,” Bell said.

1.What is this piece of news mainly about?

A. Thin people may be fat inside.

B. Internal fat is of no importance.

C. Internal fat leads to many diseases.

D. Thin people also have troubles.

2.Doctors have found _____.

A. the exact dangers of internal fat

B. internal fat is the cause of heart disease and diabetes

C. being slim is not dangerous at all

D. being slim doesn’t mean you are not fat inside

3.According to the passage, which of the following is WRONG?

A. Exercise can help to reduce the internal fat.

B. People can get rid of internal fat by improving diet.

C. Men are more likely to have too much internal fat.

D. People with heart disease all have internal fat.

4.From the last paragraph, we can find that _____.

A. whether internal fat can lead to disease has been proved

B. exercise plays an important role in people’s life for keeping healthy

C. thin people usually have internal fat even if they are slim

D. it is easier to burn off internal fat than external fat

5.The underlined part in the last paragraph means _____.

A. a long road B. an easy way

C. a clear difference D. a short distance

Global warming happens when greenhouse gases trap heat and light from the sun in the earths atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows,but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out. As a result,the temperature rises.

Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on. Without it,the earth would be freezing,or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it,so people,plants,and animals would be exposed to all the light and heat.

Although the greenhouse effect makes the earth able to have people living on it,if there gets to be too many gases,the each can get unusually warmer, and many plants,animals.and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat,and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually,people,plants,and animals would all die of hunger.

People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now,more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming,kids call do just as much.

1. By the example given in Paragraph l, the author wants to__________.

A. explain how global warming happens.

B. show his feeling in a car in hot summer.

C. tell us cars are causes of greenhouse gases.

D. say that I there are greenhouse gases in every car.

2. The underlined wordit in Paragraph 2 refers to__________.

A. light B. greenhouse effect

C. temperature D. heat

3. What is the effect of atmosphere?

A. It only traps the heat of the sun.

B. It does great harm to humans.

C. It makes the earth neither too hot nor too cold.

D. It prevents all the light from the sun shining on the earth.

4. What is the main idea of the third paragraph?

A. lf there is greenhouse effect,all the plants will die

B. Human beings are likely to disappear from the earth

C. Crops can ′t take in the heat lf there is greenhouse effect

D. Although greenhouse effect is necessary,too much of it will cause us to die.

5. What will the author most probably discuss in the paragraph that follows?

A. What kids can do to help stop global warming.

B. Who should be responsible for the environmental problems.

C. What global warming is doing to the environment.

D. Why cars and buses pollute the air a lot.

America is growing older. Fifty years ago, only 4 out of every 100 people in the United States were 65 or older. Today, 10 out of every 100 Americans are over 65. The aging of the population will affect American society in many ways: education, medicine, and business. Quietly, the aging of America has made us a very different society—one in which people have quite a different idea of what kind of behavior is suitable at various ages.

A person’s age no longer tells you anything about his/her social position, marriage or health. There’s no longer a particular year in which one goes to school or goes to work or gets married or starts a family. The social clock that kept us on time and told us when to go to school, get a job, or stop working isn’t as strong as it used to be. It doesn’t surprise us to hear of a 29-year-old university president or a 35-year-old grandmother, or a 70-year-old man who has become a father for the first time. Public ideas are changing.

Many people say, “I am much younger than my mother or my father was at my age.” No one says “Act your age.” any more. We’ve stopped looking with surprise at older people who act in youthful ways.

1.It can be learned from the text that the aging of the population in America _______.

A. has made people feel younger.

B. has changed people’s social position.

C. has changed people’s understanding of age.

D. has slowed down the country’s social development.

2.The underlined word “one” refers to _______.

A. a society B. America

C. a place D. population

3.“Act your age.” Means people should _______.

A. be active when they are old.

B. do the right thing at the right age.

C. show respect to their parents young or old.

D. take more physical exercises suitable to their age.

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