Make sure that the machine is kept where it is not ____ to children.

   A. possible      B. common         C. accessible                D. Useful

Dogs have a very good_____ of smell and are often used to search for survivors in an      earthquake.  

 A. view        B. means            C. sense                D. idea

－ What a great success the exhibition was last night !

  －_______ , especially it ______ those who have a preference for the beauty of nature .

A. So it did ; appeals to                             B. So did it , interested

C. So was it ; attracted                               D. So it was ; appealed to

His happy life came to _____ end because he was put into _____ prison for stealing money.

They want to make ______ clear to the public that they are doing an important and necessary job.            

 A. this    B. it    C. what     D. that

---Would you mind if I record your lecture?

   ---______. Go ahead.

A. Yes.        B. No way.        C. Not at all.    D. No, you’better not.

SCIENTISTS have discovered that living to the age of 100 may have nothing to do with the lifestyle you lead and everything to do with the type of genes (基因) you have.

For the lucky carriers of “Methuselah” genes, worries over smoking, eating unhealthily and not getting enough exercise may not be as necessary as to those of us without the special gene pattern .

The “Methuselah” genes could give extra protection against the diseases of old age such as cancer and heart disease. They could also protect people against the effects of the unhealthy lifestyles that we believe will lead us to an early death, scientists say. However, the genes are very rare.

The genes include ADIPOQ, which is found in about 10 percent of young people but in nearly 30 percent of people living past 100. They also include the CETP and the ApoC3 genes, which are found in 10 percent of young people, but in about 20 percent of people over 100 years old.

Some of those genes were discovered by a research group at the Albert Einstein College of Medicine in New York, led by Professor Nir Barzilai. The team studied the genes of over 500 people over 100 years old, and their children.

The studies show that tiny mutations (變異) in the make-up of some genes can greatly increase a person’s lifespan. Barzilai told a Royal Society conference that the discovery of such genes gave scientists clear targets for developing drugs that could prevent age-related diseases, allow people to live longer and stay healthy.

David Gems, a researcher at University College London, believes that drugs to slow ageing will become widespread.

“If we know which genes control longevity (長壽) then we can … target them with drugs. That makes it possible to slow down ageing,” he told The Times.

“Much of the pain and suffering in the world are caused by ageing. If we can find a way to reduce that, then we are obliged to take it.”

According to the article, which of the following is the most important if a person is to live to the age of 100?

A. Eating healthy food every day.

B. Having the right types of genes.

C. Having a healthy lifestyle.

D. Taking drugs that prevent ageing.

According to the article, the ApoC3 gene is found in ______ of people over 100 years old.

A. 10%           B. 20%          C. 30%       D. 50%

Which of the following statements is TRUE of the research led by Professor Nir Barzilai?

A. The team studied the genes of over 100 people over 100 years of age.

B. The researchers found that mutations in certain genes lead to longer life.

C. The researchers found ways to develop drugs that could cure age-related diseases.

D. The study suggested that most people have genes that could lengthen their lives.

According to David Gems, ______.

A. drugs to slow ageing will be very expensive

B. modern science will be able to find more longevity genes

C. it is the duty of medical scientists to fight the problems of ageing

D. scientists can make new genes that will allow longer life

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The changing food of early humans

Some people believe that greed and selfishness has become the basis of modern society, and we should return to the old traditions of family and community then we will have a better life. To what extent do you agree or disagree with the above opinion?

In this fast-paced world, many values are undergoing major changes. While people traditionally prioritize caring, sharing and generosity in life and work, modern people seem to be more self-absorbed and self-concerned.

Modern people act selfishly to survive the harsh competition of life. They say that it is a jungle out there. To survive, you have to fight with whatever means that come handy. Obviously greedy and selfishness go perfectly well with such ideas. In a company, employees do everything they can to get better pay and higher position, even at the cost of colleagues. We are in any way advocating any selfish conduct. It is just that people are pressured to act in a certain way due to outside influences.

In spite of common practice, it is hard to conclude that modern society is built on greed and selfishness, both of which are not newly invented vocabulary. In ancient times people also did greedy and selfish things though such behaviors were more condemned then. But we can not ignore the fact that people in the past lived a relatively more isolated life and faced less pressure compared with their modern counterparts.

Are we happier to share with others and be generous to them? There is no fixed answer either. Some people take great pleasure helping and giving to others while others feel happy doing the opposite. But I personally think that people should not be too selfish. Caring for others can actually encourage the development of a mutually beneficial relationship.

In conclusion, modern people appear to be more self-centered than those in the past due to strong outside pressure. However, we should encourage people to know the importance of being caring and generous and to build a mutually beneficial relationship with others.

Are Modern People Becoming More Selfish? Ks5u

If the coach had to choose between the two, he would say Lisa was ______.

A. good           B. the best         C. better          D. the better

Catherine, ____ the alarm clock for 6 o’clock, or you would oversleep and be late for the train.

A. setting              B. sets                  C. set                          D. to set