68. Donald Louria’s attitude towards long living is that _______.

　A. people can live from 120 to 180

　B. it is still doubtful how long humans can live

　C. the human body is designed to last past about 120 years

　D. it is possible for humans to live longer in the future

67. By saying "we are knocking at the door of immortality", Michael Zey means _______

A. they believe that there is no limit of living

　B. they are sure to find the truth about long living

　C. they have got some ideas about living forever

　D. they are able to make people live past the present life span

75．Animals’ living on generation after generation depends on 　　　　　.

　　　 A．their natural action pattern with their own experience

　　　 B．the lessons they have learnt during their lifetime

　　　 C．their experience in particular environments

　　　 D．the knowledge passed on by their parents

2004年(湖南卷)D

Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.

"I think we are knocking at the door of immortality (永生),' said Michael Zey, a Montclair State University business professor and author of two books on the future. "I think by 2075 we will see it and that's a conservative estimate (保守的估计)."

At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology (纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. "There is a great push so that people can live from I20 to 180 years," he said. "Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years."

However, many scientists who specialize in ageing are doubtful about it and say the human body is just not designed to last past about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.

Scientists also differ on what kind of life the super aged might live. "It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?" said Leonard Poon, director of the University of Georgia Gerontology Centre. "At present people who could get to that point are not in good health at all."

74．When the environment doesn’t change much ,　　　　 　.

　　　 A．animals cannot act in a right way

　　　 B．genetic learning is less important for animals

　　　 C．individual learning plays a less important role

　　　 D．animals cannot get over problems on their on their own

73．Very few species depend entirely on genetic learning because 　　　　　.

　　　 A．each generation has its own way of learning

　　　 B．their environments change all the time

　　　 C．they can act reasonably on their own

　　　 D．it takes their whole life to learn

72．The animal’s life will come to an end 　　　　　.

　　　 A．if the animal makes a wrong decision 　 B．if the animal plays a dangerous game

　　　 C．when the animal attacks its enemy 　　　 D．when the animal runs too slowly

70．Which of the following statements would the writer agree to?

　　　 A．It is important to have the right food for children.

　　　 B．It is a good idea to have the TV on during dinner.

　　　 C．Parents should talk to each of their children frequently.

　　　 D．Elder children should help the younger ones at dinner

2005湖北卷E

From the moment that an animal is born it has to make decisions . It has to decide which of the things around it are for eating , and which are to be avoided ; when to attack and when to run away . The animal is , in fact , playing a very dangerous game with its environment , a game in which it must make decision-a matter of life or death .

Animals’ ability to act reasonably is believed to come partly from what we may call “genetic (遗传性的)learning” , which is different from the individual (个体的) learning that an animal does in the course of its own lifetime . Genetic learning is learning by a species -animals of the same kind-as a whole , and it is achieved by selection of those members of each generation that happen to act in the right way . However , the role of genetic learning depends upon how similar the future environment is to the past . The more important individual experience is likely to be , the less important is genetic learning as a means of getting over the problems of the survival game . Because most animals live in ever changing evironments from one generation to the next , it is not surprising to find that very few species indeed depend wholly upon genetic learning .

In the great majority of animals , their particular ways of acting in a new environment are a compound (复合体) of individual experience added to the action patterns animals are born with .That is why animals can survive .

69．Lewis’ research provides an answer to the question _________.

　　　 A．why TV is important in family life　　　　 B．why parents should keep good order

　　　 C．why children in small families seem to be quieter

　　　 D．why middle children seem to have more difficulties in life

68．By saying “Middle children are invisible” in paragraph 3, Lewis means that middle children _________.

　　　 A．have to help their parents to serve dinner　B．get the least attention from the family

　　　 C．are often kept away from the dinner table　D．find it hard to keep up with other children

67．Parents with large families ask fewer questions at dinner because ____________.

　　　 A．they are busy serving food to their children

　　　 B．they are busy keeping order at the dinner table

　　　 C．they have to pay more attention to younger children

　　　 D．they are tired out having prepared food for the whole family