C

Under the impression that if you want to lose weight, you have to eat less? Well apparently, the solution may not be quite that simple.

Instead, some scientists in the UK have been experimenting with ways to trick the body into feeling full.

A government-funded team has been testing simple foods found on everyday shopping lists.Bread, cheese, milk, soup and sauces can all be developed to cause the brain to send a brain signal which acts as an appetite suppression (抑制).

Peter Wilde, Scientist of UK Institute of Food Research, said, “If you can slow down the digestion of fat in the body, the undigested fat goes further down the small intestine (肠) and then it sends a message to the brain to reduce your appetite, so you can eat a normal-sized meal and the digestion is slowed down and then the message goes to your brain to reduce your appetite and you go for longer without being hungry.”

The researchers insist that the treated foods will still be entirely natural products, and free from processing.

They believe helping people to reduce weight this way is beneficial because it allows them to eat normally.The scientists also think their treatment could be taken into snacks to make sure people don’t eat too much.

The research is still at the experimental stage and it will be at least a year before their techniques can be used in a large scale human trial.

64.What does the passage mainly tell us?

A .People can lose more weight by eating natural food products.

B.Eating less in meals can make people lose weight.

C.Fat people should eat bread and cheese every day.

D.Some scientists are doing research into a new way to lose weight.

65.How can the new way help people lose weight?

A.Make a person lose his or her appetite for food.

B.Slow down the digestion of fat and then reduce the appetite.

C.Stop people eating food that is easy to digest.

D.Make people eat less but do not feel hungry.

66.According to the passage, the following statements are true EXCEPT ________.

A.bread and milk can be developed to slow down the digestion of fat

B.you won’t eat as frequently as before by eating the treated food

C.you don’t have to go on a diet when taking the treated food

D.many people have been invited to test the treated food

67.The passage most probably is ________.

A.an official document

B.a news story

C.an advertisement

D.a research report

D

It is often claimed that nuclear energy is something we cannot do without.We live in a consumer society, where there is a huge demand for commercial products of all kinds.Moreover, an increase in industrial production is considered to be one solution to the problem of mass unemployment.Such an increase needs an abundant and cheap energy supply.Many people believe that nuclear energy is endless and economical.There are a number of other advantages in the use of nuclear energy.Firstly, nuclear power, except for accidents, is clean.A further advantage is that a nuclear power station can be run by relatively few technical and managing staff.The nuclear power station represents a large step in our scientific research and, whatever the anti-nuclear group says, it is wrong to expect a return to more primitive sources of fuel.

However, those who disagree with nuclear energy point out that nuclear power stations bring a direct threat not only to the environment but also to the human race.Furthermore, it is doubtful whether finally nuclear power is a cheap source of energy.There have, for example, been very costly accidents in America and Russia.The possibility of increases in the cost of uranium (铀) and the cost to ensure its safety could price nuclear power out of the market.In the long run, environmentalists argue, nuclear energy may bring about the destruction of the human race.Thus, if we wish to survive, we cannot afford nuclear energy.Though nuclear energy programs are expanding, which assumes a continual growth in industrial production and consumer demands.It is doubtful whether this growth will or can continue.

Having weighed up the arguments on both sides, it seems there are good economic and environmental reasons for sources of energy other than nuclear power.

68.According to the passage, an increase in industrial production can          .

A.ensure the safety of nuclear power

B.overcome the resource crisis

C.solve the pollution problem

D.offer more working opportunities