82．What does the first paragraph mainly tell us?(回答词数不超过8个)

81．Find in the passage a word closest in meaning to the underlined word "devour".

70．What does the author say about straight, horizontal bars painted across roads?

A．They are suitable only on broad roads.　

B．They are falling out of use in the United States.

C．They are ignored in a long period of time.

D．They cannot be used successfully to traffic circles.

PART FOUR: WRITING

Section A(10分)

Directions: Read the following passage. Complete the diagram by using the information for the passage. Write NO MORE THAN 3 WORDS for each answer.

Many animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.

Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A kind of white butterfly　will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the season.

Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modern life.

Title: 　　71　　 　humans and animals choose food　　　

　Section B(10分)

　　　 Directions: Read the following passage, Answer the questions according to the information given in the passage and required words limit.

Through all of human history, rats have been a curse and a plague to people. They eat or spoil crops of grain and rice before they can be harvested or while they are in storage. In India, where millions of people go hungry, there are ten times as many rats as people. Rats devour 　half of the available food. Rats will also attack birds and animals, from flogs and chicks to geese and young calves. They have even destroyed dams and buildings by making holes through or under them. Sometimes they cause fires by chewing on electrical wiring.　　

The most terrible destruction caused by rats, however, has come from the diseases they carry. In the fourteenth century, rats caused the death of one-third of the world's human population by transmitting bubonic plague (淋巴腺鼠疫). This dreadful outbreak also called the Black Plague, ravaged (严重损坏) Europe for years.　　

Ironically, it is in fighting diseases that rats have been most useful to humanity. The bodies of rats, though quite different from those of humans, have certain basic structural similarities. So thousands of specially bred rats are used in research laboratories every year to test medicines that can possibly be used to prolong and improve human life. As might be expected, some laboratory rats are even used to test new procedures and methods for eliminating their cousins - the wild rats .

69．The American Automobile Association Foundation for Traffic Safety plans to ________.

A．try out the Japanese method in certain areas

B．change the road signs across the country

C．replace straight, horizontal bars with chevrons

D．repeat the Japanese road patterns

68．The advantage of chevrons over straight, horizontal bars is that the former ________.

A．can keep drivers awake　　　　　　　　　　　　 B．can cut road accidents in half

C．will look more attractive　　　　　　　　　　　 D．will have a longer effect on drivers

67．On roads painted with chevrons, drivers tend to feel that ________.

A．they should avoid speed-related hazards

B．they are driving in the wrong lane

C．they should slow down their speed

D．they are coming near to the speed limit

66．The passage mainly discusses ________.

A．a new way of highway speed control

B．a new pattern for painting highways

C．a new way of training drivers

D．a new type of optical illusion

65．The main idea of this article is about _______.

A．unlocking genetic code 　　　　　　　　　　　 B．the genes' discovery

C．the great human genome 　　　　　　　　　　 D．the genes and the scientists

C

Believe it or not, optical illusion(错觉) can cut highway crashes.

Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. But stripes, called chevrons(人字形), painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.

Now the American Automobile Association Foundation(基金会) for Traffic Safety in Washington D.　 C．is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.

Excessive (too great) speed plays a major role in as much as one fifth of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards (danger) are the greatest curves, exit slopes, traffic circles, and bridges.

Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.

Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane appear to be narrower. The result is a longer lasting reduction in highway speed and the number of traffic accidents.

64．The author suggests that the Human Genome Project can cause _______.

A．the policy makers to feel very worried and careful

B．the scientists to work harder

C．many people to find work easily

D．a lot of companies to produce many new drugs

63．Which of the following is NOT true?

A．If the genes can be found, scientists can study many new ways to cure illnesses.

B．The scientists have made great progress in connecting the genes with the cancers.

C．Many medical companies show great interest in drawing the human genome map.

D．The United States began the Genes Study early in the 19th century.