摘要：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 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 Similarities 72 Many humans and animals choose their food by 73 sense. Some people choose food according to 76 but ignore the nutrition of the foo D． Some animals’ diet varies according to 78 . They also use other senses such as smell and 74 . Some few animals depend on only one sense. Many more animals use 79 senses. Humans and most animals have a very 75 diet. Some animals eat only one type of food 77 . Some spend their lives 80 different types of food. Section B 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 . This dreadful outbreak also called the Black Plague, ravaged 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 .

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