新世纪研究生公共英语听力原文(8)

PART B Intensive Listening: Birds

More than one-third of the world's birds migrate. Migration is an instinct caused by seasonal changes in weather and lack of food.

What causes the desire to migrate? Changes in the angle and amount of light rays may trigger migration. Low pressure areas in the fall trigger a southward migration. High pressure in the spring encourages movement to the north. A lack of food in the fall and winter may also send birds toward areas where food supplies are more readily available.

Birds migrate during the day or night. Some of the daytime migrators are larger birds such as geese while some are predators such as hawks. These birds navigate by sight. Songbirds are active at night and migrate in the safety of darkness. Their daylight hours are spent searching for food and resting for the next part of their trip.

The ability of birds to migrate great distances and return to the same general area year after year is a subject which has attracted people for centuries. Daytime migrators fly along broad air routes established by physical features such as major rivers, coastlines, mountains and lakes. The position of the stars and moon and the earth's magnetic field are used by nighttime migrators.

Birds encounter many hazards during their migration. Nighttime and the low-flying migrators risk flying into manmade objects such as tall buildings, power lines and towers, windows and aircraft. Songbirds may encounter hawk-like predators

migrating at the same time. Environment destruction and pollution are also hazards for the migrators.

Storms during migration kill migrant birds. Hunting seasons are established to hunt abundant and desirable species such as ducks and geese during the fall migration. Even though birds are hunted, hunting is allowed within limits that a population of birds can endure. I

1. Which of the following statements is NOT implied in the passage? : 2. Where would birds go when the pressure is high? 3. Which of the following birds would travel during night? 4. What is helpful to the nighttime migrators?

5. What hazard(s) might birds encounter when they migrate? II.

1. It is caused by the change of seasons and lack of food.

2. They would search for food and rest for the next part of their trip. 3. The physical features such as major rivers, coastlines, mountains and lakes. 4. To nighttime and low-flying migrators.

5. Manmade objects, the environmental destruction and pollution; and the hunting of the birds.

Passage II: The Sound of Birds

The sound of birds can be divided into 3 types including singing, crying and voice imitating. Singing is normally a continuous multi-syllable melody uttered by the birds under the control of sex hormone. Some sorts of singing are quite melodious and pleasant. During the breeding cycle, the changing and pleasant cries uttered by male birds are typical singings. Singing is an important way for a bird to defend its

territories, to pronounce it has occupied a place and to warn other birds not to enter the area. The songs uttered by birds in singing are more different and complicated than their common cries, which mainly happen in the breeding cycle in spring and summer. Cries are not controlled by sex hormone and can be uttered by both male and female birds. Usually cries of birds are short and simple. But the cries of birds can mean a lot. They are used to communicate with one another and to inform one another about dangerous information. The cries of birds can express calling, warning, surprising and threatening. Sometimes it is very difficult to distinguish crying and singing. Generally speaking, cries are not affected by the change of seasons and can be uttered by all birds. Crying is an important way for birds to communicate with one another. Voice imitating means a bird is imitating the crying or voice of other birds. The biological meaning of voice imitating is not clear even now and it is highly probable that it will take a long time for people to discover the mystery. I.

1. According to the passage, what are the main types of the sound of birds? 2. Which of the following can NOT be used to describe the singing of birds? 3.In the passage, which is NOT mentioned about the function of the a bird's singing?

4. What is implied in the passage?

5.Which of the following is true according to the passage? II.

l. ( F ) All sorts of singing are quite melodious and pleasant. 2. ( T ) By singing, birds can warn others not to enter their territories. 3. ( F ) Both the songs and cries of birds are controlled by sex hormone. 4. ( T ) Sometimes the singing and crying of birds are similar to each other. 5. ( F ) At present, we have fully understood the 3 types of the sound of birds. Passage I:

Owl is the general name for over 130 types of birds from three families, and most of them are active at night. When the owl flies, its wings are noiseless just like those of a butterfly because the wing's surface is similar to velvet. The owl's feathers are light and dark brown in color. The size of the female owl is larger than the male. An owl usually builds a nest in a building, a tree hole or an abandoned nest of other birds, and some even make their nests on the ground or in a cave. Owls mainly eat insects, birds, small mammals or fish and most of them live on mice. An owl has sharp ears and eyes, and its face can help reflect the sound to its ears during night travel so as to determine the direction of a hunting target. China has 26 out of the world's 132 owls. About 120 of them are typical owls with large prominent eyes and round tails. Owls' size varies from 13 to 15 centimeters to up to 70 centimeters or even larger. They live across the world except the South Pole, and most of them like to live in forest areas. Ancient Chinese literary works recorded the descriptions of owls. Owl's folk names as \cat\government has listed the bird as one of the wildlife for the state second-class protection. 1.

1. How many types of owls are there in the world? 2. Where is an owl likely to build its nest?

3. What can help an owl reflect the sound to its ears during a travel at night? 4. Which of the following is NOT true according to the passage? 5. What is implied in the passage? II.

1）velvet 2）light and dark brown 3）sharp, large, prominent 4）round

5）insect birds 6）small mammals 7）fish 8）mice

9）night cat 10）cat's head eagle PART C Extensive Listening: Tarzan 1) baby 2) replace 3) lost 4) be needs me 5) take 6) in danger. 7) dangerous 8) keep him 9) my son 2.

10) different 11) Close your mouth 12) family 13) two eyes 14) nose 15) That's all right 16) what you see 17) My heart 18) Your heart 19) the best 20) I bet you will LESSON seven Health

1. M: I thought the librarian said we could check out as many books as we need with our library card.

W: That's right, but not those reference books. Q: What does the woman mean?

2. M: I'm really exhausted, but I don't want to miss the film that comes on at eleven. W: If I were you, I would skip it. We both have to get up early tomorrow and anyway, I've heard it isn't that exciting. Q: What does the woman mean?

3.M: I ran into our friend Mark yesterday on the street and he said he hadn't heard from you for a month.

W: Yes, I know. But I've been too busy to phone him. Q: What do we learn from the conversation?

4. M: Mary is in charge of the art and music section and Carol's the sports page. What about you?

W: I'm responsible for the editorials. Q: Where does the woman work?

5. M: I don't know whether to ask Joe or Carol to draw the posters. W: What difference does it make? They are both excellent artists. Q: What does the woman imply about Joe and Carol?

6. M: I wish I didn't have to make a special trip to the post office to get my package. W: Well, if you call them in the morning, they'll give the package to your mail carrier to bring out to you.

Q: What does the woman suggest the man do?

7.M: Hey, George, I can't get to sleep with the light so near my bed. Can't you study someplace else?

M: Sorry, there's a party going on down in the lounge. Q: What will George probably do?

8. M: Hey, that's a great sweater you're wearing. It looks really warm. W: Yeah, but I wish I bought a coat like you did. It's really cold today. Q: What does the woman imply?

9. M: Tom's house is a mess. Doesn't he ever clean it?

W: I guess he just has too much else on his mind with that new job of his. Q: What does the woman imply about Tom?

10. M: You must be looking forward to your trip back to Colorado. It should be fun to hike up into those mountains again.

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