Feathers fall to the ground slowly stones fall much faster. A. but B. while C. although D. yet 题目和参考答案——青夏教育精英家教网—

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Feathers fall to the ground slowly ______ stones fall much faster.

A. but 　　　　 B. while 　　　　　 C. although 　 D. yet

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A. Adults keep pets with their children

B. Pet-keeping has a very long history.

C. Pet-keeping may do harm to animals.

D. People keep pets for their aesthetic need.

E. Caged pets become increasingly popular.

F. Pet-keeping is helpful for children’s growth.

61.______________B

Pet keeping is a time honored tradition. One of the reasons for people to raise dogs or cow's was usefulness. While people in the past hunted animals and kept them in their backyards, the civilized man today is less cruel towards them and is less exploitative (利用的).

62.___________D

We keep animals as pets because they are attractive. We all have the urge to possess something that has aesthetic(美学的) value, and that is why we treasure paintings or fine furniture. Keeping pets is one form of this urge. A Sjamese cat in the house can be a decorative object. Pets are playful animals and they amuse us. A little rabbit amuses us by its playful and lively runs.

63._________F

Many parents find it helpful to have pets in the house for their children. Having pets is an excel lent way of developing in children the love of animals and responsibility. Children get the opportunity to take on full responsibility for another creature’s life. It will be an educational experience for a child to watch the natural life cycle of an animal, '['here arc psychological (心理的) benefits for children. Pets are welcome friends for children who are lonely. Pets are excellent companions. Keeping pets means giving love and being loved. We find comfort in giving care and receiving care in return. We get pleasure from their appearance and their behavior.

64.____________E

As more people move into apartments, there are limitations on keeping of animals like dogs and monkeys. Therefore, caged animals have increased in popularity. Birds fall into this group. We keep them for their beautiful songs and feathers. Fish keeping is a widespread hobby and the keeper can observe their behavior in the tank and study its entire life cycle. The cat is a fine house pet and it fits neatly into human habitation (居住地) without requiring its own cage. They are wonderful hunters, if there are rats around

65.____________C

Pets satisfy man’s desire to care for a bit of nature. The pet owner has the responsibility for supplying those needs that nature provides. Pets are amusing and entertaining, but we are in a way doing animals harm by making them live in a human environment. Are we not enslaving（奴役）them?

根据短文内容，从下框的A~F选项中选出能概括每一段主题的最佳选项，并在答题卡上将该选项涂黑。选项中有一项为多余项。

A. Adults keep pets with their children

B. Pet –keeping has a very long history.

C. Pet-keeping may do harm to animals.

D. People keep pets for their aesthetic need.

E. Caged pets become increasingly popular.

F. Pet-keeping is helpful for children’s growth.

1. Pet-keeping is a time-honored tradition. One of the reasons for people to raise dogs or cows was usefulness. While people in the past hunted animals and keep them in their backyards, the civilized man today is less cruel towards them and is less exploitative(利用的).

2. We keep animals as pets because they are attractive. We all have the urge to possess something that has aesthetic(美学的) value, and that is why we treasure paintings or fine furniture. Keeping pets is one form of this urge. A Siamese cat in the house can be a decorative object. Pets are playful animals and they amuse us. A little rabbit amuses us by its playful and lively runs.

3. Many people find it helpful to have pets in the house for their children. Having pets is an excellent way of developing in children the love of animals and responsibility. Children get the opportunity to take on full responsibility for another creature’s life. It will be an educational experience for a child to watch the natural life cycle of an animal. There are psychological (心理的) benefits for children. Pets are welcome friends for children who are lonely. Pets are excellent companions. Keeping pets means giving love and being loved. We find comfort in giving care and receiving care in return. We get pleasure from their appearance and their behavior.

4. As more people move into apartments, there are limitations on keeping of animals like dogs and monkeys. Therefore, caged animals have increased in popularity. Birds fall into this group. We keep them for their beautiful songs and feathers. Fish-keeping is a widespread hobby and keeper can observe their behavior in the glass tank and study its entire life cycle. The cat is a fine house pet and it fits neatly into human habitation(居住地) without requiring its own cage. They are wonderful hunters, if there are rats around.

5.Pets satisfy man’s desire to care for a bit of nature. The pet owner has the responsibility for supplying those needs that nature provides. Pets are amusing and entertaining, but we are in a way doing animals harm by making them live in a human environment. Are we not enslaving(奴役) them?

根据短文内容，从下框的A---F选项中选出能概括每一段主题的最佳选项，并在答题卡上将该选项涂黑。选项中有一项为多余选项。

Adults keep pets with their children.

Pet-keeping has a very long history.

Pet-keeping may do harm to animals.

People keep pets for their aesthetic need.

Caged pets become increasingly popular.

Pet-keeping is helpful for children’s growth.

Pet-keeping is a time-honored tradition. One of the reasons for people to raise dogs or cows was usefulness. While people in the past hunted animals and kept them in their backyards, the civilized man today is less cruel towards them and is less exploitative(利用的).

We keep animals as pets because they are attractive. We all have the urge to possess something that has aesthetic（审美的）value, and that is why we treasure paintings or fine furniture. Keeping pets is one form of this urge. A Siamese cat in the house can be a decorative object. Pets are playful animals and they amuse us. A little rabbit amuses us by its playful and lively runs.

Many parents find it helpful to have pets in the house for their children. Having pets is an excellent way of developing in children the love of animals and responsibility. Children get the opportunity to take on full responsibility for another creature’s life. It will be an educational experience for a child to watch the natural life cycle of an animal. There are psychological(心理的) benefits for children. Pets are welcome friends for children who are lonely. Pets are excellent companions. Keeping pets means giving love and being loved. We find comfort in giving care and receiving care in return. We get pleasure from their appearance and their behavior.

As more people move into apartments, there are limitations on keeping of animals like dogs and monkeys. Therefore, caged animals have increased in popularity. Birds fall into this group. We keep them for their beautiful songs and feathers. Fish-keeping is a widespread hobby and the keeper can observe their behavior in the glass tank and study its entire life cycle. The cat is a fine house pet and it fits neatly into human habitation(居住地) without requiring its own cage. They are wonderful hunters, if there are rats around.

根据短文内容，从下框的A---F选项中选出能概括每一段主题的最佳选项。选项中有一项为多余选项。

Adults keep pets with their children.

Pet-keeping has a very long history.

Pet-keeping may do harm to animals.

People keeps pets for their aesthetic need.

Caged pets become increasingly popular.

Pet-keeping is helpful for children’s growth.

Pet-keeping is a time-honored tradition. One of the reasons for people to raise dogs or cows was usefulness. While people in the past hunted animals and kept them in their backyards, the civilsed man today is less cruel towards them and is less exploitative(利用的).

We keep animals as pets because they are attractive. We all have the urge to possess something that has aesthetic（审美的）value, and this is why we treasure paintings or fine furniture. Keeping pets is one form of this urge. A Siamese cat in the house can be a decorative object. Pets are playful animals and they amuse us. A little rabbit amuses us by its playful and lively runs.

Many parents find it helpful to have pets in the house for their children. Having pets is an excellent way of developing in children the love of animals and responsibility. Children get the opportunity to take on full responsibility for another creature’s life. It will be an educational experience for a child to watch the natural life cycle of an animal. There are psychological benefits for children. Pets are welcome friends for children who are lonely. Pets are excellent companions. Keeping pets means giving love and being loved. We find comfort in giving care and receiving care in return. We get pleasure from their appearance and their behavior.

As more people move into apartments, there are limitations on keeping of animals like dogs and monkeys. Therefore, caged animals have increased in popularity. Birds fall into this group. We keep them for their beautiful songs and feathers. Fish-keeping is a widespread hobby and the keeper can observe their behavior in the glass tank and study its entire life cycle. The cat is a fine house pet and it fits neatly into human habitation(居住地) without requiring its own cage. They are wonderful hunters, if there are rats around.

All penguins (企鹅) swim in cold waters and so need a good layer of insulation (隔离), some species come ashore in hot places.Humboldt penguins,for example,nest in arid hot - 40°C, deserts on the west coast of South America, while others survive the lowest temperatures of any animals.Male Emperor penguins,as we know, spend the Antarctic winters incubating eggs in temperatures that can fall below -70°C. The insulation is provided in layers, under the skin is a thick layer of fat, then there is a layer of downy feathers that trap air, and finally another layer of waterproof feathers that keep the cold water away from the skin. With all this insulation penguins have no problem keeping warm at temperatures down to about -10°C - although they have special adaptations of the circulatory system to keep their feet from freezing and to prevent much heat loss through the feet that are on the ice. At lower temperatures penguins have to huddle (蜷缩) together to keep warm. In such huddles the penguins gradually move from the hot interior to the cold outside so that every penguin has his turn in the middle and on the outside.

In hot climates, penguins suffer greatly from overheating. They use several strategies to lose heat. They puff up their feathers so that air can circulate to their skin; they hold their flippers（脚蹼）out from their bodies and pump hot blood to them so that they can act as radiators; they open their mouths and breathe to lose heat from their hot breath; and those species that live in hot climates also have several bare patches of skin around the eyes and feet, they send blood to these bare patches when they are hot - you can recognize a hot penguin since it will have pink eye patches and pink patches on its feet.

77. Which of the following are the ways for penguins to keep warm?

a. staying together in good social order

b. several layers as radiators

c. a special circulatory system d. waterproof feathers

e. sending blood to bare patches

f. always staying in the middle

A. a, b, c B. a, c, d C. b, c, e D. c, d, f

78. The insulation consists of _______ layers.

A. two B. three C. four D. five

79. The underlined "puff up" in the second paragraph can be replaced by ______.

A. breathe deeply B. blow up C. hold tight D. spread out

80. The passage mainly tells us ______.

A. how penguins stay warm in cold places B. that penguins are a clever animal

C. how penguins keep their temperature D. why penguins can live a safe life

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