题目内容

Goats eat ________ they can find.

[  ]

A. however
B. whichever
C. whatever
D. wherever

答案:C
提示:

however和wherever是连接副词,不能在宾语从句中作宾语,应先排除. whatever是what的强调形式,表示“无论什么”、“不管什么”,即引导宾语从句又在从句中作find的宾语. 本句意为“山羊什么都吃”.


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Plants and animals usually do not live apart, as in many ways they are important to each other. Most green plants can make their own food. The food of other living things, even the food of meat-eating animals, comes directly or indirectly from green plants. For example, some people eat mutton (羊肉); mutton comes from a goat; the goats eat grass. These steps, or links, make up what is called a food chain. Without green plants, all other living things would in time die of starvation.

Plants help animals in other ways too. They furnish homes and shelter for many animals. Many birds, as you know, build their nests in trees. Deer and many other animals use bushes for shel­ter. And even man depends much upon plants for his shelter. Animals repay some of this debt by helping plants. You may be aware that many insects and some birds do important work for plants by pollinating (授粉) them. You must have also learned how animals often help plants by spreading seeds.

What is waste material for one of these kinds of life is often valuable substance for the other. For example, animals give off carbon dioxide gas when they breathe. When plants make food, they absorb this gas from the air, using the carbon and releasing some of the oxygen back into the air. The oxygen that is released, then, is again supplied to animals. Thus the cycle continues, ani­mals helping plants, and plants helping animals.

All plants and animals have their enemies. Insects eat plants; birds eat insects; other animals kill birds. But here too, animals such as birds and bats help the plants by destroying harmful in­sects. Many plants and animals are helpful to some living things but are harmful to others. Then there are other rules in nature that act as checks and balances. For example, if there are more animals in a certain area than there is food to support them, some of the animals must mi­grate or starve. In either case, the number of animals will be reduced until the balance between animals and the available food supply is restored.

These helps and hindrances (障碍) are constantly going on in the plant and animal world to achieve a balance. As long as one living thing is dependent on another, whenever the scales are tipped (使倾斜), nature takes steps to balance the scales again.

 (Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

1.What does the author mean by saying “Plants and animals usually do not live apart”?

2.Besides providing food and shelter for animals, plants can also ______ to help animals to live.

3.“Checks and balances” refers to ______ in the world of animals and plants.

4.What will be the final result if some animals migrate or starve for lack of food?

 

American farmers are raising five percent more goats for meat these days.

  Goat meat is high in protein(蛋白质)and lower in unhealthy fat than many other meats.Even so,the industry is small compared to chicken,beef and pork. But immigration has brought more of a taste for goat to America from all over the world.

  Experts from the University of Illinois offer some questions for people to consider if they are thinking about raising goats.

  First of all,do you understand that there always has to be someone to care for the goats?

  ◆How much land do you have available? And how good is it? Poor ground may support two to four goats on half a hectare.Better grassland can support six to eight. If goats and cattle share the land,two goats can be added for each cow. The goats will eat weeds and other plants that cattle do not like.

  ◆Do you have buildings for the number of female goats you plan to keep during winter? An open,cold,dry barn is better than a closed,warm barn where the air is wet.

  ◆Do you have the equipment to clean barns(畜棚) and to harvest hay(草料) to feed your goats? Or will you get someone else to do it,or buy the hay?

  The experts say a profitable business in goat meat may take three to five years to establish.And, of course, there are no guarantees .

1.On which section of a newspaper will this passage appear?

A.International Affairs     B.Entertainment

C.Agriculture                      D.Culture

2.Which of the following is NOT a factor in making goat meat more popular?

A.Goat meat is healthy food.

B.Immigrants bring different tastes.

C.The industry still leaves room for profit.

D.Raising goats is challenging.

3.If someone has two hectares of good grass land, what is the maximum number of cows and goats he can raise?

A.32 cows and 64 goats.                                               B.32 cows and 32 goats.

C.16 cows and 32 goats.                                             D.8 cows and 16 goats.

4. What is the experts’ opinion about the goat-raising business?

A.You can make sure money.

B.You had better be cautious and patient.

C.Goats are hardly possible to raise.

D.Goat meat still needs to be recognized.

 

Plants and animals usually do not live apart, as in many ways they are important to each other. Most green plants can make their own food. The food of other living things, even the food of meat-eating animals, comes directly or indirectly from green plants. For example, some people eat mutton (羊肉); mutton comes from a goat; the goats eat grass. These steps, or links, make up what is called a food chain. Without green plants, all other living things would in time die of starvation.

Plants help animals in other ways too. They furnish homes and shelter for many animals. Many birds, as you know, build their nests in trees. Deer and many other animals use bushes for shel­ter. And even man depends much upon plants for his shelter. Animals repay some of this debt by helping plants. You may be aware that many insects and some birds do important work for plants by pollinating (授粉) them. You must have also learned how animals often help plants by spreading seeds.

What is waste material for one of these kinds of life is often valuable substance for the other. For example, animals give off carbon dioxide gas when they breathe. When plants make food, they absorb this gas from the air, using the carbon and releasing some of the oxygen back into the air. The oxygen that is released, then, is again supplied to animals. Thus the cycle continues, ani­mals helping plants, and plants helping animals.

All plants and animals have their enemies. Insects eat plants; birds eat insects; other animals kill birds. But here too, animals such as birds and bats help the plants by destroying harmful in­sects. Many plants and animals are helpful to some living things but are harmful to others. Then there are other rules in nature that act as checks and balances. For example, if there are more animals in a certain area than there is food to support them, some of the animals must mi­grate or starve. In either case, the number of animals will be reduced until the balance between animals and the available food supply is restored.

These helps and hindrances (障碍) are constantly going on in the plant and animal world to achieve a balance. As long as one living thing is dependent on another, whenever the scales are tipped (使倾斜), nature takes steps to balance the scales again.

(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

81. What does the author mean by saying “Plants and animals usually do not live apart”?

82. Besides providing food and shelter for animals, plants can also ______ to help animals to live.

  

83. “Checks and balances” refers to ______ in the world of animals and plants.

84. What will be the final result if some animals migrate or starve for lack of food?

    

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