题目内容
If we ________ birth control earlier, China ________ such a large population.
- A.had begun; wouldn’t have
- B.had begun; wouldn’t have had
- C.began; wouldn’t have
- D.should begin; wouldn’t have had
名校课堂系列答案Directions：For each blank in the following passage there are four words or phrases marked A，B，C and D．Fill each blank with a word or phrase that best fits the context．
In the past, man didn’t have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be 36 .
Today things are 37 , and the world has become too 38 . We’re using up our natural resources too quickly, and at the same time we are 39 our environment with dangerous chemicals. If we continue to do this, human life on the earth will not survive.
Everyone 40 today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing 41 , more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the land. Yet, we 42 to use bigger and more powerful machines to cut down more and more trees.
We know that if rivers are polluted with waste products from factories, we’ll die. 43 , in most countries wastes are still put into rivers or into the sea, and there are 44 laws to stop this.
We know, too, that if the 45 of the world continues to rise at the present rate, in a few years there will not be enough food . What can we do to solve these problems?
If we eat more vegetables and less meat there will be more food available for every one. Land that is used to grow crops 46 five times more people than land where animals are kept. Our natural resources will last longer if we learn to recycle them.
The world population will not rise so quickly if people use modern methods of birth control.
Finally, if we educate people to think about the problems, we shall have a better and cleaner 47 in the future.
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| Is veg food healthier than non-veg food? I feel this is a very common topic that people speak on．Please give me your opinions on this topic． | |
| Rao 12-18-08 | So far as veg food is concerned, it is also proved to be a healthy and nutritious diet, but has very few items which can provide us with proteins, but if you see non-veg food like eggs, chicken, and many more, such foods have a large content of proteins in them. |
| Sai 12-19-08 | Man basically is herbivorous（食草的）. If we look at the animal kingdom We can see that all the herbivorous animals have the similar dental（牙齿的） structure, which clearly shows that the human being also ought to be vegetarian by birth. It is only the living conditions that make man carnivorous（食肉的）. The vegetarian foods are easily digestible. |
| Santos 12-20-08 | Non-veg food items are better than veg items. A healthy person requires complete diet and veg+ meat makes the diet complete. The only caution that needs to be taken is not to have non-veg items on a daily basis. Once in a week or couple of weeks will be best. |
| Krishna 01-03-09 | When we eat non-veg, we are all veg by nature. The chicken that we eat feeds on grains, the mutton that we eat feeds on grass, and the fish that we eat feeds on simple plants. So non-veg food by logic（逻辑）is better and suited for hauman beings. |
| Khan 01-05-09 | Non-veg food is equally important in our diet as it helps in many ways, especially fish and other seafood as fish contains omega 3 which makes our immune system（免疫系统）stronger. Do you know that most of the veg food put together does not contain as much omega 3 as fish alone contains! |
A．It damages our immune system.
B．It has few nutrients.
C．It contains too much omega 3.
D．It is lacking in protein.
69．In the opinion of Sai, humans are born vegetarian because humans______.
A．have the same teeth structure as plant-eating animals
B．believe that veg foods are good for their teeth
C．belong to the plant-eating animal family
D．can adapt to the living conditions like plant-eating animals
70．What advice is given by Santos?
A．To have a saily veg+ meat diet.
B．Not to eat non-veg food every day.
C．To eat digestible food every day.
D．Not to eat food without protein.