模拟题精练
Passage 1
The fridge is considered a necessity, it has been so since the 1960s when packaged food first appeared with the label: “Store in the refrigerator.”
In my fridgeless Fifties childhood, I was fed well and healthy. The milkman came daily, the grocer, the butcher (肉商), the baker, and the ice-cream man delivered two or three times a week. The Sunday meat would last until Wednesday and surplus (剩余的) bread and milk became all kinds of cakes. Nothing was wasted, and we were never troubled by rotten food. Thirty years on, food deliveries have cead, fresh vegetables are almost unobtainable in the country.
The invention of the fridge contributed comparatively little to the art of food prervation. A vast way of well-tried techniques already existed—natural cooling, drying, smoking, salting, sugaring, 委托书怎么写的
What refrigeration did promote was marketing—marketing hardware and electricity, marketing soft drinks, marketing dead bodies of animals around the globe in arch of a good price.虎怎么画
Conquently, most of the world’s fridges are to be found, not in the tropics where they might prove uful, but in the wealthy countries with mild temperatures where they are climatically almost unnecessary. Every winter, millions of fridges hum away continuously, and at vast expens, busily maintaining an artificially-cooled space inside an artificially-heated hou—while outside, nature provides the desired temperature free of charge.
The fridge’s effect upon the environment has been evident, while its contribution to human happiness has been insignificant. If you don' t believe me, try it yourlf. Invest in a food cabinet and turn off your fridge next winter. You may miss the hamburgers (汉堡包), but at least you’ll get rid of that terrible hum.
Questions:
建材导购
1. The statement “In my fridgeless Fifties childhood, I was fed well and healthy.” suggests that __________.
2. Why does the author say that nothing was wasted before the invention of fridegs?
3. Who benefited the least from fridges according to the author?
4. Which phra in the fifth paragraph indicated the fridge’s negative effect on the environment?
5. What is the author’s overall attitude toward fridges? 陈翔的照片
Passage 2米酒鸡蛋的做法
Before a new airliner goes into rvice, every part of it is tested again and again. But there are two tests that are more important than all the others. One of them is very strange and the other is very dangerous.
笔记本屏幕尺寸
The first of the is called the “tank test”. A modern airliner must fly at very high altitude
s. Air must be pumped into the plane so that the pasngers can breathe. The metal structure of the plane has to be very strong for this reason. When the plane is filled with air, the air press against the skin of the plane inside. The pressure on a small window, for example, is like a huge, giant foot that is trying to get out. If a small part of the plane were to crack, the plane would explode in the sky. In order to test the structure of the plane, it is lowered into a huge tank of water. Then it is filled with air. The pressure inside the plane is greater than it ever will be when it is in the air. Finally, there is an explosion. This does not cau so much damage inside the water tank as it would anywhere el. Engineers can discover which part of the plane has cracked. This part is made stronger.
The most dangerous test happens when the new plane is going through test flights in the air. The test pilot must find out exactly what happens when all the engines are shut off at once. He takes the plane up very high. Then he shuts the engine off. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again.
Questions:
1. Before a new airliner goes into rvice, there are two important tests which can be described as ________ and ________ respectively.
2. The purpo of the tank test is to find out if there are any weak parts that ________.
3. The plane lowered into a huge tank of water for the first important test becau there would be less damage when ________.
4. When is the cond important test made?
入户申请表5. In what n is the cond test most dangerous?
Passage 3坐飞机什么不能带
A growing world's population and the discoveries of science may alter this pattern of distribution in the future. As men slowly learn to master dia, control floods, prevent famines, and stop wars, fewer people die every year; and in conquence the population of the world is steadily increasing.
When numbers ri, the extra mouths must be fed. New lands must be brought under cultivation, or land already farmed made to yield larger crops. In some areas the accessible land is largely so intensively cultivated that it will be difficult to make it provide more food. In some areas the population is so den that the land is parceled out in units too tiny to allow for much improvement in farming methods. Were a large part of this farming population drawn off into industrial occupations, the land might be farmed much more productively by modern methods.
