四级阅读考前补习6

【简介】感谢网友“星晟星月”参与投稿，下面是小编整理的四级阅读考前补习6（共5篇），欢迎您阅读分享借鉴，希望对您有所帮助。

篇1：四级阅读考前补习6

四级阅读考前补习（6）

Test Six?

1

It is common knowledge that drug abuse leads to harmful consequences. Why then do people―particularly youngsters―continue to use drugs? Psychologists claim  that there are three basic motivations that influence people to take drugs: curiosity, stress and environmental factors. Sometimes, youngsters take drugs simply because they are curious. Taking drugs seems to be the “in?thing” for their generation, so they want to know what drugs are like. The trouble is that they do not know that taking soft and seemingly innocuous(无害的) drugs can develop into cravings(渴望) for stronger stuff later on. In some cases, youngsters are depressed or frustrated because of problems related to parents, school or the opposite sex. They take drugs to escape from the stress brought on by all these problems. In other cases, the environment is conductive to taking drugs. If, for instance, a youngster belongs to a community, school, or peer group where other youngsters take drugs, he may soon be tempted to follow suit, for fear of ostracism or non?acceptance.

?There is a growing consensus nowadays among social workers and psychologists that the best possible approach to the problem of drug addiction among the young is for school authorities, social workers and the Police Narcotics Division to work together to provide young people with much?needed education on the effects and dangers of drug abuse. Moreover, parents can do a great job in leading children away from drugs. They should spend more time with their children, listening and talking to them. Most importantly, parents should show them attention, concern and love. Parents who always scream at their children and nag(唠叨) them about their failings and weaknesses are regarded as unwitting drug pushers. As far as young people are concern

篇2：六级阅读考前补习6

六级阅读考前补习（6）

Test Six??

1?

Sometimes the U.S. government goes out of its way to prove it can be an absolute nuisance. Take the case of Southern Clay, Inc., which has a factory at Paris, Tennessee, putting out a clay product for cat?boxes best known as “Kitty Litter.”?It’s a simple enough process, but the Federal Mine Safety and Health Administration insists that since clay comes from the ground―an excavation half a mile from the Kitty Litter plant―the company actually is engaged in mining and milling. Therefore, says MSHA, Southern Clay is subject to all the rules that govern, say, coal miners working in shafts several hundred feet down.?

The company has been told to devise an escape system and fire?fighting procedure in case there is a fire in its “mine.” Southern Clay estimates it will lose 6,000 man?hours in production time giving its 250 factory workers special training in how to escape from a mine disaster.?

One thing that has always impressed us about cats, in addition to their tidiness, is that they seem to watch the human world with a sense of wise and detached superiority, as though they wondered what the hustle and bustle is all about. If they grin from time to time, as some people insist, it’s no wonder.

1. The author’s purpose in writing this passage is to ____.?

A. explain how Kitty Litter is produced?

B. describe the Mine Safety and Health Administration?

C. show how tidy cats are?

D. show that the government can sometimes be a nuisance?

2. The clay excavation is ____.?

A. half a mile underground?

B. several miles from Paris, Tennessee?

C. worked by miners in shafts several hundred feet down?

D. half a mile from the Kitty Litter plant?

3. What is the meaning of “man?hour”??

A. The time needed in finishing the work by one man.?

B. The work done by one man in one hour.?

C. The man needed in finishing the work in one hour.?

D. The work done by one man

篇3：四级阅读考前补习3

四级阅读考前补习（3）

Test Three

1

It is hard to get any agreement on the accurate meaning of the term “social class”. In everyday life, people tend to have a different approach to those theyconsider their equals from that which they assume with people they consider higher or lower than themselves in the social scale. The criteria we use to “place” a new acquaintance(熟人), however, are a complex mixture of factors. Dress, way of speaking, area of residence in a given city or province, education and manners all play a part.

?In Greece, after the sixth?century B.C., there was a growing conflict between the peasants and the landed aristocrats(贵族), and a gradual decrease in the power of the aristocracy when a kind of “middle class” of traders and skilled workers grew up. The population of Athens, for example, was divided into three main classses which were politically and legally distinct. About one?third of the total were slaves, who did not count politically at all, a fact often forgotten by those who praise Athens as the nursery of democracy. The next main group consisted of resident foreigners, the “metics”, who were freemen, though they two were allowed no share in political life. The third group was the powerful body of “citizens”, who were themselves divided into sub?classes.

?In the later Middle Ages, however, the development of monetary economy and the growth of cities and trade led to the rise of another class, the “burghers” or city merchants and mayors. These were the predecessors of the modern middle classes. Gradually high office and occupation assumed importance in determining social position, as it became more and more possible for a person born to one station in life to move to another. This change affected the towns more than the country areas, wher

篇4：四级阅读考前补习4

四级阅读考前补习（4）

Test Four

1

In the early days of sea travel, seamen on long voyages lived exclusively on salted meat and biscuits. Many of them died of scurvy(坏血病), a disease of the blood which causes swollen gums, livid white spots on the flesh and general exhaustion. On one occasion, in 1535, an English ship arrived in Newfoundland with its crew desperately ill. The men’s lives were saved by Iroquois Indians who gave them vegetable leaves to eat. Gradually it came to be realized that scurvy was caused by some lack in the sailors’ diet and Captain Cook, on his long voyages of discovery to Australia and New Zealand, established the fact that scurvy could be warded off by the provision of fresh fruit for the sailors.

?Nowadays it is understood that a diet which contains nothing harmful may yet result in serious disease if certain important elements are missing. These elements are called “vitamins”. Quite a number of such substances are known and they are given letters to identify them, A, B, C, D, and so on. Different diseases are associated with deficiencies of particular vitamins. Even a slight lack of Vitamin C, for example, the vitamin most plentiful in fresh fruit and vegetables, is thought to increase significantly our susceptibility(敏感度) to colds and influenza.

?The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruit and green vegetables. It is only when people try to live on a very restricted diet, say during extended periods of religious fasting(斋戒), or when trying to lose weight, that it is necessary to make special provision to supply the missing vitamins.

?1. Scurvy is a disease that is provoked by ____

?A. salted meat and biscuits

?B. exhaustion

?C.

篇5：四级阅读考前补习2

四级阅读考前补习（2）

Test Two?

1

If the salinity(含盐量)of ocean waters is analyzed,it is found to vary only slightly from place to place.Nevertheless,some of these small changes are important.There are three basic processes that cause a change in oceanic salinity.One of these is the subtraction of water from the ocean by means of evaporation―conversion of liquid water to water vapour.In this manner,the salinity is increased,since the salts stay behind.If this is carried to the extreme,of course,white crystals of salt would be left behind; this, by the way,is how much of the table salt we use is actually obtained.?

The opposite of evaporation is precipitation(降水),such as rain,by which water is added to the ocean.Here the ocean is being diluted(冲淡)so that the salinity is decreased.This may occur in areas of high rainfall or in coastal regions whererivers flow into the ocean.Thus salinity may be increased by the substraction of the water by evaporation,or decreased by the addition of fresh water by precipitation or runoff.?

Normally,in tropical regions where the sun is very strong,the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation.Similarly,in coastal regions where rivers dilute the sea,salinity is somewhat lower than in other oceanic areas.?

A third process by which salinity may be altered is associated with the formation and melting of sea ice.When seawater is frozen,the dissolved materials are left behind.In this manner,seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared.Of course,when this ice melts,it will tend to decrease the sal