Many people believe the glare（炫目的光）from snow causes snowblindness. Yet, with dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness ,when exposed to several hours of“ snow light”.

　　The United States army has now determined that glare from snow does not cause snowblindness in troops in a snow -covered country. Rather ,a man’s eyes frequently find nothing to focus on （聚集） in a broad space of snow- covered without- grass land. So his gaze continually moves and jumps back and forth over the entire landscape in search of something to look at. Finding something, hour after hour, the eyes never stop searching and the eyeballs become tired and the eye muscles ache. Nature makes up for this discomfort by producing more and more fluid （流 体） which covers the eyeball. The fluid covers the eyeball in increasing quantity until it makes eyes difficult to see dearly, and the result is total, even though for a short time, snowblindness.

　　Experiments led the Army to a simple method of overcoming this problem. Scouts（侦察兵）ahead of the troops are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow - covered landscape. Even the scouts themselves throw lightweight, dark - colored objects ahead on which they can focus too. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop searching the snow -blanketed landscape. By focusing their attention on one object at a time. the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a continuous white land is overcome.

To prevent snowblindness caused by the strong light from snow, wearing glasses or not ________.

　　A. depends on whether the snow is white enough

　　B. makes no difference

　　C. makes much difference

　　D. depends on whether the snow is thick

When the eyes are tired, tears flow out ________.

　　A. to clear the vision

　　B. to make the eyes stop searching

　　C. to make the vision unclear

　　D. to produce more and more liquid

Snowblindness can be avoided ________.

　　A. by moving one’s gaze back and forth

　　B. by walking ahead and keeping looking around

　　C. by making up for the discomfort of one’s eyes

　　D. by providing the eyes with something to focus on

Almost every day we come across situations in which we have to make decissions one way or another. Choice, we are given to believe, is a right. But for a good many people in the world, in rich and poor countries, choice is a luxury, something wonderful but hard to get, not a right. And for those who think they are exercising their right to make choices, the whole system is merely an illusion, a false idea created by companies and advertisers hoping to sell their products.

　The endless choice gives birth to anxiety in people's life. Buying something as basic as a coffee pot is not exactly simple. Easy access to a wide range of everyday goods leads to a sense of powerlessness in many people, ending in the shopper giving up and walking away, or just buying an ubsuitable item that it is not really wanted. Recent studies in England have shown that many electrical goods bought in almost every family are not really needed. More difficult decision-making is then either avoided or trusted into the hands of the professionals,lifestyle instructors,or advisors.

　　It is not just the availability of the goods that is the problem, but the speed with which new types of products come on the market. Advances in design and production help quicken the process. Products also need to have a short lifespan so that the public can be persuaded to replace them within a short time. The typical example is computers, which are almost out-of-date once they are bought. This indeed makes selection a problem. Gone are the days when one could just walk with ease into a shop and buy one thing: no choice, no anxiety.

60. What does the author try to argue in Paragraph 1?

A. The exercise of rights is a luxury　

B. The practice of choice is difficult

C. The right of choice is given but at a price　

D. Choice and right exist at the same time

61. Why do more choices of goods give rise to anxiety?

A. Professionals find it hard to decide on s suitable product

B. People are likely to find themselves overcome by business persusion.

C. Shoppers may find themselves lost in the broad range of items.

D. Companies and advertisers are often misleading about the range of choice.

62. By using computers as an example, the author wants to prove 　　.

A. advanced products meet the needs of people.

B. products of the latest design flood the market

C. competitions are fierce in high-tech industry

D. everyday goods needs to be replaced often

63. What is the passage mainly about?

A. The variety of choices in modern society　　　　　

B. The opinions on people's right in different countries

C. The problem about the availability of everyday goods

D. The helplessness in purching decisions

 —Such a mistake could have been avoided.

   —Unfortunately, he _______ the mistake again and again.

   A．repeated　　　　　　　　　　           B. would repeat

   C．had repeated　　　　　　　　            D. would have repeated

     Habits, whether good or bad, are gradually formed. When a person does a certain thing again, he is driven by some unseen force to do the same thing repeatedly, then a habit is formed. Once a habit is formed, it is difficult, and sometimes impossible, to get rid of. It is therefore very important that we should pay great attention to the formation of habits. Children often form bad habits, some of which remain with them as long as they live. Older persons also form bad habits lasting as long as they live, and sometimes become ruined by them.

　　There are other habits which, when formed in early life, are of great help. Many successful men say that much of their success has something to do with certain habits in early life, such as early rising, honesty and so on.

　　Among the habits which children should not form are laziness, lying, stealing and so on. These are all easily formed habits. Unfortunately older persons often form habits which could have been avoided(避免).

　　We should keep away from(远离) all these bad habits, and try to form such habits as will be good for ourselves and others.

40. ________ are formed little by little.

　　A. Good habits

B. Bad habits

　　C. Both good habits and bad habits

　　D. Either good habits or bad habits

41. The underlined word "them" in the first paragraph refers to ________.

　　A. bad habits                              B. good habits

　　C. children                                 D. other persons

42. Generally speaking, it's difficult for one ________ and easy for them ________ which should be avoided.

　　A. to form bad habits; to form good habits

　　B. to form good habits; to form bad habits

　　C. to form such habits as will be good; to get rid of bad habits

　　D. to get rid of bad habits; to form good habits

43. Why should we pay much attention to the formation of habits?

　　A. Because habits are of great help to every one of us.

　　B. Because a man can never get rid of a habit.

　　C. Because it's hard and sometimes even impossible to throw away bad habits.

　　D. Because we are forced to do them again and again.

44. According to the passage, early rising ________.

　　A. has something to do with success

　　B. is an easily formed habit

　　C. is such a habit as should have been avoided

　　D. is such a habit as will be kept

　Many people believe the glare（炫目的光）from snow causes snowblindness. Yet, with dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snowblindness ,when exposed to several hours of“snow light”.

　　The United States army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. Rather, a man’s eyes frequently find nothing to focus on（聚集）in a broad space of snow-covered without-grass land. So his gaze continually moves and jumps back and forth over the entire landscape in search of something to look at. Finding something, hour after hour, the eyes never stop searching and the eyeballs become tired and the eye muscles ache. Nature makes up for this discomfort by producing more and more fluid（流体）which covers the eyeball. The fluid covers the eyeball in increasing quantity until it makes eyes difficult to see dearly, and the result is total, even though for a short time, snowblindness.

　　Experiments led the Army to a simple method of overcoming this problem. Scouts（侦察兵）ahead of the troops are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark-colored objects ahead on which they can focus too. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop searching the snow-blanketed landscape. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snowblind or lost. In this way the problem of crossing a continuous white land is overcome.

To prevent snowblindness caused by the strong light from snow, wearing glasses or not _____.

　　A. depends on whether the snow is white enough    　B. makes no difference

　　C. makes much difference        　　            D. depends on whether the snow is thick

When the eyes are tired, tears flow out ______.

　　A. to clear the vision                             B. to make the eyes stop searching

　　C. to make the vision unclear                      D. to produce more and more liquid

Snowblindness can be avoided ________.

　　A. by moving one’s gaze back and forth

　　B. by walking ahead and keeping looking around

　　C. by making up for the discomfort of one’s eyes

　　D. by providing the eyes with something to focus on