There are many different ways of seeing a town for the first time. One of them is to walk around it, guide-book   36   hand. Of course, we may   37   with our guide-books the history and   38   developments of a town and get to know them.   39   then, if we take out time and   40   in a town for a while, we may get to know it better. When we   41   it as a whole, we begin to have some   42   ,which even the best guide-books do not answer. Why is the town just   43   this, this shape, this plan, this size? Why do its streets   44    in this particular way, and not in any   45   why?

   Here even the best guide-book   46   us. One can’t find in it the information about how a town has developed to the   47   appearance. It may not describe the original (最初的)   48   of a town. However, one may get some idea of what I   49   look like by walking around the town. One can also imagine   50   the town was first planned and build. Then one can learn more about in what direction the town   51   to develop.

   What is the   52   of studying towns in the way? For me, it is   53   that one gets a greater depth of pleasure by visiting and seeing a town with one’s own eyes. A   54   visit to a town may help one better understand why it is attractive   55   just reading about it in a guide-book.

　　The world is not only hungry, it is also thirsty for water. This may seemstrange to you, since nearly 75％of the earth's surface is covered with water. But about 97％ of this huge amount is seawater, or salt water. Man can only drink and use the other 3％--the fresh water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of icebergs and glaciers. Even worse, some of it has been polluted.

　　However, as things stand today, this small amount of fresh water, which is constantly being replaced by rainfall is still enough for us. But our need for water is increasing rapidly almost everyday. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. A limited water supply would have a bad effect on agriculture and industry. Let me give you just one small example of how necessary water is to industry. Did you know that to produce a single ton of steel, it takes about 91000 litres of water?

　　We all have to learn how to stop wasting our precious water. One of the first steps we should take is to develop ways of reusing it. Experiments have already been done in this field, but only on small scale. The systems that have been worked out are similar to those used in spacecraft.

(1) “The world...is also thirsty for water.” this means that ________.

[　　]

A．the world has not enough fresh water to meet our future needs

B．people all over the world are thirsty for water now

C．we are now facing a serious problem of world-wide water shortage

D．we cannot make use of all the fresh water on earth

(2) According to the passage, only about ________ of the earth's surface is covered with fresh water that can be used.

[　　]

(3) We may face a severe worldwide water shortage in the future because ________.

[　　]

A．the small amount of fresh water is constantly being replaced by rainfall

B．some of it has been polluted

C．some of it is in the form of icebergs and glaciers

D．our need for fresh water is increasing rapidly

(4) According to the passage, one of the first problems is ________.

[　　]

A．to deal with water problem now

B．to have lectures on the water subject

C．to develop ways of reusing water

D．to work out systems that resemble those used in spacecraft

(5) This passage is mainly about ________.

[　　]

－If we take a plane, we'll of course have arrived in Paris by the next weekend. (皖南八校)

  －Don't be sure, we should______the weather factor. What shall we do if it is foggy?

  A. leave alone                   B. allow for                      C. look over                       D. take advantage of

Are some people born clever, and others born stupid? Or is intelligence developed by our environment and our experiences? Strangely enough，the answer to both these questions is yes. To some extent（程度）our intelligence is given to us at birth，and special education can never make a genius(天才) out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person’s intelligence are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts can be supported in a number of ways.
It is easy to say that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical twins, they  will very likely be as intelligent as each other. Relations like brothers and sisters，parents and children，usually have similar intelligence, and this clearly suggests that intelligence depends on birth.
Imagine that now we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth plays a part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all, are likely to have similar degrees of intelligence.
【小题1】By using the example that two people closer in blood relationship are closer in intelligence that writer wants to prove    _    .

Are some people born clever, and others born stupid? Or is intelligence developed by our environment and our experiences? Strangely enough，the answer to both these questions is yes. To some extent（程度）our intelligence is given to us at birth，and special education can never make a genius(天才) out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person’s intelligence are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts can be supported in a number of ways.

It is easy to say that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical twins, they  will very likely be as intelligent as each other. Relations like brothers and sisters，parents and children，usually have similar intelligence, and this clearly suggests that intelligence depends on birth.

Imagine that now we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth plays a part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all, are likely to have similar degrees of intelligence.

1.By using the example that two people closer in blood relationship are closer in intelligence that writer wants to prove    _    .

2.A child who lives in rich and varied surroundings turns out higher in intelligence because ________.

3.In the second paragraph “if we take two unrelated people at random from the population．．．” means “if we ____．”

4.The best title for this passage might be __________.