D

Every profession，every art，and every science has its technical vocabulary. Its function is partly to name things or processes which can not be described in ordinary English．Such special terms are necessary in technical discussion of any kind．Being universally understood by the specialists of the particular science or art，these terms have the exactness of a mathematical formula（公式）．Besides，they save time, for it is much more convenient to name a process than to describe it． 

Different occupations，however，differ widely in the character of their special vocabularies．In trades and handicrafts，and other professions，like farming and fishery，that have occupied great numbers of men in the past，the technical vocabulary is very old．It consists largely of native words, or borrowed words that have worked themselves into the very fibre of our language．As a consequence, though highly technical in many particulars，these vocabularies are more familiar in sound；and more generally understood，than most other technicalities．

    Yet every profession still possesses a large body of technical terms that remain extremely unfamiliar, even to educated speech．And the amount has been much increased in the last fifty years．New terms are invented with the greatest freedom，and abandoned unconcernedly when they have served their turn．Most of the new inventions of words and expressions are restricted to special discussions, and seldom get into general conversation．

    Yet no profession is，nowadays，as all professions once were，a closed association．Specialists in different fields share ideas and associate freely with each other. Furthermore, what is called “popular science” familiarizes everybody with modern views and recent discoveries. Any important experiment, though made in a remote lab, is at once reported in the newspaper, and everybody is soon talking about it—as in the case of the Roentgen rays and wordless telegraph. Thus our common speech is always taking up new technical terms and making them commonplace.

67．Technical terms are created so            .

       A．specialists may communicate more easily

       B．people may enjoy varieties of occupations

       C．people may save time in everyday discussions

       D．specialists may well accept mathematical formulas

68．The writer lists wireless telegraph as an example to show special words      .

       A．should represent popular science

       B．may become part of common speech

       C．should be restricted to scientific fields

       D．may be considered great inventions of man

69．What can we infer from the passage?

       A．Nonteehnical words may be replaced.

       B．Media helps to popularize special terms.

       C．Various professionals exchange their terms.

       D．Educated people know most technical terms.

Sugar is so much a part of our modern life that we only think about it when, for some reason, we cannot obtain it. It has been known to man for at least 3,000 years, but has come into common use only in modern times. Until quite recently it was considered as a medicine and as a luxury for the rich only.

   Sugar is, then, very important to our civilization. But what exactly is it? Of course, most of us recognize sugar immediately as the sweet material which we put in coffee or cakes. This common form of sugar is from two plants: the sugar cane (a type of grass which grows to a height of 20 feet) and the sugar beet (which grows underground). But in fact there are many types of sugar, and the chemist recognizes hundreds of different varieties, each coming from a different source.

   About 90% of the sugar is produced as food. Only 10% is used in industry for purposes other than food production. Yet sugar has great possibilities for use as the basis of chemicals. It can even be used for making plastics. In the future these potential uses will certainly be developed more than in the past. There are many reasons why we should increase the production of sugar. Most important is that it is one of the most highly concentrated energy foods. Thus sugar cane and beet produce an average of 7,000,000 calories per acre. In this way they have the advantages over potatoes which give only 4,000,000, while the figure for wheat and beans is 2,000,000 each. So three acres of land growing wheat, beans and potatoes give only slightly more energy than one acre of sugar.

1．The heading of Paragraph One may be ______.

       A．What Sugar Is                                     B．Sugar Through Ages      

C．The Advantages of Sugar                      D．Present And Future Uses of Sugar

2．The third paragraph emphasizes (強(qiáng)調(diào)) ______.

       A．a(chǎn)bout 90% of sugar is used as food       B．only 10% is used in industry

       C．sugar used for making plastics              D．future uses of sugar

3．Sugar has been used widely ______.

   A．for 3,000 years                                     B．in modern times  

       C．until quite recently                               D．for 300 years

4．The main reason why we should increase the production of sugar is that ______.

       A．sugar tastes sweet                                                               B．we can save plenty of land 

C．we can take in more energy                  D．it provides much energy

    Everyone should visit a lighthouse at least once .

The most important reason for such a visit is to realize how our ancestors (祖先) battled nature with the basic tools they had . They had only basic ways of creating light , and yet they found a way of using this simple technology in isolated (孤零零的) places to save ships from hitting rocks .

Secondly , visiting lighthouses will help us to understand the lives of lighthouse keepers .By their very nature , lighthouses were built on some rocks or cliffs . Thus , the lighthouse keepers often lived lonely lives . To walk around their small home , and imagine the angry storm outside beating against the walls , is to take a step towards understanding the lives they had.

The reasons for a visit to a lighthouse are not all so backward-looking in time . It is true that lighthouses were built in out-of-the way places . But on a pleasant sunny summer day. This very isolation has a untural beauty that many people will love to experience . Therefore , with the gentle waves touching all round the lighthouse . the visitor is likely to think it is a world preferable to the busy and noisy modern life.

Another reason for considering a visit is that the lighthouses themselves can be very attractive buildings . Mankind could often not be content just to put up a basic structure . but felt the need . even in such an isolated place , to build with an artistic touch . The result is a view for tired eyes to enjoy .

Finally , lighthouses have a romantic attraction , summed up by the image of the oil-skin coated keeper climbing his winding stairs to take care of the light to warn ships and save lives .

67．What is the reason to look back into the past of a lighthouse ?

       A．To escape from the busy and noisy city .

       B．To look for the tools used by our ancestors .

       C．To experience the natural beauty of a lighthouse .

       D．To learn about the living condition of lighthouse keepers .

68．The underlined phrase “out-of-the-way” in Paragraph of means         .

       A．far-away .           B．dangerous            C．a(chǎn)ncient               D．secret

69．Lighthouses were often built with an artistic touch         .

       A．to attract visitors                                                                B．to guide passing ships

       C．to give a pleasant sight                         D．to remember lighthouse keepers

70．How many reasons are mentioned for a visit to a lighthouse ?

       A．Three .     B．Four .       C．Five .       D．Six .

Everyone should visit a lighthouse at least once.
The most important reason for such a visit is to realize how our ancestors (祖先) battled nature with the basic tools they had . They had only basic ways of creating light , and yet they found a way of using this simple technology in isolated (孤零零的) places to save ships from hitting rocks .
Secondly , visiting lighthouses will help us to understand the lives of lighthouse keepers .By their very nature , lighthouses were built on some rocks or cliffs . Thus , the lighthouse keepers often lived lonely lives . To walk around their small home , and imagine the angry storm outside beating against the walls , is to take a step towards understanding the lives they had.
The reasons for a visit to a lighthouse are not all so backward-looking in time . It is true that lighthouses were built in out-of-the –way places . But on a pleasant sunny summer day. This very isolation has a natural beauty that many people will love to experience . Therefore, with the gentle waves touching all round the lighthouse . the visitor is likely to think it is a world preferable to the busy and noisy modern life.
Another reason for considering a visit is that the lighthouses themselves can be very attractive buildings . Mankind could often not be content just to put up a basic structure . but felt the need . even in such an isolated place , to build with an artistic touch . The result is a view for tired eyes to enjoy .
Finally , lighthouses have a romantic attraction , summed up by the image of the oil-skin coated keeper climbing his winding stairs to take care of the light to warn ships and save lives .
【小題1】What is the reason to look back into the past of a lighthouse ?

A．To escape from the busy and noisy city .

B．To look for the tools used by our ancestors .

C．To experience the natural beauty of a lighthouse .

D．To learn about the living condition of lighthouse keepers .

【小題2】The underlined phrase “out-of-the-way” in Paragraph of means        .

A．far-away .

B．dangerous

C．a(chǎn)ncient

D．secret

【小題3】Lighthouses were often built with an artistic touch       .

A．to attract visitors	B．to guide passing ships
C．to give a pleasant sight	D．to remember lighthouse keepers

【小題4】How many reasons are mentioned for a visit to a lighthouse ?

A．Three .

B．Four .

C．Five .

D．Six .

Everyone should visit a lighthouse at least once.

The most important reason for such a visit is to realize how our ancestors (祖先) battled nature with the basic tools they had . They had only basic ways of creating light , and yet they found a way of using this simple technology in isolated (孤零零的) places to save ships from hitting rocks .

Secondly , visiting lighthouses will help us to understand the lives of lighthouse keepers .By their very nature , lighthouses were built on some rocks or cliffs . Thus , the lighthouse keepers often lived lonely lives . To walk around their small home , and imagine the angry storm outside beating against the walls , is to take a step towards understanding the lives they had.

The reasons for a visit to a lighthouse are not all so backward-looking in time . It is true that lighthouses were built in out-of-the –way places . But on a pleasant sunny summer day. This very isolation has a natural beauty that many people will love to experience . Therefore, with the gentle waves touching all round the lighthouse . the visitor is likely to think it is a world preferable to the busy and noisy modern life.

Another reason for considering a visit is that the lighthouses themselves can be very attractive buildings . Mankind could often not be content just to put up a basic structure . but felt the need . even in such an isolated place , to build with an artistic touch . The result is a view for tired eyes to enjoy .

Finally , lighthouses have a romantic attraction , summed up by the image of the oil-skin coated keeper climbing his winding stairs to take care of the light to warn ships and save lives .

1.What is the reason to look back into the past of a lighthouse ?

A．To escape from the busy and noisy city .

B．To look for the tools used by our ancestors .

C．To experience the natural beauty of a lighthouse .

D．To learn about the living condition of lighthouse keepers .

2.The underlined phrase “out-of-the-way” in Paragraph of means        .

A．far-away .

B．dangerous

C．a(chǎn)ncient

D．secret

3.Lighthouses were often built with an artistic touch       .

A．to attract visitors	B．to guide passing ships
C．to give a pleasant sight	D．to remember lighthouse keepers

4.How many reasons are mentioned for a visit to a lighthouse ?

A．Three .

B．Four .

C．Five .

D．Six .