Transportation and communication networks bring people together. Yet sometimes people themselves create barriers(障碍) to transportation and communication. In some countries, laws stop people from moving freely from place to place. Over the centuries, many groups of people have been denied the freedom to travel because of their race, religion, or nationality. In the Middle Ages, for example, Jews were often forbidden to move about freely within certain cities. South Africa's government used to require black Africans to carry passes when they travel within the country. Some governments require all citizens to carry identification papers and to report to government officials whenever they move.

   Countries set up customs posts at their borders. Foreign travellers must go through a customs inspection before they are allowed to travel in the country. Usually travellers have to carry special papers such as passports and visas(签证). Some countries even limit the number of visitors to their country each year.  Others allow tourists to visit only certain areas of the country, or they may require that travellers be with an official guide at all times during their stay.

    Many of those barriers to travel also act as barriers to communication.

When two governments disagree with each other on important matters, they usually do not want their citizens to exchange news or ideas freely. Countries often try to keep military or industrial information secret.

     Today, people have the ability to travel, to communicate, and to transport goods more quickly and easily than ever before. Natural barriers that were difficult or dangerous to cross a hundred years ago can now be crossed easily. The barriers that people themselves make are not so easy to overcome. But in spite of all the different kinds of barriers, people continue to enjoy travel and the exchange of goods and ideas.

6. The examples in paragraph 2 are used to tell the readers that _______

     A. people have been allowed to travel freely within the country

     B. people have not been permitted to travel freely for various reasons

     C. travellers have to carry special papers such as　passports and visas

     D. customs posts are necessary at the borders of　the countries

7. Some governments limit the freedom of communication because___

     A.  they intend to keep their national secrets unknown to others

     B.  they think such freedom will lead to wars

     C.  they often disagree with each other on important matters

     D.  they want to show their authority over communication

8. We may learn from the passage that _______

     A. people do not care about the removal of barriers between countries

     B. people can not remove the obstacles made by themselves

     C. man-made barriers are sometimes harder to overcome than natural ones

     D. barriers should be taken for granted as they always exist

9. Which of the following can serve as the best title of the passage?

      A. Barriers Made by People                B. Functions of Communication

      C. Restrictions on Transportation            D. Progress of Human Society

10．Which is NOT mentioned as the possible limits some countries put on foreign visitors?

A. They have to get a visa before they enter the country.

B. Only a limited number of visitors are allowed to enter the country every year.

C. Not every part of the country is open to foreign tourists.

D. They have to report to government officials when they come to a new place.

Suppose you discovered an unusual animal, one not described in any present zoology book. How would you begin to identify a creature that may一or may not—exist? Or suppose you came upon an animal that scientists thought had died thousands of years ago. These are exactly the kinds of puzzling situations that crypto—zoologists deal with every day.

    Crypto comes from the Greek words kryptos, which means hidden, and zoology, the study of animals. Of course, crypto—zoologists must acquire a thorough and complete knowledge of all kinds of animals, both living and extinct, such as dinosaurs. In addition, they must be able to tell the difference between a real discovery and a case of mistaken identity.

    You may have heard of people who claim they’ve seen the Loch Ness Monster or Bigfoot. Most crypto-zoologists doubt that proof of either Nessie or Bigfoot will ever be found. But they have many discoveries of 1ess impressive creatures, like the pseudoryx, to investigate（调查）.

The pseudoryx, from the Vietnamese rain forest, looks like a goat, but it is really more closely related to the ox. The evidence for the pseudoryx was pieced together from the villagers’ collection of bones, and hides. Even though the researchers could not find an actual pseudoryx, a talented Vietnamese taxidermist was able to reconstruct a model from the parts the researchers brought to him. Scientists also analyzed the genetic material from a pseudoryx’s bones. Their analysis confirmed that the pseudoryx was certainly a unique new species, unlike any that had been identified before.

      Other crypto-zoologists are presently working to prove the existence of a small ape called the orang-pen-dek on the island of Sumatra. Still others are looking into sightings of the moa, a flightless bird which was thought to be extinct for hundreds of years.

      New types of animals are continuing to be discovered. The crypto-zoologist is constantly analyzing the facts and trying to solve the mysteries. For every mystery that is solved, a new one is likely to appear.

1．From the second paragraph, we know that          .

      A．crypto-zoology is a science coming from Greece

      B．doing research in crypto-zoology is a demanding task

      C．crypto-zoologists try to determine whether animals really exist

      D．crypto-zoologists are skillful at distinguishing between theory and assumption

2．Which of the following is true about the pseudoryx?

      A．An artificial copy was made from the parts collected.

      B．Evidence from the villagers helped to find a real pseudoryx.

      C．The genetic material is compared with that of a goat and an ox.

      D．It’s doubtful whether pseudoryx is different from the existing animals.

3．What is the best title of the passage?

    A．Uncovered truth in animals

    B．Looking for unknown animals

    C．Crypto-zoology--a new field of science

    D．Crypto—zoologists--the detectives in science

4．The examples of animals in the passage are used to           .

       A．appeal readers to solve mysteries

       B．show how crypto—zoologists work

       C．inform people that many animals are in great danger

       D．show the importance of preserving the balance of nature

　　Transportation and communication networks bring people together. Yet sometimes people themselves create barriers（障碍）to transportation and communication. In some countries, laws stop people from moving freely from place to place. Over the centuries, many groups of people have been denied the freedom to travel because of their race, religion, or nationality. In the Middle Ages, for example, Jews were often forbidden to move about freely within certain cities. South Africa's government used to require black Africans to carry passes when they travel within the country. Some governments require all citizens to carry identifications papers and to report to government officials whenever they move.

　　Countries set up customs posts at their borders. Foreign travellers must go through a customs inspection before they are allowed to travel in the country. Usually travellers have to carry special papers such as passports and visas（签证）. Some countries even limit the number of visitors to their country each year. Others allow tourists to visit only certain areas of the country, or they may require that travellers be with an official guide at all times during their stay. Many of those barries to travel also act as barriers to communication. When two governments disagree with each other on important matters, they usually do not want their citizens to exchange news or any ideas freely. Countries often try to keep military or industrial information secret. Today, people have the ability to travel, to communicate, and to transport goods more quickly and easily than ever before. Natural barriers that were difficult or dangerous to cross a hundred years ago can now be crossed easily. The barriers that people themselves make are not so easy to overcome. But in spite of all the different kinds of barriers, people continue to enjoy travel and the exchange of goods and ideas.

(1) The examples in Paragraph 1 are used to tell the readers that ________.

[　　]

A．people have been allowed to travel freely within the country

B．people have not been permitted to travel freely for various reasons

C．travellers have to carry special papers such as passports and visas

D．customs posts are necessary at the borders of the countries

(2) Some governments limit the freedom of communication because ________.

[　　]

A．they intend to keep their national secrets unknown to others

B．they think such freedom will lead to wars

C．they often disagree with each other on important matters

D．they want to show their authority over communication

(3) We may learn from the passage that ________.

[　　]

A．people do not care about the removal of barriers between countries

B．people cannot remove the obstacles made by themselves

C．man-made barriers are sometimes harder to overcome than natural ones

D．barriers should be taken for granted as they always exist

(4) Which of the following can serve as the best title of the passage?

[　　]

A．Barriers Made by People

B．Functions of Communication

C．Restrictions on Transportation

D．Progress of Human Society

　　Transportation and communication networks bring people together. Yet sometimes people themselves create barriers(障碍) to transportation and communication.

　　In some countries, laws stop people from moving freely from place to place. Over the centuries, many groups of people have been denied the freedom to travel because of their race, religion, or nationality. In the Middle Ages, for example, Jews were often forbidden to move about freely within certain cities. South Africa's government used to require black Africans to carry passes when they travel within the country. Some governments require all citizens to carry identification papers and to report to government officials when ever they move.

　　Countries set up customs posts at their borders. Foreign travelers must go through a customs inspection before they are allowed to travel in the country. Usually travelers have to carry special papers such as passports and visa. Some countries even limit the number of visitors to their country each year. Others allow tourists to visit only certain areas of the country, or they may require that travelers be with an official guide at all times during their stay.

　　Many of those barriers to travel also act as barriers to communication. When two governments disagree with each other on important matters, they usually do not want their citizens to exchange news of ideas freely. Countries often try to keep military or industrial information secret.

　　Today, people have the ability to travel, to communicate, and to transport goods more quickly and easily than ever before. Natural barriers that were difficult or dangerous to cross a hundred years ago can now be crossed easily. The barriers that people themselves make are not so easy to overcome. But in spite of all the different kinds of barriers, people continue to enjoy the travel and the exchange of goods and ideas.

　53.The examples in Paragraph 2 are used to tell the readers that _____.

　　A. people have been allowed to travel freely within the country.

　　B. People have not been permitted to travel freely for various reasons.

　　C. Travelers have to carry special papers such as passports and visas.

　　D. Customs posts are necessary at the borders of the countries.

　　54.Some governments limit the freedom of communication because _____.

　　A. they intend to keep their national secrets unknown to others.

　　B. they think such freedom will lead to wars.

　　C. they often disagree with each other on important matters.

　　D. they want to show their authority over communication.

　　55.We may learn from the passage that _____.

　　A. people do not care about the removal of barriers between countries.

　　B. people can not remove the obstacles made by themselves.

　　C. man-made barriers are sometimes harder to overcome than natural ones.

　　D. barriers should be taken for granted as they always exist.

　56.Which of the following can serve as the best title of the passage?

　　A. Barriers Made by People　　　　　　　 B. Functions of Communication

　　C. Restrictions on Transportation　　　　D. Progress of Human Society