ALBANY，New York—Students who rely on working at night to improve their

grades might want to sleep on that strategy: A new survey in the US says those who never study all night have slightly higher grades than those who do.

A survey of 120 students at St.Lawrence University found that students who had never pulled an all­nighter on average had higher grades than those who had. The survey found those who did not study through the night had a grade point average of 3.2 compared to 2.95 for those who did.

The study, by assistant professor of psychology Pamela Thacher, is to be included in the January issue of Behavioral Sleep Medicine.

“It's not a big difference，but it's pretty striking, ” Thacher said, “I am primarily a sleep researcher and I know nobody thinks clearly at 4∶00 in the morning. You think you can do，but you can't.”

Many college students, of course, have inadequate or irregular sleep, for reasons ranging from excessive caffeine to poor time management.

“A lot of students were under the impression that all­nighters were a very useful tool for accomplishing work, and that caffeine intake was very useful in meeting deadlines and stuff like that, ”said Mr Chatani, who had a 3.4 grade point average last term.

Dr Howard Weiss, a physician at St.Peter's Sleep Center in Albany, said the study results made sense.

“Certainly that data is out there showing that short sleep duration absolutely interferes with concentration and performance on objective testing, ”he said.

“Some night owls do get good grades, of course，which may be explained by circadian (昼夜节律的，生理节奏的) rhythms, ”Weiss said, “Some people have different 24­hour body clocks from others, and may do better depending on classes and testing time.”

63.The purpose of the passage is to tell us 　　　　

A. the bad effects of pulling an all­nighter

B. pulling an all­nighter leads to sleep problems

C. Thacher's doubt about all­nighters

D. all­nighters influence students' grades

64. According to Thacher's study，around 4 o'clock in the morning is a time when 　　　　.

A. one can think more clearly

B. one has his/her best memory

C. one can't learn efficiently

D. one's brain falls into a period of deep sleep

65.What can we know from Dr Howard Weiss' words？

A. Thacher's study is not convincing enough.

B. He believes in Thacher's study.

C. Thacher's study makes no sense.

D. Thacher should take exceptions into consideration.

HOLIDAY HOMES IN MALLORCA

　　Holiday houses in Mallorca sailing and fishing port - quiet even in summer season. Beautifully situated houses with sights of sea and mountains, yet near to shops and restaurants. Cars and bicycles for hire. Sailing and sports clubs nearby.

ITALY IN COMFORT

　　Luxury coach（ - carriage） trips of Italy, out of normal holiday season. 21days to visit five Italian cities starting from London 1 st May, 1 st September . The trips are guided by profess or Martin Davis. Head of Italian Studies, London University . See the arts and culture of historic Italy.

KIBBUTZ HOLIDAYS IN ISRAEL（以色列）

　　Working holidays on a kibbutz（ co -operative farm） in Israel. All nationalities welcome for one to three months, if prepared to work morning with kibbutz members. Accommodation （住宿）, food and trips to historic sights all provided free - you pay only for the special low- cost return flight.

TWO WEEKS ON A CARIBBEAN ISLAND

　　Two- week holidays in the Hotel Splendid , on a lovely beach with golden sands and deep- blue sea. Tennis, golf, sailing and all water sports, trips around the island arranged. Near to town of Castries with lively evening entertainment - dancing.

　　1 st November - 31 st March = ￡ 720 per person

　　1 st April - 30th October = ￡ 850 per person

　　Jack and his wife Mary, who have recently retired, want to see places of cultural and historic interest abroad, but Mary hates flying.

　　Peter and Maria, university students, want to travel as far as possible on little money, and would like to get to know a country by working there for three months with other young people.

　　Michael, a young computer programmer, has been working hard and needs a holiday to relax in winter. He would like to go somewhere warmer and sunny, where he can swim in the sea, and he enjoys sports and dancing.

　　Herry and Kate, both teachers, and their two sons, have to take their holiday during the school summer holidays. There must be plenty for the boys to do, although Harry and Kate just want to have beautiful scenery, good food and wine- and peace.

Michael would most probably go to ________ for his holiday.

　　A. Italy　　　　　　　　　　　　 B. Israel

　　C. Mallorca　　　　　　　　　　 D. a Caribbean island

The most suitable place where Peter and Maria can enjoy their holiday would be________

　　A. an Italian city　　　　　　　　　B. a kibbutz in Israel

　　C. a Caribbean island　　　　　　　D. the port in Mallorca

The best holiday for Jack and Mary would be________.

　　A. the 21 - day coach trip of Italy

　　B. the 2 -week stay in the Hotel Splendid

　　C. the 14 -day trip around a Caribbean island

　　D. the working holidays for 1 -3 months on a kibbutz in Israel

Harry and Kate and their sons would like________.

　　A. a holiday working on a kibbutz in Israel

　　B. a holiday visiting cities by coach in Italy

　　C. a holiday house in the fishing port in Mallorca

　　D. a holiday hotel on a lovely beach on a Carribean Island

ALBANY，New York—Students who rely on working at night to improve their
grades might want to sleep on that strategy: A new survey in the US says those who never study all night have slightly higher grades than those who do.
A survey of 120 students at St.Lawrence University found that students who had never pulled an all­nighter on average had higher grades than those who had. The survey found those who did not study through the night had a grade point average of 3.2 compared to 2.95 for those who did.
The study, by assistant professor of psychology Pamela Thacher, is to be included in the January issue of Behavioral Sleep Medicine.
“It's not a big difference，but it's pretty striking, ” Thacher said, “I am primarily a sleep researcher and I know nobody thinks clearly at 4∶00 in the morning. You think you can do，but you can't.”
Many college students, of course, have inadequate or irregular sleep, for reasons ranging from excessive caffeine to poor time management.
“A lot of students were under the impression that all­nighters were a very useful tool for accomplishing work, and that caffeine intake was very useful in meeting deadlines and stuff like that, ”said Mr Chatani, who had a 3.4 grade point average last term.
Dr Howard Weiss, a physician at St.Peter's Sleep Center in Albany, said the study results made sense.
“Certainly that data is out there showing that short sleep duration absolutely interferes with concentration and performance on objective testing, ”he said.
“Some night owls do get good grades, of course，which may be explained by circadian (昼夜节律的，生理节奏的) rhythms, ”Weiss said, “Some people have different 24­hour body clocks from others, and may do better depending on classes and testing time.”
63.The purpose of the passage is to tell us 　　　　
A. the bad effects of pulling an all­nighter
B. pulling an all­nighter leads to sleep problems
C. Thacher's doubt about all­nighters
D. all­nighters influence students' grades
64. According to Thacher's study，around 4 o'clock in the morning is a time when 　　　　.
A. one can think more clearly
B. one has his/her best memory
C. one can't learn efficiently
D. one's brain falls into a period of deep sleep
65.What can we know from Dr Howard Weiss' words？
A. Thacher's study is not convincing enough.
B. He believes in Thacher's study.
C. Thacher's study makes no sense.
D. Thacher should take exceptions into consideration.

       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.

ALBANY，New York—Students who rely on working at night to improve their

grades might want to sleep on that strategy: A new survey in the US says those who never study all night have slightly higher grades than those who do.

A survey of 120 students at St.Lawrence University found that students who had never pulled an all??nighter on average had higher grades than those who had. The survey found those who did not study through the night had a grade point average of 3.2 compared to 2.95 for those who did.

The study, by assistant professor of psychology Pamela Thacher, is to be included in the January issue of Behavioral Sleep Medicine.

“It's not a big difference，but it's pretty striking, ” Thacher said, “I am primarily a sleep researcher and I know nobody thinks clearly at 4∶00 in the morning. You think you can do，but you can't.”

Many college students, of course, have inadequate or irregular sleep, for reasons ranging from excessive caffeine to poor time management.

“A lot of students were under the impression that all??nighters were a very useful tool for accomplishing work, and that caffeine intake was very useful in meeting deadlines and stuff like that, ”said Mr Chatani, who had a 3.4 grade point average last term.

Dr Howard Weiss, a physician at St.Peter's Sleep Center in Albany, said the study results made sense.

“Certainly that data is out there showing that short sleep duration absolutely interferes with concentration and performance on objective testing, ”he said.

“Some night owls do get good grades, of course，which may be explained by circadian (昼夜节律的，生理节奏的) rhythms, ”Weiss said, “Some people have different 24??hour body clocks from others, and may do better depending on classes and testing time.”

The purpose of the passage is to tell us 　　　　

  A. the bad effects of pulling an all??nighter

  B. pulling an all??nighter leads to sleep problems

  C. Thacher's doubt about all??nighters

  D. all??nighters influence students' grades

According to Thacher's study，around 4 o'clock in the morning is a time when 　　　　.

  A. one can think more clearly

  B. one has his/her best memory

  C. one can't learn efficiently

  D. one's brain falls into a period of deep sleep

What can we know from Dr Howard Weiss' words？

  A. Thacher's study is not convincing enough.

  B. He believes in Thacher's study.

  C. Thacher's study makes no sense.

  D. Thacher should take exceptions into consideration.