Surveys of American teenagers find that about half of them do not get enough sleep on school nights. They get an average of 60 to 90 minutes less than experts say they need.
Experts say teens are biologically programmed to go to sleep later and wake up later than other age groups. Yet many schools start classes as early as seven in the morning.
As a result，many students go to class feeling like Danny，16 years old. He plays two sports，lacrosse and football. He is an active teen—except in the morning. DANNY：“Getting up in the morning is pretty terrible. I’m just very out of it and tired. And through first and second period I can hardly stay awake.”
Michael Breus，a clinical psychologist with a specialty in sleep disorders says：“These aren’t a bunch of lazy kids—although，you know，teenagers can of course be lazy. These are children whose biological rhythms，more times than not，are off.”Teens，he says，need to sleep eight to nine hours or even nine to ten hours a night. He says sleepy teens can experience a form of depression that could have big effects on their general well-being. It can affect not just their ability in the classroom but also on the sports field and on the road because any tired driver is dangerous，especially a teenager with a lack of experience.
So what can schools do about sleepy students？The psychologist says one thing they can do is start classes later in the morning.
Eric Peterson，head of St.George’s School in the northeastern state of Rhode Island，says，“In the end，schools ought to do what’s the right thing for their students，first and foremost.”And he wanted to see if a 30-minute delay would make a difference. It did.
【小题1】According to the passage，which of the following is the chief cause of sleepy teenagers？

A．Persona haibits.	B．Early school hours.
C．Sports activities.	D．Too much home work.

【小题2】According to Michael Breus，         .

A．Teenagers are too lazy to get up early for school.

B．Teenagers should change their biological rhythms.

C．Lacking sleep can cause serious problems.

D．Sleepy teenagers shouldn’t drive to school.

【小题3】What is Eric Peterson’s opinion on the issue？

A．Schools should try their best to help students.

B．Students should adjust to their school’s schedule.

C．Changing school schedule is their last choice.

D．Something has to change at the end of a school day.

【小题4】What does the underlined word“It”in the last sentence might refer to？

A．St.George School.	B．Rhode Island State.
C．Students in St.George School.	D．30-minute delay of school day.

【小题5】What can you infer might follow the passage immediately？

A．Some positive changes in St.George’s school.

B．Some complaints from teachers and parents.

C．Some tips on how to help students foremost.

D．Some unexpected outcome of the delay.

Situated in the Northeast region of Vietnam, Halong Bay is made up of 1,969 islands of various sizes, 989 of which have been given names. The concentrated zone of stone islands is famous for its spectacular scenery of caves, and forms the central zone of Halong Bay.

Seen from above, Halong Bay looks like a geographic work of art. While exploring the bay, you feel lost in a wonderful world. There is Man’s Head Island, which resembles a man standing and looking towards the mainland. Dragon Island looks like a dragon winding above the blue water. La Vong Island resembles an old man fishing. There are also the islands of the Sail, the Pair of Roosters, and the Incense Burner, which are all astonishingly like their names.

It has been proven by scientists that Halong Bay was one of the first places of human existence. It is also a region of highly-concentrated biological diversity with many ecosystems of coral reefs, and tropical forests, which are home to thousands of species of animals and rare plants.

The beach located along the coast of Halong Bay has a year-round average temperature of 20℃. Among the palm trees are large hotels. Visitors are seen on white sand and under the green trees are small family-run restaurants. After swimming, tourists can enjoy cold drinks. No wonder the 18h meeting of the Committee of the World Heritages of UNESCO officially recognized Halong Bay as a natural heritage site of worldwide importance.

1.What forms the central zone of Halong Bay?

    A. 1,969 islands of various sizes.          

B. The concentrated zone of stone islands.

    C. 989 islands that have been given names.  

D. Man’s Head Island.

2.We can infer that the names of most islands ______.

   A. have something to do with theirs shapes.

   B. were given by the visitors in Halong Bay  

   C. were given by the geologists of Vietnam

   D. are related to their history

3. The author writes the passage mainly to_______.

   A. tell some information about the history of Vietnam

   B. introduce the average temperature in Vietnam

   C. introduce the beach of Vietnam

   D. tell readers something about Halong Bay

 

Surveys of American teenagers find that about half of them do not get enough sleep on school nights. They get an average of 60 to 90 minutes less than experts say they need.

Experts say teens are biologically programmed to go to sleep later and wake up later than other age groups. Yet many schools start classes as early as seven in the morning.

As a result，many students go to class feeling like Danny，16 years old. He plays two sports，lacrosse and football. He is an active teen—except in the morning. DANNY：“Getting up in the morning is pretty terrible. I’m just very out of it and tired. And through first and second period I can hardly stay awake.”

Michael Breus，a clinical psychologist with a specialty in sleep disorders says：“These aren’t a bunch of lazy kids—although，you know，teenagers can of course be lazy. These are children whose biological rhythms，more times than not，are off.”Teens，he says，need to sleep eight to nine hours or even nine to ten hours a night. He says sleepy teens can experience a form of depression that could have big effects on their general well-being. It can affect not just their ability in the classroom but also on the sports field and on the road because any tired driver is dangerous，especially a teenager with a lack of experience.

So what can schools do about sleepy students？The psychologist says one thing they can do is start classes later in the morning.

Eric Peterson，head of St.George’s School in the northeastern state of Rhode Island，says，“In the end，schools ought to do what’s the right thing for their students，first and foremost.”And he wanted to see if a 30-minute delay would make a difference. It did.

1.According to the passage，which of the following is the chief cause of sleepy teenagers？

A．Persona haibits.	B．Early school hours.
C．Sports activities.	D．Too much home work.

2.According to Michael Breus，         .

A．Teenagers are too lazy to get up early for school.

B．Teenagers should change their biological rhythms.

C．Lacking sleep can cause serious problems.

D．Sleepy teenagers shouldn’t drive to school.

3.What is Eric Peterson’s opinion on the issue？

A．Schools should try their best to help students.

B．Students should adjust to their school’s schedule.

C．Changing school schedule is their last choice.

D．Something has to change at the end of a school day.

4.What does the underlined word“It”in the last sentence might refer to？

A．St.George School.	B．Rhode Island State.
C．Students in St.George School.	D．30-minute delay of school day.

5.What can you infer might follow the passage immediately？

A．Some positive changes in St.George’s school.

B．Some complaints from teachers and parents.

C．Some tips on how to help students foremost.

D．Some unexpected outcome of the delay.

 

Situated in the Northeast region of Vietnam, Halong Bay is made up of 1,969 islands of various sizes, 989 of which have been given names. The concentrated zone of stone islands is famous for its spectacular scenery of caves, and forms the central zone of Halong Bay.
Seen from above, Halong Bay looks like a geographic work of art. While exploring the bay, you feel lost in a wonderful world. There is Man’s Head Island, which resembles a man standing and looking towards the mainland. Dragon Island looks like a dragon winding above the blue water. La Vong Island resembles an old man fishing. There are also the islands of the Sail, the Pair of Roosters, and the Incense Burner, which are all astonishingly like their names.
It has been proven by scientists that Halong Bay was one of the first places of human existence. It is also a region of highly-concentrated biological diversity with many ecosystems of coral reefs, and tropical forests, which are home to thousands of species of animals and rare plants.
The beach located along the coast of Halong Bay has a year-round average temperature of 20℃. Among the palm trees are large hotels. Visitors are seen on white sand and under the green trees are small family-run restaurants. After swimming, tourists can enjoy cold drinks. No wonder the 18h meeting of the Committee of the World Heritages of UNESCO officially recognized Halong Bay as a natural heritage site of worldwide importance.
【小题1】What forms the central zone of Halong Bay?

A．1,969 islands of various sizes.

B．The concentrated zone of stone islands.

C．989 islands that have been given names.

D．Man’s Head Island.

【小题2】We can infer that the names of most islands ______.

A．have something to do with theirs shapes.

B．were given by the visitors in Halong Bay

C．were given by the geologists of Vietnam

D．are related to their history

【小题3】 The author writes the passage mainly to_______.

A．tell some information about the history of Vietnam

B．introduce the average temperature in Vietnam

C．introduce the beach of Vietnam

D．tell readers something about Halong Bay