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？

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？

2.According to Michael Breus，         .

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

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

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

About half American teenagers do not get enough sleep on school nights.They get an average of sixty to ninety minutes less than experts say they need.

One reason for this is biology.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 sixteen?year?old Danny.He is an active teen— except in the morning.“Getting up in the morning is pretty terrible.I’m just very out of it and tired.Through the first and second period I can hardly stay awake,” he said.

Michael Breus is a psychologist.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(消沉) that could have big influence 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.So what can schools do about sleepy students？The psychologist says one thing they can do is to start classes later in the morning.Studies show that students can improve by a full letter grade in their first and second period classes.

Eric Peterson is the head of St.George’s School in the northeastern state of Rhode Island.He wanted to see if a thirty?minute delay(推迟)would make a difference.It did.He says visits to the health center by tired students decreased by half.Late arrivals to the first period fell by a third.And students reported that they were less sleepy during the day.Eric Peterson knows that changing start times is easier at a small school like his.But he is hopeful that other schools will find a way.

1.What’s the best title for the passage?

A．Later classes，fewer sleepy teens

B．Early birds have good food

C．Early to bed and early to rise

D．Fewer classes，more happiness

2.The underlined word“this”in the second paragraph refers to________.

A．teenagers’ staying up

B．teenagers’ getting up late

C．teenagers’ not getting enough sleep

D．teenagers’ not studying seriously

3.Michael Breus thinks that________.

A．teens should get up early

B．teens need enough sleep to be lively

C．depression is common in teens

D．the first period class should be cut off

4.The last paragraph tells us________.

A．Eric Peterson visits the health center every day

B．it’s not easy for Eric Peterson to change start times

C．students in St.George’s School can get up later than before

D．students in St.George’s School aren’t late for school any more

5.What can we infer from the passage?

A．Danny is a lazy boy and always late for school.

B．Teens should go to bed early and get up early, too.

C．The psychologist has no idea how to solve the problem.

D．Enough sleep makes a healthy and active student.

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.

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.

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.

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.

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.

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.

         After finishing my shopping, I headed for the checkout
counter but was blocked in the narrow passage by a young
man that appeared to be about sixteen years old. I wasn’t in a
hurry, so I patiently waited for the boy to realize that I was
there.
After a little while, he waved his hands excitedly, in the air and shouted in a loud voice, "Mommy, I'm here．Mommy, I'm here．" It was obvious now, he was mentally challenged．Suddenly, he turned and saw me standing so close to him．His eyes widened and watched me surprisingly．He turned and saw me standing so close to him. His eyes widened and watched me surprisingly. I stepped back and asked, " Hey, buddy, what’s your name? " " My name is Denny and I'm shopping with my mother," he responded proudly．"Wow," I said, "that's a cool name．I wish my name was Denny, but my name is Hal．" "Hal like Halloween?" he asked．"Yes," I answered．"How old are you, Denny?" "How old am I now．Mommy?" he asked his mother as she came over from the next passage．"You' re fifteen years old, Denny; now be a good boy and let the lady pass by．" I continued to talk to Denny for several more minutes about summer vacation, bicycles and school．I watched his brown eyes dance with excitement．
As we were talking, he suddenly ran toward the toy section．
Denny's mom thanked me for taking the time to talk with her son．She told me that most people wouldn' t even look at him, much less talk to him…I told her that it was my pleasure and then I said, " Denny is a blue rose and if I didn' t stop and smell that rose with my heart, I would miss a blessing from God．"
She looked more puzzled．I told her that there are plenty of red, yellow and pink roses in God's garden, however, blue roses are very rare and should be appreciated for their beauty and distinctiveness （特殊之处）．Denny is such a "blue rose" in God's garden．     
46．The story may happen      ．
A．in a school         B．during the summer vacation
C．in a super market     D．in the toy section
47．The boy's brown eyes dance with excitement because       ．
A．he was the center of someone's attention  
B．Denny is a cool name
C．he is shopping with his mother           
D．he likes summer vacation
48．We can infer from the passage that Danny ______.
A．was mentally challenged       B．is 15 years old 
C．was often very lonely and neglected        D．is a ‘blue rose1’ in God's garden
49．From the passage we can learn that _______.
A．there are plenty of red, yellow and pink roses in God’s garden     
B．blue roses'are very rare and should be appreciated                                    
C．most people wouldn’t even look at Denny
D．every person should be appreciated in our life