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.

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       The worst US economic depression in the recent 70 years is forcing senior citizens out of retirement, leaving them fighting for jobs in a weak labor market or risking homelessness.

       The study by Experience Works, released on Tuesday, showed 46 percent of the 2,000 low income people over 55 years who participated needed to find work to keep their homes. Nearly half of them had been searching for work for more than a year.

      “These people are at the age where they understandably thought their job-searching years were behind them,” said Cynthia Metzler, president and CEO of Experience Works.

       “Bur here they are, many in their 60s, 70s and beyond, desperate to find work so they can keep a roof over their heads and food on the table.”

       According to the study, many of the participants had no intention of working past their 60 th birthday, but _______ after being laid off or following the death of the partner. Over a third of the participants had retired.

       Ninety percent of the respondents 76 years and older planned to continue working for the next five years.

       Huge medical bills due to a persona illness or that of a partner were also reasons for coming out of retirement, the survey found. The longest and deepest economic decline since the 1930s is making finding a job for the low-income elderly workers a difficult challenge.

       The Experience Works study found that 46 percent of the elderly jobseekers were sometimes forced to choose between paying rent and buying food or medication. Almost three-quarters believed their age made it harder to compete for jobs with younger workers.

       “This study underscores calls for the need to create policies that remove barriers to employment for elder workers and provide additional programs and services specifically aimed at helping elder people re-enter the work force or remain working,” said Metzler.

81. What’s the main idea of the passage? (no more than 12 words)

_____________________________________________________________________________________

82. Fill in the blank in Paragraph 5 with proper words. (no more than 5 words)

_____________________________________________________________________________________

83. Complete the following statement with proper words. (no more than 3 words)

   The people over 55 years are hard to avoid the feeling that they have passed the age of

_____________________________________________________________________________________

84. What might be the solution to the problem according to the study? (no more than 15 words)

_____________________________________________________________________________________

85. What does the word “them” (line2, paragraph 2) probably refer to? (no more than 7 words)

_____________________________________________________________________________________

Don’t be afraid of challenge; there is _____like it to bring out the best in a person

1. A.
   somebody
2. B.
   nobody
3. C.
   everything
4. D.
   nothing

Some medicine，when wrongly          ，can kill a person