A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. And it may not be that their parents have failed to enforce(确保) bedtime. Instead, it may be that biologically(生物学上)these sleepyhead(贪睡者)students aren’t used to the early hour.

　　“Maybe these kids are being asked to rise at the wrong time for their bodies,” says Mary Carskadon, a professor looking at problem of adolescent (青春期的)sleep at Brown’s School of Medicine.

　　Carskadon is trying to understand more about the effects of early school time in adolescents. And, at a more basic level, she and her team are trying to learn more about how the biological changes of adolescence affect sleep needs and patterns(方式).

　　Carskadon says her work suggests that adolescents may need more sleep than they did at childhood, no less, as commonly thought.

　　Sleep patterns change during adolescence, as any parent of an adolescent can prove. Most adolescents prefer to stay up later at night and sleep later in the morning. But it’s not just a matter of choice---their bodies are going through a change of sleep patterns.

　　All of this makes the transfer(迁移)from middle school to high school---which may start one hour earlier in the morning----all the more difficult, Carskadon says. With their increased need for sleep and their biological clocks set on the “sleep late, rise late” pattern, adolescents are up against difficulties when they try to be up by 5 or 6 a.m. for a 7:30 a.m. first bell. A short sleep on a desktop may be their body’s way of saying. “I need a timeout.”

1.Carskadon suggests that high schools should not start classes so early in the morning because _______.

A．it is really tough for parents to enforce bedtime

B．it is biologically difficult for students to rise early

C．students work so late at night that they can’t get up early

D．students are so lazy that they don’t like to go to school early

2.The underlined phrase nod off most probably means _______.

A．turn around       B．agree with others   C．fall asleep         D．refuse to work

3.What might be a reason for the hard transfer from middle school to high school?

A．Adolescents depend more on their parents.

B．Adolescents have to choose their sleep patterns.

C．Adolescents sleep better than they did at childhood.

D．Adolescents need more sleep than they used to.

4.What is the test mainly about?

A．Adolescent health care.

B．Problems in adolescent learning.

C．Adolescent sleep difficulties.

D．Changes in adolescent sleep needs and patterns.

 先阅读短文，然后用下面方框中所给的单词或短语填空，使全文在逻辑上正确。（提示：选项中有一个是多余的。）

    go　back　/　mad　/　need　/　mind　/　hurry　up　/　polite

    We　asked　some　people　what　annoyed　them.　Here’s　what　they　said:

    I　don’t　like　waiting　in　line　when　a　shop　assistant　has　a　long　telephone　conversation.　When　that　happens,　I　usualy　say,　“Would　you　1.　helping　me?”And　I　don’t　like　it　when　shop　assistants　folow　me　around.　Then　I　say,　“Could　you　please　no　folow　me　around?　I’l　ask　you　if　I　2.　some　help.”Usualy　the　shop　assistants　say　they　are　sorry,　but　sometimes　they　get　3..　If　that　happens,　I　won’t　4.　to　that　store　again.

    I　get　annoyed　when　someone　talks　to　me　while　I’m　reading.　This　happens　to　me　al　the　time　in　the　school　library.　When　it　happens,　I　usualy　talk　to　the　　person　because　I　want　to　be　5..　But　because　I’m　polite,　people　don’t　know　I’m　annoyed.　So　they　do　the　same　thing　again.　Perhaps　in　the　future　I　should　try　not　to　be　so　annoyed.

完型填空。

You asked about places to go and things to do in our town. The Downtown Mall is always 1 .

It’s a　2  　place in the oldest part of town. There are some good stores and restaurants there. 3　, Trendy Clothing Store is in Downtown Mall. It’s a fun place to shop, and it has the　4　quality clothes. The shop assistants(售货员) are friendly 5　people. My favorite 6　in town is Nick’s Restaurant. It is close to my house. It’s cheap and the hamburgers there are great. I like Dragon City Restaurant, 　7　. You can eat wonderful noodles there and the beef noodles are the most delicious! You must try the dumplings there, too. But it’s more expensive than Nick’s. The Big Cinema is the best cinema in town. It has the biggest screen and the most 8 seats. The Del Ray Complex is also a good place to see movies. It doesn’t have the 9  movies, but the tickets are the cheapest.

Anyway, there are lots of things to do and to see here. Come for a　10　soon!

1.                A．ugly　         B．fun　          C．dull  D．boring

2.                A．fishing         B．skating         C．reading   D．shopping

3.                A．So that         B．For example     C．Such as　 D．In fact

4.                A．better          B．best　          C．worse    D．worst

5.                A．of　           B．for　           C．to　 D．at

6.                A．school　        B．restaurant　     C．hospital　 D．park

7.                A．too　          B．also　          C．either　　    D．neither

8.                A．dangerous      B．comfortable     C．important　   D．boring

9.                A．older          B．newer          C．newest　 D．oldest

10.               A．visit　         B．see            C．walk　    D．dinner

 先阅读短文，然后用下面方框中所给的单词或短语填空，使全文在逻辑上正确。（提示：选项中有一个是多余的。）
go　back　/　mad　/　need　/　mind　/　hurry　up　/　polite
We　asked　some　people　what　annoyed　them.　Here’s　what　they　said:
I　don’t　like　waiting　in　line　when　a　shop　assistant　has　a　long　telephone　conversation.　When　that　happens,　I　usualy　say,　“Would　you　【小题1】　helping　me?”And　I　don’t　like　it　when　shop　assistants　folow　me　around.　Then　I　say,　“Could　you　please　no　folow　me　around?　I’l　ask　you　if　I　【小题2】　some　help.”Usualy　the　shop　assistants　say　they　are　sorry,　but　sometimes　they　get　【小题3】.　If　that　happens,　I　won’t　【小题4】　to　that　store　again.
I　get　annoyed　when　someone　talks　to　me　while　I’m　reading.　This　happens　to　me　al　the　time　in　the　school　library.　When　it　happens,　I　usualy　talk　to　the　　person　because　I　want　to　be　【小题5】.　But　because　I’m　polite,　people　don’t　know　I’m　annoyed.　So　they　do　the　same　thing　again.　Perhaps　in　the　future　I　should　try　not　to　be　so　annoyed.

完型填空。
You asked about places to go and things to do in our town. The Downtown Mall is always 1 .
It’s a　2  　place in the oldest part of town. There are some good stores and restaurants there. 3　, Trendy Clothing Store is in Downtown Mall. It’s a fun place to shop, and it has the　4　quality clothes. The shop assistants(售货员) are friendly 5　people. My favorite 6　in town is Nick’s Restaurant. It is close to my house. It’s cheap and the hamburgers there are great. I like Dragon City Restaurant, 　7　. You can eat wonderful noodles there and the beef noodles are the most delicious! You must try the dumplings there, too. But it’s more expensive than Nick’s. The Big Cinema is the best cinema in town. It has the biggest screen and the most 8 seats. The Del Ray Complex is also a good place to see movies. It doesn’t have the 9  movies, but the tickets are the cheapest.
Anyway, there are lots of things to do and to see here. Come for a　10　soon!