Having a teenager at home can be a real headache. Many teenagers smoke, wear strange hairstyle and even fight. Basically (基本上) , they are often taking risks.
Earlier studies have shown that teenagers are more likely to make irrational decisions than people from any other age group, including children and adults. Is it that teenagers are too young to tell right from wrong? Not really. So what’s the reason?
According to Laurence, a teacher from a US university, the reason is that teenagers care a lot about how their peers (同龄人) view them—that is “peer influence”.
As children enter their teenage years, they spend more time with their friends and classmates, and also they care more about what they think of them. This makes teenagers make decisions without thinking about the costs.
In a test, a group of teenagers were asked to play a video driving game. When they played with their friends watching around them, they took more chances and drove more carelessly because that would increase their possibility of winning. But when they played alone, they drove more safely.
Why do peers have such a big influence on teens’ behavior?
As Laurence sees it, a teenager’s brain is like a car with a good accelerator (油门) but a weak brake (刹车). The “accelerator” is fully developed by teenage years while the “brake” is still not fully developed. When teenagers are watched by their peers, they usually push hard on the accelerator. With their weak brake, it is likely that they are going to end up in an accident. But the good news is that a violent (暴力的) teenager doesn’t necessarily become a violent adult. About two-thirds to three-quarters of violent youth grow out of it. “They get more self-controlled.”
【小题1】What does the underlined word “irrational” in the 2nd paragraph mean?

Many teenagers feel that the most important people in their lives are their friends. They believe that their family members, and in particular, their parents, don’t know them as well as their friends do. In large families, it is quite often for brothers and sisters to fight with each other and then they can only go to their friends for advice.
It is very important for teenagers to have one good friend or a circle of friends Even when they are not with their friends, they usually spend a lot of time talking among them on the phone. This communication is very important in children’s growing up, because friends can discuss something difficult to say to their family members.
However, parents often try to choose their children’s friends for them. Some parents may even stop their children from meeting their good friends. The question of “choice” is an interesting one.
Who chooses your friends?
Do you choose your friends or your friends choose you?
Have you got a good friend your parents don’t like?
Your answers are welcome.
【小题1】Many teenagers think their ________ know them better than their parents do.

It rained for days.Mike couldn’t go out and      with his friends.His parents went to work and had to    the boy at home.They bought some     for him.But he didn’t like to read them. He stood by the window(窗户）and        Outside.

The rain     this morning and Mike was happy.But it was wet(潮湿的）outside.His parents didn’t       him go out and play there.They       the boy to read a book.But when they left he began to play behind the house.       ,his parents came back for lunch. His mother found the boy was very dirty.

   “Oh,dear!”called out the woman.”Look at your      !How dirty they are!When did you see I was so dirty             you?

  “But I didn’t see you when you were young,mom.”said the boy.

1.A． study                   B． talk             C． play                    D． work

2.A． leave               B． teach       C． see                              D． Hear

3.A． pencils        B． paper          C． fruit                      D． books

4.A． look                       B． looked              C． looks                  D． sees

5.A． stopped      B． started               C． wanted                        D． got

6.A． hope                B． leave           C． grow                            D． let

7.A． asked                   B． said                       C． made                           D． found

8.A． At night    B． At six    C． At noon                 D． In the evening

9.A． face                       B． eyes                C． ears                             D． clothes

10.A． for                       B． like                      C． at                                   D． On

先通读短文，然后根据短文内容和所给首字母填入一个合适的词。
John is going to show us a___1____ his home town. He lives in a small house w___2___ a garden and his mother g ____3____vegetables and flowers in the garden. There are lots of tall b____4_____ in his town. There is a park near the c_____5____of town. He likes going into town o____6_____ his bicycle. He sometimes goes s_____7____ in summer when it is warm and s____8_____. There are not m_____9_____ cars and they can not go into the centre of town. He t_____10_____ it is a wonderful place to visit.