1 . The expression, "everybody's doing it," is very much at the center of the concept of peer pressure. It is a social influence applied on an individual in order to get that person to act or believe in a(n) ___ way as a larger group. This influence can be negative or positive, and can exist in both large and small groups.

People are social creatures by nature, and so it is hardly ___that some part of their self-respect comes from the approval of others. This instinct explains why the approval of peers, and the fear of ____, is such a powerful force in many people's lives. This instinct drives people to dress one way at home and another way at work, or to answer a simple “fine" when a stranger asks "how are you?" even if it is not necessarily true. There is a(n) _____aspect to this: it helps society to function efficiently, and encourages a general level of self-discipline that ___day-to-day interaction between people.

For certain individuals, seeking social acceptance is so important that it becomes a(n) ___: in order to satisfy the desire, they may go so far as to ___their sense of right and wrong. Teens and young adults may feel forced to use drugs, or join gangs that ____criminal behavior. Mature adults may sometimes feel ___ to cover up illegal activity at the company where they work, or end up in debt because they are unable to hold back the desire to buy a house or car that they can't afford in an effort to ___ the peers.

However, peer pressure is not always negative. A student whose friends are good at ___may be urged to work harder and get good grades. Players on a sports team may feel driven to play harder in order to help the team win. This type of ___can also get a friend off drugs, or to help an adult take up a good habit or drop a bad one.

Although peer pressure is sometimes quite obvious, it can also be so ___that a person may not even notice that it is affecting his or her behavior. For this reason, when making important decisions, simply going with a(n) ___is risky. Instead, people should seriously consider why they feel drawn to taking a particular action, and whether the real ____ is simply that everyone else is doing the same thing.

1.

A．traditional

B．similar

C．peculiar

D．opposite

2.

A．understandable

B．believable

C．acceptable

D．surprising

3.

A．disapproval

B．failure

C．absence

D．independence

4.

A．uncertain

B．practical

C．impossible

D．vague

5.

A．promotes

B．prevents

C．simplifies

D．increases

6.

A．challenge

B．inspiration

C．promise

D．addiction

7.

A．recognize

B．abandon

C．decrease

D．define

8.

A．avoid

B．encourage

C．decline

D．punish

9.

A．pressured

B．respected

C．delighted

D．regretted

10.

A．catch sight of

B．stay away from

C．make fun of

D．keep up with

11.

A．competitions

B．interaction

C．academics

D．adaptation

12.

A．knowledge

B．interest

C．assistance

D．influence

13.

A．abstract

B．ridiculous

C．subtle

D．reasonable

14.

A．consciousness

B．motivation

C．instinct

D．encouragement

15.

A．motivation

B．danger

C．support

D．achievement

2 . Don't get mad the next time you catch your teenager texting when he promised to be studying. He simply may not be able to resist. A University of lowa(UI) study found teenagers are far more sensitive than adults to the immediate effect or reward of their behaviors. The findings may help explain why the initial rush of texting may be more attractive for adolescents than the long-term pay off of studying.

"For the teenager, 'the rewards are attractive." says Professor Jatin   Vaidya，an author of the study. "They draw adolescent. Sometimes, the rewards are a kind of motivation for them. Even when a behavior is   no   longer in a teenager's best interest to continue, they will, because the effect of   the reward is still there and lasts much longer in adolescents than in adults ."

For parents,that means limiting distraction (分心的事情）so teenagers can make better choices. Take the homework and social media dilemma: At 9 p.m., shut off   everything except a   computer that has no access to   Facehook or Twitter, the researchers advise. "I'm not saying they shouldn't be allowed access to technology," Vaidya says. But some help in netting their concentration is necessary for them   so they can develop those impulse-control skills.”

In their study,Vaidya and co-author Shaun Vecera note researchers generally believe teenagers are impulsive（冲动的)，make bad decisions，and engage in risky behavior because the frontal lobes（额叶）of their trains are not fully developed. But the UI researchers wondered. whether something more fundamental was going on with adolescents to cause behaviors independent of higher-level reasoning.

"We wanted to try to understand the brain's reward system how it change from chillhood to adulthood," Says Vaidya, who adds the reward character in the human brain is easier than decision-making. “We've been trying to understand the reward process in adolescence and     whether there is more to   adolescence behavior than an under-developed frontal   lobe,”he adds.For their study ,the researchers persuaded 40 adolescents, aged 13 and 16,and 40 adults, aged 20 and 35 to participate.

In the future,researchers hope to look into the psychological and neurological（神经学上的）aspects of their results.

1. What does the passage mainly tell us?

A．The initial rush of texting is less attractive for adolescents than the long-term pay off of studying.

B．Always, rewards are attractive to teenagers.

C．Resistance can be controlled well by adolescents.

D．Getting rewards is the greatest motivation for adolescents to study.

2. Which   statement   agrees with Vaidya's idea?

A．The influence of the reward is weak in adolescents.

B．Parents should help children in making decisions.

C．Children should have access to the Internet.

D．Children need help in refocusing their attention.

3. What result does teenagers' brain underdevelopment lead to?

A．Doing things after some thought.

B．Making good decisions.

C．Joining in dangerous actions.

D．Escaping risky behavior.

4. How did the researchers carry out their study?

A．By making a comparison of brain examinations.

B．By examining adults’ brain.

C．By examining teenage brain.

D．By building the train’s reward system.

3 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Up to 82 percent of children with healthy mothers are not easy to be obese（肥胖的）, according to research. A mother,     1     has a healthy weight, exercises regularly, eats a healthy diet, doesn’t smoke and only     2    (drink) wine in moderation, is significantly less likely     3    (have)a fat child, scientists say.

And research suggests it could be more to do with nurture(养育)    4     nature, as a mother's lifestyle appears     5    (direct) linked to the health of her child. When both mother and child follow a healthy lifestyle, the risk of obesity     6    (reduce)even more, the study of more than 24,000 children found.

The study examined the medical history and lifestyles of more than 24,000 children aged nine     7     fourteen, born to almost 17,000 women in the US. Researchers looked at the link between overall mother health and likelihood of a child     8    (be) obese.

The mother's health was judged on her height-to-weight ratio(比例), her diet, amount of physical     9    (active), smoking status and how much alcohol she drank. A healthy weight and diet, regular exercise, no smoking and moderate drinking all reduce the chance of a woman having     10     obese child.