－Are you sure you have to? It’s been very late.

－I don’t know ________ I can do it if not now.

A. when B. what C. that D. How

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1.李明是由爺爺奶奶養(yǎng)大的。

Li Ming _____ ______ _____ by his grandparents.

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Mr. Wang is _____ _____ _____ the class.

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He ______ ______ ______ and devoted himself to his studies.

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This country has _____ _____ too many wars.

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F. Always follow the doctor’s advice for proper wear.

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John Nash，a Nobel Prize winner and a mathematical genius whose struggle with mental illness was documented in the Oscar-winning film A Beautiful Mind，was killed in a car accident on May 24th, 2015.

Born in West Virginia, Nash displayed a keenness for mathematics early in life，independently proving Femret's little theorem（定理）before graduating from high school. By the time he turned 30 in 1958，he was an unquestionable academic celebrity. At Princeton, Nash published a 27-page thesis that led to applications to economics，international politics, and evolutionary biology

His signature solution-known as a "Nash Equilibrium（納什均衡）”-found that competition among two opponents，not necessarily governed by zero-sum logic. Two opponents can, for instance，each achieve their maximum objectives through cooperating with the other, or gain nothing at all by refusing to cooperate. It is now regarded as one of the most important social science ideas in the 20th century.

In the late 1950s, Nash began a slide into mental illness. By the time Nash was awarded the Nobel Prize in Economics in 1994, he hadn't published a paper in 36 years. But like a child cured of a nightmare by the switch of a light, Nash recovered from his illness seemingly by choosing not to be sick anymore. He continued to work, travel，and speak at conferences for the rest of his life.

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1.John Nash passed away because of__________

A. a mental illness B. overwork

C. a traffic accident D. starvation

2.According to“Nash Equilibrium"，what will happen if two opponents refuse to cooperate?

A. They will get nothing at all.

B．They will get what they really want

C. 'They will lose the support from each other

D. They will achieve their maximum objectives.

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How to make friends

Choosing friends

Before you make friends,you have to decide who you want to be your friends.Most people like to have friends who like to do the same kind of things as they do.That doesn’t mean you have to be exactly like each other,just that you enjoy some of the same things.Think about your favorite things to do and try to talk to your classmates at lunch or rest about your hobbies.You are sure to find at least one person who’s excited about the same things that excite and interest you,too.

Making friends

●The quickest way to make a friend is to smile.When you smile,people think you are friendly and easy to talk to.It may not be easy at first to smile.But you can practice smiling in front of a mirror.When you look at yourself in the mirror,think if you’d rather talk to your smiling face or your usual scared or angry face.

●One easy way to start a conversation with someone is to say something nice about them.Think about how great you feel when someone says something nice to you.Doesn’t it make you want to talk to him?

●Ask your new friends questions about themselves.It’s the only way to get to know what they’re like and it’s the only way they’ll know that you are interested in them.

●Make sure you have something to add to the conversation,too.When someone asks you a question,do have an answer for them.There is nothing that will stop a conversation quicker than a shrug(聳肩) for an answer.

Activities

After you’ve made a friend who shares the same interests with you,it’s always fun to plan activities together that you’ll both enjoy.Inviting a friend to your house after school is a great way to make your friendship closer.

If you know a game your friend likes to play,you can plan to do that together.When you play a computer game,one person is always left sitting with nothing to do but watch.Not fun.

1.Before you make friends with someone,make sure .

A.both of you are exactly like each other

B.both of you enjoy some of the same interests

C.you have talked to him or her at lunch or rest about your hobbies

D.you have little in common with each other

2.When you want to make friends with someone,you should do all the following except .

A.smiling at him or her before talking

B.starting a conversation first

C.asking some questions about him or her

D.giving a shrug instead of an answer

3.To make your friendship last long,you shouldn’t .

A.do something that interests both of you together

B.invite your friend to your house at weekends

C.be always doing something by yourself with your friend left doing nothing

D.play basketball together in your free time

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