People all need friends because nobody wants to be lonely and a friend can help you in good and bad times.You’ve made friends since childhood，but you still don’t know who your true friends are.Here are some signs to tell you if your friend is a true friend：

Always honest

Honesty is important to keep a relationship alive.A true friend always tells you the truth.It may be hard sometimes but lying can destroy a friendship.It is important that your friend speaks honestly and never makes up stories.

________________________

There are always periods in your life when you have problems or difficulties.A true friend will always have time to listen to your problems and give advice.It may not be able to offer a solution to your problems but the fact that your friend made time to listen is a sign he/she cares for you.Your friend is not a true friend if he/she can never make time for you when you are in trouble.You also need to be reasonable and accept that your friend also has other things to do so he/she can’t always listen immediately to your problems.

Always respectful (尊敬的)

A true friend will always respect your opinion no matter whether he/she agrees or not.Your true friend may disagree but never insists that he/she is correct.

Always understanding

It is possible that some problems will arise between you and your friend.A true friend will always be forgiving (体谅的) and understanding，even if it isn’t his/her fault.We are all different people and we all make mistakes.A true friend is always forgiving and understanding because he/she doesn’t want to take the risk of losing his/her best friend.

[语篇解读]　什么样的朋友才是真正的朋友呢？本文给出了答案

1．What’s the best title for the third paragraph?

A．Always there for you.

B．Keep your secrets.

C．Always happy for you.

D．Remember your important days.

2．According to the passage，a true friend will always________.

A．follow your advice

B．offer a solution for your problems

C．listen immediately to your problems

D．respect your opinion even if he/she disagrees with it

3．Which of the following is NOT mentioned in the passage?

A．Never tell lies to friends.

B．Making time for friends.

C．Sharing fun with friends.

D．Paying attention to a friend’s opinions.

4．A true friend will always forgive and understand you because________.

A．he/she wants to help you

B．he/she doesn’t want to lose you

C．he/she wants you to feel confident

D．he/she doesn’t care about your mistakes

5．What’s the author’s purpose in writing this passage?

A．To teach us how to make true friends.

B．To find out how long a friendship can last.

C．To introduce his experience in making friends.

D．To tell us how to find out if a friend is a true friend.

If the balance of nature is ____ , a series of problems will arise .

A. disturbed   B. troubled    C. interrupted   D. confused

If the balance of nature is ____ , a series of problems will arise .

Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

“To provide enough power, we need certain methods with high energy density(密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”

Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.

“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”

His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.

“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

1. Which of the following is true of Jae Kwon?

A. He teaches chemistry at MU. 

B. He developed a chemical battery.

C. He is working on a nuclear energy source.

D. He made a breakthrough in computer engineering.

2. Jae Kwon gave examples in Paragraph 4_________.

A. to show chemical batteries are widely applied.

B. to introduce nuclear batteries can be safely used.[来源:Z.xx.k.Com]

C. to describe a nuclear-powered system.

D. to introduce various energy sources.

3. Liquid semiconductor is used to _________.

A. get rid of the radioactive waste  

B. test the power of nuclear batteries.

C. decrease the size of nuclear batteries

D. reduce the damage to lattice structure.

4. According to Jae Kwon, his nuclear battery _______.

A. uses a solid semiconductor       

B. will soon replace the present ones.

C. could be extremely thin          

D. has passed the final test.

5. The text is most probably a ________.

A. science news report        B. book review   

C. newspaper ad               D. science fiction story

Jack had no choice but to have both his arms removed because of a severe accident after drinking a lot of alcohol. From then on, he has had to __36__ on his younger brother, who became his shadow, never leaving him alone for years. Except for writing with his toes, he was totally unable to do __37__ else. As the two brothers grew up together, they had their own problems and would often __38__. Finally, his younger brother went away and lived __39__, leaving him heartbroken and at a loss what to do.
__40__, a misfortune befell（降临）a girl. One night she was preparing dinner when the kerosene light on the stove was overturned, __41__ in a fire which took her hands away. Having decidedly __42__ her sister’s willingness to help her, she determined to be thoroughly __43__. At school, she always studied hard．Most of all she learned to be self-reliant. “I am lucky. Though my __44__ are broken, my heart can still fly.” she wrote in her blog.
One day, the young man and the girl were both invited to a（n）__45__ programme. The boy told the television hostess about his __46__ future, whereas the girl was full of __47__ for her life. They were both asked to write something on a piece of paper with their __48__. The boy: My younger brother’s arms are my arms. The girl: Broken wings, flying heart.
Both of them had the same ordeal（痛苦经历）, but their different __49__   determined the nature of their lives. As seems the case, __50__ disasters can strike our life at any time. How you handle the __51__ when faced with it is the true __52__  of your character. If you choose to __53__ or escape from the ordeal, it will follow you wherever you go. But if you decide to be strong, the __54__ will turn out to be a fortune on which new __55__will arise.