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Last Sunday, I joined the voluntary group to help keep the traffic in good order at a big crossing near our school. At 8:00 a.m., we arrived there, wore red vests with the word VOLUNTEER on the back. We helped with the police remind the passers-by to obey traffic rule. To our delighted, they all waited for the green light patient except one motor-biker. We also give out some hand-made brochures about traffic regulations, for that many people praised us. About 4 hours later, they said good-bye to the police and left. Tired as we were, we all felt an honor to do our parts.

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In the famous fairy tale, Snow White eats the Queen's apple and falls victim to a curse£¨×çÖ䣩;in Shakespeare's novel, Romeo drinks the poison and dies; some ancient Chinese emperors took pellets£¨Ò©Í裩that contained mercury£¨Ë®Òø£©, believing that it would make them immortal, but they died afterward.

Poison has long been an important ingredient in literature and history, and it seems to always be associated with evil, danger and death. But how much do you really know about poison?
An exhibition, The Power of Poison, opened last month at the American Museum of Natural History in New York, intended to give the audience a more vivid understanding of poison.
The museum tour starts in a rainforest setting, where you can see live examples of some of the most poisonous animals: caterpillars£¨Ã«Ã«³æ£©, frogs and spiders. Golden poison frogs, for instance, aren't much bigger than a coin, but their skin is covered with a poison that can cut off the signaling power of your nerves, and a single frog has enough venom to kill 10 grown humans.
"Poisons can be bad for some things," Michael Novacek, senior vice president of the museum, told NBC News. "Yet they can also be good for others."
A poisonous chemical found in the yew tree is effective against cancer, which is what led to the invention of a cancer-fighting drug called Taxol.
The benefits from natural poisons are not limited to just medicine. Believe it or not, many substances£¨ÎïÖÊ£©that we regularly ingest£¨ÉãÈ룩-chili, coffee and chocolate-owe their special flavors or stimulating£¨ÌáÉñµÄ£©effects to chemicals that plants make to poison insects.
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£¨1£©What does the underlined word "immortal" in Paragraph 1 mean?
A.happy
B.not moral
C.living forever
D.sick
£¨2£©What is the main purpose of the exhibition The Power of Poison?
A.To give people more in-depth knowledge about poison.
B.To teach people how to handle poisonous animals.
C.To inform people about which animals are the most poisonous.
D.To show how poison has been used for medical treatment.
£¨3£©Which of the following statements about the Golden poison frog is TRUE according to the article?
A.Its skin can cut off the signaling power of your nerves.
B.It's about the size of a coin.
C.It's the most poisonous animal on display.
D.You can only see it in a rainforest setting of the museum.
£¨4£©The stimulating effects of coffee come from ________.
A.natural poison made by the plant
B.the substances that we regularly ingest
C.chemicals produced by poisonous insects
D.its special flavor

¡¾ÌâÄ¿¡¿ÔĶÁÀí½â

What brings a nation together? Of the four choices ¡ª shared values, language, history, and religion, it's shared values. In our latest poll (ÃñÒâµ÷–Ë), seven out of 16 countries chose values as the greatest factor (ÒòË÷£©bringing a nation together, and six preferred language. Both choices scored high in the poll, suggesting that our values and how we express them are closely linked Still, history was not forgotten in some countries, particularly in Mexico and Russia. Even Canada and the United States chose national histories as the second-most important factor uniting their people. The biggest surprise? Not one country picked religion as its top choice.

Respect your elders
In most countries, the oldest
generation considered values more important to a nation than did those who are under 45 years old.

Do you speak Canadian?
Language scored lower in Canada than in all other countries polled, perhaps because the country speaks two official languages, French and English.

Church and state
Most people polled do not connect their religious beliefs to their national pride. Religion ranked last in 13 countries ¡ª with France scoring it at 1%, the lowest of all.


£¨1£©According to the poll, what was the most important factor in bringing a nation together?
A.Language.
B.Values.
C.History.
D.Religion.
£¨2£©In which country did language score the lowest in their national pride?
A.Canada.
B.Mexico.
C.France.
D.America.
£¨3£©According to the charts, shared values and language were considered equally important in
A.Australia
B.Brazil
C.China
D.India

¡¾ÌâÄ¿¡¿ ¢ÙA quarter of women and two-thirds of the men in a study chose to experience an electric shock (µç»÷) rather than do nothing and spend time alone with their thoughts, which shows we hate being alone.

¢ÚSolitude (¶À´¦) has had a bad reputation (ÃûÉù) because it is sometimes used as a form of punishment, said Robert Coplan, a professor of psychology at Carleton University.

¢ÛThe problem is that we forget solitude can also be a choice and it does not have to be full time, because there is so much research showing that humans are social creatures who benefit from communicating with others. ¡°People will try to dismiss that it¡¯s also important to spend time alone,¡± said Coplan. ¡°It¡¯s hard for them to imagine that you can have both.¡±

¢ÜPeople often feel inhabited (¾Ð½÷µÄ) from enjoying activities alone, especially when they worry others are watching and judging them. It can stop us from doing things that will bring us joy.

¢ÝIndeed, loneliness hurts ¡ª it can even negatively impact your health. But the mere act of being alone with oneself does not have to be bad.

¢ÞAn online survey called ¡°The Red Test¡± showed that activities considered to be most relaxing are things that are done alone. Spending time alone is actually something our bodies long for and we need to make ourselves feel better.

¢ßThe freedom of not having to follow the lead of others, with no pressure to do anything, to talk to anyone, or to make plans with people, is a great way to relax, even for highly social individuals. It also helps us discover new interests and ideas without having to worry about the opinions of others.

¢àDeveloping this sense of being alone and making the choice to be alone can help develop your sense of self. Knowing oneself makes it easier to find other people who share your passions and develop true friendships.

¢áDon¡¯t confuse loneliness with time by yourself. The latter can improve your creativity and confidence, and help you control your emotions so that you can better deal with different situations. Getting started is easy ¡ª all you need is yourself.

¡¾1¡¿The underlined word ¡°It¡± in paragraph 4 refers to ________.

A.anxiety about what others think of you

B.social worries about spending time alone

C.imagination of the effects of feeling lonely

D.the choice of feeling lonely or being alone

¡¾2¡¿The benefits of being alone do not include ________.

A.exploring our interestsB.widening our circle

C.reducing our pressureD.improving our confidence

¡¾3¡¿What¡¯s the author¡¯s attitude towards being alone?

A.Disapproving.B.Doubtful.

C.Uninterested.D.Supportive.

¡¾4¡¿Which is the structure of the passage?

A.B.

C.D.

¡¾ÌâÄ¿¡¿ You can make our great places better. Become a VIP and volunteer with us today!

The National Park Service offers many volunteer opportunities for individuals and groups as part of theVolunteers-In-Parksprogram. We are aimed to promote all parks to be a better place for people of all ages and colors to live a nicer life. We would regularly organize activities like collecting litters, watering young plants or killing pests on trees and so on. Besides, posters and signs of bettering parks are also in our daily doings.

We provide a one-time service or a longer term position in many partner organizations. Opportunities are available for anyone who are willing to serve for the society. And the working specific places are various ,from your nearby parks in your community to all other places throughout the United States, including the territories(±ß¾³) in the Pacific and the Caribbean£¨¼ÓÀձȺ££©. Some positions are specialized and need particular talents, knowledge, skills, and abilities, as well as a background check, such as writers or editors need to have good abilities of words. Other positions only require a willingness to volunteer. If you want to be a part of a shared future and do something for the world, please join us and your coming can make a big difference!

To learn more about us and details that guide our volunteer programs, click www.Volunteer.gov and then search for a volunteer event on the webpage, or contact us at 789-431-45

¡¾1¡¿The National Park Service aims at helping ______.

A.better parksB.water young plantsC.collect littersD.kill pests

¡¾2¡¿What kind of service does this organization provide?

A.one-day tour in USA

B.weekend services for community

C.services in Canada

D.a one-time and long-term activity

¡¾3¡¿The passage is probably taken from________?

A.a newspaperB.a magazineC.a text bookD.a website

¡¾4¡¿What is the purpose of this passage?

A.to call on people to attend the National Park Service

B.to introduce a volunteer group to readers

C.to show how to visit parks in the USA

D.to make people know the value and importance of protecting parks

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