B 
Today’s teens have a knowledge of the Internet that often surpasses(超过) that of their parents. Because so many teens are Internet savvy(了解, 常识), it is important that they also have an understanding of the dangers that exist online and how to deal with them. Watch teens share their own “Real-Life Stories” about issues affecting them on the Internet such as cyberbullying (网络欺凌), online enticement(诱惑), and giving out too much personal information.
| NSTeens - Terrible text |
| Some teens say and do terrible things to each other online because they don’t see the direct effects of their actions. So what should you do if you're cyberbullied? Watch the NSTeens in their latest video, "Terrible text," about a young girl who is troubled when a cyberbully sends mean text messages to her cell phone at all hours of the day and night. Visit NSTeens.org. |
| NetSmartz411 |
| NetSmartz411 is a parent and guardian’s premier, online resource for learning about Internet safety, computers, and the Web. Search our knowledge base for answers to all of your questions about the online world! If you can’t find what you’re looking for, use the “Ask the Experts tab ”to send us a question. Your question will be answered by professionals who know a lot about Internet safety —— the real-life analysts at the National Center for Missing & Exploited Children. We handle daily reports about the online exploitation of children; and well show you the steps you can take to keep the children and teens in your life safer online. Visit NetSmartz411.org. |
| CyberTipline Report |
| The CyberTipline is the place to report any incidents of Internet exploitation. If you find yourself in a situation where you need help, visit www.cybertipline.com and make a report. If you fear that you are in immediate danger, contact your local law enforcement (执法部门). |
| Real-Life Stories |
| Watch real-life stories told by teens who have been victims of Internet exploitation. Real-Life Stories |
| NetSmartzKids |
| Are you concerned about your younger brothers or sisters safety online? Visit www. NetSmartzKids.org with them to help them learn how to avoid the dangers that exist on the Internet. |
55. The ad is intended for _______.
A. kids loving to play games online
B. only victims of Internet use
C. kids and their parents who want to learn about the safety online
D. pre-school students who know little about Internet
56. If you visit the website, you can ________.
A. share your friends “Real-life Stories” about issues affecting them on the Internet
B. have an understanding of the dangers that exist online and how to deal with them
C. say and do terrible things to each other online
D. ask for help when you have difficulty with your study
57. If you visit www.cybertipline.com, you can _______.
A. contact your local law enforcement
B. search our knowledge base for answers to all of your questions about the online world
C. report any incident of Internet use
D. help your brothers or sisters siblings learn how to avoid the dangers that exist on the Internet.
58. Which of the following stories you can share on the Real-Life Stories?
A. Teen murdered by man she met in chat room.
B. Problem of losing weight.
C. Left home alone.
D. Hurt by second hand smoke in the Internet cafe.
Language is always changing. In a society where life continues year after year with few changes, the language does not change, either. The earliest known languages had difficult grammar but a small, limited vocabulary. Over the century, the grammar changed, and the vocabulary grew. For example, the English and Spanish people who came to America during the sixteenth century gave names to all new plants and animals they found. In this way, hundreds of new words were introduced into English and Spanish vocabularies. Today life is changing very fast, and language is changing fast too.
There are several major language families in the world. Some scientists say there are nine main families, but other scientists divide them differently. The languages in each family are connected, and scientists think that they came from the same parent language About 3 percent of the people in the world speak languages that are not in these major families. The early language had ______.
| A．a lot of problems | B．words and easy grammar |
| C．words but no grammar | D．grammar but not many words |
In the next few hundred years we can expect language to ______.
| A．stay exactly the same | B．change a great deal |
| C．change only a little | D．add more words and drop some grammar |
What this article shows is that ______.
| A．languages change fast | B．languages really don’t want to change |
| C．language changes with changes of society | D．Spanish and English change |
From this article we can see that ______.
| A．language can change very slowly or very quickly |
| B．Though our life changes, our language won’t change. |
| C．we should give our plants new names |
| D．English and Spanish are the only languages that have changes |
More and more often we heard of people talking about Karaoke (卡拉OK). But what on earth it is about still remains a question for many people. Karaoke is a sort of acoustic (听觉的) equipment which was invented in Japan around the middle of the 1970's. It means "a band without people" in Japanese. In fact, it is just a music tape without words. This equipment first appeared in some public houses and snack bars, and mainly for the customers to enjoy themselves. Most of the music in Karaoke was popular music. Therefore, at times, when anyone felt like it, he might sing songs to the accompaniment (陪伴) of the music that came from the equipment. Shortly after its invention, Karaoke was spread to the whole world. It was introduced to China and was welcomed by many people. Although you are not a good singer, or even sometimes you may sing out of tune, you can always enjoy yourself by singing Karaoke.In this passage "band" means "group of persons ________."
| A．who play games on the sports ground |
| B．who play music together |
| C．living in the same neighborhood |
| D．doing things together under a leader and with a common purpose |
Karaoke is just a ______.
| A．cassette tape with only music | B．cassette tape recorder |
| C．band from Japan | D．voice recording equipment |
Karaoke was spread to the whole world ________.
| A．as soon as it was invented | B．long before |
| C．not long after it was invented | D．before long |
Welcome to Adventureland!
Everyone loves Adventureland! The Parks and Exhibitions were built for you to explore（探索）, enjoy, and admire their wonders. Every visit will be an unforgettable experience. You will go away enriched, longing to come back. What are you going to do this time?
The
Travel Pavilion
Explore places you have never been to before, and experience different ways of life. Visit the Amazon jungle（丛林）village, the Turkish market, the Tai floating market, the Be
rber mountain house and others. Talk to the people there who will tell you about their lives
, and things they make. You can try making a carpet, making nets, fishing…
The Future Tower
This exhibition shows how progress will touch our lives. It allows us to look into the future and explore the cities of the next century and the way we’ll be living then. Spend some time in our space station and climb into our simulator（模拟装置）for the Journey to Mars!
The Nature Park
This is not really one park but several. In the Safari Park you can drive among African animals in one of our Range Cruisers: see lions, giraffes, elephants in the wild. Move on to the Ocean Park to watch the dolphins and whales. And then there is still the Aviary to see…
The Pyramid
This is the center of Adventureland. Run out of film, need some postcards and stamps? For all these things and many more, visit our underground shopping center. Come here for information and ideas too.The Travel Pavilion is built to help visitors.
| A．realize the importance of travelling |
| B．become familiar with mountain countries |
| C．learn how to make things such as fishing nets |
| D．learn something about different places in the world |
If you are interested in knowing about what people’s life will be, you may visit.
| A．The Travel Pavilion | B．The Future Tower |
| C．The Safari Park | D．The Pyramid |
If you want to get a toy lion to take home, where will you most likely go?
| A．The Pyramid. | B．The Nature Park. | C．The Future Tower. | D．The Travel Pavilion. |
It is natural that children are curious about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.
As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
Scientists spend their lives trying to find out about the world．Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry.
These scientists have already discovered a lot about our world．For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutriti
on and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.According to the passage, which of the following statements is true
?
| A．People of different ages are interested in different things |
| B．People in different countries are interested in different things. |
| C．Men and women are curious about different things. |
| D．People are curious in the same way. |
Scientists who work with the biological sciences study____.
| A．the earth , the oceans and the sky | B．plants and animals |
| C．man-made things | D．ocean water |
When you run, your muscles need ____.
| A．more nutrition and oxygen | B．more signals | C．more salt | D．water |
A rock cracks _____.
| A．in wet regions |
B．in dry regions |
| C．at very high or very low temperatures | D．when salty water falls in |
People are always curious because ____.
A．they cann ot explain many things |
B．they know nothing about the world |
| C．they know little about the world |
D．they want to be scientists |
Chocolate is good for your heart, skin and brain. Usually, people think that chocolate is bad for their health. They describe chocolate as “something to die for” or say “death by chocolate”．Now they should bite their tongues! Evidence(证据) is showing that some kinds of chocolate are actually good for you in the following ways:
A happier heart
Scientists at Harvard University recently examined 136 studies on cocoa—the main ingredient in chocolate and found that it does seem to strengthen the heart．Studies have shown heart benefits from increased blood flow．These benefits are the result of cocoa’s chemicals, which seem to prevent both cell damage and inflammation(炎症)．
Better blood pressure
If yours is high, chocolate may help．Jeffrey Blumberg from Tufts University recently found that people with high blood pressure who ate 3.5 ounces of dark chocolate per day for two weeks saw their blood pressure drop quickly．
Muscle magic
Chocolate milk may help you recover after a hard workout(锻炼)．In a small study at Indiana University, people who drank chocolate milk between workouts did better on a tiredness test than those who had some sports drinks．
Better for your skin．German researchers gave 24 women a half-cup of special cocoa every day．After three months, the women’s skin was moister(滑润的)and smoother．The research shows that chocolate helps protect and increase blood flow to the skin, improving its appearance．
Brain gains
It sounds almost too good to be true, but research suggests that chocolate may improve your memory, attention span, reaction time, and problem-solving by increasing blood flow to the brain．Which of the following is wrong?
A．Coca’s chemic als can prevent both cell damage and inflammation. |
| B．Chocolate may help you lower your blood pressure. |
| C．People early know chocolate is good for their health. |
D．chocolate m ay improve your memory, attention span, reaction time, and problem-solving. |
What’s the meaning of the underlined sentence in the fourth paragraph?
| A．Sports drinks are better than chocolate milk． |
| B．Sports drinks can make people easy to be tired． |
| C．Drinking milk can keep you energetic at work． |
| D．We should drink chocolate milk between times when we work hard． |
What’s the main idea of the text?
| A．Chocolate, a Healthy Food | B．More Chocolate, Less Health |
| C．Chocolate and Blood Pressure | D．Advice on Eating Chocolate |
The conclusion that cho
colate may help lower blood pressure was brought out by．
| A．scientists at Harvard University |
| B．Jeffrey Blumberg from Tufts University |
| C．scientists at Indiana University |
| D．German researchers |
What’s the meaning of “bite their tongues” in the first paragraph?
| A．Think of it．． | B．Speak up． | C． Stop talking | D．Listen to it |