New research suggests that cutting daily sitting time to less than three hours might extend your life by two years.
“Humans were designed to move. But modern lifestyles and office jobs rarely encourage us to walk around,” says Peter Katzmarzyk, an expert at the University of Louisiana.
“Sitting is common in our lives today. We sit while we’re driving, eating and watching TV. And many of us sit for many hours at work.” Katzmarzyk said.
“We can’t throw away physical activity. It’s extremely important. We have 60 years of researchers showing us that.” Katzmarzyk said.
Katzmarzyk and other researchers are trying to discover how sitting all day affext our lifespans（寿命）.
“This is a relatively new area of study…Studies that have assessed the relationship between sitting and death or television viewing and death have been very rare in the last four or five years,” said Katzmarzyk.
Katzmarzyk and his colleagues analyzed data from these studies, which involved almost 167,000 adults. Then they turned to a government-run survey of Americans to find out exactly how much time people spend sitting and watching.
Not only did the team find that U.S. citizens could live longer by sitting less, they found that cutting TV time to less than two hours a day could add an extra 1.4 years to their lives.
People who’ve spent half their waking lives sitting down might well ask, “Is it ever too late to make a change?”
“We would say ‘No. It’s never too late.’ Physical activity is good for you at every age.” Katzmarzyk said.
Katzmarzyk says studying this problem has inspired his team to make a few changes in their own lives. They recommend a few simple changes: frequently getting up from your desk, taking walks at lunch time, and instead of e-mailing colleagues, walking over to their offices and talking face-to-face——all activities that can be enjoyable as well as life-extending.
1.Peter Katzmarzyk seems to believe that _____.
A. we should not sit for a long time
B. most people like to sit most of the time
C. office jobs encourage us to walk a lot
D. modern lifestyles are good for our health
2.The underlined word “that” in paragraph 4 probably refers to _____.
A. taking physical exercise is important
B. many researches should be carried out
C. we should exercise during working hours
D. people should focus on their health at work
3.Why did Katzmarzyk and his colleagues turn to a government-run survey?
A. To collect information for the government
B. To know how long people sit and watch TV
C. To find what citizens do in their spare time’
D. To discover how sitting for long affects their lives
4.The best title of the text would be _____.
A. What Is the Healthiest Lifestyle？
B. Sitting for a Long Time Is Bad for Us
C. Study Suggests Sitting Less Can Extend Life
D. It Is Never Too Late to Change Our Way of Life
The Mysterious Universe
By Ellen Jackson and Nic Bishop
How did the universe begin? How big is it? What is dark matter? Cosmologist（宇宙哲学家）and expert supernova（超新星）hunter Alex Filippenko hopes that supernovas can help us answer some of these questions. But first we’ve got to find them! Join Alex and his team as they go on the hunt with huge telescopes and banks of computers.
The Time and Space of Uncle Albert
By Russell Stannard
What would you say if your uncle asked you whether you would like to go into space? You’d say, “When do I leave?”, just like the girl in this story. Gedanken is speeding across the universe trying to help her uncle answer some questions, such as “How big is space?” and “Where does gravity come from?” Along the way she also discovers how to get heavier without getting fat, how to live forever without knowing it, and the strange things that can happen when you go really fast.
George’s Secret Key to the Universe
By Lucy Hawking and Stephen Hawking
When George chases his pet pig through a hole in the fence, little does he expect that he will soon be riding a comet（彗星）around Saturn（土星）. But just as he discovers the joys of space exploration with the computer Cosmos, which can open doors anywhere in the universe, everything starts to go wrong. When George’s lest-favorite teacher steals Cosmos and traps his friend’s dad in a black hole, can George set things right in time?
A Child’s Introduction to the Night Sky
By Michael Driscoll
With a telescope or without one, this book can get you started exploring planets, stars and even strange stuff like time, space, and black holes. The universe is a big place, but this book comes with a handy star finder that you can take out with you at night to help you find your way around the stars. Look up and discover the universe!
1.According to the text, Alex Filippenko ______.
A. invented huge telescopes
B. is looking for supernovas
C. doesn’t need many computers
D. knows a lot about dark matter
2.What do we know about George’s Secret Key to the Universe？
A. It is a sad story
B. It is about a pet pig
C. It is a co-authored book
D. It is based on a real life story.
3.Which book would you read if you want to know about gravity?
A. The Mysterious Universe
B. The Time and Space of Uncle Albert
C. George’s Secret Key to the Universe
D. A Child’s Introduction to the Night Sky.
4.What do the four books have in common?
A. They have the same topics?
B. They are intended for adults.
C. They have the same number of characters
D. They leave many questions to the readers
I find some of the ways in which Chinese parents show love for their children rather surprising. Obviously there are some pretty big differences between our behaviors and theirs in this respect. Most Chinese children seem to get whatever they want, from ice creams, sweets and toys to endless attention from the adults around them. Is this a sort of spoiling or love? I wonder.
Most westerners would think it is a sort of spoiling rather than love. We think love means educating your children and bringing them up to lead an independent life. That includes learning to accept the fact that he can't get everything he wants. As an adult, he will not always get the quite expensive car he hunts for; she will not always manage to acquire the beautiful dress she longs for. So we try to teach our children early to cope with the disappointment of not getting what they want.
I find too much such kind of love for the children can actually spoil them. To my surprise, it seems that the life of a Chinese child is rather hard. Without doubt, the child is the very center of a whole circle of adults, but on the other hand he or she is also expected to start studying according to adults' wishes. Many children of my son's age take piano lessons, painting classes and even English lessons. It looks as if Chinese adults think that just playing without learning anything is a waste of time. So in this respect our children appear spoiled, just because they are allowed to play. But without this sort of play how can western children develop such free and rich imaginations? In fact the connection between this imagination and the creativity is so important in the children’s future life.
1.In which way do most Chinese children seem to be spoiled?
A. They can be supported by their parents.
B. They can play whenever they want.
C. They need not behave themselves.
D. Their demands can always be satisfied.
2.In the author's opinion, the life of a Chinese child is .
A. rather hard B. rather easy C. independent D. colorful
3.The author thinks Western children appear spoiled because .
A. they can manage time by themselves
B. they can have the freedom to play
C. they can take piano lessons
D. they may have expensive toys
4.The best title of the passage could be .
A. Chinese children's early education
B. How to develop kids' imagination
C. What is the real love for children
D. The imagination and creativity
We all need a healthy environment. ____, we produce waste every day and it ____ harm to our environment. Though we are young, we can still do ____ to help. In fact, even the simplest everyday activities can make a real ____ to the environment. Here are some ideas for you to live a ____ life.
Remember these three _____: reduce, reuse and recycle.
Reduce means “use less”. Don't ____ things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think if it is really ____ or maybe the ____ one will be just as good! When we do buy things, choose local products if possible, and try not to buy too many things from a ____ country.
Reuse means “use again”. Use things for ____ possible. When we buy things, make sure that they ____ a long time. We should take care of them ____ they will last, and we should ____ them if we can instead of throwing them away and buying new ones. Don't use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them ____.
Recycle means “change things into something else”. Although it ____ energy to change something into something else, it’s better than ____ things or burning them. Find out ____ can be recycled in your neighbourhood and take part in recycling programmes. We should also buy ____ made from recycled materials, such as recycled paper, to help save ____.
1.A. Therefore B. However C. Otherwise D. Besides
2.A. gives B. takes C. causes D. does
3.A. something B. everything C. nothing D. everything
4.A. difference B. mistake C. effect D. help
5.A. busy B. hard C. green D. happy
6.A. letters B. words C. sentences D. lessons
7.A. buy B. produce C. save D. waste
8.A. necessary B. important C. helpful D. useful
9.A. cheap B. expensive C. new D. old
10.A. rich B. developed C. foreign D. poor
11.A. as soon as B. as long as C. as much as D. as well as
12.A. use B. last C. keep D. live
13.A. so that B. if C. because D. though
14.A. sell B. lend C. throw D. repair
15.A. less B. more C. again D. better
16.A. costs B. spends C. takes D. pays
17.A. throwing away B. putting away C. taking away D. giving away
18.A. that B. which C. what D. how
19.A. cups B. bags C. boxes D. products
20.A. money B. trees C. paper D. time
Look! Here _____. Let’s get on it.
A. is coming a bus B. comes a bus C. a bus is coming D. a bus comes
It is such a good place everybody wants to go and visit it is well known all over the world.
A. that; that B. as; as C. as; that D. that; as
