If you want to improve your child’s results at school, you could do a lot worse than ensuring that they do plenty of exercise. Scientists have already shown that physical activity can make you brainier. But a team in America has used scans to show that an important part of the brain actually grows in children who are fit. These youngsters tend to be more intelligent and have better memories than those who are inactive.
Scientists also found that one of the most important parts of their brains was 12 percent larger than those of unfit children. They believe that encouraging children to take exercise from a very young age could help them do better at school later. Researchers from the University of Illinois, in the U.S., studied the brains of 49 children aged nine and ten using a magnetic resonance imaging scan (核磁共振摄影扫描), a technique which provides very detailed pictures of organs and tissues in the body.
They also tested the fitness levels of the children by making them run on a treadmill (跑步机). The scientists found that the hippocampus, a part of the brain responsible for memory and learning, was around 12 percent larger in the fitter children.
Professor Art Kramer, who led the study published in the journal Brain Research, said the findings had important implications for encouraging individuals to take part in sport from a young age. “We knew that experience and environmental factors and socioeconomic status all impact brain development,” he said. “If you get some terrible genes from your parents, you can’t really fix that, and it’s not easy to do something about your economic status. But here’s something that we can do something about.”If you want to improve your children’s result in school, ____________.
A.it is worse to ensure that they do plenty of exercise |
B.you can have their brain scanned |
C.it could be better to make sure that they do a lot of exercise |
D.you can do a lot except ensuring that they do exercise |
According to the passage, which of the following statements is NOT true?
A.The fitness level of the children is linked to their intelligence. |
B.Children who have a larger hippocampus will probably have better memories. |
C.You can do something about the genes from your parents. |
D.Unhealthy children will probably have a smaller hippocampus than others. |
All the following factors that have some influence on one’s brain are mentioned EXCEPT ____________.
A.genetic factor | B.economic status | C.physical fitness | D.economic development |
There is no question that fewer teenagers are on the roads in the US.
In 1978, 50% of 16-year-olds had got their first driving licence. In 2008, according to the US Transportation Department, it was just 30%. The number of those aged 19 and under with driving licences has also been declining since 1978, when 11, 989, 000 had licence. In 2010, it was 9, 932, 441, or 4.1% of American drivers.
In the UK, 683, 273 teenagers have driving licences- just 1.85% of total licence holders, according to Department of Transport figures from September 2010.
But the decline in the US may have more to do with tougher tests and the introduction of the new rule in many states, which force drivers aged under 16 to be with licensed drivers of 21 years and older when driving.
In recent years, the annual number of journeys being made by American drivers of all ages has declined clearly for the first time ever. Car use began falling in 2007, when average petrol prices almost doubled to $4.12 a gallon, and the economy became worse.
But there are signs that it is getting back to normal and American remains a country on wheels. It has a higher number of cars per head of population than any other country in the world.
“Cars will always be a popular means of transportation in America. You have to take into consideration some places don’t have access to public transportation. Cars are the only way some people can get around,” says Kristin Nevels. This makes driving necessary in some rural states, where about twice as many teenagers are on the road than in big cities. The underlined word “declining” in the second paragraph most probably means “__________”.
A.rising | B.dropping | C.improving | D.holding |
In recent years cars are used less than before mainly because of __________.
A.traffic jams | B.harder tests | C.expensive petrol | D.worst economy |
We can learn from the last paragraph that Kristin Nevels __________.
A.doubts the popularity of the car use in the future. |
B.thinks American people can not live without cars. |
C.holds confident attitude to the cars’ future in America. |
D.believes America should build up its public transportation. |
What can be inferred from the text?
A.The UK has more teenager drivers than the US. |
B.A 15-year-old boy cannot drive alone in the US. |
C.The US has very developed bus transportation system. |
D.Big cities have more teenager drivers than rural areas in the US. |
Siri. The intelligent assistant that helps you get things done. All you have to do is ask.
Now you can use your voice to use your iPhone 4S. Just talk to Siri as you would to a person: “Do I need an umbrella?” or “Where’s the closest ATM?” Siri not only understands what you say, it knows what you mean. It figures out the right apps to use to find the right answer. Then, just like a personal assistant, it answers you. Siri makes phone calls, sends messages, schedules meetings, sets reminders, and more. How much more? Just ask, and Siri tells you that, too.
Dual-core A5 chip: the most powerful iPhone ever.
Two cores in the A5 chip provide up to two times more power and up to seven times faster graphics. And you’ll feel the effects. iPhone 4S is quick and responsive, which makes all the difference when you’re launching apps, surfing the web, gaming, an doing just about everything. And no matter what you’re doing, you can keep on doing it. Because the A5 chip is so power-efficient, iPhone 4S has outstanding battery life.
FaceTime. It’s even better face-to-face.
FaceTime of iPhone 4S lets you hear a voice and see the face that goes with it—iPhone to iPhone, iPad 2, iPod touch, or Mac over Wi-Fi. So no matter where they are, no matter where you are, you’ll always be there. Making a FaceTime call is just as easy as making a phone call. And it’s even easier with Siri. Just tell Siri “FaceTime with Mom” and you show up, smile and wave hello. You’ll never miss a big event, an important meeting or a good laugh. And who wouldn’t be happy to see your face? The passage is mainly about __________.
A.how to use iPhone 4S | B.some models of iPhone 4S |
C.some special uses of iPhone 4S | D.how to understand some pictures |
What is special about Siri?
A.It can take photos. | B.It can make videos. |
C.It can write messages. | D.It can answer questions. |
Which of the following helps iPhone 4S to perform fast?
A.![]() |
B.![]() |
C.![]() |
D.![]() |
Which of the following is NOT TRUE about FaceTime?
A.It can be used together with Siri. |
B.It allows you to see the other person’s face. |
C.It allows you to hear the other person’s voice. |
D.It can only be used between iPhone and iPhone. |
I arrived late one night on a business trip, so I decided to have dinner in the hotel I stayed in. As I was finishing my meal, an elderly couple came in. They were holding hands and had lovely smiles on their faces. They sat three tables from me. I was amazed at the love they showed for each other. It stuck me because it was shortly after ending a 20-year marriage and I still had pain in my heart.
My waiter was also their waiter. As I paid my bill, I asked what their bill was. He told me, and I gave him $40 to pay their bill. He asked if I knew them and I told him “No, I just wanted to repay them for the love that they were showing to each other,” and then I left.
The next day I entered the restaurant again. After I had been seated, the waiter who served me the night before told me that the strangest thing happened after I left the restaurant. When the elderly couple went to pay for their meal, they were told that it had been paid. The waiter just told them what I said. They were amazed. They looked around, asked for the bill of two young couples who were seated together, paid their bill and left.
I smiled and ordered my meal. About 45 minutes later, I finished my meal and was about to head out, but my waiter was nowhere to be found. I explained to the hostess that I needed to pay for my meal and hurry to the airport. She smiled and explained that I would not have to pay, because she felt she should pay for my bill because of the joy brought to the faces of the elderly couple and the amazement of the young couples.
When I told her that they didn’t have to do that, she said with a smile “Love creates Love.”From the first paragraph we know the writer must feel __________.
A.pleased | B.worried | C.sad | D.nervous |
The elderly couple paid the bill of the two young couples because they __________.
A.knew the two young couples |
B.were happy to pass the love they got |
C.were always ready to help poor people |
D.wanted to invite the young people to the meal |
The writer’s purpose of writing the passage is to __________.
A.suggest true love never dies |
B.share an interesting experience |
C.encourage us to help people in need |
D.prove a show of love really makes a difference |
"Hey, don't read in the hallway. Your eyesight will be damaged." You must have heard such warnings many times. “Don’t read in poor light!” This is one of the common beliefs that are supposed to help us live a healthy life. Such beliefs are, however, without scientific basis(根据), according to a paper published recently in the British Medical Journal.
Do you believe in the following sayings?
Reading in poor light ruins your eyesight.
In poor light, you might blink (眨眼) more, suffer from drying and have trouble focusing. But most of eye experts believe it is unlikely to do any damage forever.
We must drink at least eight glasses of water a day.
In 1945, the Nutrition Council in US suggested that people need to drink 2.5 litres of water a day. But the water contained in food, particularly fruit and vegetables, as well as in milk, juice and soft drinks, also counts towards the total.
We only use 10 percent of our brains.
This idea appears as early as 1907. People have long argued about our power of self-improvement and our brains’ possible abilities. But X-rays show that no area of the brain is silent or inactive.
Shaving your legs causes hair to grow black faster and thicker.
This theory is also illusion. Studies say that shaving has no effect on the thickness or rate of hair growth. Just over time, the edge of hair gets worn away and thus the edge of long hair becomes finer (更细). What does the paper say about some common beliefs?
A.They are useful knowledge in life. |
B.They help us live in healthy ways. |
C.They are well-known theories. |
D.They do not have scientific basis. |
Which of the following is TRUE according to the passage ?
A.People use 90 percent of their brains. |
B.Shaving your legs will give you thicker hair. |
C.Reading in poor light does harm to people’s eyes. |
D.People need not less than eight glasses of water a day. |
The underlined word “illusion” in the last paragraph probably means “_________”.
A.a wrong idea | B.a powerful evidence |
C.an interesting story | D.a clear instruction |
This passage is most likely to be found in __________ .
A.a newspaper | B.a guide book |
C.a history textbook | D.an advertisement |
I was riding my special motorbike this past weekend and stopped at a store. As I was getting my wheelchair off the back, a man watched me from his car and I noticed a wheelchair in his back seat. We spoke for a moment and I asked him about the wheelchair. He answered that it was for his daughter. “Well, do you think she would like to go for a ride on my motorbike with me?” I asked. He seemed shocked that a total stranger would ask him this. He thought about it for a second and said, “OK, as long as I can follow you.”
He introduced me to Amy and he sat her on my back seat. Her father followed me for a few miles and she talked non-stop about what she wanted for Christmas.
As we came back to the store she said, “This ride is the best Christmas present I could ever receive. I have been in a wheelchair my whole life and didn’t know I could do this.”Then she turned to him and said, “Oh Daddy, I’m going to be OK. Mr. Bryant does all kinds of things —and I will, too.” Her father hugged me and said, “I was sitting here praying for a gift for Amy that would encourage her. She often felt that her life was dull compared to other children. God answered my prayer(祷告) just now. Now I pray that God will bless you for your gift to Amy today.” Being kind and thoughtful to others, we can be an answer to prayer.How did the father feel at first when the author invited his daughter for a ride?
A.Anxious. | B.Embarrassed. | C.Surprised. | D.Moved. |
What can we know about the author?
A.He was a disabled man. | B.He usually drove too fast. |
C.He worked in a store. | D.He often helped people in trouble. |
According to the passage, the girl _____.
A.was not allowed to do some sports |
B.used to be a completely healthy person |
C.was unwillingly to communicate with a stranger |
D.usually felt sad about life because of her disability |
What did the author’s gift refer to according to the girl’s father?
A.The motorbike. | B.The wheelchair. | C.The ride. | D.The prayer. |