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B
Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine. Sometimes they wore running shoes. Other times they ran barefoot.
Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of the American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come
down first. Also, the heel generally has thick material under it to soften landings.
60. How many organizations are involved in the two studies?
A. Three. B. Four. C. Five. D. Six.
61. What can we learn from the text?
A. Most running shoes are designed improperly.
B. The design of high heels is better than that of running shoes.
C. No one will run with running shoes in the future.
D. Both of the studies are done in America.
62. Why do running shoes increase the risk of injuries to runners?
A. They could create stress.
B. They’re too big and heavy.
C. They can affect the way the runners land.
D. Their heels can soften landings.
63. How did the researchers do the two studies?
A. By practising. B. By comparing. C. By questioning. D. By reasoning.
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B
Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine. Sometimes they wore running shoes. Other times they ran barefoot.
Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of the American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come
down first. Also, the heel generally has thick material under it to soften landings.
60. How many organizations are involved in the two studies?
A. Three. B. Four. C. Five. D. Six.
61. What can we learn from the text?
A. Most running shoes are designed improperly.
B. The design of high heels is better than that of running shoes.
C. No one will run with running shoes in the future.
D. Both of the studies are done in America.
62. Why do running shoes increase the risk of injuries to runners?
A. They could create stress.
B. They’re too big and heavy.
C. They can affect the way the runners land.
D. Their heels can soften landings.
63. How did the researchers do the two studies?
A. By practising. B. By comparing. C. By questioning. D. By reasoning.
查看习题详情和答案>>A little girl was given so many picture books on her seventh birthday that her father. Who should have run his office and let her mother run the home, thought his daughter should give one or two of her new books to a little neighbor boy named Robert, who had visited their home sometimes.
Now, taking books, or anything else, from a little girl is like taking sweets from a baby, but the father of the little girl had his way and Robert got a couple of her books. “After all, that leaves you with nine,” said the father, who thought he was a child psychologist（心理学家）,and couldn’t shout his big stupid mouth on the subject.
A few weeks later, the father went to his library to look up “father” in The Oxford English Dictionary, eager to enjoy the praise of fatherhood through the centuries, but he couldn’t find volume（册）F-G and then he discovered that others were missing too. A-B,L-M, V-Z. He looked everywhere for them, and learned what had happened to the four missing volumes.
“A man came to the door this morning” said the little daughter, “and he didn’t know how to get from here to Torrington or from Torrington to Wintec, and he was a kind man, much nicer than Robert, and so I gave him four of your books After all, there are thirteen volumes in the Oxford English Dictionary, and that leaves you with nine.
According to the writer’s opinion,
A. a mother should keep house and father educate the children
B. A father should run the home as well as his office
C. A father should run his office and leave his children to his wife
D. A father shouldn’t only run his office but educate his children
“The father of the little girl has his way” means
the father went out to work in his office
B. the father decided to the girl a lesson
C. the father still did what he wanted to.
Considering himself a psychologist, the father
couldn’t stop discussing the subject
B. couldn’t helping（禁不住）talking about the subject
couldn’t refuse to listen to the subject
D. couldn’t give an explanation of he subject
What’s still unclear to us in the story?
A. The exact number of the picture books the girl had received.
B. How many volumes the Oxford English Dictionary includes.
C. Whether each volume of the dictionary includes entries beginning with two letters.
D. Whether the father knew his daughter’s mind well
What do we know about the little girl?
A. She liked Robert very much. B. She liked reading dictionary
She dislikes what her father did to her picture books.
D. She is a kind and helpful girl.
查看习题详情和答案>>Many years ago, I owned a service station and roadhouse on the main road between Melbourne and Adelaide．
One very cold, wet night at about 3 : 30 a．m, there was a 36 at the front door of our house．A young man, 37 from head' to toe, explained that he had 38 out of petrol about 30 km up the road．He had left his pregnant （怀孕的） wife and his two children 39 at the car and said that he would hitchhike （搭便车） back．
As soon as I 40 a can with petrol, I took him back to his car, where his two-year-old and four-year-old children were both 41 .They were wet and cold．I suggested that they 42 me back．
Before leaving, I had turned the heater 43 in the roadhouse, so when we went in, it was nice and 44 ．While the little ones played and ran 45 ,1 prepared bread and butter for the children, 46 hot chocolate for the adults．
It was about five a．m．before they 47 ．The young fellow asked me how much he should pay me and I told him that the petrol 48 had shown $ 15．He 49 offered to pay call-out fee, but I wouldn’t accept it．
About a month later,! received a 50 from Interstate, a large bus company that we had been trying to 51 to stop off at our roadhouse for a long time．It 52 out that the young fellow I had helped was its general manager, the most 53 person in the company．
In his letter, he thanked me again and 54 me that, from then on, all their buses would stop at my service station．In this 55 , a little bit of kindness was rewarded with a huge amount of benefit．
A．kick B．strike C．beat D．knock
A．cool B．hot C．wet D．warm
A．driven B．used C．come D．run
A．away B．behind C．off D．out
A．supplied B．poured C．equipped D．filled
A．sleeping B．crying C．quarrelling D．fighting
A．get B．ring C．lead D．follow
A．on B．off C．in D．over
A．clean B．dry C．warm D．tidy
A．around B．away C．out D．up
A．or B．but C．so D．and
A．left B．arrived C．ate D．stayed
A．tank B．can C．pump D．pipe
A．suddenly B．hurriedly C．worriedly D．thankfully
A．call B．letter C．check D．notice
A．get B．force C．require D．make
A．pointed B．turned C．worked D．found
A．generous B．successful C．serious D．powerful
A．praised B．persuaded C．informed D．warned
A．lesson B．business C．course D case
查看习题详情和答案>>A HOUSE WITH A HISTORY
Foulsham House is a fine,stone house of the 1790s.It stands by the River Byre,in twenty－five hectares（公顷）of the best farmland in the southwest.
Smithson built the house,and the story goes back to George,the young Prince of Wales,who fell in love with the beautiful lady Kitty Wake,at one of the first Lord Foulsham’s wild woods parties.In the past many great men rode on the hills about Foulsham House,and many fine ladies took tea in the Green Room.
The house has eight bedrooms,three bathrooms,two living－rooms and a dining room with a real Adam fire－place（壁炉）.The gentleman’s library has a view over the park and the river.All rooms are light and airy（空气通畅的）,with wood,high windows,and wood floors.
At the back of the house,where the third Lord Foulsham kept the horses,there is garage－space（停车的地方）for four cars.In many other ways,this house of the 1790s meets the needs of the 2000s.
If you wish to know more about Foulsham House,write to:
Harvey,Platt,Longford & Sons,
6,Castle Green,Gilham,Byreside.
The writer writes this passage to ________.
A.persuade people to buy it
B.give some information about Foulsham House
C.tell a love story
D.describe the beauty of a best farmland
People say that ________.
A.Smithson built the house for Lord Foulsham’s wild parties
B.Prince George fell in love with Kitty Wake at Foulsham House
C.Prince George and Kitty Wake fell in love with the Green Room
D.Lord Foulsham fell in love with a lady in Wales
The library ________.
A.has a fine view of the park and the river
B.is where great men and fine ladies took tea
C.has an Adam fire－place,and a real wood floor
D.has eight bedrooms,three bathrooms and two living－rooms
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