|
第3篇
in-line skating and injuries
Increasing number of children are taking up in-line skating，and it is those new skaters who are most at risk for injuries，according to a statement from an American research institute．
Some 17.7 million people younger than age 18 participated in the sport in the US in 1996，
a 24％ increase over the previous year．
Also in 1996，in-line skating injuries sent 76，000 skaters under the age of 21 to the emergency room．Inexperienced skaters accounted for 14％ of all injuries requiring treatment．
The most common reasons for injuries were losing one’s balance due to road debris，being unable to stop，out-of-control speeding，or falls while doing a trick．
One third of skating injuries are to the wrist，and two thirds of wrist injuries are fractures．Wearing wrist guards could reduce the number of these injuries by an estimated 87％，according to the AAP．
Likewise，elbow pads could reduce elbow injuries by 82％，and knee pads could reduce the number of knee injuries by 32％，advise the experts．
Helmet used by young skaters is required by law in New York and Oregon，and the research institute also recommends that young skaters wear a bicycle helmet or a similar approved sports helmet．
The age at which children are ready to use in．1ine skates depends upon a number of conditions，including the child’S foot size and body strength，general athletic ability and muscle coordination，and the ability to judge traffic and pay attention to the condition of the skating surface ahead，the expels advise．
The most dangerous skating practice，called‘truck—surfing’，involves skating while holding onto a moving vehicle．Few skaters have fatal injuries, but 31 out of 36 deaths reported since 1992 involved being knocked down by a motor vehicle，according to data from the US Consumer Product Safety Commission．
词汇：
inexperienced /adj．缺乏经
helmet／n．防护帽，帽盔验的，不熟练的
skate／n．冰鞋，四轮溜冰鞋，旱冰鞋
debris／n．垃圾，碎片
athletic／adj．运动的，体育的
fracture／n．骨折，破裂，折断
muscle／n．肌肉
pad／n．垫，衬垫，护垫
1．How many people took part in in-line skating in the US in 1995?
A)About 17．7 million．
B)More than 17．7 million．
C) Fewer than 17．7 million．
D)Exactly 17．7 million．
2.Which of the following is NOT mentioned as one of the most common reasons for injuries?
A)Skating with wrist and elbow wounds．
B)Losing one’s balance due to road debris．
C)Being unable to stop due to high speed．
D)Falling down when doing a trick．
3．What are the things experts might NOT advise youngsters to wear?
A)Wrist guards．
B)Elbow and knee pads．
C)Helmets of some kind．
D)Boots and thick clothes．
4．“Truck-surfing”means
A)skating inside a truck while it is moving．
B)skating while holding onto a moving truck．
C)skating at a speed faster than a truck．
D)skating at the end of a moving truck．
5．According to the last paragraph，bumping with a motor vehicle took up deaths reported since 1 992．
A)over 80％
B)below 80％
C)about 31％
D)about 36％
第五部分：补全短文（每题2分，共10分）
阅读下面的短文，文章中有5处空白，文章后有6组文字，请根据文章的内容选择5组文字，将其分别放会文章原有位置，以恢复文章原貌。请将答案涂在答题卡相应的位置。
Why do people shrink?
Did you ever see the movie Honey, I shrunk the kids? It's about a wacky dad (who's also a scientist) who accidentally shrinks his kids with his homemade miniaturizing invention. Oops! ____1____.
For older people, shrinking isn't that dramatic or sudden at all. It takes place over years and may add up to only one inch or so off of their adult height (maybe a little more, maybe less), and this kind of shrinking can't be magically reversed, although there are things that can be done to stop it or slow it down. ___2___.
There are a few reasons. As people get older, they generally lose some muscle and fat from their bodies as part of the natural aging process. Gravity (the force that keeps your feet on the ground) take hold, and the bones in the spine, called vertebrae, may break down or degenerate, and start to collapse into one another. ___3___. But perhaps the most common reason why some older people shrink is because of osteoporosis.
Osteoporosis occurs when too much spongy bone tissue (which is found inside of most bones) is broken down and not enough new bone material is made. ___4___. Bones become smaller and weaker and can easily break if someone with osteoporosis is injured. Older people --especially women, who generally have smaller and lighter bones to begin with -- are more likely to develop osteoporosis. As years go by, a person with osteoporosis shrinks a little bit.
Did you know that every day you do a shrinking act? You aren't as tall at the end of the day as you are at the beginning. That's because as the day goes on, water in the disks of the spine gets compressed (squeezed) due to gravity, making you just a tiny bit shorter. Don't worry, though. ___5___.
A. They end up pressing closer together, which makes a person lose a little height and become shorter.
B. Once you get a good night's rest, your body recovers, and the next morning, you're standing tall again.
C. Over time, bone is said to be lost because it's not being replaced.
D. Luckily, there are things that people can do to prevent shrinking.
E. The kids spend the rest of the movie as tiny people who are barely visible while trying to get back to their normal size.
F. But why does shrinking happen at all?
第六部分：完型填空 （每题1分，共15分）
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，并涂在答题卡相应的位置上。
One Good Reason to Let Smallpox Live
It’s now a fair bet that we will never see the total extinction of the smallpox virus．The idea was to cap the glorious achievement of 1 980，when smallpox was eradicated in the wild，by destroying the killer virus in the last two labs that are supposed to have it -- one in the US and one in Russia?If smallpox had truly gone from the planet，what point Was there in keeping these reserves?
__1__reality，of course，it was naive to __2 __ that everyone would let __3__ of
such a potent potential weapon．‘Undoubtedly several nations still have__4__ vials． __5__ the last“official”stocks of live virus bred mistrust of the US and Russia,__6__ no obvious gain．
Now American researchers have __7__ an animal model of the human disease,
opening the __8__for tests on new treatments and vaccines．So once again there’s a good reason to__9__ the virus--just in __10__ the disease puts in a reappearance．
How do we __11__ with the mistrust of the US and Russia? __12__．Keep the
virus __13__ international auspices in a well-guarded UN laboratory that’s open to all countries．The US will object，of course，just as it rejects a multilateral approach to just about everything．But it doesn’t __14__the idea is wrong．If the virus __15__ useful，then let’s make it the servant of all humanity——not just a part of it．
|
