How can you find out what is going on inside a person' s body without opening the patient up? Regular X-rays can show a lot. CAT scans can show even more. They can give three-dimensional(三维) view of body organs(器官).
What is a CAT scan? CAT stands for Computerized Axial Tomography(层面X线照相术). It is a special X-ray machine that gets a 360 - degree picture of a small area of a patient's body.
Doctors use X-rays to study and examine diseases and injuries within the body. X-rays can find foreign objects inside the body or to take pictures of some organs inside if special things as dyes or special liquids are added to the organs to be X-rayed.
A CAT scanner, however, uses a beam(光束) of X-rays to give a cross-sectional view of a particular part of the body. A fine beam of X-rays is scanned across the body and circled around the patient from many different angles(角度). A computer analyzes(分析) the information from each angle and produces a clear cross-sectional picture on the screen. This picture is then photographed for later use. Several cross-sections, taken one after another, can give a clear "photo" of the entire body or of any body organs. The newest CAT scanners can even give a clear picture of active, moving organs just as a fast-action camera can "stop the action" giving clear pictures of what appear only mistily(模糊) to the eye. And because of the 360 - degree pictures, CAT scans show 3-dimensional views of organs in a manner that was once only seen during surgery or autopsy (examining a dead body). According to the first two paragraphs, doctors can see the inside of a patient's body by ______.
| A．giving the patient an operation |
| B．checking body organs |
| C．getting a 360-degree picture of a small area of a patient's body |
| D．examining the CAT |
From the last paragraph, we can infer that ______.
| A．the newest pictures become more misty |
| B．many pictures can be taken at the same time |
| C．the information about the scanned patient is not highly valued |
| D．some pictures of the scanned parts of the body are developed for further examinations in the future |
The best title of this passage might be ______.
| A．Modern X-ray | B．Three-dimensional View |
| C．Fast - moving Camera | D．CAT Scan |
If you are having trouble falling asleep, you are in good company. About 65% of Americans said they have sleeping problems a few nights each week, according to a recent study by the National Sleep Foundation. Sleeping too little can lead to a higher risk of becoming fat and getting depressed(沮丧的). But before you go to a doctor for advice, you’d better examine your sleeping habits one more time. Some of your favorite evening habits may have something to do with the sleeping problems.
1. Setting a Bright Alarm Clock.
The light of your bright alarm clock can prevent you from falling asleep. You can make your room as dark as possible. Cover the bright numbers with a book or consider buying a small travel clock. Your cellphone alarm may also do the trick.
2. Counting Sheep
When you just can’t fall asleep, it’s useless to stay in bed to count sheep. If you’ve been trying to fall asleep for more than 30 minutes, the National Sleep Foundation suggests you get up to do some reading or watch TV for a while. Such activities will make you sleepy. Before you know it, you’ll be going back to bed really tired.
3. Exercising Late at Night
Daytime workouts(锻炼) will keep you full of energy for hours. That’s why you don’t want to exercise within three hours of hitting the sack. Fierce(剧烈的)physical activity raise your body temperature and pumps your energy level—both are bad for a good night’s sleep. What can we learn from the first sentence of the passage?
| A．It’s not good to fail to fall asleep at night. |
| B．People in a good company often have sleeping problems. |
| C．There are many people who have sleeping problems. |
| D．You should find someone to talk to if you can’t fall asleep. |
The underlined part “hitting the sack” in the last paragraph means “______”.
| A．going back home | B．going to bed |
| C．going to the gym | D．falling asleep |
Which of the following is NOT mentioned in the passage?
| A．The bad results of getting too little sleep. |
| B．Why the bright alarm clock keeps you awake. |
| C．What to do if you can’t fall asleep after 30 minutes. |
| D．Why watching TV and reading books make people sleepy. |
By writing the passage, the writer mainly wants to tell us _______.
| A．why so many people can’t sleep well at night |
| B．how to enjoy a good night’s sleep |
| C．that sleeping problems are troubling more and more people |
| D．that people may solve their sleeping problems by some habits |
Mirth Pham was born in Vietnam. He left his native country when he was 21 years old. Minh has been in America for almost two years. There is still much he does not understand about America.
Once Minh was in a supermarket. He saw an old man and an old woman. They wanted a box of cereal(麦片).The box was on a high shelf. The man and the woman couldn't reach it. Minh saw a ladder. He got on the ladder and got the box. He handed it to the elderly couple. They thanked him.
"Where are your children?" asked Minh. "Why don' t they help you buy food?"
"Our children have their own lives," said the man and the woman. "We like to be independent." Mirth doesn't think this is right. In his country, .children help their parents. Minh gave the elderly couple his phone number. He told them to call him if they needed help. One night they asked Mirth to dinner, but they never asked him for help.
One day, Minh was walking with a Vietnamese friend. The two were going to a movie. Minh wanted to go to a restaurant first. Minh took his friend's hand. He pulled him toward the restaurant. People on the street stared at Minh. In Vietnam, friends often hold hands. Minh found out that people in America are not used to holding hands.
Minh Pham is going through a process (过程) known as re-socialization. Socialization is the process in which a person learns to live in a society. Everyone goes through this process. Minh went through it when he lived in Vietnam. But the Vietnamese way of life is much different from the American way of life. When Mirth came to America, he had to learn a new way of life. He had to learn how to live in a new society.
Minh has learned a lot about American life in two years. He still has a lot to learn. The process of re-socialization can take many years.Socialization is the process in which one ________________.
| A．learns to live in a society |
| B．travels from one country to another |
| C．learns to act independently |
| D．learns how to live happily |
What the elderly couple said gave us an example that American people, young or old, try to be ________________.
| A．kind | B．independent |
| C．helpful | D．friendly |
According to the passage, people stared at Mirth and his friend because Minh was________________.
| A．a Vietnamese |
| B．doing something unusual |
| C．entering a restaurant |
| D．not dressed like Americans |
Who should experience socialization according to the passage?
| A．The Vietnamese in America. |
| B．Older people. |
| C．Americans. |
| D．Everybody. |
Fun Day
To celebrate the Year of the snake
Organised by Lam Tin Youth Centre and Kwun Tong High School
Date: 2 February 2013
Time: 10 am—5 pm
Place: Kwun Tong Playground
Fee: $20 (buy three get one free)
Programmes: drama, lion dance, magic show and ballet performance
Highlights: 1) enter the lucky draw to win a digital camera
2) learn to make festival food
Join us on the Fun Day!
All are welcome!
Free Soft Drinks
Note:
● Tickets are available at the General Office of Lam Tin Youth Center
● For those who would like to be a volunteer, please contact Miss Olivia Wong one week before the activity.What you have just read is a _______.
| A．note | B．report | C．schedule | D．poster |
What is going to take place on 2 February, 2013?
| A．A big event to welcome a Chinese new year. |
| B．A social gathering to raise money for wildlife. |
| C．A party for close friends to meet and have fun. |
| D．A meeting of Kwun Tong High School students. |
How much do you have to pay in total if four of you go together?
| A．$20. | B．$40. | C．$60. | D．$80. |
Which of the following statements is true?
| A．Tickets are sold in Kwun Tong High School. |
| B．It’s unnecessary to take soft drinks with you. |
| C．Free digital cameras are provided for everybody. |
| D．Festival food will be served without extra charge. |
Wanted, Someone for a Kiss
We’re looking for producers to join us on the sound of London Kiss 100 FM. You’ll work on the station’s music programmes. Music production experience in radio is necessary, along with rich knowledge of modern dance music. Please apply (申请) in writing to Producer Vacancies, Kiss 100.
Father Christmas
We’re looking for a very special person, preferably over 40, to fill our father Christmas suit.
Working days: Every Saturday from November 24 to December 15 and every day from December 17 to December 24 except Sundays, 10:30—16:00.
Excellent pay.
Please contact the Enterprise Shopping Center, Station Parade, Eastbourne.
Accountants Assistant
When you join the team in our Revenue Administration Unit, you will be providing assistance within all parts of the Revenue division, dealing with post and other general duties. If you are educated to GCSE grade C level we would like to talk to you. This position is equally suitable for a school leaver or for somebody who has office experience. Wealden District Council.
Software Trainer
If you are aged 24—45 and have experience in teaching and training, you could be the person we are looking for. You should be good at the computer and have some experience in programme writing. You will be allowed to make your own decisions, and to design courses as well as present them. Pay upwards of £15,000 for the right person. Please apply by sending your CV(简历) to Mrs R. Oglivie, Palmlace Limited.
| A．Producer Vacancies, Kiss 100. |
| B．Mrs Oglivie, Palmlace Limited. |
| C．The Enterprise Shopping Center. |
| D．Wealden District Council. |
| A．is aged between 24 and 40 |
| B．may do some training work |
| C．should deal with general duties |
| D．can work for about a month |
| A．Producer, London Kiss. |
| B．Accountants Assistant. |
| C．Father Christmas. |
| D．Software Trainer. |
| A．One with GCSE grade C level. |
| B．One with some office experience. |
| C．One having good computer knowledge. |
| D．One trained in producing music programmes. |
“In wilderness(荒野) is the preservation of the world.” This is a famous saying from a writer regarded as one of the fathers of environmentalism. The frequency with which it is borrowed mirrors a heated debate on environmental protection: whether to place wilderness at the heart of what is to be preserved.
As John Sauven of Greenpeace UK points out, there is a strong appeal in images of the wild, the untouched; more than anything else, they speak of the nature that many people value most dearly. The urge to leave the subject of such images untouched is strong, and the danger exploitation(开发) brings to such landscapes(景观) is real. Some of these wildernesses also perform functions that humans need—the rainforests, for example, store carbon in vast quantities. To Mr.Sauven, these “ecosystem services” far outweigh the gains from exploitation.
Lee Lane, a visiting fellow at the Hudson Institute, takes the opposing view. He acknowledges that wildernesses do provide useful services, such as water conservation. But that is not, he argues, a reason to avoid all human presence, or indeed commercial and industrial exploitation. There are ever more people on the Earth, and they reasonably and rightfully want to have better lives, rather than merely struggle for survival. While the ways of using resources have improved, there is still a growing need for raw materials, and some wildernesses contain them in abundance. If they can be tapped（利用） without reducing the services those wildernesses provide, the argument goes, there is no further reason not to do so. Being untouched is not, in itself, a characteristic worth valuing above all others.
I look forwards to seeing these views taken further, and to their being challenged by the other participants. One challenge that suggests itself to me is that both cases need to take on the question of spiritual value a little more directly. And there is a practical question as to whether wildernesses can be exploited without harm.
This is a topic that calls for not only free expression of feelings, but also the guidance of reason. What position wilderness should enjoy in the preservation of the world obviously deserves much more serious thinking.
| A．many people value nature too much |
| B．exploitation of wildernesses is harmful |
| C．wildernesses provide humans with necessities |
| D．the urge to develop the ecosystem services is strong |
| A．The exploitation is necessary for the poor people. |
| B．Wildernesses cannot guarantee better use of raw materials. |
| C．Useful services of wildernesses are not the reason for no exploitation. |
| D．All the characteristics concerning the exploitation should be treated equally. |
| A．Objective. | B．Disapproving. |
| C．Skeptical. | D．Optimistic. |
CP: Central Point P: Point Sp: Sub-point(次要点) C: Conclusion
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