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第三部分：阅读理解(共20小题；每小题2分，满分40分)
阅读下列短文，从每篇短文后所给各题的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
A
Chinese New Year Celebration is the most important celebration of the year. Chinese people may celebrate the Chinese New Year in slightly different ways but their wishes are almost the same; they want their family members and friends to be healthy and lucky during next year.
Chinese New Year Celebration usually lasts for 15 days. Celebratory activities include Chinese New Feast, firecrackers, giving lucky money to children, the New Year bell ringing and Chinese New Year Greetings. Most of Chinese people will stop the celebrating in their home on the 7th day of New Year because the national holiday usually ends around that day, however celebrations in public areas can last until the 15th day of New Year.
It is the money given to kids from their parents and grandparents as New Year gift. The money is believed to bring good luck, ward off monsters; hence the name "lucky money". Parents and grandparents first put money in small, especially-made red envelopes and give the red envelopes to their kids after the New Year's Feast or when they come to visit them on the New Year. They choose to put the money in red envelopes because Chinese people think red is a lucky color. They want to give their children both lucky money and lucky color.
51.What can we learn from the Paragragh 1？
A.Chinese New Year Celebration is one of the most important celebrations in China of the year
B.Chinese New Year Celebration can bring luck to them during the next year
C.Some different celebrations still exist
D.Kids can get their lucky money during the Chinese New Year Celebration
52.Where can we meet some celebrations in the 13th day of the New Year in China？
A.Wal-Mart Stores B.Your uncle’s family
C.Yuanmingyuan Imperial Garden D.High school
53.Which way is not mentioned in the passage below to celebrate New Year？
A.Set off fireworks B.Come over relatives
C.Receive presents D.Get lucky money
54.Where can we probably find the passage？
A.A travel brochure B.A newspaper
C.A tradition guide D.A textbook
B
Since the first brain scanner was constructed several years ago，computed tomography or computed medical imagery, has become fairly widely used.Its rapid acceptance is due to the fact that it has overcome several of the drawbacks of conventional X-ray technology.
To begin with， Conventional two-dimensional X-ray pictures cannot show all of the information contained in a three-dimensional object.Things at different depths aresuper
Imposed，causing confusion to the viewer，computed tomography can give three-dimensional information.The computer is able to reconstruct pictures of the body’s interior by measuring the varying intensities of X-ray beams passing through sections of the body from hundreds of different angles.Such pictures are based on series of thin “slices”.
In addition, conventional X-ray generally differentiates only between bone and air as in the chest and lungs.They cannot distinguish soft tissues or variation in tissues.The liver and pancreas are not discernible at all，and certain other organs max only be rendered visible through the use of ratio paque dye.Since computed tomography is
much more sensitivethe soft tissues of the kidneys or the liver can be seen and
clearly differentiated.This technique can also accurately measure different degrees of X-ray absorption, facilitating the study of the nature of tissue.
A third problem with conventional X-ray methods is their inability to measure quantitatively the separate densities of the individual substances through which the X-ray has passed.Only the mean absorption of all the tissues is recorded.This is not a tumor and subsequently monitor the progress of radiation treatment，so that in addition to its
diagnostic capabilities, it can play a significant role in therapy.
55.Conventional C-rays mainly show the difference between
A.bone and air B.liver and pancreas
C.muscle and other body issues D.heart and lungs
56.It can be inferred from the passage that compared to conventional X-ray techniques，computed tomography is more
A.compact B.rapid C.economical D.informative
57.What is the author’s attitude toward this new technique？
A.Cautious B.Tolerant C.Enthusiastic D.Critical
58.According to the passage，computed tomography can be used for all of the following except
A.monitoring a patient’s disease B.diagnosing disorders
C.locating tumors D.reconstructing damaged issues
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