CDMA is " spread spectrum (频谱) " technology, which means that it spreads the information contained in a particular signal of interest over a much greater bandwidth (带宽) than the original signal.

    When implemented (实现) in a cellular telephone system, CDMA offers numerous benefits to the cellular operators and their subscribers (订户). Following is an overview of CDMA benefits:

    1. Improved call quality, with better and more consistent sound.

    2. Simplified system planning through the use of the same frequency in every sector of every cell.

    3. Increased talk time for portables.

    4. Bandwidth on demand.

    Compared with GSM ( Global System for Mobile communication ), which was developed mainly in Europe, the CDMA system matured (成熟) later and has better efficiency, low radiation, high voice quality and ability to adopt third-generation communications technology.

    China, Indonesia, Japan, South Korea and now India will make up the major market for CDMA technology in addition to the United States, the Republic of Korea, Japan and Australia to  ensure that CDMA users can receive phone calls from overseas.

 56. Which of the following statements is TRUE?

     A. CDMA has a clearer and higher sound than GSM.

     B. You will not hear a better and more consistent sound if you don't use CDMA.

     C. CDMA has the ability to adopt third-generation communications technology.

     D. The original signal cannot satisfy the demand for bandwidth.

 57. Which of the following statements is NOT true?

     A. CDMA has low radiation and high voice quality.

     B. CDMA can help you to have a long-time talk.

     C. China and some Asian countries will have a large market for CDMA technology in future.

      D. It's much simpler to use CDMA than GSM.

58. What is the main idea of this passage?

     A. Compared with GSM, CDMA has more benefits.

     B. Some information on CDMA and its advantages.

     C. CDMA will probably take the place of GSM some day.

D. CDMA is more effective and healthy.

       Few of us haven't read Cinderella, the story of a young woman living in poverty who meets the prince of her dreams, Some might not want to admit it, but there is a hidden Cinderella in everyone's heart—we all wish we could achieve recognition or success after a period of obscurity(默默无闻) or neglect.

       Mary Santiago has that secret dream, too.Her story is featured in Another Cinderella Story, a film set in a US high Mary is shy but loves to dance.Compared with other girls, she is invisible.However, her world changes completely when a famous teenage pop singer, Joey Parker, appears.

       Joey is everything the rest of the boys in her class are not—kind, handsome and desirable.Mary and Joey's paths cross at a ball.They meet and falHn love with each other.But when Mary has to.rush back home, she leaves behind her MP3 player, which becomes the only clue Joey has to find the girl of his dreams.Of course, there is a wicked(邪恶的) stepmother, who turns out to be Dominique Blatt and she takes in Mary after her dancer mother dies.Dominique treats Mary like a maid and does everything she can to make sure Mary doesn't get into the top dance school.Her two daughters are equally determined to stop Joey falling for Mary, even if that means embarrassing her.

       The story, though it mostly follows Cinderella, does add a few modem day twists to the classic fairy tale.Refreshingly, the film, unlike many high school films, does not focus on looks, although the actors are all beautiful.There is also a lot less materialism in Another Cinderella Story than in many similar movies.

       "The movie takes the Cinderella fairytale as its jumping off point," writes movie critic Amber Wilkinson."The focus is firmly on following your dream."

The first paragraph is mainly to _____.

       A.build interest and lead us to Mary's secret dream

       B.remind us why Cinderella is popular all the years

       C.inform us of the main topic of the whole passage

       D.tell us how interesting the fairy tale Cinderella is

In the movie, Mary Santiago is the main character who      .

       A.is brave in expressing her iove

       B.is attended badly by the stepmother

       C.has a dream of meeting a prince

       D.is embarrassed by the pop singer

What can we infer from the passage?

       A.Joey is just like other boys in Mary's class.

       B.Mary's mother influences her a lot m singing.

       C.Not many people have a dream to be realized.

       D.The MP3 player helps Joey in finding Mary.

The passage is mainly _____.

       A.an introduction to a film 

       B.a review about a film

       C.an essay about dreams        

      D.an advertisement of Cinderella

According to the passage.Another Cinderella Story _____.

       A.follows Cinderella with nothing new

       B.pays more attention to the looks of the actors

       C.encourages young people to follow their dreams

       D.focuses more on materialism than other films

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