In the USA，each year，students take part in a kind of competition called the Science Olympiad．
It has a lot of different events．Students go there to show how much they know about the science of music，biology，chemistry and others．My best event is forestry．
The big day came at last!First，I went to watch the tower building competition．That's when students build small towers and put heavy things on top of it．They hope they can hold them up．One of my schoolmates was putting things on her tower．She was nervous，and in the end it was too heavy for her tower to hold it﹣﹣﹣it broke!I felt bad for her．
After lunch，I helped some teammates with their events．One was geography，and the other was history．I don't know much about those things，so I just watched my teammates do most of the work．
At last，it was time for my favorite event﹣﹣﹣﹣forestry．The rules were easy．We had to look at more than 40different kinds of leaves and find out which plants they were from．We also had to answer some questions about the uses of each leaf.1knew almost all of the leaves and could answer most of the questions．I had spent more than a month studying on the Internet to get ready．At the end，it was time for the awards（颁奖）．I was nervous，because the forestry awards were last．We won second place in the whole state!A nice man gave me a medal and smiled at me．
46．What is the Science Olympiad？
47．Is forestry the author's（作者的）best event？
48．Why did the author feel bad for the first event？
49．Where did the author prepare for his event？
50．Which prize did the author's team win，the second or the last？
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Most schools in England require children to wear a school uniform.
There are at least four advantages. Firstly, when they go on a school trip they all look the same and so they can’t get lost. Secondly, it stops kids worrying about what to wear each day. Everyone is equal. Thirdly, parents don’t have to shop for expensive and different clothes for their children to show off. Fourthly, wearing a uniform gives a sense of being proud and discipline(纪律约束) in them.What colour are the shoes that the English students wear in school?
| A．White | B．Grey | C．Black | D．Yellow |
Where can you find the school name?
| A．On the tie | B．On the sweater | C．On the shirt | D．On the skirt |
Which of the following is one of the advantages of wearing a uniform?
| A．It gives students a sense of being proud |
| B．It helps children show off |
| C．It helps children choose different clothes |
| D．It makes children strange |
Inventors are always looking for ways to make our lives easier, greener and more fun. Here are just a few examples of inventions.
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Crayons were invented by Edwin Binney and C. Harold Smith. They had a paint company in New York City. The new crayons were made of wax（蜡）and different pigments（颜料）. In 1903,Binney and Smith put the first box of eight“Crayola Crayons”on the market. These new crayons were a great success. |
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Remote control technology(遥控技术)has been used since the early 1930s. During World War1, Germans used remote control boats. The TV remote control was first put on the market in 1950. Zenith Radio Company created the first TV remote control, called the “lazy Bone”. It could turn the TV on and off and could change programs. |
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Bow Lingual（犬语翻译机），named by the US Time Magazine as a “BEST invention of 2002”， has two parts. A microphone is tied to the dog’s neck and sends out sound information to the gadget（小挂件）held by the owner. Then the translation is done in the gadget with kinds of dog barks. |
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Some students in South Korea have a new language teacher :an robot of English-teaching ：The robot is 157cm tall and speaks both Korea and English .It can make16 kinds of faces .The robot-teachers are helping to solve a shortage of English teachers there. Could robots replace human teachers one day? |
The first box of crayons was put on the market ________ .
| A．in 1900 | B．in 1903 | C．in 1950 | D．in 2002 |
During World War1, Germans used remote control to control _________ .
| A．trains | B．planes | C．boats | D．TVs |
_________ is one of the greatest inventions of 2002 according to the US Time Magazine.
| A．The crayon | B．Bow Lingual |
| C．The TV remote control | D．The English- teaching robot |
The English- teaching robot can speak ________ .
| A．English and Chinese | B．English and French |
| C．Korean and Japanese | D．English and Korean |
Which of the following is TRUE?
| A．Bow Lingual’s microphone is tied to the dog’s neck. |
| B．The English-teaching robot can make six faces in class. |
| C．Remote control technology has been used since early 1930. |
| D．The robot- teachers can help provide the USA with more English teachers. |
In today’s world many people seem to be hungry for money. Money does have its most useful effect on the poor. But once a person has a rich life, a lot more money doesn`t mean more happiness.
If money were everything, all millionaires(百万富翁) would have real love, true friendship, good health and a long life. However, this is not always true .But can love be bought ?I`m afraid not . Love means to give , not to take . To every person , health and long life are probably the most precious things . Well , can health and a long life be bought with money ? The answer is “No”.
Of all the longest living people in the world, few of them are millionaires. True friendship can’t be bought, either. In a word, where money is dreamed too much, it can cause brothers to quarrel, marriage to end, lovers to hate, and strangers to fight. No matter how much money you have, it is still not enough to make a happy person if you have no one to laugh with, no one to cry for.
根据材料内容选择最佳答案，并将其标号填入题前括号内。According to the passage , which of the following do you think is right ?
| A．Money is everything |
| B．Money isn`t necessary |
| C．Money is important , but not the most important |
| D．with no money ,with no success |
What are the most precious things for every person according to the writer`s ideas ?
| A．Only money | B．Health and a long life |
| C．Only friendship | D．A, Band C |
Which sentence of the following is true according to the passage ?
| A．If you haven`t much money , you can`t get more happiness |
| B．You may live a long life even if you are poor |
| C．Every year many people die in the world because their family is poor |
| D．If you are rich ,you`ll have less friendship |
In fact , few of millionaires _____________
| A．have much money | B．have the longest living |
| C．love their money | D．have true love |
what does the sentence “Love means to give , not to take ”mean in the passage ?
| A．爱意味着给你，而不能带走 | B．爱是可以得到的，不要走开 |
| C．爱意味着奉献，而不是索取 | D．爱是可以索取的， 而不必付出 |
A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off. she told him that she would bring him the water in ten minutes. thirty minutes later, when the passenger’s ring for service sounded, the air hostess flew in a hurry. she was kept so busy that she forgot to give him the water. As a result, the passenger was held up(延迟) to take his medicine. she hurried over to him with a cup of water, but he refused it.
In the following hours on the flight, each time the air hostess passed the passenger she would ask him with a smile whether he needed help or not. but the passenger never paid attention to her. when he was going to get off the plane, the passenger asked the air hostess to hand him the passengers’ brochure(小册子). she was very sad. she knew that he would write down sharp words, but with a smile she handed it to him. off the plane, she opened the brochure, and broke a smile, for the passenger wrote, “on the flight, you asked me whether I need help or not for twelve times in all. how can I refuse your twelve sincere smiles?” That’s right! who can refuse twelve sincere smiles from a person?What did the passenger need when the plane just took off ?
| A．brochure to write something |
| B．A cup of water to take his medicine |
| C．The air hostess to make an apologize |
| D．To get off the plane at once |
Why did the air hostess forget to give him the water ?
| A．ecause the passenger was angry |
| B．Because the passenger was very cruel |
| C．Because she was very busy |
| D．Because she was not friendly to the passenger |
Why was the air hostess very sad ?
| A．She thought the passenger would write down bad words |
| B．She thought she couldn`t give the passenger any help |
| C．She thought the passenger would tell her manager |
| D．She thought she should say sorry to the passenger again |
The Chinese meaning of the word “sincere”is ________
| A．自豪的 | B．婉转的 | C．真诚的 | D．委屈的 |
Do you think which is the best title for the passage ?
| A．The air hostess | B．A cup of water | C．Twelve smiles | D．On the plane |
WARNING: Holding a cell phone against your ear or putting it in your pocket may be bad for your health. 
This sentence is a warning that you’d better not put it close to you when a new phone is bought. Apple company, for example, doesn't want IPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry's producer, recommends 2.5 centimeters.
(1)If cell phone use can health problems, the will be very serious. Americans spend 2.26 trillion minutes chatting on cell phones every year, which brings $109 billion for the wireless businessmen.
Devra Davis, an epidemiologist(皮肤病专家) who has worked for the University of Pittsburgh, has published a book about mobile phone radiation（辐射）"Disconnect." Davis studies how often brain cancer happens during different age groups. She finds a big increase in brain cancer in the 20-to-29 age group and a drop for the older people.
Children are more easily hurt by radiation than grown-ups, Ms. Davis and other scientists point out. But no studies have yet been finished on cell phone radiation and children, she says.
Henry Lai, a research professor, began lab radiation studies in 1980 and found that mice exposed to(暴露在) radiofrequency（电波频率）radiation had destroyed DNA in their brains.
Ms. Davis recommends using wired earphones（有线耳机）or the phone's speaker. (2)Children should send text messages rather than call, she said, and pregnant（怀孕的） women should keep phones away from their bodies.在（1）句空白处填入适当的词使句意完整、上下文通顺。
将（2）句翻译成中文。
回答问题：What kind of people with brain cancer are getting more and more?
找出同义句。
Scientists are still carrying on with the studies on cell phone radiation and children找出或写出该短文的主题句。
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