完形填空

　　How many dolls(洋娃娃)can you stuff(塞)into a spare room? The 　　1　　

2,300-comes from Gali Little and Katie Banman, both 11, and Katie’s 9-year-old sister, Sarah．They know 　　2　　 they just did it．

　　The girls weren’t trying to 　　3　　 it into the Guinness(吉尼斯)Book of World Records．They want to 　　4　　 children who lost so 　　5　　 during hurricanes(飓风)Katrina and Rita．

　　“My mom and I were 　　6　　 the news and I saw a lot of children, and 　　7　　 of them had amy possessions(私人物品)…I thought they might 　　8　　 a doll to hold onto and tell secrets to,”Gali said．

　　Gali 　　9　　 her idea of collectin dolls with Katie and Sarah, who are friends as well as neighbors, and the project was 　　10　　 way．The girls start their 　　11　　 at their schools first．They also collected 　　12　　 in their neighborhood．

　　The girls were very 　　13　　 with their success．“I thought we would get only about 100 dolls．”Sarah said．

　　When the three-week 　　14　　 time is over, the dolls are shipped to a charity group．It will then 　　15　　 the dolls to children still in shelters(庇护所)in hurricane-hit areas．

　　　　16　　 do the girls feel about kids having new 　　17　　 friends to hold onto because of their actions?“Proud,”the three said with one 　　18　　．

　　This story has a 　　19　　 ending in more than one way．Not only will thousands of kids be getting new dolls, but Gali’s mom now also has her spare 　　20　　 back．

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　　Throughout history soldiers have fought bloody battles inorder to control the high ground．There is no doubt that thisis a tactical（战术的）necessity．Standing abouve your enemy isan advantage that often leads to vietory．

　　Nowadays，high ground does not just mean hill tops．Italso means space,which has become an increasingly importantpart of military strategy（军事战略）．

　　With its more advanced satellite technologies,America isthe major power in space．And now the US Air Force has putinto service a new weapon designed to jam enemy satellite communications．It is an important step toward US control of space．

　　The so-called Counter Communications System（反卫星通信系统）was declared operational on November 1．The ground-based system uses electromagnetic radio frequencites（无线电磁波）to stop enemy satellites working on a shortterm basis．

　　“A short-term effect ensures that during the time of need,the enemy's space-based capability（能力）is reduced,”said a US military official．“Following the time of need，their capabilities can return to its original state．”

　　The system is made up of an antenna（天线）,transmitters（发射机）and receivers and can be easily transported around in a vehicle．

　　To control space was one of four aims of a national space policy started by former president Bill Clinton in 1996．The goal is to make sure US forces can rely on space-based services and to deny an enemy any similar benefits．

　　The US military has experimented with several“anti-sat-ellie”weapons,including lasers,to destroy or damageenemy units．

　　Theresa Hitchens,vice president of the Centre for Defence Information in Washington,welcomed the new systemas long as it does not create rubbish that could threaten globaluse of space．She believed it should not destroy satellties．only stop them working for a while．

　　“Unfortunately，it seems we are not going to limit ourgoal for‘space control’to non-violent systems,”she said，rai sing the danger of a space arms race．

　　To change the balance of power in space the EU and China are working together on the Galieo project．By 2008 the system will be in place as an alternative to the Americans'global positioning service．

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阅读理解

　　Do you suppose Darwin, one of the greatest scientists of all time, really did fool's experiments? Or did he do experiments that were so simple and basic that other people just thought they were foolish?

　　Sometimes, people think they already know the answer to a question or the solution(解决办法)to a problem．Sometimes, they really do know an answer or a solution, but without thinking they are important．

　　Charles Darwin didn't settle for(满足于)just thinking he knew something．And he believed all things could be important however simple they seemed to be．

　　Suppose you drop sheets of paper that are of exactly the same size and shapes．If you drop them at the same time in the same place, they will fall in the same way．Now make one of the sheets of paper into a tight(紧的)little ball and let it drop along with the other sheets．What happens? You have done an experiment that is so simple that you might think it couldn't be worth anything．

　　But this simple experiment is important．It explains part of our present day understandings of physics, ideas that were worked out long age by Galileo and Newton．And these understandings set aside some of ancient Greek physics．

　　Scientist sometimes stops to look at very simple things and to think very hard about them．Even the simplest idea, which we might think is foolish, can shake the foundations of science．

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