【创新设计】（广东专用）高中英语 Unit 4 Cyberspace Period One Warm up and Lesson 1 Tomorrows World课时精练 北师大版必修2(1).doc

unit 4 cyberspace period one warm-up and lesson 1tomorrows world 课时精练（北师大版必修2，广东专用）时间：40分钟.完形填空阅读下面短文，掌握其大意，然后从115各题所给的a、b、c和d项中，选出最佳选项。is the common nature of cancer worldwide purely a manmade phenomenon? that is what some researchers now suggest.cancer is a _1_ cause of death worldwide these days, however, scientists have only found one _2_ of the disease in investigations of hundreds of egyptian mummies(木乃伊), _3_ rosalie david of the university of manchester in england said in a statement.“this might be related to the wide _4_of carcinogens(致癌物)in modern societies，” write rosalie david and michael zimmermann of villanova university, pennsylvania. cancers are “limited to societies that are affected by _5_ lifestyle issues, such as tobacco use and pollution _6_ industrialization”in a review of published _7_of tens of thousands of ancient skeletons(骷髅)and hundreds of mummies, david and zimmermann found only a handful of cases of cancer. one recent finding of cancer was _8_ as the first ever discovered in a mummy. they also examined _9_texts and literature from egypt and greece, and said that theres little _10_ that cancer was a common disease.a quote from david _11_ by the university of manchester says：“there is nothing in the natural environment that can cause cancer. so it has to be a _12_ disease, down to pollution and changes to our diet and lifestyle.”still, other specialists in cancer and in human fossils strongly _13_ this view.“cancer is very rare in modern societies in humans under age 30，” said oncologist john glaspy at uclas jonsson comprehensive cancer center. “in ancient times, people rarely _14_ much older than that. so cancer was _15_. the problem of modern societies is having people live much older.”【解题导语】 本文主要讲述了科学家对癌症的新发现，认为癌症不是自然就有的，而是人为造成的，但有些科学家对这一观点持怀疑态度。【重点词语】in investigations of 在的调查当中diet and lifestyle饮食习惯和生活方式human fossils人类化石1apossible bleadingcfuture dpopular答案b文章是在讲述科学家的新发现，cancer是现代社会一个主要(leading)死因，而它在古代却是少见的。popular有“大众化的，流行的”的意思，偏向于修饰褒义的事物。2a.reason btypeccase dcategory答案c这里是指某一案例，事件，case符合语境。3a.researcher bdentistcphotographer ddetective答案a这里要理解rosalie david of the university of manchester的身份，从上下文看，他是研究人员，故a项符合语境。4a.use bspreadcdigestion dstudy答案b从句子的意思来判断这里是指现代癌症病例的增多跟致癌物的传播有关，故b项符合语境。5a.unusual buniquecfashionable dmodern答案d这里是指癌症的增多，跟现代的生活方式有关，d项符合语境。6a.resulting in bproduced bycresulting from dproduced in答案c污染是现代工业生产导致的，而不是由现代工业生产出来的，a项的意思相反，b、d项的意思不符合语境。7a.magazines banalysescissues dsamples答案b此处是指通过发表了的研究分析来得出结论，b项符合语境8a.doubted bdeniedcagreed didentified答案d结合上下文可知，此处是说它被确认为(identify)古代因癌症死亡的第一案例。9a.ancient bspecialccomplete dvaluable答案a从上下文理解，这里是指研究了关于埃及、希腊的古代文本、文献。a项符合语境。10a.value bnewscdescription dsign答案d通过调查、分析、没有多少迹象(sign)表明癌症在古代是一种常见病。11a.proved out bwritten downcput out dtaken down答案c这里指由大学公开了研究人员的结论，只有c项有“发表，提出；展示”的意思，故c项符合语境。12a.manmade blongexistedcspeciallydesigned dnewlyinvented答案a癌症不是自然就有的，而是人为造成的，a项符合语境。13a.agree with bbelieve incinterest in ddoubt about答案d从本段开头的still和接下来john glaspy所说的话可以看出，有些专家怀疑这个观点。14a.worked blivedcstudied dsurvived答案b从上下文可以看出，古代人的寿命很少超过30岁，b项符合语境。15a.common bterrificcrare dthreatening答案c从上文可以看出，古代极少有人的寿命会超过30岁，癌症很少出现。.阅读理解one way to clean space might be through a large space net, like a huge fishing net to catch all the litter floating around the earth. its not science fiction(科幻小说). a japanese company is looking into developing a satellite that would then throw out a net made by nitto seimo co, which makes fishing nets.it would form around the litter and draw it back towards the earth, and the litter would burn up in the planets atmosphere.the idea of a net is because that would catch the smallest pieces of the space litter which could make holes in satellites, spacecrafts or other expensive equipment.whats surprising is that there are so many people that dont think there is a problem with space litter, especiallysince billions and billions of dollars worth of valuable equipment has to travel around the litter clouds every day.another similar net idea is being developed by the defense advanced research projects agency (darpa). theyre developing a space garbage collecting vehicle that would be armed with 200 special nets to collect the space litter. called the electrodynamic debris eliminator, or edde, it was created by star inc. it would fly in low earth orbit and pick up litter as it traveled. its said that it could pick up over 2，000 pieces of litter in seven years. star says they could do a first test run of the edde as soon as 2013.all in all the main problem in getting rid of all space litter is likely money. cleaning it all up will be very expensive for sure. however, something needs to be done and the sooner, the better.16why does the author mention a fishing net in paragraph 1?ato introduce the topic.bto explain the use of a fishing net.cto help us understand how the space net works.dto show the differences between a fishing net and a space net.解析推理判断题。根据第一段第一句中表示“像”的like以及下文中对太空垃圾处理网的介绍可推知，作者提到渔网是为了方便读者进行类比，从而帮助读者了解太空垃圾处理网是如何运作的。答案c17the author thinks it is surprising that_athere is so much litter in spacebsuch a net can be used to clean spacecspace litter can do damage to satellitesdmany people dont regard space litter as a problem解析细节理解题。根据第三段第一句可知，作者认为令人吃惊的是很多人并不觉得太空垃圾是个问题。答案d18according to the passage, edde_acan collect 2，000 pieces of litter per yearbwill be sent into space in the near futurecis an organization that deals with space litterdis the name of a net made by nitto seimo co解析细节理解题。根据第四段最后一句可知，edde将会在2013年(不久的将来)进入太空收集垃圾。根据第四段倒数第二句可知，a项中的per year错误；根据第四段第二、三句可知，edde是一个收集太空垃圾的机器的名字，且它是由star inc研制的，故排除c、d两项。答案b19what is the main problem concerned with cleaning space?athe cleaning will be expensive.bwe havent found an excellent method.cwe may damage the expensive equipment.dit is not worth the huge cost to clean space.解析细节理解题。根据最后一段前两句可知，处理太空垃圾一个主要问题是费用问题，这一清理工作需要花很多钱。答案a20which of the following will the author agree with?ait is not difficult at all to deal with space litter.bwe should limit the use of expensive equipment.cit is necessary to clean space litter as soon as possible.dgarbage collecting vehicles should be widely used in our daily life.解析推理判断题。根据最后一段最后一句可推知，作者认为有必要尽快处理太空垃圾。答案c.信息匹配信息匹配：阅读下列应用文及相关信息，并按照要求匹配信息。以下是一些书籍的简介：athe doggy dung disaster & other true stories, by garth sundemthis collection of tales about real kids doing amazing things is inspiring.there are stories about kids overcoming challenges, using their talents and creativity, standing up for themselves and helping others.bthe brainiest, insaniest ultimate puzzle book, workman publishingthis collection just cries out for a rainy day or a long plane ride.with page after page of unusual and fun activities, youll find that a pencil is all you need to while away the hours.there are mazes and brainteasers, word searches and picture finds.cyou gotta be kidding！by randy hornwould you rather swallow a handful of live tadpoles or eat a whole dead frog？once youve read a few of these “choices, ”youll understand the title.the idea is to look at the shocking, ridiculous“would you rather”questions and actually pick one.this is bound to create lots of laughs and even some serious conversation.dthe thirteenth tale by diane setterfieldsettle down to enjoy diane setterfields debut novel.this is a rich story about secrets, ghosts, winter, books and family.with much of the action taking place in libraries and bookstores，the story is interesting, imaginative and exciting.e101 places you gotta see before youre 12！by joanne osullivanlooking for something to do？this book is a good list to have around.its full of fun suggestions that would entertain anyone under or over the age of 12.with pictures and background for each suggestion, youll find some great ideas to explore the world around you.foh, yikes！historys grossest, wackiest moments, by joy masoffthis book includes sections on subjects such as ancient medicine and the travels of lewis and clark.you will find lots of facts to amaze your friends, teachers and parents in chapters that include“nutty napoleon”and“the weird things people will put on their feet.”以下是五位学生的个人信息，请匹配学生与适合他们的书籍：21isabel loves to entertain her classmates.she has a natural sense of comedy and always comes up with questions and statements that challenge her classmates to think and laugh hard.one day, for example, she suggested that students and teachers trade places for a whole school day.答案cc项“look at the shocking, ridiculous“would you rather”questions” “create lots of laughs”与题中“always comes up with questions and statements that challenge her classmates to think and laugh hard”与相对应。22derrick lives far away from school.to get to school, he has to ride a bus for more than one hour twice a day.fortunately, he enjoys spending this time testing his mental powers.he especially likes riddles, puzzles, crosswords and any game that can be done with only his quick mind and a pencil or pen.答案bb项中“there are mazes and brainteasers, word searches and picture finds”与derrick的喜好“he especially likes riddles, puzzles, crosswords.”相对应。23laura is a bookworm and spends long hours reading books about past times.that is probably why she knows so much about the past.she keeps a journal of interesting facts she learns to share with her friends and teachers.a recent entry described life