2017高考英语一轮总复习-第一部分-教材知识梳理-Unit-2-Cloning练习-新人教版选修8.doc
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1、 . . . . Unit 2Cloning(60分钟81分)Part A一、阅读理解(共8小题;每小题2分,满分16分)AWhen Jeff Sparkman draws his cartoon superheroes with colored pencils,he often has to ask other people to tell him what color his masked men turned out to be because hes color-blind.Now,a new smart phone application(app) can help him figu
2、re out what colors hes using and how the picture looks to most everyone else.The DanKam app,available for iPhone and Android for $2.99,is an application that turns the vague colors that one percent of the population with color-blindness sees into the “true” colors as everyone else sees them.In Ameri
3、ca,an estimated 32 million color-blind Americans95% are malescan soon have their life improved.“DanKam takes the stream of data coming in through the phones camera and changes the colors slightly so they fall within the range that people who are color-blind see,” developer Dan Kaminsky told CNET.He
4、came up with the idea after watching the 2009 film StarTrek with a color-blind friend.It was then that he got to know more about colorblindness like its varying types and degrees.A vast majority,for instance,have trouble seeing red or green due to a genetic defect(遗传缺陷).Blue-yellow colorblindness,ho
5、wever,is rarer and develops later in life because of aging,illness or head injuries,etc.He started experimenting with one of the most common representations of points in the RGB color model.What the DanKam app attempts to do is to clean up the color space of the image or video signal so that colors
6、can be visible to those suffering from viewing problems.“You can adjust the app to fit your needs.There is a range and not everyone who is color-blind sees things the same.” Says Kaminsky.Sparkman,a copy editor at CNET,tried out the app and was pleased with the results.“It would be useful for dressi
7、ng for a job interview,” he said.But using it for his art is “the most practical application”.It worked well on LED and other lights on electronic gadgets(装置),which means Sparkman can now identify the power light on his computer display as green.(2015七校联考)1.According to the first two paragraphs,we c
8、an know that DanKam .A.appeared in the movie StarTrekB.can turn vague colors into real onesC.is a phone used to help draw picturesD.is designed to help people with colorblindness2.How does DanKam app work?A.It puts LED and other lights on electronic gadgets.B.It changes the colors so that color-blin
9、d people can see them.C.It checks color-blind peoples types and degrees of colorblindness.D.It shows one of the most common representations of points in the RGB color model.3.It can be inferred from the passage that colorblindness .A.cannot be cured by any methodsB.is more commonly seen in womenC.is
10、 not necessarily inborn diseaseD.makes people unable to tell any colors4.The underlined word “visible” in Paragraph 4 is closest in meaning to .A.portableB.enjoyableC.adjustableD.recognizable文章大意本文是一篇科普说明文,介绍了DanKam 这款能够帮助色盲人士辨别颜色的手机应用程序。1.D细节理解题。根据第二段第一句可知DanKam是一款帮助色盲人士辨别颜色的手机应用程序,应选D项。2.B细节理解题。根据
11、第三段第一句可知,DanKam软件通过微调颜色使之符合色盲人士的视觉区域,帮他们辨别颜色。3.C推理判断题。由第四段第三句“Blue-yellow colorblindness,however,is rarer and develops later in life because of aging,illness or head injuries,etc.”可知,蓝黄色盲可能是由外因引起的,因此色盲并不一定是一种天生的疾病。4.D词义推测题。划线词所在句解释了DanKam软件的工作原理:通过清除图片或录像信号中的颜色空间使色盲人士也能看见各种颜色。因此visible意为“看得见的”。B“Pla
12、nts were supposed to grow larger with increased carbon dioxide in the atmosphere,but changes in temperature,humidity and nutrient availability seem to have trumped the benefits of increased carbon dioxide,”said researchers from the National University of Singapore.45 percent of the species studied n
13、ow reach smaller adult sizes than they did in the past.The researchers point out that warmer temperatures and changing habitats,caused by climate change,are possible reasons for the shrinking of creatures.“We do not yet know the exact mechanisms involved,or why some organisms are getting smaller whi
14、le others are unaffected,” the researchers said.“Until we understand more,we could be risking negative consequences that we cant yet quantify.”The change was big in cold-blooded animals.Only two decades of warmer temperatures were enough to make reptiles (爬行动物) smaller.An increase of only 1 caused n
15、early a 10 percent increase in metabolism (新代).Greater use of energy resulted in tiny tortoises and little lizards.Fish are smaller now too.Though overfishing has played a part in reducing numbers,experiments show that warmer temperatures also stop fish growth.There is a recent report on warmer temp
16、eratures negative effects on plankton (浮游生物),the base of the marine ecosystem.Warm-blooded animals werent immune from the size change caused by climate change.Many birds are now smaller.Mammals have been miniaturized too.Soay sheep are thinner.Red deer are weaker.And polar bears are smaller,compared
17、 with historical records.This isnt the first time this has happened in Earths history.55 million years ago,a warming event similar to the current climate change caused bees,spiders and ants to shrink by 50 to 75 percent over several thousand years.That event happened over a longer time than the curr
18、ent climate change.The speed of modern climate change could mean organisms may not respond or adapt quickly enough,especially those with long generation times.So,it is likely that more negative influences of climate change will be shown in the future.1.Which of the following would be the best title
19、for the passage?A.Why do some species become smaller?B.Species become smaller as climate warms.C.Climate change has many negative effects.D.How does climate change in Earths history?2.The underlined word “trumped” in the first paragraph can be replaced by “”.A.beatenB.increasedC.strengthenedD.equale
20、d3.Researchers from the National University of Singapore believe that .A.climate change has more negative effects on warm-blooded animalsB.all the animals on the Earth have become smallerC.too many studies on animals sizes have been doneD.how climate change affects animals sizes has not been found c
21、learly4.What is the authors attitude toward climate change?A.Optimistic.B.Concerned.C.Indifferent.D.Confident.文章大意本文是一篇科普说明文,介绍了全球气候变暖导致的物种体型变小的现象。1.B主旨大意题。通读全文可知,第二段点明主题,即全球变暖导致物种变小。2.A词义推测题。根据前面的转折连词but可以判断,此处指气候变暖所带来的影响弊大于利,故A项最符合语境。3.D细节理解题。根据第三段第一句 “We do not yet know the exact mechanisms invol
22、ved,or why some organisms are getting smaller while others are unaffected, the researchers said.”可知,研究者们尚不了解物种变小的具体原因。4.B观点态度题。根据最后一段中的“So,it is likely that more negative influences of climate change will be shown in the future.”可知作者对气候变暖带来的负面影响持担忧的态度。二、语法填空(共10小题;每小题1.5分,满分15分)A man looking at his
23、smartphone while walking across a railway crossing in Nanjing 1.(have) a close knock on October 22.He was so 2.(absorb) in his smartphone that he didnt see a train approaching until it brushed past him,3.(throw) him to the ground.This should serve 4. a warning that people should be aware of their su
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