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2014高考英语阅读理解精英系列练习题(20)及答案【广东省广州市2013综合测试(2)】d expensive perfumes (香水) come in tiny bottles, but many hide a whale-sized secret. to perfect a particular smell, perfume-makers often use an ingredient that comes from sperm whales, called ambergris. but using ambergris, which helps a perfume last longer, is strongly opposed by many people who think it is wrong to kill whales just so we can smell sweet. joerg bohlmann is neither a perfumer nor a whale expert. hes a plant biologist at the university of british columbia in canada. but his discovery of a new plant gene (基因) might push whales out of the perfume business. the gene comes from fir trees, found throughout north america and commonly used as christmas trees. the trees produce a chemical that can be used in perfume in place of ambergris but with a catch. theres a problem that many people wouldnt consider. in the tree, the chemical is mixed with many others. that makes separation a challenge, bohlmann says. its like trying to isolate sugar from a biscuit. this is where science becomes useful. when bohlmann learned that fir trees produce the ambergris-like chemical, he decided to use his gene know-how to find the instructions for how to make the ambergris-substitute. bohlmann found that gene and took it out of the tree cells. then he did something that might sound strange to someone who doesnt work in genetics: bohlmann put the gene from the tree into yeast (酵母) cells. yeast may sound familiar because its used to make things like bread, wine and beer. biologists like to work with yeast because it easily adopts new genes and changes its features and behaviour. when bohlmann put the fir tree gene into the yeast, the yeast started making the same chemical that had been produced by the tree. perfumers pay big money for ambergris because it is a fixative, which means it holds a smell in place on a persons body. cheap perfumes smell good in the first hour or so and then everything is gone, explains bohlmann. but expensive perfumes are much more stable. their smell lasts much longer, for hours or even a day after you apply them. the new chemical, made from the tree genes, can be used as a fixative, too. and using yeast to make it is far cheaper than acquiring ambergris. bohlmann admits he never thought hed get into the perfume business. but now, he says, producers have been calling to find out how to use his technology in new perfumes.41. it can be inferred from the passage that if a perfume contains ambergris, a. its user probably supports whale hunting b. its smell will last for about an hour c. there will be a whale symbol on the bottle d. it is probably very expensive42. the underlined expression with a catch in paragraph 3 means a. being difficult to hold b. having a hidden problem c. needing further testing d. being too similar43. according to the passage, why are yeast cells often used in genetic research? a. they can take on the characteristics of other genes. b. they can reproduce much faster than other cells. c. they share some of the qualities of plant genes. d. theyre much cheaper to use than ambergris.44. what can we learn about joerg bohlmann from the passage? a. he is opposed to whale hunting. b. he made his discovery during christmas. c. he has worked in the perfume industry for many years. d. he has previously done genetic research.45. what is the best title for the passage? a. the christmas trees secret b. the sweet smell of success c. whale-free perfume d. save the whale【参考答案】41. d 42. b 43. a 44. d 45. c阅读理解plants are very important living things. life could not go if there were no plants. this is because plants can make food from air, water and sunlight. animals and man cannot make food from air, water and sunlight. animals get their food by eating plants and other animals. so animals and man need plants in order to live. this is why we find that there are so many plants around us.if you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering plants.flowering plants can make seeds. the seeds are protected by the fruits. some fruits have one seed, some have two, three or four, and some have many seeds. but a few fruits have no seeds at all. an example of a fruit without seeds is the banana fruit.most non-flowering plants dont grow from seeds. they grow from spores. spores are so small and light that they can float in the air. we may say that spores are quite the same as the seeds. when these spores fall on wet and shady places, they usually grow into new plants.50. the main idea of the passage is that _.a. plants are important for life b. plants cannot grow without airc. there are many plants around us d. we cannot live without water51. which of the following is not true?a. plants can be divided into main types: flowering plants and non-flowering plants.b. all fruits have seeds in themc. seeds are protected by the fruits.d. some plants grow from spores.52. the word “non-flowering ” in this passage means _. a. 开花的 b. 有花的 c. 多花的 d. 不开花的53. in “shady” place there is _. a. a lot of sunshine b. a lot of water c. no water d. little sunshine参考答案-5053、 abddis it time to get mp3?your computer has been playing music for years, one cd at a time. now hundreds of songs can be stored in your pc (personal computer) if theyre in the mp3 format.what is it?mp3 compresses music into small computer friendly files. you access mp3 music several ways : music can be downloaded from websites that have converted vast music libraries into mp3. or you can prerecord cds into your pc and convert songs in minutes into mp3. once mp3 music is on your pcs hard drive, you can play it through your computers speakers, “burn” it onto blank cds or exchange mp3 files with friends using e-mail.how much?software needed to play and convert mp3 music is often free. it comes preinstalled on most new computers or can be downloaded from many websites, including mp3. com. some mp3 sites are free. just type “mp3 sites” into any search engine. the popular mp3 players start at around $50and can hold hundreds of songs. a blank cd on which you can record music costs about a dollar.advantagesmp3 turns your home pc into a tape recorder. tiny mp3 players are the size of a card, making it easy to take hundreds of songs with you. disadvantagesyou may find that music at many sites is limited. and some only allow you to listen rather than download offerings. others let you download music that then cant be copied to mp3 players. and a growing number of new cds make it impossible to copy songs to a computer.46. how can you get mp3 music?a. by turning your home pc into a tape recorder b. by taking your own music or songs with youc. by copying songs to a pc through the speakers.d. by downloading from websites which have converted music libraries into mp3.47. which is not true to the passage?a. software needed to play and convert mp3 music is often free of charge.b. mp3 music can be with friends by e-mail.c. mp3 music can be downloaded for free at any site.d. a greater number of new cds make it possible to copy songs to a computer.48.the underlined word “burn” probably means_.a. fire b. change c. download d. play49. how much will you pay for a mp3 player?a. free of charge. b. free downloading. c. at least fifty dollars. d. about a dollar.参考答案-46-49、 dcbc阅读(共两节,满分50分)第一节 阅读理解(共20小题;每小题2分,满分40分)阅读下列短文,从每题所给的a、b、c和d项中,选出最佳选项,并在答题卡上将该项涂黑。【广东省汕头市2013二模】agreen invaders are taking over america.not invaders from space,but plants!you might not think of plants as dangerous,but in this case they are threatening natures delicate food chain.the invaders are plants brought here from other countries to make gardens and yards look pretty.ever since people started to arrive on americas shores,they have carried along trees,flowers,and vegetables from other places.now there are so many of those plants,they are crowding out the native plants that have lived here since before human settlers arrived.and thats a problem,says dr.doug tallamy.hes insect expert at the university of delaware.he explains that almost all the plant-eating insects in the united states are specialized,which means they eat only certain plants.monarch butterfly caterpillars(幼虫),for example,dine on milkweed.if people cut down milkweed and replace it with another plant,the butterflies will not have the food source that they need to survive.but the trouble doesnt stop there.when insects cant get the right plants to eat and they die off,then the birds dont have enough bugs for their meals.tallamy points out that almost all migrating birds depend on insets to feed their young.“we cannot let the plants and animals around us disappear.”says tallamy,“the way to preserve them is to give them food to eat. but when we plant non-native plants,we are clobbering the food chain,because then we dont have the insects the birds need to live.”fewer of the right plants mean fewer bugs,and fewer bugs mean fewer birds.and thats bad for the earth,because we need a variety of living things to keep the planet healthy and beautiful.the good news is,garden centers sell native plants.“just google native plantsand your location,and you can find out which plants really belong where you live,”says tallamy26. how did green invades arrive at america?27. they fell down from space.28. they floated to the americas shores.29. they were brought in from foreign countries30. they has lived here since human settlers arriveda. according to dr.tallamy,which of the followings about the insects in the us is not true?40. almost all the plant-eating insects in a place eat certain plants.41. monarch butterfly caterpillars cant survive without milkweed.42. if insects cant eat the right plants,they will find another one.43. the insects death will greatly affect the migrating birdssurvival35. the underlined word“clobber”in paragraph 5 is closest in meaning to _.a. protect b.damage c.create d.collect38. we can know whether a plant is native by _.a. googling on the internet b.asking dr.doug tallamyc.looking up in books d.searching in garden a. what is the best title of the pass age?45. green invaderslocal living things b.green invadersdangerous food chainc.green invadersenvironmental protectors d.green invadesthreat to local nature【参考答案】26-30. ccbad; 【广东省珠海市2013综合试题(2)】 dthe scottish countryside will soon be home to creatures which are strange to britain. this spring, 17 beavers will be released into a remote area of rivers and forests. hunted to die out throughout europe, beavers havent roamed in britains wilderness for almost 500 years. ecologists would like to invite back other long-lost animals to help recover the natural balance. to save the countrys plants from deer, which have doubled to 2 million since the start of this decade, an oxford university biologist late last year called for introducing the lynx(猞猁) that died out in britain 1,300 years ago. nature has long been a popular cause in europe. british people love their countryside of fences and fields, and the germans love their hiking forests. but in recent years people have set their sights on the more distant past, when europes forests were filled with elephants, rhinoceroses and big cats. some people are even now advocating a return to the way of wilderness that dates back to the pleistocene era, more than 11,000 years ago.nobody is advocating allowing elephants and lions to run crazily in big cities. but supporters would give free control to a long list of small mammals, including the beaver and lynx, which some people fear could be dangerous. some landowners are worried at the thought of beavers cutting down trees and possible floods; the scottish parliament refused several earlier efforts to introduce the mammal. proposals to set wolves and bears free in britain have also met with opposition.although the beavers and the lynxes were popular in europe thousands of years ago, no one is sure what effect they would have on ecosystems now. “the idea of bringing back big animals is interesting, but when you take it seriously, there are a lot of questions,” say some biologists. for example, elephants could destroy what little forest and grassland europe has left.the beavers of tierra del fuego provide a lesson. when a failed commercial fur farm released its few remaining beavers into the wild 60 years ago, the population exploded, and are still harming the local people. is this britains future? supporters say no, the beaver will fit right in. destroying nature is not a job for the wild.41. the underlined word “roamed” most probably means a. walked b. released c. developed d. exploded42. why did the oxford university biologist call for introducing the lynx? a. because the lynx died out in britain 1,300 years ago. b. because the lynx can prevent the plants from being destroyed by deer. c. because there are too many deer in britain. d. because the biologist wanted to invite back the long-lost species.43. what can we learn from para.3? a. not all the people support setting loose wild animals in britain.b. some small mammals will be out of control in britain.c. the landowners dont like beavers because of the possible disasters. d. british parliament has proposed several times to bring beavers back.44. what is the opinion of the biologists about bringing back the mammals?a. they consider bringing them back to be fantastic.b. they think bringing them back is no easy task. c. they know for sure the result of bringing them back.d. they think the mammals will destroy the ecosystem.45. what can be inferred from the passage?a. beavers are the most useful mammals to the balance of britain.b. lynxes may get more freedom in britain than tigers do.c. the ecosystem in britain doesnt need any changes.d. beavers released in britain will destroy nature.【参考答案】41-45 abcbb 阅读理解tokyo: the worlds oldest man, retired japanese silkworm breeder yukichi chuganji, died in his home at the age of 114, on monday. family members found him dead on his mattress. born on march 23, 1889, chuganji worked as a silkworm breeder and bank employee after leaving school. he also served as a community welfare(福利) officer. he had been in god health, talking daily with his family members.washington: every american dislikes

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