【步步高】高考英语大一轮复习 Book2 Unit 3 Computers练习 新人教版.doc

unit 3computers.单项填空1i saw a woman running toward me in the dark.before i could recognize who she was，she had run back in the direction _ she had come.aof whichbby whichcin whichdfrom which2many scientists have believed that there may be a_ of life on the mar.asignalbsigncmarkdsigh3i knew _ john lennon，but not _ famous one.a/；aba；thec/；thedthe；a4she_her eyes from her book.arosebarousedcraiseddb and c5would you like some more soup? _.it is delicious, but ive had enough.ayes，pleasebno，thank youcnothing moredid like some6_ the questions put forward，he felt very happy.asolvedbhaving solvedcsolvingdto solve7millions of pounds worth of damage _ by a storm which swept across the north of england last night.ahas been causedbhad been causedcwill be causeddwill have been caused8how about going downtown this morning?well.，its a bit too cold outside.and _，ive got to do some housework.asome waybanywaycsomehowdsomewhat9dont believe him.he_ a story.amakes upbis making upcmakes up ofdis making out10_the car accident，jackson couldnt work any longer.aas a resultbas a result ofcas the resultdas result of11he studys very hard.im sure he is _ the way to becoming a college student.aonbincatdby12how do you_ a disagreement between the company and its customers?the key to solving the problem is to meet the demand made by the customers.amake do withbdo withchandle withddeal with13_ about the economic crisis that he decided to look for more information about it.aso curious he wasbso curious was hecsuch curious he wasdsuch curious was he14i couldnt do my homework with all that noise_.agoing onbgoes oncwent ondto go on15the new story is written in_ easy english_ even beginners can understand it.asuch；thatbso；thatcsuch；asdtoo；that.阅读理解rachel carson was born on may 27,1907 in pennsylvania.her mother bequeathed her a deep love of nature and the living world that rachel expressed first as a writer and later as a student of marine biology.carson graduated from pennsylvania college for women in 1929 and studied at the woods hole marine biological laboratory.she received her masters degree in zoology from johns hopkins university in 1932.she worked for the us.bureau of fisheries，writing radio scripts during the depression(经济大萧条) to increase her income writing feature articles on natural history for the baltimore sun.she began a 15year career in the federal service as a scientist and editor in 1936 and rose to become editorinchief of all publications for the us.fish and wildlife service.she wrote books on conservation(保护) and natural resources and edited scientific articles，but in her free time turned her government research into prose(散文)，first as an article undersea(1937)，and then in a book，under the seawind(1941)in 1952 she published her prizewinning study of the ocean，the sea around us，which was followed by the edge of the sea in 1955.these books made up a biography(传记) of the ocean and made carson famous as a naturalist and science writer for the public.carson resigned in 1952 to devote herself to her writing.she wrote several other articles designed to teach people about the wonder and beauty of nature，including help your child to wonder(1956)and our everchanging shore(1957)，and planned another book on ecology.in carsons writing，she expressed her view that human beings were only part of nature.disturbed by the overuse of chemical pesticides(杀虫剂) after world war ，carson changed her focus in order to warn the public about the long term effects of misusing pesticides.in silent spring(1962) she challenged the practices of agricultural scientists and the government，and called for a change in the way humankind viewed the natural world.carson was attacked by the chemical industry，but she still called for new policies to protect human health and the environment.rachel carson died in 1964 after a long battle against breast cancer.16the underlined word “bequeathed” in paragraph 1 probably means “_”apassed onbgave lessonscbrought updset an example17what do we know about rachel carson during the depression?ashe was working as a fulltime editor.bshe wrote for radio stations.cshe devoted most of her energy to writing.dshe was in charge of the us.bureau of fisheries.18by publishing her prose and books，rachel carson_.aaccumulated considerable wealthbarouse peoples social awarenesscrose to fame as a naturalist and writerdshowed concern about endangered species19why did rachel carson change the theme of her writing?aworld war caused a lot of suffering.bmodern technologies improved nature.cthe environment was greatly damaged.dtoo many chemical pesticides were used.20the text is mainly about_.ahow to protect marine animalsbthe life story of rachel carsoncenvironmental protection in the us.dthe side effects of chemical pesticides.任务型读写a smart card is a card that is carried with either a microprocessor and a memory chip or only a memory chip that is not programmable.the microprocessor card can add, delete, and deal with the information on the card, while a memorychip card can only do one thing.smart cards, unlike magnetic stripe cards, can do many different things and hold a lot of information.in this way, they do not need to get information from a faraway place when they are used.today, there are several kinds of smart cards, all of which are very popular in the market: ic (integrated circuit) microprocessor cards (chip cards) offer a larger memory and better security than the traditional magnetic stripe cards do.chip cards can also hold data. these cards are used for many things.thus, chips have been the main platform for cards that hold a secure digital identity.some examples of these cards are：cards that hold money.cards that provide safe access to a network.cards that allow setting stop boxes on televisions to remain safe from privacy.optical memory cards look like cards with a piece of cd on the top.optical memory cards can store up to 4mb of data. but once written, the data can not be changed or removed. thus, this type of card is good for keeping records, such as medical files,