Unit5單元檢測(cè)（北師大版必修2）

.完形填空Generally，a computer is any device that can perform numerical calculations._1_，however，the term usually refers to an electronic device that can _2_a series of tasks according to a _3_set of instructions.In 1953 there were only about 100 computers in use in the _4_world.Today hundreds of millions of computers are being used in homes，schools，businesses，government offices，and universities for almost every _5_purpose.Modern desktop personal computers，or PCs，are many times more _6_than the huge，milliondollar business computers of the 1960s and 1970s.Most PCs can perform from 400 million to several billion _7_per second.These computers are used not only for household _8_and personal entertainment，but also for most of the automated tasks _9_by small businesses.The fastest desktop computers are called workstations，and they are _10_used for scientific，engineering，or advanced business _11_.The speed and power of supercomputers，the fastest class of computer，are almost beyond human comprehension，and their _12_are continually being _13_.The fastest of these machines can perform more than 7 trillion and theoretically can run more than 12 trillionoperations per second and can store 6 trillion characters in its memory，allowing it to do the work of thousands of PCs.Supercomputers _14_these speeds through the use of several advanced engineering techniques.Because they can cost billions of dollars and because they can be large enough to cover the size of two basketball courtssupercomputers are used _15_by government agencies and large research centers.1A.CurrentlyBConsequentlyCCertainly DClearly解析：選A。Currently目前。該句的意思是：一般來(lái)說(shuō)，任何可以執(zhí)行數(shù)字計(jì)算的裝置都可以稱為計(jì)算機(jī)。但是，現(xiàn)在，這個(gè)詞一般是指能夠按照一系列精確的指令執(zhí)行一系列任務(wù)的電子裝置。B.Consequently“后來(lái)”；C.Certainly“當(dāng)然”；D.Clearly“很明顯地”。從邏輯關(guān)系上來(lái)看，只有Currently最合適。2A.perform BconductCachieve Dfulfill解析：選A。perform“做；執(zhí)行；表演；指揮；操作”；B.conduct“行為；處理；引導(dǎo)；指揮；導(dǎo)電”；C.achieve“完成，達(dá)到”；D.fulfill“實(shí)踐，履行，實(shí)行，結(jié)束，滿足，完成，達(dá)到”，只有A符合文意。3A.rigid BseriousCprecise Dharsh解析：選C。precise精確的，準(zhǔn)確的，符合文意。A.rigid“剛硬的，剛性的，嚴(yán)格的”；B.serious“嚴(yán)肅的；認(rèn)真的”；D.harsh“嚴(yán)厲的；殘酷的；無(wú)情的”。4A.entire BcompleteCtotal Dgeneral解析：選A。該句的意思是：在1953年，全世界只有大約100臺(tái)計(jì)算機(jī)。“全世界”用entire world。B.complete強(qiáng)調(diào)“完整性”；C.total強(qiáng)調(diào)“合計(jì)，總計(jì)”；D.general“一般的，普通的，綜合的，概括的，全面的，大體的”。5A.perceptive BpossibleCinevitable Dimaginary解析：選B。possible“可能的，想得到的，可想象的”，符合題意。A.perceptive“感覺(jué)敏銳的；觀察入微的”；C.inevitable“不可避免的，必然的”；D.imaginary“假想的，想象的，虛構(gòu)的”，均與題意不符。6A.powerful BlargerCclever Dsmaller解析：選A。many times more powerful，該句的意思是：現(xiàn)代的臺(tái)式個(gè)人計(jì)算機(jī)，或者PC，比二十世紀(jì)六十年代和七十年代那些巨型的，價(jià)值數(shù)百萬(wàn)的商用計(jì)算機(jī)功能強(qiáng)大很多倍。7A.exercises BmissionsCerrands Doperations解析：選D。該句的意思是：大多數(shù)個(gè)人電腦每秒可以實(shí)現(xiàn)四億到幾十億次的運(yùn)轉(zhuǎn)。和perform搭配的名詞，四個(gè)選項(xiàng)中，operation最恰當(dāng)。A.exercise“練習(xí)，習(xí)題”；B.mission“特使團(tuán)；任務(wù)”；C.errand“差事，差使，使命”，不合題意。8A.management BexecutionCapplication Dmanipulation解析：選A。該句的意思是：這些電腦不僅用于家庭管理和個(gè)人娛樂(lè)，而且用于企業(yè)多數(shù)的自動(dòng)完成的任務(wù)。management“經(jīng)營(yíng)，管理，處理，操縱”，符合題意。B.execution“實(shí)行，完成，執(zhí)行，死刑”；C.application“請(qǐng)求，申請(qǐng)，申請(qǐng)表，應(yīng)用，運(yùn)用”；D.manipulation“處理，操作，操縱，被操縱”。9A.claimed BnecessitatedCrequired Drequested解析：選C。required“需要”，根據(jù)句意用require最恰當(dāng)。A.claim“(根據(jù)權(quán)利)要求，認(rèn)領(lǐng)，聲稱，主張”；B.necessitated“使需要；使成為必需；”D.request“要求；請(qǐng)求”。10A.inclusively BgenerallyCtotally Dentirely解析：選B。該句的意思是：最快的計(jì)算機(jī)被稱為工作站。它們一般被用于科學(xué)，工程，或者高級(jí)商務(wù)。B.generally“一般地，通常地”符合題意。A.inclusively“包含地，在內(nèi)地”；C.totally“完全地”；D.entirely“徹底地；完全地”。11A.employments BexercisesCusages Dapplications解析：選D。applications“應(yīng)用”，usage一般指語(yǔ)言的“使用，用法”。12A.capabilities BqualificationsCskills Dvacancies解析：選A。該句的意思：它們的性能還在日新月異地改進(jìn)。capability“(實(shí)際)能力，性能，容量，接受力”，符合題意。B.qualification“資格，條件，限制，限定，賦予資格”；C.skill“技能，技巧，熟練，巧妙(多用于人)”；D.vacancy“空，空白，空缺，空閑”。13A.propelled BboostedCimproved Denriched解析：選C。improved“提高”，“改進(jìn)”，“改善”，符合題意。A.propel“推進(jìn)，驅(qū)使”；B.boost“往上推；增加；提高”；D.enrich“使富足，使肥沃，使豐富”。14A.obtain BachieveCwin Dsecure解析：選B。該句的意思是：超級(jí)計(jì)算機(jī)是通過(guò)使用幾種先進(jìn)的工程技術(shù)實(shí)現(xiàn)這么快的速度的?！皩?shí)現(xiàn)某種速度”，可以用achieve。15A.primarily BconditionallyCinitially Dfundamentally解析：選A。該句的意思是：因?yàn)樗鼈兛赡軆r(jià)值數(shù)億美元，同時(shí)也因?yàn)樗鼈凅w積巨大，可以覆蓋兩個(gè)籃球場(chǎng)，超級(jí)計(jì)算機(jī)主要是政府機(jī)關(guān)和大型研究中心使用的。根據(jù)題意，選A。其他選項(xiàng)B.conditionally“有條件地”；C.initially“最初，開(kāi)頭”；D.fundamentally“基礎(chǔ)地，根本地”。.語(yǔ)法填空The Shenzhou astronauts Liu Boming，Zhai Zhigang and Jing Haipeng all returned safe and sound at 537 pm.yesterday afternoon with a solid touchdown in the Inner Mongolia autonomous region.The process was broadcast live 1._ national television.Spaceship commander and spacewalker Zhai Zhigang told China Central Television shortly after he and his crew 2._ (help)out of the reentry capsule: “It was a glorious mission (使命)，full of challenges with a perfect ending.I feel 3._ (pride)of our motherland.”The three heroic astronauts will have to wait 4._this morning before they can return to their homes.Before then，they were arranged for a full nights rest in Hohhot，the capital of Inner Mongolia.Zhai，a 42yearold astronaut from Heilongjiang Province，got his place in the history books with 5._20minute spacewalk on Saturday.“Greetings to the Chinese people and the people of the world，” Zhai said as he floated out of Shenzhou 6._(slow)Liu stayed inside the orbital module to assist him 7._Jing monitored the operation from the reentry capsule.President Hu Jintao watched the spacewalk from the Beijing center8._a number of other state leaders.Shortly afterwards，Hu told the astronauts in a televised telephone exchange: “Your 9._(succeed)represents a breakthrough in our manned space program，the motherland and the people are 10._(thank)to you.”1解析：考查介詞的用法。根據(jù)意思：“全過(guò)程電視現(xiàn)場(chǎng)直播”on/over television通過(guò)電視。答案：on/over2解析：考查謂語(yǔ)動(dòng)詞的用法。根據(jù)句子結(jié)構(gòu)：連詞after后缺少謂語(yǔ)，由句意知，此處用被動(dòng)語(yǔ)態(tài)，意為“他和他的伙伴被幫助”。答案：were helped3解析：考查形容詞的用法。感官動(dòng)詞feel需加形容詞作表語(yǔ)。答案：proud4解析：考查介詞的用法。 根據(jù)結(jié)構(gòu)：_this morning 作狀語(yǔ)，應(yīng)填介詞，根據(jù)意思“一直等到今天上午”。答案：until/till5解析：考查冠詞的用法。中心名詞spacewalk前需加冠詞或形容詞性物主代詞來(lái)修飾。答案：his/a/the6解析：考查副詞的用法。副詞slowly用以修飾動(dòng)詞float。答案：slowly7解析：考查連詞的用法。根據(jù)結(jié)構(gòu)：空格前后都有謂語(yǔ)動(dòng)詞，應(yīng)填連詞；再根據(jù)意思“當(dāng)時(shí)候”引導(dǎo)時(shí)間狀語(yǔ)從句。答案：while/as8解析：考查介詞的用法。根據(jù)意思：“與其他國(guó)家領(lǐng)導(dǎo)人一起觀看了?！眞ith表示伴隨狀況。答案：with9解析：考查名詞的用法。 根據(jù)結(jié)構(gòu)：空格前是形容詞，應(yīng)填名詞?！澳銈兊某晒Α睉?yīng)用名詞success。答案：success10解析：考查形容詞的用法。系動(dòng)詞are后要用形容詞。答案：thankful.閱讀理解Researchers are placing robotic dogs(機(jī)器狗)in the homes of lonely old people to determine whether they can improve the quality of life for humans.Alan Beck，an expert in humananimal relationship，and Nancy Edwards，a professor of nursing，are leading the animalassisted study concerning the influence of robotic dogs on old peoples depression，physical activity，and life satisfaction.“No one will argue that an older person is better off being more active，challenged，or stimulated(刺激)，”Edwards points out.“The problem is how we promote(使成為現(xiàn)實(shí))that，especially for those without friends or help.A robotic dog could be a solution.”In the study，the robot，called AIBO，is placed for six weeks in the houses of some old people who live alone.Before placing AIBO in the home，researchers will collect baseline data for six weeks.These old people will keep a diary to note their feelings and activities before and after AIBO.Then，the researchers will review the data to determine if it has inspired any changes in the life of its owner.“I talk to him all the time，and he responds to my voice，”says a seventyyearold lady.“When Im watching TV，hell stay in my arms until he wants down.He has a mind of his own.”The AIBOs respond to certain orders.The researchers say they have some advantages over live dogs，especially for old people.Often the elderly are disabled and cannot care for an animal by walking it or playing with it.A robotic dog removes exercises and feeding concerns.“At the beginning，it was believed that no one would relate to the robotic dog，because it was metal and not furry.”Beck says.“But its amazing how quickly we have given up that belief.”Hopefully，down the road，these robotic pets could become a more valuable health helper.They will record their masters blood pressure，oxygen levels，or heart rhythms.AIBOs may even one day have games that can help stimulate old peoples minds.1The purpose of Beck and Edwards study is to_.Aunderstand humananimal relationshipBmake lonely old peoples life betterCfind the causes of old peoples lonelinessDpromote the animalassisted research解析：選B。依據(jù)第一段開(kāi)頭“.to determine whether they can improve the quality of life for humans.”可以得出答案。2In the research，the old people are asked to_.Anote the activities of AIBOsBkeep AIBOs at home for 12 weeksCrecord their feelings and activitiesDanalyze the collected information解析：選C。依據(jù)第二段“These old people will keep a diary to.”可知。3What is the advantage of AIBO over live dogs?AIt is easier to keep at home.BIt can help the disabled people.CIt responds to all the human orders.DIt can watch TV with its owner.解析：選A。從文章第四段“.some advantages.removes exercises and feeding concerns.”可以知道答案。4The author seems to suggest that the future robotic dogs may_.Acure certain diseasesBkeep old people activeCchange peoples beliefsDlook more like real dogs解析：選B。從文章的最后一句“.stimulate old peoples minds.”可得出答案。5According to the passage，which of the following statements is TRUE?AThe professors are leading the animalassisted study concerning old peoples life.BThe AIBOs will always listen to their owners without their own minds.CThe researchers will know from the data whether AIBO can help its owner.DAIBOs can have games with the old people to stimulate their minds.解析：選C。從文章第一段可以知道這個(gè)研究是關(guān)注機(jī)器狗對(duì)老人們生活的影響，而不是關(guān)注老人們的生活，所以A是錯(cuò)的；從文章第三段“He has a mind of his own.”得知B項(xiàng)也不對(duì)；文章最后一句“AIBOs may even one day.”說(shuō)明D項(xiàng)提到的現(xiàn)在還沒(méi)有實(shí)現(xiàn)；從文章第二段最后一句可以知道C項(xiàng)是正確的。.信息匹配閱讀下面6款數(shù)碼產(chǎn)品的介紹，并按照要求匹配信息。以下是不同款式數(shù)碼產(chǎn)品的介紹：ACool Design MP4 Player1GB1.8Inch ScreenVery coollooking MP4 Player，Combining 65,000 OLED screen，easy to use design，a playback function in MP3 or WMA，digital picture slideshow function，and USB 2 with Plug and Play，this wholesale MP4 is easily worth more than its low price.Easy to understand menus，and responsive buttons.Sample Price：$28.00B16GB MP4/MP3 Player with 2.7Inch LCDPocketsized PMP16GB Portable Media Player (PMP)with crisp (清新的)TFT LCD touchscreen.Many functions and features.Starting with an 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