高中英语北师大版Unit21HumanBiology 课时作业1

课时作业(十三)Unit21HumanBiologyⅠ.完形填空Iboughtasmallboatwhenmyfamilyspentonesummervacationenjoyingthebeachesofbeautifulofmydaughters__1__alldayinthethelittleonegottiredandwasbeginningtolookpretty__2__withtoomuch，Itookhertoourspotonthesandasmyeldergirlcontinuedtoplayintheboat.Iprobablybecamealittletoo__4__withmyyoungerdaughter，notnoticingtheboatwithmyelderdaughterinitwasmovingfaroutfromcalledtohertocomeclosertotheshoreandshe__6__tobe，thethingwehadn’tthoughtto__7__fortheboatwereanylittlearmsweretoo__8__toreachacrosstheboatandintotheshecoulddowastopaddle(划)__9__toonesideandtheboatwasjustmakingsmall__10__.IstoodasfaroutinthewaterasIcould—shouting__11__towasaboatofteenagersnotfarfromthey__12__whatwashappening，theystartedtoheadherwayimmediately.I’mnotagood__13__butIdeterminedtogetmyselfoutfirstattemptofmyarmsseemedtobeslow，andIcouldn’t__14__Iwasdoingcontinuedswimming__15__InolongerkneworcouldfeelthatIhadlegs，butIalwayskeptmy__16__onbytheteenagers，Ifinallymademywaybackpullingherand__17__her.Wecamebacktotheshoreandmylifewaschangedforeverbylearnedthatmaybewethinkwearenot__19__enoughsometimes，butifwe__20__ourselvesenoughandtakethatfirstattemptwehaveallthestrengthweneed.语篇解读作者通过在海边度假的一次危险经历告诉我们：只要我们有足够的自信心，我们就一定能成功。1．A．hid B．fishedC．slept D．played解析：通过下文thelittleonegottired及asmyeldergirlcontinuedtoplayintheboat可知，作者的两个女儿一整天都在船上玩(played)。答案：D2．A．green B．blueC．pink D．yellow解析：由本空后的sun可以推断出小女儿在海面上被晒了一天，皮肤变得红红的(pink)。答案：C3．A．Therefore B．StillC．However D．Again解析：小女儿累了，又被晒得红红的，于是(Therefore)作者就把她带上岸。答案：A4．A．familiar B．boredC．angry D．involved解析：根据后半句notnoticing可推断，作者太关注(involved)小女儿了。答案：D5．A．crowd B．shoreC．trip D．goal解析：从下文的comeclosertotheshore可以得到提示。答案：B6．A．pretended B．seemedC．refused D．decided解析：看到自己离海岸越来越远，作者的大女儿应该是看起来(seemed)非常害怕。答案：B7．A．make B．buyC．borrow D．change解析：由文章首句可知，作者是在度假的时候买的船，再由下文他的大女儿用手划船可知，作者买船的时候没有想到买(buy)桨。答案：B8．A．fat B．painfulC．short D．weak解析：由littlearms可推断，作者大女儿的胳膊太短(short)，够不到船两边的水。答案：C9．A．hard B．naturallyC．patiently D．fast答案：A10．A．waves B．mistakesC．attempts D．circles解析：她拼命地(hard)在一边划，结果弄得小船只在原地打转(circles)。答案：D11．A．orders B．instructionsC．demands D．opinions解析：作者走进海水中，尽可能离大女儿近点，然后使劲向她喊，告诉她该怎么做(instructions)。答案：B12．A．remembered B．noticedC．predicted D．imagined解析：当附近船上的少年注意到(noticed)发生了什么事情后，他们马上向作者大女儿的方向划来。答案：B13．A．swimmer B．fatherC．friend D．rescuer解析：由本空后的Ideterminedtogetmyselfoutthere及下句的slow可推断，作者水性不好(notagoodswimmer)。答案：A14．A．admit B．believeC．say D．recognize解析：作者水性不好，但仍迈出了尝试的第一步，他自己都不相信(believe)自己在游泳。答案：B15．A．but B．afterC．until D．unless解析：作者拼命往前游，直到(until)手脚都麻木了。答案：C16．A．hopes B．eyesC．hands D．feelings解析：但是，作者始终注视着(eyes)他的大女儿，拼命往她那儿游。答案：B17．A．calming B．curingC．praising D．training解析：在那些少年的帮助下，作者一边奋力往回游一边安慰(calming)大女儿。答案：A18．A．memory B．boatC．experience D．beach解析：显然，作者对待人生的态度因为这次经历(experience)而改变。答案：C19．A．smart B．strongC．qualified D．modest解析：根据上文作者水性不好的事实及文末的strength可推断，这里指有时侯我们认为自己可能不够强大(strong)。答案：B20．A．remind B．supportC．behave D．trust解析：通过作者的经历可知，如果我们足够相信(trust)自己，并迈出尝试的第一步，我们就会得到我们所需的力量。答案：DⅡ.阅读理解Lastnight，onmywayhomeIstoppedbecauseofbeingattractedbysomehamburgersatafastfoodmywayin，ahomelessmanapproachedmeandasked，“Doyouhaveanybottleslyingaround？”Iknewhewouldrecyclethemforafewcents，butIdidn’thaveany，soIsaidagainheasked，“Canyousparesomechange(零钱)？”Ismiled，andsaidnowasveryrespectful；hesmiledbackandsaid，“OK，thankyou.”Eventhoughhedidn’thaveanything，hewasstillingoodthewayhespokeIcouldtellhewassmart.ThenIboughtonehamburgerandenjoyedmymeal，butinthebackofmymindIwonderedwhetherthehomelessmanwasIfinishedmymealIdecidedtoorderanotheroneforthispointIdidn’tknowifhewasstillaround，butItriedanyway.AtthecounterIorderedahamburgerandalsoahotchocolate，becauseitwascoldoutside，andIthoughtitwouldhelpwarmhimdelivered(递送)methehotchocolatefirstandasIwaitedformyhamburger，Inoticedthehomelessmanwasstandingrightbesidelookedathimandsmiled，“Thishotchocolateisforyou.”Herepliedlikeagentleman，“Thankyouso’sverykindofyou.”Ialwaysbelievenomatterhowhardup(缺钱)Iam，therearealwaysthosewhoareworseoffthanI．Whenyouhelpsomeone，it’snotalwaysaboutmoney，it’saboutloveyougivetoday，someonemightforgetdoesn’tanyway，becausethegreatestthingyoucangiveislove.语篇解读作者通过自己助人的经历告诉我们要帮助其他人，因为这关乎爱。1．Whydidtheauthorstopatafastfoodrestaurant?A．Becausehewashungryandthirsty.B．Becausethehamburgersthereinterestedhim.C．Becausehehopedhecouldcollectsomebottlesthere.D．Becausehewantedtohelpthehomelessmanthere.解析：细节理解题。根据第一段onmywayhomeIstoppedbecauseofbeingattractedbysomehamburgersatafastfoodrestaurant可知，作者之所以停留在快餐店，是因为被一些汉堡包吸引了。答案：B2．Wecanlearnfromthefirsttwoparagraphsthattheauthor________.A．wasangrywiththehomelessmanB．wasanoldfriendofthehomelessmanC．decidedtohelpthehomelessmanafterhismealD．finishedhismealquicklytohelpthehomelessman解析：细节理解题。分析第二段可知，作者在吃饭期间，脑子里想到的是这个无家可归的人是否饿了，所以吃完饭后，他决定给这个无家可归的人买一份快餐。答案：C3．Wecaninferfromthetextthatthehomelessmanwas________.A．oldandsick B．politeandfriendlyC．sadandnervous D．calmandconfident解析：推理判断题。根据第一段的Hewasveryrespectful；hesmiledbackandsaid，“OK，thankyou.”及第三段的Herepliedlikeagentleman，“Thankyouso’sverykindofyou.”不难推测，这个人既礼貌又友好。答案：B4．Theauthorwantstotellusthat________.A．lovecannotbeforcedB．moneycannotbuyeverythingC．thereisalwayssomeonethatwecanhelpD．weshouldn’tforgetthosewhooncehelpedus解析：推理判断题。根据最后一段第一句“我一直坚信无论我多么缺钱，总会有人比我更拮据”及其后面作者鼓励人们帮助他人可知，作者认为总有些人是我们可以帮助的。答案：CFromelephantstohorses，dogstopigeons，animalshavefoundthemselvesbeingusedduringtimesofwereusedfortransportation，andotherstosendover2,500years，catsalsoplayedaroleinwarfare—oftenatahighpricetothemselves.OneoftheearliestrecordedinstancesofcatsbeingusedinwaroccurredduringtheBattleofKingofPersiaknewhowgreatlyhisEgyptianenemiesworshipedsomeaccounts，heandhissoldierscaughtseveralcatsandusedthemasshields(盾)intheirattackonthecityofotheraccounts，thePersianssimplysetcatsfreeonthebattlefield.Eitherway，becauseitwasagainstEgyptianlawtohurtorkillacat，theEgyptiansoldierscouldn’tfightbackdidtheonlythingtheycould：theygaveuptothePersianforce.In16th­centuryGermany，anofficerpresentedaplantothecounciltousecatstospreadpoisonousgasamongenemyturncatsintogasbombs，hesuggestedattachingjars(罐子)filledwithpoisongastothecats’thecatsran，thejarswouldreleasetheirpoisonousgas，killingtheenemy.Luckily，theplanwasneverputintocatsweren’tsoWorldWarⅠ，theBritisharmyemployed500,000catstocatchratsandalsousedthemasmobilegasdetectorstowarnthemofgasthecatsweresomuchsmallerthansoldiers，theywouldfeeltheeffectsofthegasfaster，givingthesoldierstimetoforthecats，therearenorecordsregardinghowmanysurvived.Althoughtoday’smilitaryusesdogstofindoutbombs，catshavetheirownbuilt­inabilitytoknowwhenabombisabouttomilitarycatsaretreatedaspetstoday，buttheystillplayanimportantpartinkeepingmorale(士气)high.语篇解读有很多动物都被用于军事用途，猫也是其中一种。5．Whatwouldbethebesttitleforthepassage?A．Howcatsaffectourlife B．HistoryofpetcatsC．Theuseofcatsinthewar D．Tipsfortrainingcats解析：主旨大意题。本文主要描述的是猫用于军事的历史及现状。答案：C6．TheKingofPersiacou