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課時作業(yè)(十六)Unit18BeautyⅠ.語法填空treatedtheorphan________herownchild.答案:as2.ItisnoteasytolearnEnglishwell,butifyouhang________,youwillsucceedintheend.答案:on3.Sointerestedinthescriptbased________the25,000-liLongMarch,hehasdecidedtoplaytheleadingpart.答案:on4.(全國卷Ⅰ改編)Ihaveseldomseenmymother________pleasedwithmyprogressassheisnow.答案:so5.Wewilldothephysicsexperimentinthelabwhichisin________chargeofMrSmith.答案:the6.Itwasextremelydarkinthepassagesohe________(strike)amatch.答案:struck7.Toqualifyyourselfforthiskindofnewjob,Irecommendthatyou________(take)someonlinecourses.答案:take8.Hislegwasbecame________(evidence)thathisfootballcareerwouldsoonbeover.答案:evident9.As________asyouarehappy,itdoesn’tmatterwhatyoudo.答案:long10.—Didyougodutchafterthatmeal,Imean,withtheotherfourfriends?—No,becauseitwasmy________thatday.答案:treatⅡ.完成句子1.__________________________(稍等一會兒).I’mnotquiteready.答案:Hangonaminute2.Idon’tknowwhois__________________________(負(fù)責(zé)這個工程).答案:inchargeoftheproject3.__________________________(我十分清楚)thathewasnottellingthetruth.答案:Itwasevidenttome4.Irecommend__________________________(乘飛機(jī)去)foratoursomewhere.答案:goingbyair5.__________________________(她突然想起)sheleftherkeysonthebus.答案:ItstruckherthatⅢ.完形填空SomethingunexpectedhappenedtomeguessthatIwascousinandIwentoutforlunchinanItalianplannedto__2__herday,forshelostherhusbandafewweeksago.Here’smoreofthe__3__:Mycousinhassomethingwrongwithhereyes,soshecan’Ihavetouseawalkerbecauseofmydifficultyinwe__5__therestaurant,wecameacrossanoldcouplewhowerejustweren’tquiteasoldasweare,__6__theymighthavebeenintheirgentleman__7__thedoorforusandhiswifetherewouldn’tbeanytipcoming,butIstillthankedthemfortheirhelp.Aniceyoungmanshowedustoour__9__—IthinkalloftheArizonapeoplearereadytohelpayoungladyintroducedherselfasour__11__andaddedthatshewasinlookedoverthemenuandpreparedofasudden,theladywe__13__atthedoorappearedatourtable.“Lunchisonme,”shetosay,weofushadeverexperiencedsuchtheyoungwaiterreturnedandhandedusagiftleftusagiftcardworth$125.BeinglongtimecitizensofArizona,wehavegotusedtothekindnessofstrangershere,butthisnice__17__wasoutofthewantthat__18__coupletoknowwewillnever__19__this,andthattheycanbe__20__wewilldowhatwecantohelpotherpeople.語篇解讀本文是記敘文。文章主要講述了在一家餐館里,一對陌生的夫婦主動為兩位年邁的老太太買單的故事。1. B.carefulC.strong D.serious解析:由下文的內(nèi)容可知,作者受到一對夫婦的幫助,所以她覺得自己是個“幸運(yùn)的(lucky)”人。答案:A2. B.brightenC.spend D.celebrate解析:作者的表姐夫幾周前去世了,所以她約表姐出來吃飯,希望讓她的心情好一些,故用brighten。答案:B3. B.problemC.story D.plan解析:由下文的內(nèi)容可知,這句話引出了具體的“故事(story)”經(jīng)過。答案:C4. B.thinkC.hear D.see解析:由上一句Mycousinhassomethingwrongwithhereyes可知,作者的表姐“看(see)”不清東西。答案:D5. B.discussedC.entered D.remembered解析:由下文的Aniceyoungmanshowedus...和Thenayoungladyintroducedherself...以及Welookedoverthemenu...可知,作者她們“走進(jìn)(entered)”餐館。答案:C6. B.butC.if D.until解析:那對夫婦雖然沒有作者她們老,“但是(but)”也可能六十來歲了。答案:B7. B.a(chǎn)nsweredC.closed D.showed解析:由上文的Aswe________therestaurant,wecameacrossanoldcouplewhowerejustleaving可知,作者姐妹二人進(jìn)門時,老夫婦正要出門,所以這里應(yīng)該是老先生順手為作者她們“扶著(held)”門。答案:A8. B.a(chǎn)rguedC.doubted D.joked解析:那對老夫婦也是來就餐的顧客而并非餐館的服務(wù)員,所以對于他們的幫助作者只是“開玩笑說(joked)”沒有小費(fèi)。答案:D9. B.foodC.car D.home解析:由下文的Welookedoverthemenu...可知,一個友善的年輕人把作者她們帶到“餐桌(table)”前。答案:A10. B.oldC.sick D.injured解析:來到飯店,作者受到了不少禮遇,再結(jié)合上文的Theyweren’tquiteasoldasweare,________theymighthavebeenintheirsixties可知,作者覺得所有的亞利桑那人都樂意幫助“老人(old)”。答案:B11. B.guideC.server D.cook解析:由下文作者二人開始點(diǎn)菜可知,這位年輕的女士是“服務(wù)員(server)”。答案:C12. B.leaveC.rest D.order解析:由Welookedoverthemenu可知,作者她們看著菜單準(zhǔn)備“點(diǎn)菜(order)”。答案:D13. B.metC.welcomed D.recognized解析:突然,作者她們在門口“遇到(met)”的那位太太出現(xiàn)在她們的餐桌旁。答案:B14. B.satisfiedC.a(chǎn)mazed D.disappointed解析:由上一句“Lunchisonme,”shesaid可知,那位太太說午餐她請客,這讓作者她們很是“吃驚(amazed)”。答案:C15. B.finalC.formal D.generous解析:作者她們都沒有遇到過這樣“慷慨的(generous)”幫助。答案:D16. B.ladyC.couple D.cousin解析:門口遇到的那位太太說午餐她請客,于是服務(wù)員一會兒送來了一張卡,所以這張卡就是門口那對老“夫婦(couple)”留下的。答案:C17. B.lessonC.report D.gesture解析:作者她們長期生活在亞利桑那州,已經(jīng)習(xí)慣了這里陌生的人們的友善行為,但是這次善意的“表示(gesture)”卻不同尋常。答案:D18. B.friendlyC.funny D.interesting答案:B19. B.a(chǎn)cceptC.require D.mind答案:A20. B.sorryC.a(chǎn)fraid D.grateful解析:作者她們想讓那對“友好的(friendly)”夫婦知道,她們永遠(yuǎn)不會“忘記(forget)”這件事,而且她們想讓這對夫婦“相信(sure)”,她們也會盡力去幫助他人。答案:AⅣ.閱讀理解WhenEuropeansettlersarrivedinNorthAmerica,theybroughtEuropeandiseaseswith,hugenumbersofNativeAmericansbegandyingfromsmallpox(天花)-hundred-year-olddocumentsrecordthistale,butnowscientistssaythey’vefoundotherevidenceburieddeepinsidehumancells.Inanewstudy,BrendanO’FallonandLarsFehren-SchmitzreportevidencefoundingenesthattheNativeAmericanpopulationdroppedbyhalfafterthearrivalof’FallonstudiesgenesatARUPLaboratoriesinSaltLakeCity,whileFehren-Schmitzisascientistwhostudieshumankind,attheUniversityofG?ttingeninGermany.Cellsmakeupeverypartoftheinsidealmosteverycellisalong,coiledmolecule(盤繞顆粒)calledarepartsofDNAthatplayimportantrolesindeterminingone’shelpdetermineaperson’sappearance,suchasskincolorandheight,andalsoplayaroleinmanythingsyoucan’tsee,likethechanceofgettingadisease.Geneschangeovertime,andbyfollowingthesechangesscientistscanlearnaboutaperson’s’FallonandFehren-Schmitzlookedatgenesinthemitochondriaofcells.(Mitochondriaarelikefactoriesthathelpcellsuseenergyfromfood.)ThescientistscomparedDNAfromtheremainsofancientNativeAmericanswithDNAfromlivingpeopledescended(遺傳)fromNativeAmericans.Thescientistsstudiedpatternsinthegenesfromthetwogroupsandidentifiedwaysthatthepatternschangedoverstatistics,whichincludesusefulmathematicaltoolsforanalyzinglargeamountsofdata,theresearcherswereabletojudgethesizeoftheNativeAmericanpopulationbeforeandaftertheEuropeans’comparisonshowedthenumberofnativepeoplereducedsharplyafterEuropeansettlerslandedintheNewEarliergeneticstudiesdidn’thaveevidenceoftheNativeAmericandie-involvedinthenewstudysaythatthere’snowmoredatafromancientremains,soresearcherscangetabetterideaofwhathappened.語篇解讀基因承載了人類遺傳密碼,是隨時間推移而不斷變化的。通過對基因的分析和研究,人們可以解開很多秘密。1.BrendanO’FallonandLarsFehren-Schmitzwork________.A.a(chǎn)tthesameuniversity B.inthesamecountryC.fordifferentpurposes D.togetthesameresult解析:細(xì)節(jié)理解題。根據(jù)第二段和第四段的內(nèi)容,可知兩位科學(xué)家并不在同一個國家,同一個大學(xué)工作,在研究基因時,也不是為了不同的目的,最后得出的是同一個結(jié)論,所以D項正確。答案:D2.GeneshelpdeterminemanythingsofapersonEXCEPT________.A.a(chǎn)person’sappearance

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