限时练42　选择性必修第四册　UNIT 12(B组)

限时练42选择性必修第四册UNIT12(B组)语法填空体裁:说明文主题语境:科学难度:★★★☆Areyouafraidofgettingold?1.__________wegetpasttheageof25,manyofusimmediatelyfeeltheurgetostopthesignsofageing—especiallythevisibleones.Menandwomenarenowusingtopical“anti-ageing”creams,spatreatmentsandmedicalprocedures2.__________(oppose)manyofthem.3.__________thesemethodscansomewhataffectthewayyoulook,ageingisaninternalprocess.Anewstudyhasfoundexactlywhenduringyourlifetimethisprocesspeaks.AgroupofscientistsbasedoutoftheStanfordUniversitySchoolofMedicinehavediscoveredthatinstead4.__________beingasmooth,continuousprocess,ageingsurgesforwardatthreedistinctstagesoflife:first,attheageof34,thenatage60,andfinallyat78.Thestudy,publishedinNatureMedicine,5.__________(reveal)thatscientistscannotonlypredictyouragebystudyingtheproteome(proteinlevelsintheblood)butalsodeterminewhichorgansareageingfasterthantheothers,andwhichage-relateddiseasesyourbodyis6.__________(likely)todevelop.Thestudymeasuredplasmaproteins(血浆蛋白)collectedfrom4,263adultsbetweentheagesof18-95yearsandstudiedthechangesintheproteomethatoccurredwithage.Theirultimategoalwastounderstandhowtoidentifythechangesassociatedwithcardiovascular(心血管的)issuesandage-relateddiseaseslikeAlzheimer’sso7.__________therapeutictreatmentscanbedevisedtoopposetheirattackwhilethere’sstilltime.DrTonyWyss-Coray,oneoftheleadingmembersofthestudy,toldStanfordMedicineNewsCenter,“We’veknownforalongtimethat8.__________(measure)certainproteinscangiveyouinformationaboutaperson’shealthstatus—lipoproteins(脂蛋白)forcardiovascularhealth,forexample.Butithasn’tbeenappreciatedthatsomanydifferentproteins’levels—roughlyathirdofalltheoneswelookedat—changemarkedlywithadvancingage.”Thisdifferencebetweenthechronological(按时间计算的)andphysiological(生理的)age,accordingtothescientists’“plasma-proteinclock”,showedthatalotofpeopleinthestudyseemedyoungerthantheyactuallyare.What’smore,thestudyalsoconfirmedthatmenandwomen,thoughequally9.__________(represent)inthestudy,agedifferently.Doesthismeanmedicationsandlifestylemethods,withfurtherresearch,canalsobedevisedtohelp10.__________agestoorapidlyandisatriskofcontractingage-relateddiseaseslikehypertensionandAlzheimer’s?Youneverknow.应用文写作(建议信)假定你是李华,你校将开设国画、京剧和书法选修课。你校交换生Chris发来邮件咨询你的选课建议。请你回复邮件,内容包括:1.你的建议及理由;2.你的期待。注意:1.写作词数应为80左右;2.请在相应位置作答。参考词汇:选修课electivecourse读后续写(爱护动物)阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。Ashopownerplacedasignabovehisdoorthatsaid:“PuppiesForSale”.Signslikethisalwayshaveawayofattractingyoungchildren,andtonosurprise,aboysawthesignandapproachedtheowner,“Howmuchareyougoingtosellthepuppiesfor?”heasked.Theshopownerreplied,“Anywherefrom$30to$50.”Thelittleboypulledoutsomechangefromhispocket.“Ihave$2.37,”hesaid.“CanIpleaselookatthem?”Theshopownersmiledandwhistled.OutcameLady,whorandowntheaisleofhisshopfollowedbyfiveteeny,tinyballsoffur.Onepuppywaslagging(走得慢)considerablybehind.Immediatelythelittleboysingledoutthelaggingpuppyandsaid,“What’swrongwiththatlittledog?”Theshopownerexplainedthattheveterinarianhadexaminedthelittlepuppyandhaddiscovereditdidn’thaveahipsocket.Itwouldalwaysbelame(瘸的).Thelittleboybecameexcited.“ThatisthepuppythatIwanttobuy.”Theshopownersaid,“No,youdon’twanttobuythatlittledog.Ifyoureallywanthim,I’lljustgivehimtoyou.”Thelittleboygotquiteupset.Helookedstraightintothestopowner’seyes,pointinghisfinger,andsaid,“Idon’twantyoutogivehimtome.ThatlittledogiswortheverybitasmuchasalltheotherdogsandI’llpayfullprice.Infact,I’llgiveyou$2.37now,and50centsamonthuntilIhavehimpaidfor.”Theshopownersaid,“Youreallydon’twanttobuythislittledog.Heisnevergoingtobeabletorunandjumpandplaywithyouliketheotherpuppies.”注意:1.续写词数应为150左右;2.请在相应位置作答。“Well,Idon’twalksowellmyself.”saidthelittleboy.Thelittleboytookthelittlelamedoghomehappily.限时练42语法填空这是一篇说明文。文章主要说明了一项新的研究发现了人一生中衰老过程达到顶峰的确切时间以及如何测量衰老情况。1.Once考查状语从句。句意：一旦过了25岁，我们中的许多人就会立即感到想要阻止衰老的迹象——尤其是那些看得见的迹象。引导时间状语从句，表示“一旦”，应用once，位于句首，首字母大写。故填Once。2.tooppose考查非谓语动词。句意：男性和女性现在都在使用外用的“抗衰老”面霜、水疗和医疗程序来对抗其中的许多衰老。短语usesthtodosth表示“用某物做某事”。故填tooppose。3.Though/Although/While考查状语从句。句意：虽然这些方法会在一定程度上影响你的外表，但衰老是一个内在的过程。引导让步状语从句，表示“虽然”应用though、while或although，首字母大写。故填Though/Although/While。4.of考查固定短语。句意：斯坦福大学医学院的一组科学家发现，衰老不是一个平稳、连续的过程，而是在生命的三个不同阶段加速：首先是34岁，然后是60岁，最后是78岁。此处表示“而不是”应为固定搭配insteadof。故填of。5.hasrevealed考查时态和主谓一致。句意：这项发表在《自然医学》杂志上的研究表明，科学家不仅可以通过研究蛋白质组(血液中的蛋白质水平)来预测你的年龄，还可以确定哪些器官比其他器官衰老得更快，以及你的身体更容易患上哪些与年龄有关的疾病。此处表示过去发生的动作对现在产生的影响，应用现在完成时，主语为study，助动词用has。故填hasrevealed。6.morelikely考查比较级。句意同上。根据上文“organsareageingfasterthantheothers”可知，应用比较级。故填morelikely。7.that考查状语从句。句意：他们的最终目标是了解如何识别与心血管问题和阿尔茨海默病等与年龄有关的疾病相关的变化，以便在还有时间的时候设计出治疗方法来对抗它们的攻击。引导目的状语从句，表示“以便”应为sothat，故填that。8.measuring考查非谓语动词。句意：我们早就知道，测量某些蛋白质可以提供一个人健康状况的信息——例如，用于心血管健康的脂蛋白。此空处作从句的主语，应用动名词形式。故填measuring。9.represented考查非谓语动词。句意：此外，该研究还证实，男性和女性虽然在研究中占同等比例，但衰老地不同。此处为状语从句的省略，且省去的从句中的主语menandwomen与represent构成被动关系，故填过去分词。故填represented。10.whoever考查宾语从句。句意：这是否意味着，通过进一步的研究，药物和生活方式也可以被设计出来，帮助那些衰老过快、有患高血压和阿尔茨海默氏症等与年龄有关的疾病风险的人?引导宾语从句，从句缺少主语，且表示“无论谁”应用whoever。故填whoever。应用文写作范文借鉴DearChris，I’mgladtohearyou’reinterestedinourelectivecourses.AmongtheoptionsofChinesepainting,PekingOperaandcalligraphy,Iwouldrecommendyoutrycalligraphyfirst.CalligraphyisnotonlyauniqueartforminChina,butalsoameansofcultivatingone’stemperament.ItinvolveslearninghowtowriteChinesecharactersbeautifully,whichcanhelpyouappreciatethebeautyofChinesecharactersandculture.Additionally,calligraphyisaformofmeditation,allowingyoutofocusyourmindandrelax.I’mlookingforwardtoseeingyouexcelinthisartandyoursharingprogresswithme.Perhapswecanevenexchangeourcalligraphyworks!Pleaseletmeknowifyouneedanyfurtherassistance.Bestregards，LiHua读后续写范文借鉴“Well,Idon’twalksowellmyself.”saidthelittleboy.Hereacheddownandrolleduphispantlegtorevealabadlytwisted,crippledleftlegsupportedbyabigmetalbrace.Helookedupattheshopownerandsoftlyreplied,“Thelittlepuppywillneedsomeonewhounderstands!”Themanagerwascompassionate.Heinsistedthathetakethepuppyfreeofcost.Buttheboydidnotagree.Hestronglyargued,“Thelamepuppyisnotworthless.Wewillpayforitthesamepricewhichyouchargeforthehealthyones.”Finally,theshopownercompromisedandinstructedtheboyhowtotakegoodcareofthelittlepuppy.Thelittleboytookthelittlelamedoghomehappily.Eversince,theyplayedtogether；theyatetogether；sometimestheyevenslepttogether.Thelittlelameboyandthelittlelamepuppybecamebestfriends.Naturally,everybodydeservestoberecognized,respectedandloved.Everypersonhashisownvalueandshouldneverbejudgedbyhisoutwardappearance.Personswithdisabilitiesneedourspecialcare,attention,considerationandencouragement.Withoursinceresupport,theycanachievewonderfulthingsinlifeandbecomeaninspirationtoall.读后续写加强练7读后续写A范文借鉴Thensheputitdowndisappointedlyafterseeingtheprice.Lettingoutasigh,shewalkedaway,hereyesstilllingeringonit.IcouldtellhowmuchsheloveditbutIknewshewouldn’tbuy.Determinedtogiveherasurprise,Iwaiteduntilshewasoutofsightandquicklymadethepurchase.MyheartpoundedasIthoughtaboutwhatasurprisethiswouldbeonChristmasmorning.Withthefigurineinmybag,Iwenthomewithmyfamily.IplaceditunderthetreeandsettledintowaitforChristmasmorning.Thedayfinallycame.MysiblingsandItoreintothetreatsandtreasuresourparentshadlovinglyputinsidestockingsandbrightlywrappedpackages.Thenwebeganpresentinggiftstomyparents.Whenmymomunwrappedmygift,sherecognizedthefigurineinstantly,andherfacelitupwithsurpriseandjoy.Sheturnedtomeandhuggedmetightlywithtearsinhereyes.Seeingherhappymademerealizethejoyofgiving.读后续写B范文借鉴Fromthatdayon,Ididn’ttalktoAlex.Eachdayatschool,Inavigatedthehal