2023-2024学年外研版（2019） 必修第三册 Unit 3 The world of Science Understanding ideas课时练（含答案）.docx

Startingout&UnderstandingideasI.单词拼写1. Mom,pleaseremembertobuytwomedium-sized（电池）formyalarmclockwhenyougotothestore.2. Wheneverthereisasaleinthesupermarket,mymotheralwaysendsupbuyinggood_（物品）atalowprice.3. Hehasa（渴望）forsuccessthoughhehasfailedmanytimes.4. Suddenly,awhitelight（射出）towardsmyeyes,andIcouldseenothing.5. Ifyouwanttostartthemachine,（按）thebutton.6. Ifyouareeasytogetlost,yo,dbettertakea（指南针）withyou.7. Home-workingopportunitiesand（灵活的）workinghoursaretopconcernsfortheworkingmothers.8. Alargefirmis（有能力的）ofprovidingawiderrangeofservicesforthepublic.H.单句语法填空1. Developingahabitofplayingteamsportscanreduce（press）andkeepfit.2. Animalsinthezoohavelostthe（capable）tocatchfoodforthemselves.3. Aslongaswestrugglehard,ourdreamthatseemsnottoberealisedforever,canturninto（realise）soonerorlater.4. The（flexible）ofdistancelearningwouldbeparticularlysuitedtobusymanagers.5. Scientistsandengineersaroundtheworldhavemadegreat（advance）inArtificialIntelligence.6. ThemanagerthoughtPaulwasthebestpersonforthejobtermsofbothhisabilityandhisquality.7. Asweallknow,hardworkisessentialforourcareeranditcanleadsuccess.8. Thankshisgiftforlearningforeignlanguages,Billcancommunicatewithpeoplefreelyinthiscountrynow.9. Thehotelitselfcanaccommodate80guestsandaddition,thereareseveralself-cateringapartments.10. Ifyousaytheword“communication”,mostpeoplethinkwordsandsentences.IIL单句写作1 .昨天的交通事故到底是在哪里发生的？theroadaccidenthappenedyesterday?2 .有那么多事情要做,她今天上午没有时间去购物了.,shewon,thavetimetogoshoppingthismorning.3 .迈克有可能提前完成这项任务。thetaskaheadoftime.4 .很明显,五年级的学生比一年级的学生要高。It,sobviousthatstudentsinGrade5thoseinGrade1.5 .依我看,一个人的成功不能总是从钱的角度来衡量。Inmyopinion,one,ssuccesscannotalwaysbemeasured.IV.阅读理解A17-year-oldArulMathurhasdevelopedanewfireextinguisher（灭火器）tohelpputoutwildfiresnearhouses.ThefireextinguisheriscalledtheFireActivatedCanisterExtinguisher（FACE）.Overthepastthreeyears,therehavebeenalmost7,500,000acresofwildfiresinCaliforniaalone,whichdeInoIiShnearly50,000buildings.Thishascausedmanylocalpeopletobecomehomeless.ArulgrewupinNewJerseywherewildfireswerehardlyheardof.AftermovingtoCaliforniain2012,hebegantohearaboutwildfires.Inthesummerof2019,awildfirethreatenedhisfamilytoleavetheirhome.Uponquestioninghimselfonthereasonbehindthespreadofwildfires,Arulrealizedthefact.Bythetimefirefightersgetthenoticeofawildfire,thewildfirehasalreadygrownoutofcontrol.FACEcanhelpstopwildfiresbeforetheyburnhouses.Itputsoutwildfiresbyitselfaftersensingextremeheatwithouthumans.Itcanstandtheextremeconditionwhichisahigh-tCmperatureenvironment.Moreover,ithasabracket（支架）thatallowsittobeplacedinavarietyofhigh-riskareas.Unliketraditionalfireextinguishers,FACEhasamixtureofwaterandanenvironmentally-friendlyfireretardant（阻燃剂）withinit.longer have to rely on the fire focus on controlling the running a pilot test with some said, “In general, FACE has beenArulsaid,“IthinkthatbyowningFACE,peoplenodepartmenttosavetheirhouses."Firefighterscouldfire,whilepeoplecouldprotecttheirhomes.HeisnowofhisfriendsfromthemediaplatformKickstarter.Heverywell-receivedthroughthemediaplatform.”Arulhasgreatinterestinfiresafetyandpreventionandactivelysearchesforwaystospreadawareness.Helovestoexploreadvancesintechnologyandheishappytogivecommunitiessomeadviceonfireprevention.Arulisnowplanningtodeveloplargerunitsforspecificuseinforestapplications.Hesaid,wHumanshaveseengreatprogressintechnology.Now,weneedtousepresenttechnologytodevelopmoreenvironmentally-friendlysolutionsforfireprevention.”1. Whatdoestheunderlinedworddemolishwinparagraph2probablymean?A.Destroy.B.Cause.C.Protect.D.Build.2. WhatcanbeknownaboutArul,Sfireextinguisher?A. Ithastoworkwiththehelpofhumans.B. Itdoesverylittleharmtotheenvironment.C.Itcannotstandhightemperatures.D.Itusesthesamematerialsasatraditionalone.3. WhatdoesArulintendtodoatthemoment?A. Setupamediaplatformwithhisfriends.B. Keeppeopleupdatedonnewtechnologies.C. DevelophugerFACEforforestapplications.D. Makegreatercontributionstocleanenergy.4. WhichofthefollowingcanbeusedtobestdescribeArul?A. Friendlyandwealthy.B. 1.azybutcreative.C. Hard-workingbutselfish.D. Cleverandhelpful.BSometimesapersonwhothinksinanunusualwaycanlookattheworldfromadifferentpointofview.SuchwasRichardPhillipsFeynman,arolemodelchangemaker.Bornin1918,hebeganshowingsomeunusualqualities.ThefirstsignofFeynman,suniquequalitieswasthathehadn,tyetspokenbyagethree.ButyoungFeynmanshowedatalentformathandengineering.Heenjoyedrepairinghouseholdobjects,andbuiltasimplelaboratoryinhisroom.Bythetimehewasinhighschool,hewasexperimentingthingswhichwereonlytaughttocollegestudents.AfterFeynmangraduatedfromhighschoolin1939,hestudiedatMIT.Despitethefactthathisgradesinscienceandmathwere“thebestthatwe,veseen”,accordingtoPrinceton,hewasalmostrejectedduetohisverypoorgradesinwritingandhisJewishreligion.Finally,hewasacceptedandcontinuedtostudyphysicsatPrincetonwherehegothisPhD.Hislecturesattractedmanygreatscientistsofthetime,includingAlb