首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
①人一上年纪，就会觉得“记性越来越差”，真是这样吗 ②人的脑神经细胞在出生时数量最多，约有1000亿个。随着人的发育，脑细胞逐渐减少，每天要减少数万个，也就是说每秒钟都要减少一个。人们认为，随着脑神...
查看本题答案
包含此试题的试卷
中学教师招聘考试《任意集》真题及答案
点击查看
你可能感兴趣的试题
①人一上年纪就会觉得记性越来越差真是这样吗 ②人的脑神经细胞在出生时数量最多约有1000亿
①人一上年纪就会觉得记性越来越差真是这样吗 ②人的脑神经细胞在出生时数量最多约有1000亿
①人一上年纪就会觉得记性越来越差真是这样吗 ②人的脑神经细胞在出生时数量最多约有1000亿
选择 储量 放映
判断 收集 放映
选择 存储 回放
判断 存储 回放
①人一上年纪就会觉得记性越来越差真是这样吗②人的脑神经细胞在出生时数量最多约有1000亿个随着人的发
人类与某些病毒的斗争是长期的人类与这些病毒能长期共存的原因是①病毒的毒性越来越强人对该病毒的免疫力越
①③
②④
①②
③④
①人一上年纪就会觉得记性越来越差真是这样吗②人的脑神经细胞在出生时数量最多约有1000亿个随着人的发
选择 储量 放映
判断 储量 放映
选择 存储 回放
判断 存储 回放
①人一上年纪就会觉得记性越来越差真是这样吗②人的脑神经细胞在出生时数量最多约有1000亿个随着人的发
人的脑神经细胞有1000亿个，而与记忆有关的只占百分之几，但它会随着人的发育不断减少，从而导致记忆力减退
“海马”是人控制记忆的中枢，位于接收传送信息、并保管经过筛选后的记忆信息的大脑侧头叶的紧内侧
在一个月内侧头叶对外界送来的信息经过“调度”筛选之后，把重要的部分交回海马保管，而其余部分就被自动删除了。所以，重要的事情在记住后必须在一个月内复习一遍
“人老记性差”是一种错觉，根据“老鼠实验”和麦奎尔的调查，人越老“海马”越发达，所以记忆力越强
①人一上年纪就会觉得记性越来越差真是这样吗②人的脑神经细胞在出生时数量最多约有1000亿个随着人的发
①人一上年纪就会觉得记性越来越差真是这样吗 ②人的脑神经细胞在出生时数量最多约有1000亿
①人一上年纪就会觉得记性越来越差真是这样吗②人的脑神经细胞在出生时数量最多约有1000亿个随着人的发
热门试题
更多
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 1
Believeitornotopticalillusioncancuthighwaycrashes. Japanisacaseinpoint.Ithasreducedautomobilecrashesonsomeroadsbynearly75percentusingasimpleopticalillusion.Butstripescalledchevronspaintedontheroadsmakedriversthinkthattheyaredrivingfasterthantheyreallyareandthusdriversslowdown. NowtheAmericanAutomobileAssociationFoundationforTrafficSafetyinWashingtonD.C.isplanningtorepeatJapan’ssuccess.Startingnextyearthefoundationwillpaintchevronsandotherpatternsofstripesonselectedroadsaroundthecountrytotesthowwellthepatternsreducehighwaycrashes. Excessivetoogreatspeedplaysamajorroleinasmuchasonefifthofallfataltrafficaccidentsaccordingtothefoundation.Tohelpreducethoseaccidentsthefoundationwillconductitstestsinareaswherespeed-relatedhazardsdangerarethegreatestcurvesexitslopestrafficcirclesandbridges. Somestudiessuggestthatstraighthorizontalbarspaintedacrossroadscaninitiallycuttheaveragespeedofdriversinhalf.Howevertrafficoftenreturnstofullspeedwithinmonthsasdriversbecomeusedtoseeingthepaintedbars. Chevronsscientistssaynotonlygivedriverstheimpressionthattheyaredrivingfasterthantheyreallyarebutalsomakealaneappeartobenarrower.Theresultisalongerlastingreductioninhighwayspeedandthenumberoftrafficaccidents. Whatdoestheauthorsayaboutstraighthorizontalbarspaintedacrossroads
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 19
Somespidershuntonthegroundothersbuildwebstotraptheirfoodbutthegrasswaterspidercatchesitspreybyrunningalongthesurfaceofthewater. Thisspecialwaterspiderlivesonthegrassybanksofstreamswheremosquitoesdamselfliesandotherinsectscometofeedandbreed. AlthoughitisoneofthelargestspidersinNewZealandithasanunusualability.Itdoesn’tdisturbthewaterasitwaitsforitsmealandthereisbarelyaripplewhenitskimsacrossthesurfaceatlightningspeedtocatchitsprey. Grasswaterspidersdealswiftlywithlargerinsectslikedamselfliesbypullingtheirheadsunderthewaterandholdingthemthereuntiltheydrown. Afteramealthegrasswaterspiderspendsuptohalfanhourgroomingitself.Itwipesitseighteyesbrushesitsantennaeandtakesspecialcaretocleanthehairsonitsbody. Itisthehairsthattraptinybubblesofairsothatthespidercanrundownabladeofgrassandstayunderwaterforuptoanhourwhenitisfrightened.Thehairsalsokeepthespiderdryevenunderwater. Itisonlywhenthefemalespideriscaringfortheyoungthatshedoesnothuntonthewater.Aftermatingsheproducesalargeeggsacwhichshecarriesaroundforfiveweeks.Oncetheeggsstarttohatchsheattachesthesactosomebladesofgrassorathistle.Shethentearsthesacopenandreleasesthetinyspidersintothenurseryweb. Howdoesthegrasswaterspiderkillitsprey
InOctober1961atCrowleyFieldinCincinnatiOhioanolddeafgentlemannamedWilliamE.HoystooduptothrowthefirstballoftheWorldSeries.MostpeopleatCrowleyFieldonthatdayprobablydidnotrememberHoybecausehehadretiredfromprofessionalbaseball58yearsearlierin1903.Howeverhehadbeenanoutstandingplayerandthedeafpeoplestilltalkabouthimandhisyearsinbaseball. WilliamE.HoywasborninHouckstownOhioonMay231862.Hebecamedeafwhenhewastwoyearsold.HeattendedtheColumbusOhioSchoolforthedeaf.Aftergraduationhestartedplayingbaseballwhileworkingasashoemaker. Hoybeganplayingprofessionalbaseballin1886forOshkoshWisconsinoftheNorthwesternLeague.In1888hestartedasanoutfielderwiththeoldWashingtonSenators.Hissmallfigureandspeedmadehimanoutstandingbaserunner.Hewasverygoodatstealingbasesduringhiscareer.Inthe1888majorleagueseasonhestole82bases.HewasalsotheSenators’leadinghitterin1888.Hoywascleverandhethrewright-handedandbattedleft-handed.OnJune191889hethrewoutthreebattersattheplatefromhisoutfieldposition. ThearmsignalsusedbyjudgestodaytoshowballsandstrikesbeganbecauseofHoy.Thejudgeliftedhisrightarmtoshowthatthepitchwasastrikeandhisleftarmtosignalthatitwasaball. FormanyyearspeopletalkedaboutHoy’slastballgamein1903.HewasplayingforLosAngelesofthePacificCoastWinterLeague.ItwasamemorablegamebecauseHoyhitawonderfulballwhichwonthegame.Itwasaveryfoggydayandthereforeveryhardtoseetheball.IntheninthinningwithtwomenoutHoymanagedtocatchaflyballtomakethethirdoutinspiteofthefog.LosAngelesdefeatedtheiroppositionandwonthegame. AfterheretiredHoystayedbusy.HeranadairyfarmnearCincinnatifor20years.Healsobecameapublicspeakerandtraveledgivingspeeches.Untilafewyearsbeforehisdeathhetook4～10milewalksseveralmorningsaweek.OnDecember151961WilliamHoydiedattheageof99. Thispassageismainlyabout
请对以下案例进行评析教学基本信息教材及课题新起点英语二年级下册第13单元第1课Unit13TimeLesson73教学内容5个单词clocktimebreakfastLunchsupper和两个功能句型WhattimeisitIt’s______o’clock.的教学教学目标与重难点教学目标·通过参与导入活动学生能够理解问句Whattimeisit的含义·通过对数字的复习操练及clock的认读学生能够顺利表达整点时间·通过讨论一日三餐的食谱学生能够正确认读breakfastLunchsupper理解词义·通过学说歌谣和连线练习学生初步形成珍惜时间合理安排时间的概念·通过参与游戏学生能够自然地使用Whattimeisit问询时间并做出相应应答教学重点1.时间的整点表达即It’s______o’clock2.一日三餐即breakfastlunch与supper的理解与认读教学难点1.问句Whattime!isit中time的m发音和Whattime的正确朗读2.breakfast的发音教学准备教师准备Lesson73的录音与What疑问句有关的单词卡片及图片模拟时钟食物图片头饰迪斯尼英语相关视频学生准备无教学过程与设计意图教学过程设计意图1.Warmingup6分钟1师生互致问候2师生演唱Whoisnumber1教师面向全班唱问WhoisNo.11号学生起立应唱IamNo.1.教师接唱LookatNo.1.全班齐唱He/Sheisnumber1.Yeshe/sheisnumber1.教师接着唱问以此类推一直问到No.123师生问答教师用What______isit提问横线处为dayseasonfoodfruitcolour和shape这样就构成了七个问句教师提问时呈现相应的图片引导学生回答教师最后呈现一个正面为黄色小猫背面为时钟的圆形教具提问Whatanimal/colour/shapeisit2.NewLesson22分钟1学习新单词time教师让学生猜圆形背后是什么引出单词clock由Theclockcantellustime.引出单元话题time教学单词clock和time2引出功能句型教师在实物钟表上拨出整点时间用英语表述板书It’s______o’clock.师生利用钟表问询时间练习功能句型WhattimeisitIt’s______o’clock.教师适时板书Whattimeisit3教学PartA放三遍录音第一遍学生听音填空第二遍学生听音检查填空结果第三遍学生跟读4教学表示一日三餐的单词教师呈现一些图片问Whatdoyouhaveforbreakfast学生选图后教师引导学生说It’s7o’clock.Wehaveeggsbreadandmilkforbreakfast.依此类推3.Practice6分钟1连线练习学生两人一组讨论完成教师下发的课堂练习2选两三组学生展示结果核对答案3德育渗透珍惜时间合理利用时间生活学习要有规律4.ConsolidationandRevision5分钟老狼抓小兔游戏教师扮演大灰狼通过抽学号决定游戏人选组成10人纵队学生齐问Wolfwolfwhattimeisit教师答It’sIo’clock.1号学生被抓出列5.SummaryandHomework1分钟1寒暄问好开始教学2在以往的教学中学生表达整点时间有困难的主要原因不是不会说句型而是一时之间说不出数字故用数字歌复习数字的表达为整点表达做铺垫同时活跃课堂气氛激发学习兴趣3利用what问句就已学话题交互问答逐步引出询问时间的新句型帮助学生感知新句型的结构和含义突破Whattime的发音教学难点同时复习表示食物水果的词汇为后续学习一日三餐的词汇做铺垫1以猜物游戏激发学生兴趣引导学生将注意力集中到新单词clock的学习上借助实物钟表帮助学生理解抽象概念time适时板书clock为教学整点时间表达中的o’clock做铺垫2用实物呈现整点时间引导学生问答能直观地呈现句义有助于学生理解强调time中m的发音和whattime的朗读突破教学难点3布置填空和检查任务督促学生集中注意力听录音用跟读帮助学生感知韵律模仿发音4为一日三餐配食谱可以帮助学生理解单词含义复习巩固食物水果单词将语言学习与学生生活紧密相连以不同形式手表闹钟电子表呈现时间将语言学习和生活融合尽可能创设真实的交际情境并适时渗透德育教育通过游戏创设模拟情境帮助学生较自然地运用新学句型进行交际板书设计略教学反思略
Europeanfootballisplayedin80countriesitthemostpopularsportintheworld.
—IwonderwhyMr.Greenlooksquietinclass.—I'mnotsurebutheasmallaccidentdrivinghere.
Allthisthatknowledgecomesfrompractice.
英语课程倡导讲解型的教授教化模式
Believeitornotopticalillusioncancuthighwaycrashes. Japanisacaseinpoint.Ithasreducedautomobilecrashesonsomeroadsbynearly75percentusingasimpleopticalillusion.Butstripescalledchevronspaintedontheroadsmakedriversthinkthattheyaredrivingfasterthantheyreallyareandthusdriversslowdown. NowtheAmericanAutomobileAssociationFoundationforTrafficSafetyinWashingtonD.C.isplanningtorepeatJapan’ssuccess.Startingnextyearthefoundationwillpaintchevronsandotherpatternsofstripesonselectedroadsaroundthecountrytotesthowwellthepatternsreducehighwaycrashes. Excessivetoogreatspeedplaysamajorroleinasmuchasonefifthofallfataltrafficaccidentsaccordingtothefoundation.Tohelpreducethoseaccidentsthefoundationwillconductitstestsinareaswherespeed-relatedhazardsdangerarethegreatestcurvesexitslopestrafficcirclesandbridges. Somestudiessuggestthatstraighthorizontalbarspaintedacrossroadscaninitiallycuttheaveragespeedofdriversinhalf.Howevertrafficoftenreturnstofullspeedwithinmonthsasdriversbecomeusedtoseeingthepaintedbars. Chevronsscientistssaynotonlygivedriverstheimpressionthattheyaredrivingfasterthantheyreallyarebutalsomakealaneappeartobenarrower.Theresultisalongerlastingreductioninhighwayspeedandthenumberoftrafficaccidents. Theadvantageofchevronsoverstraighthorizontalbarsisthattheformer
—isMr.Blacklike—Heisaverynicepersonandofthetwoengineers.
InOctober1961atCrowleyFieldinCincinnatiOhioanolddeafgentlemannamedWilliamE.HoystooduptothrowthefirstballoftheWorldSeries.MostpeopleatCrowleyFieldonthatdayprobablydidnotrememberHoybecausehehadretiredfromprofessionalbaseball58yearsearlierin1903.Howeverhehadbeenanoutstandingplayerandthedeafpeoplestilltalkabouthimandhisyearsinbaseball. WilliamE.HoywasborninHouckstownOhioonMay231862.Hebecamedeafwhenhewastwoyearsold.HeattendedtheColumbusOhioSchoolforthedeaf.Aftergraduationhestartedplayingbaseballwhileworkingasashoemaker. Hoybeganplayingprofessionalbaseballin1886forOshkoshWisconsinoftheNorthwesternLeague.In1888hestartedasanoutfielderwiththeoldWashingtonSenators.Hissmallfigureandspeedmadehimanoutstandingbaserunner.Hewasverygoodatstealingbasesduringhiscareer.Inthe1888majorleagueseasonhestole82bases.HewasalsotheSenators’leadinghitterin1888.Hoywascleverandhethrewright-handedandbattedleft-handed.OnJune191889hethrewoutthreebattersattheplatefromhisoutfieldposition. ThearmsignalsusedbyjudgestodaytoshowballsandstrikesbeganbecauseofHoy.Thejudgeliftedhisrightarmtoshowthatthepitchwasastrikeandhisleftarmtosignalthatitwasaball. FormanyyearspeopletalkedaboutHoy’slastballgamein1903.HewasplayingforLosAngelesofthePacificCoastWinterLeague.ItwasamemorablegamebecauseHoyhitawonderfulballwhichwonthegame.Itwasaveryfoggydayandthereforeveryhardtoseetheball.IntheninthinningwithtwomenoutHoymanagedtocatchaflyballtomakethethirdoutinspiteofthefog.LosAngelesdefeatedtheiroppositionandwonthegame. AfterheretiredHoystayedbusy.HeranadairyfarmnearCincinnatifor20years.Healsobecameapublicspeakerandtraveledgivingspeeches.Untilafewyearsbeforehisdeathhetook4～10milewalksseveralmorningsaweek.OnDecember151961WilliamHoydiedattheageof99. InwhichorderdidthefollowingthingshappeninHoy’slife a.Hoyworkedasashoemaker. b.Hoybegantorunadiaryfarm. c.Hoyplayedamemorablegameintheheavyfog. d.HoythrewthefirstballoftheWorldSeries. e.Hoybecamedeaf.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 17
I'vevisitedalotofdifferentplacesandstayedinalotofdifferenthotelsbutnothingelsethison.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 13
TheRedCrosswouldhaveanothermilliondollarstobuymedicinefortherefugeesintheIndianOceanseaquake.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 3
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 15
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 11
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 7
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 9
Believeitornotopticalillusioncancuthighwaycrashes. Japanisacaseinpoint.Ithasreducedautomobilecrashesonsomeroadsbynearly75percentusingasimpleopticalillusion.Butstripescalledchevronspaintedontheroadsmakedriversthinkthattheyaredrivingfasterthantheyreallyareandthusdriversslowdown. NowtheAmericanAutomobileAssociationFoundationforTrafficSafetyinWashingtonD.C.isplanningtorepeatJapan’ssuccess.Startingnextyearthefoundationwillpaintchevronsandotherpatternsofstripesonselectedroadsaroundthecountrytotesthowwellthepatternsreducehighwaycrashes. Excessivetoogreatspeedplaysamajorroleinasmuchasonefifthofallfataltrafficaccidentsaccordingtothefoundation.Tohelpreducethoseaccidentsthefoundationwillconductitstestsinareaswherespeed-relatedhazardsdangerarethegreatestcurvesexitslopestrafficcirclesandbridges. Somestudiessuggestthatstraighthorizontalbarspaintedacrossroadscaninitiallycuttheaveragespeedofdriversinhalf.Howevertrafficoftenreturnstofullspeedwithinmonthsasdriversbecomeusedtoseeingthepaintedbars. Chevronsscientistssaynotonlygivedriverstheimpressionthattheyaredrivingfasterthantheyreallyarebutalsomakealaneappeartobenarrower.Theresultisalongerlastingreductioninhighwayspeedandthenumberoftrafficaccidents. Thepassagemainlydiscusses
教授教化设计的好教授教化就必定能成功
Theaveragepersonlearnsmostofthe30000～40000wordswhosemeaningsheorsherecognizesbyhearingthemorgettingfamiliarwiththeminthecontextorsimplyabsorbingthemwithoutconsciouseffort.Thebestwaytobuildagoodvocabularythereforeistoreadagreatdealandtoparticipateinalotofgoodtalks.Therearerelativelyfewwordsthatwelearnpermanentlybypurposefullyreferringtodictionariesorkeepingwordlists.Howevereventhoseextrafewareofvalueandnoonewillmakeamistakebyworkingondevelopingalargervocabulary.Herearesomesuggestionsofhowtodoit. Readplentyofgoodbooks.Whenyoucomeacrossanewwordoranewmeaningofanoldwordstopandseeifyoucanunderstanditfromitscontext.Ifyoucan’tandifyoucanmanagewithoutinterruptingthethoughtofthebooktoomuchlookitupinadictionaryorasksomebodyandthenrepeatitsmeaningtoyourselfacoupleoftimes.Ifyouarereallyconscientiouswritethewordanditsmeaninginapersonalvocabularylist—preferablyusingitinasentenceoryoucankeepaspecialvocabularynotebook.Gooverthelistfromtimetotime.Furthertrytouseanewwordinwritingorconversationafewtimesoverthenextseveraldays. Listentogoodtalksandbealerttonewwordsyouhearortonewmeaningsofwordsyoualreadyknow.Thentreatthemjustasyoutreatthenewwordsyouread. Learnandbealerttothepartsofwords:prefixessuffixesandroots.Knowingthemenablesyoutomakeintelligentguessesaboutthemeaningofwords. IfyouarestudyingaforeignlanguagebealerttowordsinthatlanguagewhichrelatetowordsinEnglish.Englishhasinheritedorborrowedmuchofitsvocabularyof500000～600000wordsfromLatinGreekFrenchSpanishandGerman. Inthefourthparagraphthewordthemrefersto
Iyouahappybirthday.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious. The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood:Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichcouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 5
Somespidershuntonthegroundothersbuildwebstotraptheirfoodbutthegrasswaterspidercatchesitspreybyrunningalongthesurfaceofthewater. Thisspecialwaterspiderlivesonthegrassybanksofstreamswheremosquitoesdamselfliesandotherinsectscometofeedandbreed. AlthoughitisoneofthelargestspidersinNewZealandithasanunusualability.Itdoesn’tdisturbthewaterasitwaitsforitsmealandthereisbarelyaripplewhenitskimsacrossthesurfaceatlightningspeedtocatchitsprey. Grasswaterspidersdealswiftlywithlargerinsectslikedamselfliesbypullingtheirheadsunderthewaterandholdingthemthereuntiltheydrown. Afteramealthegrasswaterspiderspendsuptohalfanhourgroomingitself.Itwipesitseighteyesbrushesitsantennaeandtakesspecialcaretocleanthehairsonitsbody. Itisthehairsthattraptinybubblesofairsothatthespidercanrundownabladeofgrassandstayunderwaterforuptoanhourwhenitisfrightened.Thehairsalsokeepthespiderdryevenunderwater. Itisonlywhenthefemalespideriscaringfortheyoungthatshedoesnothuntonthewater.Aftermatingsheproducesalargeeggsacwhichshecarriesaroundforfiveweeks.Oncetheeggsstarttohatchsheattachesthesactosomebladesofgrassorathistle.Shethentearsthesacopenandreleasesthetinyspidersintothenurseryweb. Thepassagetellsusthatthespider
AcharacteristicofAmericanculturethathasbecomealmostatraditionistorespecttheself-mademan—themanwhohasrisentothetopthroughhisowneffortsusuallybeginningbyworkingwithhishands.WhiletheleaderinbusinessorindustryorthecollegeprofessoroccupiesahighersocialpositionandcommandsgreaterrespectinthecommunitythanthecommonlaboreroreventheskilledfactoryworkerhemaytakepainstopointoutthathisfatherstartedlifeinAmericaasafarmerorlaborerofsomesort. ThisattitudetowardmanuallaborisnowstillseeninmanyaspectsofAmericanlife.Oneisinvitedtodinneratahomethatisnotonlycomfortablybutevenluxuriouslyfurnishedandinwhichthereiseveryevidenceofthefactthatthefamilyhasbeenabletoaffordforeigntravelexpensivehobbiesandcollegeeducationforthechildren;yetthehostessprobablywillcookthedinnerherselfwillserveitherselfandwillwashdishesafterwardfurthermorethedinnerwillnotconsistmerelyofsomethingquicklyandeasilyassembledfromcontentsofvariouscansandacakeorapieboughtatthenearbybakery.Onthecontrarythehostessusuallytakesprideincarefulpreparationofspecialdishes.Aprofessionalmanmaytalkaboutwashingthecardigginginhisflowerbedspaintingthehouse.Hiswifemayevenhelpwiththesethingsjustasheoftenhelpsherwiththedishwashing.Thesonwhoisawayatcollegemaywaitontableandwashdishesforhislivingorduringthesummerhemayworkwithaconstructiongangonahighwayinordertopayforhiseducation. Accordingtothepassagethehostesscooksdinnerherselfmainlybecause
Theaveragepersonlearnsmostofthe30000～40000wordswhosemeaningsheorsherecognizesbyhearingthemorgettingfamiliarwiththeminthecontextorsimplyabsorbingthemwithoutconsciouseffort.Thebestwaytobuildagoodvocabularythereforeistoreadagreatdealandtoparticipateinalotofgoodtalks.Therearerelativelyfewwordsthatwelearnpermanentlybypurposefullyreferringtodictionariesorkeepingwordlists.Howevereventhoseextrafewareofvalueandnoonewillmakeamistakebyworkingondevelopingalargervocabulary.Herearesomesuggestionsofhowtodoit. Readplentyofgoodbooks.Whenyoucomeacrossanewwordoranewmeaningofanoldwordstopandseeifyoucanunderstanditfromitscontext.Ifyoucan’tandifyoucanmanagewithoutinterruptingthethoughtofthebooktoomuchlookitupinadictionaryorasksomebodyandthenrepeatitsmeaningtoyourselfacoupleoftimes.Ifyouarereallyconscientiouswritethewordanditsmeaninginapersonalvocabularylist—preferablyusingitinasentenceoryoucankeepaspecialvocabularynotebook.Gooverthelistfromtimetotime.Furthertrytouseanewwordinwritingorconversationafewtimesoverthenextseveraldays. Listentogoodtalksandbealerttonewwordsyouhearortonewmeaningsofwordsyoualreadyknow.Thentreatthemjustasyoutreatthenewwordsyouread. Learnandbealerttothepartsofwords:prefixessuffixesandroots.Knowingthemenablesyoutomakeintelligentguessesaboutthemeaningofwords. IfyouarestudyingaforeignlanguagebealerttowordsinthatlanguagewhichrelatetowordsinEnglish.Englishhasinheritedorborrowedmuchofitsvocabularyof500000～600000wordsfromLatinGreekFrenchSpanishandGerman. Accordingtothispassagethebestwaytobuildagoodvocabularyis
热门题库
更多
幼儿教师招聘考试
小学教师招聘考试
中学教师招聘考试
中小学校长招聘考试
体育教师招聘考试
信息技术教师招聘考试
音乐教师招聘考试
邮政银行招聘考试
邮政营业员考试
邮政小额贷款信贷员考试
邮政通信信息业务员考试
集邮业务员考试
快递业务员考试
邮政储汇业务员考试
邮政代理金融业务网点考试
邮件分拣员考试
湘公网安备 43130202000226号