高中英语 Unit4Using language课件 新人教版必修2.ppt

人教课标高一必修2unit4 animalextinction dinosaurisananimalthatwecannotseeontheearthnow whatweseeinthemuseumarethefossilsofmanykindsofdinosaurs somedinosaurshavelongnecksandtails whileotherslooklikebirds enjoythevideo 1 whendiddinosaurslive tensofmillionsofyearsago 2 whendiddinosaursdieout about65millionyearsago readthetextcarefullyandfillintheblanks china eggs rare climb last diedout how thedodo thedodo therearemanydifferentspeciesofdinosaurandallofthemhavebeenfoundinchina notlongago ararenewspeciesofbird likedinosaurwasdiscoveredinhenanprovince several liaoning 3 somescientistsaresuredinosaursdiedoutbecausetheearthgottoohotforthedinosaurstoliveonanymore 4 dinosaursdiedoutquicklyabout65millionyearsagoandmanyanimalshavediedoutinthesameway think dinosaursdiedoutquicklyabout65millionyearsagoandmanyanimalshavediedoutinthesameway thedodoisoneofthem pleaselistentoastoryofthedodoandhowitdisappearedfromtheearth dodo 渡渡鸟 dodo鸟是一种不会飞的鸟 仅产于毛里求斯 拥有肥胖的身子和巨大的嘴 16世纪后期 欧洲殖民者来到了毛里求斯 不会飞又跑不快的dodo鸟很快成为欧洲人来到岛上后主要的食物来源 人们开始大量的滥捕滥杀可怜的dodo鸟 有时每天可以捕杀到几千只到上万只 由于过度的捕杀 很快岛上dodo鸟变得越来越少 1681年 最后一只dodo鸟被残忍的杀害后 从此 地球上再也见不到这种东西了 除非是在博物馆的图片中 listentothetapeandchoosethesentencewhichgivesthemainideaofthestory saywhatiswrongwiththeotherthree thisstoryisabouthowfoolishthedodowas 2 thisstoryisabouthowthedodobecameextinct 3 thisstoryisabouthowthedodoandmanbecamefriends 4 thisstoryisabouthowtheotherbirdsandanimalstriedtosavethedodo number2iscorrect number1iswrong itisnotfairtoblamethedodoforhisdisappearance number3onlyexplainshalfthestory thedodoandmandidbecomefriendsbutonlybecausemanwantedtokillallthedodosaseasilyaspossible number4iswrongbecausetheotheranimalsandbirdsdidnotdomuchtosavethedodo theywarnedhimbutdidnothelphim listentothetapeandchoosethecorrectanswertocompleteeachsentence 1 thedodois a fierceb unkindc friendlyd foolish 2 hewantstobelievethatmanistellingthetruthbecause a manisfriendlyb hethinksmanisfriendlyc hethinksthebearsandmonkeyslied manishisbestfriend 3 hedidn trealizewhohadkilledmanyofhisfriendsuntil a mantoldhimthetruthb theotherbirdstoldhimc hesawhowhisfriendwasbeingkilledbymand themonkeystoldhim fierceadj 凶猛的 好斗的thehouseisguardedbyafiercedog 激烈的 猛烈的whathesaidmetwithfierceopposition 他的话语遭到激烈反对 酷烈的thisheatisreallyfierce 这样的高温真叫人难受 inpairschooseanotherendangeredanimalwhichyouknowabout analysewhythisanimalisendangered isitbeinghuntedandkilled doesitnothaveenoughfood isitbecauseitshabitatisbeingthreatened intention purpose i mgoingto tohelp save iintend mean planto toprotect from iwill sothat discusswhatyoumightdotosaveit thesephrasemaybeusefultoyou i drathernot i dliketo i mreadyto ifeellike inorderto butdo toteachthemalesson topunishthosewhodoharmtowildlife theylivedontheearthtensofmillionsofyearsago longbeforehumanscameintobeingandtheirfutureseemedsecureatthattime 本句是一个由and连接的并列句 其中 longbefore引导时间状语从句 进一步解释说明tensofmillionsofyearsago 意为 在 之前很久 注意 beforelong意为 不久以后 e g iknewtomlongbeforeiknewyou 我在认识你之前很久就认识汤姆了 wehopetofinishourexperimentbeforelong 我们希望不久就把实验做完 it longbeforewe theresultoftheexperiment a willnotbe willknowb is willknowc willnotbe knowd is know ontheearth在地球上 在earth sun moon等表达世界上独一无二的名词前 要加the comeintobeing的意思是 开始存在 发生 e g 我们不知道这世界是什么时候存在的 wedon tknowwhentheworldcameintobeing 2 whenscientistsinspectedthebones theyweresurprisedtofindthatthesedinosaurscouldnotonlyrunliketheothersbutalsoclimbtrees 本句中的tofindthat 是不定式作原因状语 不定式用来表原因时 常修饰表示情感 心理状态 性格等的形容词 如 happy glad lucky fortunate surprised angry anxious cruel clever frightened shocked sorry eager proud disappointed foolish impatient unwise naughty等 如 weweresurprisedtoseehim 我们真想不到会见到他 weareproudtobeyoungpeopleofnewchina 作为新中国的青年 我们感到很骄傲 youwerefoolishtoactlikethat 你那样做很愚蠢 3 somescientiststhinkitcameafteranunexpectedincidentwhenahugerockfromspacehittheearthandputtoomuchdustintotheair 本句中when引导定语从句 其先行词为incident 关系副词when的先行词一般是表时间的名词 如 hecamelastnightwheniwasout 但有时并不直接是表时间的名词 如 in1921einsteinwonthenobelprize andwashonoredingermanyuntiltheriseofnazismwhenhewasdrivenfromgermanybecausehewasajew 1921年爱因斯坦获得了诺贝尔奖 他在德国很受尊敬 纳粹上台后由于他是犹太人而被赶出了德国 4 accordingtoaunreport accordingto根据 据 说e g accordingtojohn thebankclosesat4p m eachmanwillbepaidaccordingtohisability i 根据下列各句句意及所给单词的汉语提示 写出所缺单词的正确形式 1 mysoncanremembereverysmall 事件 ingreatdetail 2 itwasoneoftheregion smost 猛烈的 stormsinyears fierce incident 3 thewindwasblowing 尘土 andleavesupfromtheground 4 peoplewantlovestorieswithhappy 结局 5 myfather 检查 thetreeandfoundthattherewasindeedabranchbrokenoff inspected dust endings ii 选用方框内合适的词或短语 并用其适当形式填空 1 whatdoyou wedotoprotectwildlife 2 nooneknowswhensuchacustom suggest cameintobeing 3 ourrecords thebooksyouhaveborrowedshouldnowbereturnedtothelibrary 4 meizhouisregardedasthe footballinguangdongprovince accordingto homeof iii 根据汉语提示 完成下列句子 1 在过去的十年中 大学生花在电脑上的时间一直在增加 theamountoftimeacollegestudentspendsonthecomputerhasbeenincreasing inthepast lasttenyears 2 不久前 我有一次难忘的经历 ih