九年级英语上册Unit5LookintoScienceLesson28TheStudyofLivingThings冀教版.ppt

Lesson28,Unit5LookintoScience,5,Unit,Lesson28TheStudyofLivingThings,学习目标,objectives,Tolearnsomenewwords:biology，fantastic,butterflyTounderstandthepassage.TolearnAttributiveclause.,Leadin,1.Wouldyouliketobeabiologistwhenyougrowup?Whyorwhynot?2.Whatmysteriesofnaturedoyouknowabout?,Thinkaboutit,生物蝴蝶迁徙;移居奇异的完全地孙子(女)；外孙(女)雌性马利筋（一种植物）化学物质令人费解的,kweedn.chemicaln.puzzlingadj.,Words,Pre-reading,1.引起某人的注意2.回到、返回3.多达4.下蛋5.在大学里6.小片的森林7.动身去某地,drawonesattention,Usefulexpressions:,returnto,asmanyas,layeggs,atauniversity,smallpieceofforest,leavefor,While-reading,1.IntheUnitedStatesandMexico,farmersusechemicalsthatkillmilkweed.2.Dothefemaleslayeggsononlyoneplant?_.3.WhatdoesDr.ChipTaylorstudy?_.4.Here,asmanyas_butterfliesspendthewinter.5.InMexico,thebutterfliesalwaysreturntothesamesmallpieceofforest,whichisonly20kilometerswide._,Readthelessonandfinishtheexercise.,F,Yes,theydo,HestudiesonekindofNorthAmericanbutterfly,230million,在墨西哥，这种蝴蝶总是回到仅有20千米宽的同一小片森林。,T,1.有关attention的短语2.asas的用法3.lie与lay的用法fantasticchemicalhavebeendrawing,LanguagePoints,attention,drawonesattentiontosth.(使某人注意某事).,2.catchonesattention(引起某人注意),3.payattentiontosth.(注意、留心),4.giveonesattentiontosth.(关心),asas,1.Heis_hisfather.(像一样高)2.Idomyhomework_mysisterdoes.(像一样认真)3.Theysee_onehundredstudentsinfrontofthelibrary.(像一样多),astallas,ascarefullyas,asmanyas,lie与lay,Thehens_(lay)eggseveryday.Haveyouever_(lie)toyourparents?,lay,lied,lay(下蛋)-laid-laid-layinglie(说谎)-lied-lied-lyinglie(平躺)-lay-lain-lying,作形容词，意为“奇异的、极好的、了不起的”，在句中作定语或表语。如：,4.fantastic,Ithinkthisisafantasticinvention.我想这是一个了不起的发明。,作可数名词，意为“化学物质、化学制品”，复数形式是chemicals。如：,Therearenochemicalsinthiskindoffood.这种食品中没有化学物质。,5.chemical,作形容词，意为“化学的、化学作用的”，在句中作表语或定语。如：,Wecanfindchemicaladditivesinmanyfoods.我们在很多食品中发现了化学添加剂。,句中的havebeendrawing是现在完成进行时，它由“助动词have(has)+been+现在分词”构成，当主语是第三人称单数时用助动词has，其他情况用助动词have。,6.FantasticfactsaboutthebutterflyhavebeendrawingDr.Taylorsattention.,它往往与表示一段时间的时间状语连用，如：allthetime,thismonth,allday,thesefewdays,forayear,sinceaweekago等。,Shehasbeenplayingbasketballafterschoolthisweek.这个星期她放学后一直打篮球。Tonyhasbeendrawinginhisbedroomalltheafternoon.托尼在卧室画了一下午。,Whatdoyouthinkisthemostfascinatingthinginnature?,Post-reading,Discussion,Areyoufamiliarwiththesesentences?Theyarefromthebookswehavelearned.,1.InMexico,thebutterfliesalwaysreturntothesamesmallpieceofforest,whichisonly20kilometreswide.2.Thebutterfliesthatreturntothesoutharethegreat-greatgrandchildrenofthebutterfliesthatleftforthenorth.,3.ButinMexico,peoplecutdownthetreesthatthebutterfliesneedtorestonbecausetheywantmorelandforfarming.4.IntheUnitedStatesandCanada,farmersusechemicalsthatkillmilkweed.,AttributiveClause定语从句,Grammar,定语从句是指在句中作定语的_。先行词是被定语从句所修饰的词（通常是名词或代词）。关系词，也叫作引导词，是在从句中替代先行词，在定语从句中充当一定的成分，通常是_或_，作_时常可以省略。先行词为人时，引导词常用_或_；先行词为物时，引导词常用_或_。,从句,主语,宾语,宾语,who,that,that,which,定语从句,AttributiveClauses,TheboywhoiswearingablackcoatboughtaniPodyesterday.,Theexperimentsthatwedidyesterdaywerefantastic.,主语,定语从句,定语从句,主语,修饰theboy,修饰experiments,关系词,特殊情况下，由that引导的定语从句：,1.先行词为all,everything,nothing,something,anything,little,much等不定代词时。2.先行词被all,little,much,every,no等修饰时。3.先行词被序数词或最高级修饰时。4.先行词被theonly,thevery,thesame,thelast修饰时。5.先行词为人和物的组合。6.主句是who/which开头的特殊疑问句。,请给下列的定语从句补充引导词。1.Whoisthegirl_talkedtoyouyesterday.2.Lookatthephotos_Itookonmytrip.3.Itsuccessfullyshowstherichculture_makesBeijingsofamous.4.Thephoto_welikedbestwastakenbyZhaoMin.5.Hisfatheristheperson_willbemostunhappy.6.Tomistheboy_wesawintheshop.,that,that/which,that/which,that/who,that/which,that/who,7.Iamsureshehassomething_youcanborrow.8.Ivereadallthebooks_arenotmine.9.Thisisthefirstbook_hehasread.10.Thisistheverybook_belongstohim.11.Th