Unit 4 Natural Disasters Discovering Useful Structures 课件高一上学期英语人教版（2019）必修第一册

Unit4NaturalDisastersLivetotell:RaisingAwareness,ReducingMortality.用生命呼吁：增强减灾意识，减少人员伤亡。DescribepicturesofdisastersWarm-upLittletest1.Whichthingisthewarningsignbeforetheearthquake?Wecouldfindunusualbehaviour

thatanimalsshow.Thewaterthatwasinthevillagewells（井）

roseandfell.Therearesomepeoplewhopostsomeearthquakepredictionmessages.2.Imagineyouareintheclassroomwhenanearthquakehappens.Whatshouldyoudo?We’dbetterstayunderthetablesthatcouldprotectus.JumpoffthebuildingFollowtheteacher'sarrangementDiscovingthestructure1.Wecouldfindunusualbehaviour

thatanimalsshow.2.Thewater

whichwasinthevillagewellsroseandfell.3.Therearesomepeoplewhopostsomeearthquakepredictionmessages.

4.We’dbetterstayunderthetables

thatcouldprotectus.Restrictiverelativeclause(限制性定语从句)Relativepronoun（关系代词）Antecedent（先行词）Whydoweuserestrictiverelativeclause?

1.Wecouldfindunusualbehaviour

thatanimalsshow.2.Thewater

whichwasinthevillagewellsroseandfell.3.Therearesomepeoplewhopostsomeearthquakepredictionmessages.

4.We’dbetterstayunderthetables

thatcouldprotectus.Wecouldfindunusualbehaviourthatanimalsshow.SummaryTherearesomepeoplewhopostearthquakepredictionmessages.Conclsion1:Arestrictiverelativeclausemakesthesentencemore_______.Ittellsuswhich______________(theantecedent)we

aretalkingabout.clearpersonsorthingsWhatrelativepronounsdoweknow?Whatfounctionsdotheyhave?that,which,who,whom,whosethatObservethesentencesandfindouttheusagesofrelativepronouns（关系代词）.TaskFindandunderlinetherestrictiverelativeclausesinthesentencesbelow.TheTangshanearthquakewasaterribleexperiencethatmygreat-grandmacannotforget.

restrictiverelativeclause(限制性定语从句)先行词关系代词Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromaroundthecountry.restrictiverelativeclause(限制性定语从句)Antecedent先行词关系代词Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.Thecouplewholivenexttousvolunteeredtohelpafterthevolcanoerupted.restrictiverelativeclause(限制性定语从句)Antecedent先行词关系代词Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.Thecouplewhom

wetalkedtovolunteeredtohelpafterthevolcanoerupted.restrictiverelativeclause(限制性定语从句)Antecedent先行词关系代词Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.MrLiisanarchitectwhosedesignsforthenewtown

havewonpraise.

restrictiverelativeclause(限制性定语从句)Antecedent先行词关系代词Observethesentencesandfindrelativepronouns.1.Thereweredeep

cracks

thatappearedinthewellwalls.2.TheTangshanearthquakewasaterribleexperiencethatmygreat-grandmacannotforget.3.Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromaroundthecountry.4.Twothirdsofthepeoplewholivedthereweredeadorinjured.5.Thenumberofpeoplewhowerekilledorbadlyinjuredinthequakewasmorethan400,000.6.AdoctorwithwhomJamesusedtoworkdiedinthe2016earthquakeinEcuador.7.Workersbuiltsheltersforsurvivorswhosehomeshadbeendestroyed.指物，作主语指物，作宾语指物，作主语指人，作主语指人，作主语指人，作宾语指人，作定语Conclusion2:Thefunctionsofrelativepronouns1)referto________________--theantecedent2)serveasthe______,______,possessiveintheclauseTask

personsorthingsobjectsubjectpersonsthingssubjectobjectpossessive（所有格）whowhomwhichthatwhose宜用that就不宜用which引导定语从句的情况1.当先行词被序数词或形容词最高级修饰时。Thefirstthing_____youshoulddoiscallthepolicerightaway.Thisisthemostdeliciousfood_________Ihaveeverhad.2.当先行词是all，any，little，few，much，everanything,nothing，none等不定代词或被这些词修饰时。All________canbedonehasbeendone.Tellmeeverything________youknowPleasesendusanyinformation_______youhaveaboutthesubject.that

thatthatthat

that

3.当先行词被由theonly，thevery，thelast，thesame等修饰时。Theonlything_______________shecoulddowastogotothePoliceforhelp.Thisistheverybook_________Iwanttobuy.4.当先行词既包括人又包括物时。Sometimesweshouldignorethepersonsandthings__________upsetus.宜用that,不宜用which引导定语从句的情况thatthatthat5.当主句是以who或者which开头的特殊疑问句时。Whichofthebooks_________youboughtisthemostusefulformywriting?你买的书中哪一本对我的写作最有用?宜用that不宜用which引导定语从句的情况that宜用which不宜用that引导定语从句的情况1.引导非限制性定语从句时。Football,___________isaninterestinggame,isverypopularallovertheworld足球是一项有趣的运动，在全世界非常受欢迎。2.当关系代词前有介词时。Thisisthehousein_________MoYanoncelived这就是莫言曾经住过的房子。whichwhich定语从句中的主谓一致1.关系代词在从句中作主语时，定语从句谓语动词的形式根据_________的形式确定.Theoldtownhasnarrowstreetsandsmallhousesthat______builtclosetoeachother.旧城区的街道狭窄，房子小，彼此挨得很近I'mfondofthatPieceofmusicwhich_______popularwiththeteenage.我喜欢在青少年中流行的那支曲子。先行词are

is定语从句中的主谓一致

Oneof+复数名词+定语从句(复数谓语)

theonlyoneof+复数名词+定语从句(单数谓语)2Heisoneofthestudentswho________agoodcommandofFrench.他是精通法语的学生之ー。(thestudents为先行词)Heistheonlyoneofthestudentswho___________agoodcommandofFrench.他是学生中唯一精通法语的。(theonlyone为先行词)havehas

Completethesentenceswiththat,which,who,whose,whomor“/”.

(p52Ex2)1.Herearesomeofthepeople

homesweredestroyedbythetyphoon.2.Theterribleshakingofthebuildingwokeupallthepeople

________wereasleep.whosewho/that有些人的房子被台风摧毁了。建筑物可怕的摇晃把人们从睡梦中惊醒。CompletethesentenceswithpronounsandtranslatethemintoChinese.(p25Ex2)3.Thenextday,peopleputupsheltersintheopenairusinganything_________theycouldfind.4.Severaldayslater,mostofthebuildings

hadbeendamagedbythehurricanewererepaired.5.Theinjuredboy

motherwaslostinthedisasterwastakentothehospital.thatwhosethat/which

第二天，人们用能找到的一切物品在空地上搭建起避难所。

几天以后，大多数被飓风破坏的建筑物得到了修缮。

那个在灾难中失去了母亲的受伤男孩被送去了医院。

CompletethesentenceswithpronounsandtranslatethemintoChinese.(p52Ex2)6.Thewomanwroteathank-youlettertothesoldierby_________shewasrescued.7.Isthisyoungboy_________savedseveralotherstudentstrappedunderbuildings?whomwho/thatAfterapreposition（介词）whomforpeoplewhichforthings这位女士给营救她的战士写了一封感谢信。这就是那个从楼里救出了好几位被困同学的年轻男孩吗？

Workingroup.

Describethepictureswithrestrictiverelativeclauses.(p52Ex3)that,which,who,whose,orwhom..(p25Ex3)Whatistherescueworkerdoing?Whathappenedtothebaby?Whatarethesoldiersdoing?Whoarethetentsfor?Whatisthedog’sjob?Whodoesthedogwanttosearch?

Workwithapartner.

Describethepictureswithrestrictiverelativeclauses.that,which,who,whose,orwhom..(p25Ex3)Whatistherescueworkerdoing?Whathappenedtothebaby?Arescueworkeristakingcareofthebabythebabysurvivedtheearthquake.who/thatThewomanwhoisfeedingthebabyisarescueworker.

Workwithapartner.

Describethepictureswithrestrictiverelativeclauses.that,which,who,whose,orwhom..(p25Ex3)Whatisthedog’sjob?Whodoesthedogwanttosearch?Thedog,whosejobistosearchpeoplewhoareburiedintheruins,hasanincrediblesenseofsmell.

Workwithapartner.

Describethepictureswithrestrictiverelativeclauses.that,which,who,whose,orwhom..(p25Ex3)Whatarethesoldiersdoing?Whoarethetentsfor?Thesolidersarefixingthetentsforthepeoplewhosecitydestroyedbytheearthquake.Thepeople(1)_______liveinWenchuancountywillneverforgettheday12May,2008.The8.0-magnitudeearthquake(2)__________killedover80,000peopleandleftmanymoreinjuredturnedmanytownsandcountiesintoruins.Therescuework(3)___________followedwascarriedoutbypeoplefromalloverthecountry,andevenabroad.which/thatwhich/thatwhoCompletethepassagewiththat,which,who,whose,orprep+whom.(p56Ex2)Nowmorethan10yearson,thepeople(4)__________sufferedtheearthquakearelivinganewlife.Manyliveinnewtowns(5)___________areearthquake-safe,inlocalcommunities(6)_________havebeenbeautifullyrebuiltbythegovernmen