Unit 4 Natural Disasters Discovering Useful Structures 課件高一上學(xué)期英語(yǔ)人教版（2019）必修第一冊(cè)

Unit4NaturalDisastersLivetotell:RaisingAwareness,ReducingMortality.用生命呼吁：增強(qiáng)減災(zāi)意識(shí)，減少人員傷亡。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(限制性定語(yǔ)從句)Relativepronoun（關(guān)系代詞）Antecedent（先行詞）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（關(guān)系代詞）.TaskFindandunderlinetherestrictiverelativeclausesinthesentencesbelow.TheTangshanearthquakewasaterribleexperiencethatmygreat-grandmacannotforget.

restrictiverelativeclause(限制性定語(yǔ)從句)先行詞關(guān)系代詞Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromaroundthecountry.restrictiverelativeclause(限制性定語(yǔ)從句)Antecedent先行詞關(guān)系代詞Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.Thecouplewholivenexttousvolunteeredtohelpafterthevolcanoerupted.restrictiverelativeclause(限制性定語(yǔ)從句)Antecedent先行詞關(guān)系代詞Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.Thecouplewhom

wetalkedtovolunteeredtohelpafterthevolcanoerupted.restrictiverelativeclause(限制性定語(yǔ)從句)Antecedent先行詞關(guān)系代詞Findandunderlinetherestrictiverelativeclausesinthesentencesbelow.MrLiisanarchitectwhosedesignsforthenewtown

havewonpraise.

restrictiverelativeclause(限制性定語(yǔ)從句)Antecedent先行詞關(guān)系代詞Observethesentencesandfindrelativepronouns.1.Thereweredeep

cracks

thatappearedinthewellwalls.2.TheTangshanearthquakewasaterribleexperiencethatmygreat-grandmacannotforget.3.Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromaroundthecountry.4.Twothirdsofthepeoplewholivedthereweredeadorinjured.5.Thenumberofpeoplewhowerekilledorbadlyinjuredinthequakewasmorethan400,000.6.AdoctorwithwhomJamesusedtoworkdiedinthe2016earthquakeinEcuador.7.Workersbuiltsheltersforsurvivorswhosehomeshadbeendestroyed.指物，作主語(yǔ)指物，作賓語(yǔ)指物，作主語(yǔ)指人，作主語(yǔ)指人，作主語(yǔ)指人，作賓語(yǔ)指人，作定語(yǔ)Conclusion2:Thefunctionsofrelativepronouns1)referto________________--theantecedent2)serveasthe______,______,possessiveintheclauseTask

personsorthingsobjectsubjectpersonsthingssubjectobjectpossessive（所有格）whowhomwhichthatwhose宜用that就不宜用which引導(dǎo)定語(yǔ)從句的情況1.當(dāng)先行詞被序數(shù)詞或形容詞最高級(jí)修飾時(shí)。Thefirstthing_____youshoulddoiscallthepolicerightaway.Thisisthemostdeliciousfood_________Ihaveeverhad.2.當(dāng)先行詞是all，any，little，few，much，everanything,nothing，none等不定代詞或被這些詞修飾時(shí)。All________canbedonehasbeendone.Tellmeeverything________youknowPleasesendusanyinformation_______youhaveaboutthesubject.that

thatthatthat

that

3.當(dāng)先行詞被由theonly，thevery，thelast，thesame等修飾時(shí)。Theonlything_______________shecoulddowastogotothePoliceforhelp.Thisistheverybook_________Iwanttobuy.4.當(dāng)先行詞既包括人又包括物時(shí)。Sometimesweshouldignorethepersonsandthings__________upsetus.宜用that,不宜用which引導(dǎo)定語(yǔ)從句的情況thatthatthat5.當(dāng)主句是以who或者which開(kāi)頭的特殊疑問(wèn)句時(shí)。Whichofthebooks_________youboughtisthemostusefulformywriting?你買的書中哪一本對(duì)我的寫作最有用?宜用that不宜用which引導(dǎo)定語(yǔ)從句的情況that宜用which不宜用that引導(dǎo)定語(yǔ)從句的情況1.引導(dǎo)非限制性定語(yǔ)從句時(shí)。Football,___________isaninterestinggame,isverypopularallovertheworld足球是一項(xiàng)有趣的運(yùn)動(dòng)，在全世界非常受歡迎。2.當(dāng)關(guān)系代詞前有介詞時(shí)。Thisisthehousein_________MoYanoncelived這就是莫言曾經(jīng)住過(guò)的房子。whichwhich定語(yǔ)從句中的主謂一致1.關(guān)系代詞在從句中作主語(yǔ)時(shí)，定語(yǔ)從句謂語(yǔ)動(dòng)詞的形式根據(jù)_________的形式確定.Theoldtownhasnarrowstreetsandsmallhousesthat______builtclosetoeachother.舊城區(qū)的街道狹窄，房子小，彼此挨得很近I'mfondofthatPieceofmusicwhich_______popularwiththeteenage.我喜歡在青少年中流行的那支曲子。先行詞are

is定語(yǔ)從句中的主謂一致

Oneof+復(fù)數(shù)名詞+定語(yǔ)從句(復(fù)數(shù)謂語(yǔ))

theonlyoneof+復(fù)數(shù)名詞+定語(yǔ)從句(單數(shù)謂語(yǔ))2Heisoneofthestudentswho________agoodcommandofFrench.他是精通法語(yǔ)的學(xué)生之ー。(thestudents為先行詞)Heistheonlyoneofthestudentswho___________agoodcommandofFrench.他是學(xué)生中唯一精通法語(yǔ)的。(theonlyone為先行詞)havehas

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

(p52Ex2)1.Herearesomeofthepeople

homesweredestroyedbythetyphoon.2.Theterribleshakingofthebuildingwokeupallthepeople

________wereasleep.whosewho/that有些人的房子被臺(tái)風(fēng)摧毀了。建筑物可怕的搖晃把人們從睡夢(mèng)中驚醒。CompletethesentenceswithpronounsandtranslatethemintoChinese.(p25Ex2)3.Thenextday,peopleputupsheltersintheopenairusinganything_________theycouldfind.4.Severaldayslater,mostofthebuildings

hadbeendamagedbythehurricanewererepaired.5.Theinjuredboy

motherwaslostinthedisasterwastakentothehospital.thatwhosethat/which

第二天，人們用能找到的一切物品在空地上搭建起避難所。

幾天以后，大多數(shù)被颶風(fēng)破壞的建筑物得到了修繕。

那個(gè)在災(zāi)難中失去了母親的受傷男孩被送去了醫(yī)院。

CompletethesentenceswithpronounsandtranslatethemintoChinese.(p52Ex2)6.Thewomanwroteathank-youlettertothesoldierby_________shewasrescued.7.Isthisyoungboy_________savedseveralotherstudentstrappedunderbuildings?whomwho/thatAfterapreposition（介詞）whomforpeoplewhichforthings這位女士給營(yíng)救她的戰(zhàn)士寫了一封感謝信。這就是那個(gè)從樓里救出了好幾位被困同學(xué)的年輕男孩嗎？

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