Unit+1+Cultural+Heritage+Discovering+Useful+Structures+课件 【知识精讲精研】 高中英语人教版（2019）必修第二册

复习限制性定语从句了解非限制性定语从句知道如何合并定语从句在主从复合句中，对某一名词或代词起修饰作用的从句叫定语从句。被修饰的名词或代词叫先行词，引导定语从句的连接词叫关系词。定语从句一般位于先行词后1.引导定语从句2.代替先行词3.在从句中担当一个成分WhichoneisHarryPorter

?TheboyisHarryPorter.WhichoneisHarryPorter?Theboy_______________________isHarryPorter.whoiswearingglassesTheusageoftherelativepronounsandadverbswhich/thatwhich/thatStep1:划分主句和从句Step2:找先行词Step3:看从句所缺成分缺主语、宾语、定语---选择关系代词(who/that/which/whose/whom)不缺成分，选择关系副词去做状语---(when/where/why)选择关系词的步骤1.Therecomesatime_____theoldmustgivewaytothenew.2.Waterfromthedamwouldlikelydamageanumberoftemplesanddestroyculturalrelics_______wereanimportantpartofEgypt'sculturalheritage.3.Afterlisteningtothescientists_______hadstudiedtheproblem,andcitizens_________livednearthedam,4.Temples...andthenmovedandputbacktogetheragaininaplace_____theyweresafefromthewater.5....byUNESCO,whichrunsaprogramme_________preventsworldculturalheritagesitesaroundtheworldfromdisappearing.which/thatwherewho/thatwhich/thatwhenwho/thatDiscoveringUsefulStructures非限制性定语从句限制性定从非限制性定从Theteacherwhotaughtmeismysister.Mysisterisateacher,whoplaysbadmintoneveryweek.句意完整为非限定从，不完整为限制性定从。ThegirlisfromAmerica.ThegirlIcalledjustnow.

Thegirl

(whom)Icalledjustnow

isfromAmerica.They’retalkingaboutthefilm.Ihaveseenthefilm.

They’retalkingaboutthefilm(that)I’veseen.如何合并定语从句？Ihavereadthenewspaper.Thenewspapercarriestheimportantnews.

Ihavereadthenewspaper

whichcarries

theimportantnews.Thegirlgotfirst.Thegirl’sfatherhadgivenusareport.

Thegirlwhosefather

hadgivenusareportgotfirst.Ishowedhimtheletter.Ireceivedtheletterthismorning

Ishowedhimtheletter(which)Ireceivedthismorning.

JanehasborrowedthebookthatwaswrittenbyLaoshe.ThebookwaswrittenbyLaoshe.Janehasborrowedthebook.Summary1.找共同3.共同部分为先行词，从句位于先行词的后面2.判断主句和从句Step1Ihavedownloadedthatfreeapp,butitdoesn’tworkwell.找共同thatfreeappitStep2Ihavedownloadedthatfreeapp,butitdoesn’tworkwell.判主从主从句规则主句：整句话的核心含义；从句：起修饰共同名词作用。主句：Thefreeappdoesn’tworkwell.从句：Ihavedownloadedthatfreeapp.Step3Ihavedownloadedthatfreeapp,butitdoesn’tworkwell.ThefreeappwhichIhavedownloadeddoesn’tworkwell.Practice1Heshowedmeaphotoinhisroom.ItwasaphotoofafamousculturalrelicinEgypt.找相同：aphoto

=

it判主从：主：Itwasaphoto

...

从：Heshowedme

...Thephoto(which/

that)heshowedmeinhisroomwasofafamousculturalrelicinEgypt.Practice2TheprojectteamhelpedprotectthenationalparksintheUnitedRepublicofTanzania.Itwasformedbymembersfromfifteencountries.找相同：theprojectteam

=

it判主从：主：Theprojectteamhelped...从：Itwasformedby...TheprojectteamthatwereformedbymembersfromfifteencountrieshelpedprotectthenationalparksintheUnitedRepublicofTanzania.Practice3ThistemplewasfirstbuiltduringtheQinDynasty.(Thetime…)找相同：thetime

=

QinDynasty判主从：主：ThetimewasduringtheQinDynasty.从：Thistemplewasfirstbuilt.

ThetimewhenthistemplewasfirstbuiltwasduringtheQinDynasty.Practice4WemetaprofessionalarchaeologistattheentrancetotheGreatPyramid.Heexplainedtoustheprocessofbuildingsuchadifficultstructure.找相同：theprofessionalarchaeologist

=

he判主从：主：Heexplainedtoustheprocess...从：Wemetaprofessional...

Theprofessionalarchaeologist(who/whom)wemetattheentrancetotheGreatPyramidexplainedtoustheprocessofbuildingsuchadifficultstructure.Practice5Thedocumentsabouttheculturalrelicsfromoverseasareunderthedesk.Ifoundthemyesterday.(Theplace…)找相同：Thedocuments

=

them判主从：主：Ifoundthemyesterday.从：Thedocumentsaboutthecultural...Ifoundthedocumentsyesterdaywhichabouttheculturalrelicsfromoverseasareunderthedesk.Practice6Scientistsworkedtogetherdayandnighttorescuethetemplebecausetheywantedtopreserveitforthenextgeneration.(Thereason…)找相同：thereason

=

because判主从：主：becausetheywantedtopreserve...从：Scientists