人教版（2025）必修第二册Unit1 Cultural Heritage Discovering Useful Structures定语从句(共22张PPT).pptxVIP

Unit1

CulturalHeritage;;复习：关系代词引导的定语从句;关系副词;;复习：关系代词引导的定语从句;关系副词;Rewritethesentencesusingrelativeclauses.;2.TheprojectteamhelpedprotectthenationalparksintheUnitedRepublicofTanzania.Itwasformedbymembersfromfifteencountries.

;5.Thedocumentsabouttheculturalrelicsfromoverseasareunderthedesk.Ifoundthemyesterday.(Theplace…);Workinpairs.Playagameofdefinitions.Answerthemwithrelativeclauses.;Thedifferencesbetweentherestrictiveandnon-restrictiveattributiveclause;1.YoushouldgotoseeMary,whohasbeenillforalongtime.

2.Lastnightisawaverygoodfilm,whichisabouttheSecondWorldWar.

3.Mybrother,whomyousawjustnow,isanengineer.

4.Thebuilding,whoseroofwecanseefromhere,isachurch.

5.HeisleavingforBeijng,wherehewillattendameeting.

6.Asisoftenthecase,wehavewokedouttheproductionplan.和往常一样，我们已经制定出了生产计划。;As引导定语从句

一.引导限定性定语从句

在定语从句中构成thesame…as..;such…as…的结构，在从句中作主语，宾语，表语或状语。

Eg:1.Ilikethesamebookasyoudo.

我和你一样喜欢这本书。

2.Suchstudetsasyouhavementionedshouldbecriticized.

你提到的这种学生应该受到批评。;二、引导非限定性定语从句

as引导非限制性定语从句，常带有“正如”。

Eg.1.Asisknowntoall,heisthebeststudentinourclass.

2.Asweallknow,hestudiesveryhard.

3.Asisoftenthecase,wehaveworkedouttheproductionplan.

总结:as在非限定性定语从句中用来说明整个主句，放在主句之前。在定语从句中作主语或宾语。;2.as与which引导非限制性定语从句时的区别;as与which区别

1.Thenumberofsmokers,________isreported,hasdroppedby17percentinjustoneyear.???

2.Thereisnosimpleanswer,________isoftenthecaseinscience.???

3.________wasreportedinthepaper,nopeoplediedintheaccident.???

4.________?isshowninthestory,sheisveryclever.???

5.Thesunheatstheearth,________makesitpossibleforplantstogrow.???

6.Donttalkaboutsuchthings________youarenotsureof.???

7.Hechangedhismindagain,________madeusallangry.???

8.________?isofte