Unit4+Natural+Disasters+Discovering+Useful+Structures+课件-2024-2025学年高中英语人教版（2019）必修第一册

Unit4NaturalDisasters定语从句——关系代词引导的定语从句

一、

什么是定语？

二、什么是定语从句？定语是用来描述名词或代词的修饰语，它常和名词构成名词短语。定语分前置定语和后置定语两种。定义：在复合句中起定语作用的句子称为定语从句，定语从句可以用来修饰名词、代词或整个句子。被定语从句修饰的部分为先行词，引导定语从句的词为关系词。翻译为“……的”。分类：限制性定语从句：无逗号，从句是主句不可缺少的部分。非限制性定语从句：有逗号，主句完整，从句是补充说明。关系代词不可省略，不能用that。关系词关系代词关系副词作用：引导定语从句——连接先行词和定语从句；代替先行词；在定语从句中充当成分。that\which\who\whom\whose\as在从句中，作主语、宾语、表语或定语where\when\why在从句中作（时间、地点、原因）状语一、识别从句：主句＋关系词＋从句二、划分从句：先行词＋（关系词+V1（从句谓语）...）＋V2（主句谓语）1.找到关系词（从句的开端）2.找到连接词后2个谓语动词3.画左括号（从连接词开始）4.画右括号（到从句结束）eg.HeisMike(wholikestoys).\Theboy(wholikesthetoys)isMike.识别定义从句＋做题1.判从句：名词或代词后的句子一般为定语从句；划分出定语从句：先行词＋（关系词+V1（从句谓语）...）＋V2（主句谓语）2.析成分：分析从句所缺成分。3.看先行词：看先行词指人指物还是整个主句。①(教材典句)Thereweredeepcracksthatappearedinthewellwalls.②(教材典句)Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromaroundthecountry.③(教材典句)Thenextday,peopleputupsheltersintheopenairusinganythingthattheycouldfind.④(教材典句)Thenumberofpeoplewhowerekilledorbadlyinjuredinthequakewasmorethan400,000.⑤(教材典句)Soonafterthequakes,thearmysent150,000soldierstoTangshantodigoutthosewhoweretrappedandtoburythedead.⑥(教材典句)Workersbuiltsheltersforsurvivorswhosehomeshadbeendestroyed.⑦(教材典句)Theinjuredboywhosemotherwaslostinthedisasterwastakentothehospital.⑧Socialmedialikeblogshascomebetweenusandthefriendswhomwelove.用法感知关系代词的用法关系代词先行词所指在从句中充当的成分是否可以省略who人主语、宾语宾语可省whom人宾语可省whose人、物定语不可省that人、物主语、宾语、表语宾语可省which物主语、宾语宾语可省as人、物、事主语、宾语、表语宾语可省当先行词前有thesame/such/as/so时，关系代词只用as：eg.This

is

the

same

book

as

Ilost.这是我丢的那本书只用that的情况：代高数，人和物，only,very不重复用法例句先行词为不定代词时，如all,much，every,no,few,any,little，anything,everything，something,nothing,none,noone等Ihavesaidall(that)Iwanttosay.Isthereanything(that)Icandoforyou？先行词被形容词最高级、序数词修饰，或本身就是最高级、序数词时Thisisthebestfilmthathasbeenshowninthecity.We'llneverforgetthefirstlesson(that)ourEnglishteachergaveus.先行词既有人又有物时Theytalkedaboutthemanandthethingsthattheysaw.先行词被theonly,thevery,thelast,just等修饰时Thisistheverybook(that)Iwanttobuy.Theonlything(that)Icandoishavearest.当主句是以which或who开头的疑问句时Whichisthehotelthathestayedatlastnight?WhoisthemanthatistalkingwithMike？先知道：That——那个（有特指的含义）Which——哪一个（有选择的含义）HaveyoutakendowneverythingthatMr.Lisaid?WhichistheT-shirtthatfitsmemost?

ThisisthebestfilmthatIhaveeverseen.

Allthatcanbedonehasbeendone.Afterthefireinhishouse,theoldcaristheonlythingthatheowns.Lookatthemanandhisdonkeythatarewalkingupthestreet.Whoisthemanthatisstandingbythegate?ThefirstplacethattheyvisitedinLondonwastheBigBen.ThereislittlethatIcandoforyou.用法练习：翻译并找出每句话属于哪种情况1.介词后面；2.逗号后面，引导非限制性定语从句；3.先行词本身是that，避免重复；只用which的情况Thepenwithwhichheiswritingwasboughtyesterday.他正用来写字的笔是昨天买的。TheladderonwhichIamstandingwasboughtinthesupermarket.我现在站着的梯子是昨天从超市买的。Thatwhichyoutoldhimisexciting.你告诉他的事是令人兴奋的。Thefilm,whichIsawafewdaysago,iswellworthseeing.我几天前看过的那部电影很值得一看。关系词前没有逗号，没有介词，在从句中作主语或宾语，都能用thatSummaryeg.This

is

the

same

book

as

Ilost.这是我丢的那本书This

is

the

same

asthebook

thatIlost.这和我丢的那本书是一样的1.判从句：名词或代词后的句子一般为定语从句；划分出定语从句：先行词＋（关系词+V1（从句谓语）...）＋V2（主句谓语）2.析成分：分析从句所缺成分3.看先行词：看先行词指人指物还是整个主句HOMEWORK一、课后评价（十四）U