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人教版(2019)必修第二册Unit 1 Cultural Heritage Section B Discovering Useful Structures 教学课件-(20张ppt)

日期:2024-06-24 科目:英语 类型:高中课件 查看:75次 大小:8299625Byte 来源:二一课件通
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(课件网) Unit 1 Cultural Heritage Section B Discovering Useful Structures CONTENTS Leading-in While-class After-class Part 1 Part 2 Part 3 Part.1 Leading-in Leading in Who is my best friend 2.Who borrowed a book from me yesterday Part.2 While-class While-class 关系 副词 先行词 在定语从句中 充当的成分 可以转化成 when 时间名词 时间状语 in/on/at..which where 地点名词 地点状语 in/on/at...which why reason 原因状语 for which While-class 关系代词和关系副词 指代对象 例句 that作主语或宾语 指物 1) It is Mount Tai that lies in Shandong Province.(作主语) 2) That is the most interesting story (that) I have ever heard of.(作宾语) 指人 1) Who is the man that is reading a book over there (作主语) 2) The girl (that) we saw yesterday is his sister.(作宾语) which作主语或宾语 指物 1) My favorite place is Kunming which is known as the Spring City.(作主语) 2) This is the place (which) he would like to visit.(作宾语) who, whom,和whose分别作主语,宾语和定语 (先行词在主句和从句中都作宾语时用whom) 指人 1) The tall man who is playing basketball is Yao Ming.(作主语) 2) That is the girl (whom) I met at the party yesterday.(作宾语) 3) Is this the boy whose parents went to Canada last year.(作定语) when, where和,why分别作时间状语,地点状语和原因状语 1) I shall never forget the day when we first met in a park.(作时间状语) 2) My favorite city is Beijing where I can visit the Great Wall.(作地点状语) 3) This is the reason why you should leave.(作原因状语) While-class 注:that和which都可指物,且在句中都可作主语和宾语,多数情况下可以互换。但在以下情况中,关系代词只能用that,不能用which。 1.先行词既指人又指物。 2.先行词被all, every, any, little, only, much, no等不定代词修饰时,或先行词本身是all, much, everything, anything, no以及no构成的复合词。 3.先行词被形容词最高级或序数词修饰。 4.先行词被the only, the very, the last, the same修饰。 5.有两个或两个以上分别表示人和物的先行词。 6.主句以who, what, which开头的特殊疑问句。 While-class 关系代词和关系副词的判定方法: 关系副词和关系代词的选择是根据先行词在定语从句中做的成分。若是做状语,则用关系副词或“介词+which”; 若是做主语和宾语,则用关系代词。 “介词+关系代词”引导的定语从句: 关系代词做介词的宾语时,为了使关系代词与先行词的关系词更加紧凑,可以将从句中的介词提前到关系代词之前,形成“介词+关系代词”结构。该结构中的关系代词可用which或whom;介词可以依据从句中的谓语的搭配、与先行词的搭配或句子意义来确定。 Is this the car for which you paid a high price 这是你花大价钱买的车吗?(根据从句中谓语动词pay的搭配来定) While-class 注:(1)有些“动词+介词”短语,如 look for, look after, call on等不可拆开而把介词置于关系代词之前。 (2)有时候“介词+关系代词”前还会有名词、代词等。 The river, the bank of which are covered with trees, flows to the seas. 定语从句需要注意的问题: 1. as引导限制性定语从句时,常用于下列句式中: such+名词+as..…像……一样的;the same+名词+as.… 和……同样的。 2.当先行词是time时,若time表示“次数”,应用that引导定语从句,并且tha ... ...

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