定语从句讲解PPT.ppt

;Complex sentence 复合句：;在句子中作定语，修饰名词或代词的从句。这种从句由关系代词 或关系副词引导，并作句子成分。 定语从句还叫做嵌入句， 因形容词定语，所以又称之为形容词性从句。;Attributive clause:;考点一:如何判定用关系代词还是用关系副词;考点一:如何判定用关系代词还是用关系副词;考点一:如何判定用关系代词还是用关系副词;2、如定语从句中缺宾语，确定定语从句的谓语动词是不是及物 动词，如是，用关系代词，如不是，用关系副词。;3、如定语从句中谓语结构是被动结构，有主语，则用关系副词。;口诀;考点二：that和which的选择;考点二：that和which的选择;⑥先行词是疑问词who, which, what 时，定语从句用that而不用who, (whom)和which引导。;Which可以引导非限定性定语从句，可用于介词后，其先行词可是一个词,也可是整个主句或主句的某一部分。 1 She heard a terrible noise, ______ brought her heart into her mouth. A. it B. which C. this D. that 2. The weather turned out to be good, ___ was more than we could expect. A. what B. which C. that D. it ;考点三：as与which引导的定语从句;2.用于the same…as…,such…as…，as…as…, so…as…中，一般用as。 e.g. Such books as you tell me are interesting. This is the same book as I lent you yesterday.;4. as在从句中作主语时，后面常接行为动词的被动语态，如be known，be said，be reported等，如从句中行为动词是主动语态，一般要用which作主语。 e.g. She has been late again, as was expected. Tom has made great progress, which made us happy.;考点四：关系代词前介词的确定 ;4.非限制性定与从句中，要表示先行词的一部分时，可用“数词/代词 + of + 关系代词”的结构，如： e.g. There are 50 students in our class, two- thirds of whom have been to Beijing. ; 关系副词when, where, why可以用适当的介词+which来替代。如：when=in/on/at…+which, where=in/on/at…+which, why=for+which 介词的位置非常灵活，有时放在关系代词之前，有时放在动词之后。 eg. 1. I won’t forget the date when( on which) I was born. 2. This is the room where (in which) I lived. = This is the room which I lived in. 3. I don’t know the reason why (for which) he haven’t come today. 4. Tom still remembers the days when (in which) they lived in Tianjin. ;思考？;五. 注意定语从句的主谓一致性关系代词在定语从句中作主语时，从句的谓语必须与先行词保持人称和数的一致。例如： Tom is one of the boys who are from the USA.  Tom is the only one of the the boys who is from the USA. ;六. 保持主句的完整性并避免从句成分的重叠;（1）Is this factory _____________ we visited last week ? （2）Is this the factory ____________ we visited last week ?