高中定语从句讲解ppt课件

中,修饰名词或代词的从句.被定语从句所修饰的名词或代词叫做“先行词”.引导定语从句的词叫“关系词”。引导定语从句的关系词who,whom,thatwhich,whosewherewhenwhy关系代词关系副词?关系词作用1.代替先行词; 2.它还在定语从句中担任一定的成分; 3. 同时连接先行词与它引导的定语从句.(把主句和从句连起来)?关系代词在定语从句中代替主句中的先行词,所以它在一般情况下都跟在先行词之后,而且它的人称、数必须和先行词一致。关系词判断步骤:?首先,要看先行词。如果先行词是指人,关系代词可用who,that,whom,whose。如果先行词指物,关系代词可用which,that或whose?然后,要确定关系词在从句中的成分。请看下表先行词作主语作宾语作定语人who,thatwho(m),that whose物which,thatwhich,thatwhose关系代词1.who指人,作主语或宾语(作宾语可省略)The man(who) I talked with is our teacher.A person who steals things is called a thief.2.whom指人,作宾语(作宾语可省略,如介词提前则不能省) The man (whom/who) I talked to is Mr. Li.The man to whom I talked is Mr. Li.3. that 指人/物,作主语或宾语(作宾语可省略)A plane is a machine. It can fly.A plane is a machine that can fly.He is the man. I told you about him.He is the man (that) I told you about.