Unit 4 Natural Disasters Discovering Useful Structures定语从句课件(共53张PPT) 人教版(2019)必修第一册

(课件网) 定语从句 目录 1.定语与定语从句 2.定语从句结构 3.关系代词与副词 4.非限制性定语从句 5.总结及练习 1.定语与定语从句 什么是定语？ a hungry boy 一个饥饿的男孩 定语 delicious cookies 美味的饼干 定语 定语：就是“...的”，用来限定后面所接的词，说明名词的性质等。 一起找定语 He is a cute boy. The ice cream tastes delicious. 定语 定语 什么是定语从句？ This is a boy who is playing football. 定语从句 定语从句：在复合句中修饰名词或代词的句子。 2.定语从句结构 定语从句： 占定语位置的从句 穿着红色衣服的男孩正在做饭。 The boy who is in red is cooking. 先行词 关系词 主句 定语从句 先行词 关系词 什么是先行词？ The boy who is in red is cooking. 先行词 关系词 先行词 被定语从句修饰的名词或代词称为先行词。先行词一般出现在定语从句之前。 3.关系代词与副词 关系代词 关系副词 who whom whose which that when where why 代词三人组 who whom whose who Who is Xiaoxin Xiaoxin is the boy who is drinking water. 主语 系动词 表语 定语从句 从句 主语 从句 谓语 从句 宾语 who：在定语从句可作主语或宾语，先行词为人。 Who is Xiaoxin Xiaoxin is the boy whom Children threw. 主语 系动词 表语 定语从句 从句 宾语 从句 主语 从句 谓语 whom：在定语从句可作宾语，先行词为人。 whom Who is Xiaoxin Xiaoxin is the boy whose dog is white. 主语 系动词 表语 定语从句 从句 定语 从句 主语 从句 宾语 whose：在定语从句作定语，先行词可以是人或物。 whose 系动词 who who：在定语从句可作主语或宾语，先行词为人。 The boy who is drinking is Xiaoxin. He is the boy who we like. 人 主语 人 宾语 whom：在定语从句可作宾语，先行词为人。 Xiaoxin is a student whom I like very much. The boy with whom I was talking is Xiaoxin. 人 人 宾语 whom 宾语 whose：在定语从句可作定语，先行词为人或物。 The boy whose dog is white is Xiaoxin. The dog whose color is white is cute. 人 物 定语 whose 定语 代词三人组 who 我可以修饰人，我在从句中作 主语、宾语 whom 我也可以修饰人，我在从句只能作宾语， 我可以省略~ whose 我既可以修饰人，也可以修饰物，我在从句只能作定语 百搭代词二人组 which that The boy that was ill is Xiaoxin. Do you know the boy that Xiaoxin is talking with The dog that is white is Xiaoxin’s pet. Xiaoxin is walking a dog that he bought 3 years ago. that The dog which is called Xiaobai is Xiaoxin’s dog. The dog which he is walking is Xiaoxin’s pet. which 物 主语 物 宾语 百搭代词二人组 that 我可以修饰人和物， 我在从句中作 主语、宾语、表语 which 我只可以修饰物， 我在从句中作 主语、宾语、表语、定语 只用that情况 1.先行词为all，much，something，everything，nothing，little，none，the one等代词时。 eg：That is all that Xiaoxin wants to say. 那就是小新想要说的。 只用that情况 2.先行词被序数词或形容词最高级所修饰，或本身是序数词、基数词、形容词最高级时，只能用that，而不用which。 eg：Xiaoxin was the first person that passed the exam. 小新是第一个通过考试的人。 只用that情况 3.以who或which引导的特殊疑问句，为避免重复，只能用that。 eg：Who is the boy that is running 正在奔跑的那个男孩是谁？ 只用that情况 4.先行词被the only， the very， the same， the last， little， few 等词修饰时，只能用that ... ...