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1、中考英语：必须掌握的英语语法重 点与难点1、 as.as结构：你和汤姆是一样好的孩子。You re a boy as good as Tom.= You# re as good a boy as Tom.2、 (l)too.to 与 so.that sb. can t的句型转换:前者为 简单句，主语只有一个，而后者为复合句，主语有两个，试比较： The man was too angry to be able to speak.The man was so angry that he wasn t able to speak.3、 ) too.to.与 not enough to 句型的转换：
2、He is too young to get married.=He is not old enough to get married.The book is too difficult for me to read.= The book is not easy enough for me to read.3、形容词原级表示比较级含义：约翰不象迈克那么苯。John is not so stupid as Mike.John is less stupid than Mike.John is cleverer than Mike.4、用比较级表示最高级：约翰是班里最高的男生。John is tal
3、ler than any other boy in the class.John is the tallest boy in the class.5、 the more. the more.表示越越”：The more books you read, the wider your knowledge is.The more food you eat, the fatter you are.6、 more and more.表示越来越:More and more students realized the importance of a foreign language.Our country
4、is getting stronger and stronger.who、whom、whose、which 的用法1. Who指人，在定语从句中作主语。例如：The person who broke the window must pay for it.The boy who is wearing the black jacket is very clever.2. whom指人，在定语从句中作宾语。例如：Do you know the young man (whom) we met at the gate ? Mr Lee (whom) you want to see has come.3.
5、 whose指人，在定语从句中作定语。例如：The girl whose mother is ill is staying at home today.I know the boy whose father is a professor.4. which指物，在定语从中作主语或宾语。例如：A dictionary is a book which gives the meaning of words. Here is the book (which) the teacher mentioned yesterday. 5. that多指物，有时也指人，在定语从句中作主语或宾语。例 如：F ve r
6、ead the newspaper that(which) carries the important news.Who is the person that is reading the newspaper over there?6. when指时间，在定语从句中作状语。例如：r II never forget the time when we worked on the farm. He arrived in Beijing on the day when I left.7. where指地点，在定语从句中作状语。例如：This is the house where we lived la
7、st year.The factory where his father works is in the east of the city.注意下列问题：1 .只能使用that,不用which的情况：(1)先彳亍词是 all, few, little, nothing/ everything, anything等不定代词时。例如：All that he said is true.(2)先行词被only, no, any, all,等词修饰时。例如：He is the only foreigner that has been to that place.(3)先行词是序数词或被序数词修饰的词。例
8、如：He was the second (person) that told me the secret.(4)先行词是形容词最高级或被形容词最高级修饰的词。This is the best book (that) I have read this year.(5)先行词既包括人又包括物时。例如：He talked about the people and the things he remembered.2 .只能用which ,不用that的情况：(1)在非限制性定语从中。例如：The meeting was put off, which was exactly what we wanted.(2)定语从句由介词+关系代词引导，先行词是物时。例如：The thing about which he is talking is of great importance.