2021年中考英语精华知识点超全汇总

2021年中考英语精华知识点超全汇总英语语法重点与难点1、as…as...结构:You'reaboyasgoodasTom.=You'reasgoodaboyasTom.你和汤姆是一样好的孩子。2、(l)too…to与so...thatsb.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：Themanwastooangrytobeabletospeak.Themanwassoangrythathewasn'tabletospeak.(2)too...to...与notenoughto句型的转换:Heistooyoungtogetmarried.=Heisnotoldenoughtogetmarried.Thebookistoodifficultformetoread.=Thebookisnoteasyenoughformetoread.3、形容词原级表示比较级含义:约翰不象迈克那么苯。JohnisnotsostupidasMike.

JohnislessstupidthanMike.

JohnisclevererthanMike.4、用比较级表示最高级：约翰是班里最高的男生。Johnistallerthananyotherboyintheclass.Johnisthetallestboyintheclass.5、themore…themore....表示"越 越Themorebooksyouread,thewideryourknowledgeis.Themorefoodyoueat,thefatteryouare.6、moreandmore.⋯表示"越来越":Moreandmorestudentsrealizedtheimportanceofaforeignlanguage.Ourcountryisgettingstrongerandstronger.二.中考考点一词组1'vereadthenewspaperthat(which)carriestheimportantnews.Whoisthepersonthatisreadingthenewspaperoverthere?6.when指时间，在定语从句中作状语。例如：

1' IIneverforgetthetimewhenweworked>HearrivedinBeijing〉7.where指地点，在定语从句中作状语。例如：

Thisisthehousewherewelivedlastyear.Thefactorywherehisfatherworksisintheeastofthecity.四.关系代词whom,which在定语从句中作介词宾语时，可以和介词一起放于先行词与定语从句之间，有时为了关系紧凑也可以将whom与which与先行词紧挨着书写，而将介词置于定语从句的后面，如：

Thatwastheroominwhichwehadlivedfortenyears.=Thatwastheroom

whichwehadlivedinfortenyears.五.具体使用时还要注意下列问题：

1.只能使用that,不用which的情况：

(1)先行词是all,few,little,nothing,everything,anything等不定代词时。Allthathesaidistrue.(2)先行词被only,no,any,all,等词修饰时。(3)先行词是序数词或被序数词修饰的词.例如：

Hewasthesecond(person)thattoldmethesecret.(4)先行词是形容词最高级或被形容词最高级修饰的词。Thisisthebestbook(that)Ihavereadthisyear.(5)先行词既包括人又包括物时。例如：

Hetalkedaboutthepeopleandthethingsheremembered.2.只能用which,不用that的情况：

(1)在非限制性定语从中。例如：

Themeetingwasputoff,whichwasexactlywhatwewanted.(2)定语从句由介词+关系代词引导，先行词是物时。