准初四必看！中考英语精华知识点全汇总！
对于准初四的同学来说，过了这个暑假，开学迎接他们的便是面临中考的重重压力，今天为大家整理了中考英语精华知识点，大家可以提前看一看！一、英语语法重点与难点
1、as…as…结构：
You’re a boy as good as Tom.=You’re as good a boy as Tom.
你和汤姆是一样好的孩子。
2、
(1)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.
(2) too…to…与 not enough to句型的转换：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 taller 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 is getting stronger and stronger.
二、情态动词
1.考查情态动词表示“推测”的用法
[考点快忆] 表示肯定推测的情态动词有：must“一定；准是”，may“也许；可能”，might“或许”；表示否定推测的情态动词有：can't“不可能”， couldn't“不会”，may not“也许不”，might not“或许不”；can表示推测时不用于肯定句，may表示推测时不用于疑问句。
2.考查情态动词引起的一般疑问句的答语
[考点快忆] 回答must时，肯定答语用must,否定答语用needn't或don't have to。回答need时，肯定答语用must,否定答语用needn't。回答may时，肯定答语用may，否定答语用mustn't 或can't。
3.考查情态动词的意义
[考点快忆] must “必须”；have to“不得不”；need “必须；需要”；can(could)“能；可能”；may (might) “可以；可能”；shall，will (would)“将；会；愿意；要”；should“应当”。
“had better (not) + 动词原形”表示建议；have to / has to ／ had to的否定，疑问形式要借助于助动词do ／ does ／ did。
三、There be 的句子结构
There be是一个“存在”句型，表示“有”的意思，肯定句的形式为：There be + 名词（单数或复数）+地点状语或时间状语。be动词单复数的确定，看be后边第一个名词，当所接主语为单数或不可数名词时，be动词形式为is；当所接主语为复数名词时，be动词为are；当be动词后接两个以上主语时，be动词与最临近主语保持数上的一致。意思为“某地有某人或某物”。如：There is an eraser and two pens>There are two pens and an eraser
（1）there be的否定句，即在be的后面加上not。否定形式为：There be + not + （any） + 名词+地点状语。There is not any cat in the room. 房间里没猫。There aren't any books
（2）there be句型的疑问句就是将be提到句首：Be there + （any） +名词+地点状语肯定回答：Yes, there is / are. 否定回答：No, there isn't / aren't.-Is there a dog in the picture?画上有一只狗吗-Yes, there is. 有。-Are there any boats in the river?河里有船吗-No, there aren't. 没有。（3）特殊疑问句：How many . . . are there （+地点状语）某地有多少人或物回答用There be . . .有时直接就用数字来回答。One. / Two . . .-How many students are there in the classroom?教室里有多少学生
（4）如果名词是不可数名词，用：How much + 不可数名词 + is there + 地点状语How much water is there in the cup?杯中有多少水.
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