初中英语所有知识点
初中英语所有知识点：一般疑问句
Are you a student?yes.i am/no I am not.
Can you speak english?yes.i am/no I can not
Have they been living here for 20 year?yes.they have/no.they haven′t.
2、如果是单个实义动词，一般现在时要在主语前加助动词do或者does,过去时要加助动词did,而主语后的谓语动词须用动词原形。
Does he do his homework every evening?
Does she go to school yesterday?
初中英语所有知识点：特殊疑问句
1、特殊疑问句一般以疑问代词who/whom/whose/which/what和疑问副词when/where/why/how以及how引出的词组how many/how long等开头，不能用yes或者no来回答，句子通常用降调。
2、语序：当疑问词或由其所修饰的词不作主语时，用一般疑问句语序。
疑问词+一般疑问句
当疑问词或由其所修饰的动词作主语时，用陈述句语序。
疑问句+陈述句
When did you begin to learn english?
Who (which student)is the talls in your class?
3、who/what/which作主语时，通常按第三人称单数对待。
Who is knocking at the door?
4、what is sb?是问职业;who is sb?是问姓名或者与某人的关系。
5、how many/how much/how long/how soon/how often/how many times/how far/how old等词的用法区别。
How many+可数名词复数/how much+不可数名词(都是问数量)
how long：问一段延续的时间有多长，回答用for+一般时间或者since+点时间。
how soon：问某事过多久将会发生，回答用in+一般时间。
how often：问某一动作重复发生的频率或间隔的时间，回答用three times a day.
how many times：对动作的次数提问，回答时用once/twice等词。
how far：对路程、距离进行提问。
how old：对年龄进行提问。
1)three are fifity students in our class.
How many studenta are there in your class?
2)this shirt is twenty-five yuan.
How much is this shirt?
3)my uncle has taught english for twenty years.
How long has your uncle taught english?
4)i go to the cinema once a week.
How often do you go to the cinema?
5)it is about three kilometers away from your school to our home town.
How far is it from our school to your hometown?
6)jim will come back in threedays.
How soon will jim comeback?
7)i have been to the greatwall ongly once.
How many times have you been to the greatwall?
8)he is only five years old.
How old is he?
初中英语所有知识点：选择疑问句
1、提出两个(或多个)选项看那一个正确的句子。
2、两部分(或多部分)由or连接，or前的部分读升调，or后的部分读降调。
3、不能用yes或no来回答，语序为一般疑问句语序。
Are you a teacher or a student?
I am,a student.
初中英语所有知识点：反意疑问句
反意疑问句的构成是：陈述句+简短问句
1、若陈述部分是肯定形式，简短就用否定形式;若陈述部分是否定形式，简短问句要用肯定形式。
Li ping is a boy,isn′t he?
Liu mei isn′t tall,is she?
2、当陈述部分的谓语动词是实义动词have，简短问句用do的相应形式。
We have only bread for breakfast,don′t we?
You all had a good time,didn′t you?
3、当陈述句的主语是I/one/everyone/anyone/someone/each/
Everything等代词时，简短问句有下列几种情况：
(1)i am a teacher,aren′t I ?(ain′t I ?)
(2)one can′t study too hard,canone?
(3)everyone knowa the secret,don′t they?(doesn′t he ?)
(4)nobody can do it,can they?
(5)everything has gone wrong today,hasn′t it?
(6)nothing can frighten him,can it?
4、当陈述部分带有never/seldom/hardly/few/little等含否定或部分否定意义时，简短问句要用肯定形式。
He has never done it,has he?
It seldom rains in the desert, doesn′t?
5、若陈述部分为祈使句时，简短问句一般要用“will you”或者“shall you”.
Do it again,will you?
Let is go to school, shall we ?
注意：let us go home，will you ?
6、若陈述部分为“there be+主语+状语”的句型时，后面的简短问句中要用there.
There will be a meeting tomorrow,won′t there?
7、若陈述部分有含否定意义的前缀的单词时，陈述部分仍视为肯定形式，简短问句用否定形式。
She is unhappy,isn′t she?
8、若陈述部分是表示建议的“you′d better not…”句式时，疑问部分常用will you?当you′d better的句式是肯定形式时，疑问部分可用hadn′t you?
you′d better not go now,will you?
you′d better stay in bed till tomorrow , hadn′t you?
9、若陈述部分中用need或dare作助动词，简短问句中仍用need或dare;若他们用作实义动词时，简短问句开头要用助动词do的适当形式。
You needn′t clean it ,need you ?
He needs a dictionary, dosen′t he ?
10、若陈述部分中的must作必须解时，简短问句中用must.若must含“推断”或“判断”意义时，简短句开头要用must后面动词的适当形式。
例：
We must finish it today,mustn′t we ?
It must be ling feng ,isn′t it ?
11、当陈述部分是一个含有以that引导的宾语从句的复合句时，疑问部分多以主句为反问原体。
We are sure that we can beat them ,aren′t we?
They said that they had a good time,didn′t they?
12、若陈述部分是“I think(believe)+that从句”时，其简短问句的主语和谓语应与从句的主语和谓语保持人称、数和时态上的一致。
例如：I don′t think he is right，is he ?
初中英语所有知识点：祈使句
1、祈使句表示请求、命令、叮嘱、号召等，谓语动词用原形。
例如：come in be careful!
2、祈使句的否定形式以do not(缩写为don′t)或never引起。
例如：don′t be careless. Never do that again.
3、“do +祈使句”表示一种强烈的感情或请示。
例如：do come on time(务必)准时来。
4、在直接引语变间接引语中，祈使句的肯定形式为to do…，否定形式为not to do….
例：(1)the teacher said to the student,“come in ,please”.
The teacher asked the student to come in.
(2)mom told the child ,don′t play with fire.
Mom asked the child not to play with fire.
5、let+宾语+宾补，构成祈使句
例如：let me help you.
初中英语所有知识点：感叹句
1、what作定语，用来修饰名词，结构如下：
(1)当被修饰的词是可数名词的单数形式时，用下面的结构。
What+a(n)+形容词+单数可数名词+主语+谓语
例如：what a useful dictionary it is!
What an interesting film this is.
(2)当被修饰的词是可数名词的复数形式时，用下面的结构。
What+形容词+复数可数名词+主语+谓语
例如：what clever student they are!
(3)当被修饰的词是不可数名词时，用下面的结构：
What+形容词+不可数名词+主语+谓语
例如：what fine weather it is!
2、how 用来修饰形容词、副词或动词，结构如下：
(1)how+形容词+主语+谓语
例如：how beautiful the pictures are!
(2)how+形容词+a(n)+单数可数名词+主语+谓语
例如：how good an idea this is!
(3)how+副词+主语+谓语
例如：how well the children draw!
(4)how+主语+谓语
例如：how time flies!
3、感叹词的省略形式。
无论是what还是how引导的感叹句，都常在口语中省略句子的主语和谓语。
例如：what a good child!
How fast!
初中英语所有知识点：倒装句
1、在there/here+be(或表示状语性的动词)结构中使用倒装句式。
There are some flowers in the picture.
Long ,long ago,there lived a king.
Here is a little for you.
2、在以there/here/in/out/up/down/away等副词引起的句子中，使用倒装句式，表示强调。
例：here comes the bus!
Out ran the children.
注意：如果主语是人称代词时，主谓部分要用陈述句语序。
例如：here you are! There he is!
3、在以so 开头的句子中使用倒装句式表示“也”
例：he can ride a bike,and so can I !
注意：如果前句的谓语动词是实义动词或系动词，倒装结构中用助动词do/dose/did或系动词be,如果前句中含有助动词或情态动词，倒装结构中则要根据倒装结构的主语使用相应的助动词或情态动词。
例如：he is working hard,and so are we.
4、so有时也可以表示对前句内容的进一步肯定，意思相当于“是的”、“的确如此”，此时不可用倒装句。
It is fine today,isn′t it ?今天天气不错，是吗?
Oh, so it is.啊，的确如此。(不用so is it )
5、在以neither/nor开头的句子中，常使用倒装句式，表示“也不”
例如：tom didn′t watch tv last night,neither/nor did I .
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