初一英语上册语法知识点
在日常的学习中，大家都背过各种知识点吧?知识点就是一些常考的内容，或者考试经常出题的地方。哪些知识点能够真正帮助到我们呢?以下是人见人爱的小编分享的初一英语上册语法知识点，希望能够给予您一些参考与帮助。
初一英语上册语法知识点
1、动词的种类(四类)
系动词如be(is am are);情态动词如can 、may、need;助动词( do does);行为动词如take 、bring、eat、have(has)、like、sell、buy、sale、play、see、find、go、watch、thank、think等
2、动词的第三人称单数(与名词的复数一样)
如eat(eats) take (takes) buy (buys) play (plays) have(has) are (is)
3、动词的时态(一般现在时)
( 1)含有系动词的
I’m a Chinese boy 。
She is twelve 。
He is Tim’s brother 。
Her mother is an English teacher 。
含有系动词的句子在变一般疑问句时只将“主语和系动词交换位置”，上面句子变成一般疑问句时分别为
Are you a Chinese boy ?(注意第一人称通常变为第二人称)
Is she twelve ?
Is he Tim’s brother ?
Is her mother an English teacher ?
含有系动词的句子在变否定句时只须“在系动词的后边加上not”，前面的几个了陈述句变否定句分别为
I’m not a Chinese boy.
She isn’t twelve 。
He is not Tim’s btother 。
Her mother isn’t an English teacher 。
(2)含有情态动词的。句子( can )，
She can play basketball.
His mother’s cousin can sing many English songs.
含有情态动词的句子在变一般疑问句时只须将“主语和情态动词交换位置”，上面两句变一般疑问句分别为
Can she play basketball ?
Can his mother’s cousin sing many English songs ?
含有情态动词的句子在变否定句时直接在情态动词的后边加上not ，上面两个陈述句变否定句分别为
She can not play basketball 。
His mother’s cousin can not sing many English songs 。
(3)含有行为动词的句子
We have many friends.
They watch TV at 7 in the evening 。
The students take their books to school 。
I have lunch at school 。
You have a sister 。
1含有行为动词的句子在变一般疑问句时要在原句子的前面加do.上面的句子变成一般疑问句分别为
Do you have many friends ?
Do they watch TV at 7 in the evening ?
Do the students take their books to school ?
Do you have lunch at school ?
Do you have a sister ?
2含有行为动词的句子在变否定句时只须在行为动词前加don’t 。上述五个陈述句变否定句分别为
We don’t have many friends.
They don’t watch TV at 7 in the evening 。
The students don’t take their books to school 。
I don’t have lunch at school 。
You don’t have a sister 。
3含有行为动词的句子，当主语是第三人称单数时，行为动词要加s (或es)如：
She has a red pen 。
He has eggs for breakfast 。
Her mother buys a skirt for her 。
She likes thrillers 。
My brother watches TV every evening 。
He wants to go to a movie 。
含有行为动词的句子，当主语是第三人称单数时，变一般疑问句要“在原句子的前面加上does ，同时行为动词要还原”。上面的句子变成一般疑问句分别为：
Does she have a red pen ?
Does he have eggs for breakfast ?
Does her mother buy a skirt for her ?
Does she like thrillers ?
Does your brother watch TV every evening ?
Does he want to go to a movie ?
含有行为动词的句子，当主语是第三人称单数时，变否定句时“在行为动词前面加does’nt ，同时原行为动词要还原”。上面的句子变否定句分别为：
She doesn’t have a red pen 。
He doesn’t have eggs for breakfast 。
Her mother doesn’t buy a skirt for her 。
She doesn’t like thrillers 。
My brother doesn’t watch TV every evening 。
He doesn’t want to go to a movie 。
初一英语上册语法知识点梳理
冠词的用法(名词前面必须要有冠词)
冠词分为定冠词(the)和不定冠词(a, an)两种。
1、定冠词the表示"特指"，可译为"这个"、"那个"、"这些"、"那些"。
2、不定冠词a, an用来表明(可数)名词的数量是"一个"。an用于以元音开头(注意不是以元音字母开头)的单词前，a则英语非元音开头的单词前。
3、不定冠词a, an与基数词one的区别是：不定冠词不是刻意强调"数量"，而基数词则强调"数量"。
助动词(do, does )的用法
只有实意动词作谓语时才涉及使用助动词。以like为例：
(1)当句子为肯定句时不涉及使用助动词，只涉及"主谓一致"原则。
eg : I like English a lot.
Michael likes Chinese food very much.
(2)当句子为否定句时，要根据主语的人称来决定使用相应的助动词：当主语为"三单"时，要使用does;当主语为"非三单"时，用助动词原形do。例如把下列句子变否定句：
Kangkang likes math.----Kangkang doesn't like math.
They like sports.------They don't like sports.
(3)当句子变疑问句时，同样要根据句子的主语来决定在句首使用Do或Does.例如下列句子变问句：
Michael likes Chinese Food.----Does Michael like Chinese food? Yes, he does./ No, he doesn't.
Jane and Helen like music.----Do Jand and Helen like music? Yes, they do./ No, they don't.
名词所有格
1、Kangkang's books;Tom and Helen's desk; Ann's and Maria's bikes;
2、用of表示"。.。.。.的"，但要从of后往of前翻译：a book of mine(我的一本书)
3、have与of的区别：
have一般表示"主动拥有"，往往用于有生命的人或动物;无生命的物体一般不能"主动拥有"，表示所属关系时要用of。例如：
I have a new bike. She has two big eyes.
a door of the house
初一英语上册知识点总结：代词
1、人称代词和物主代词
2、指示代词: this (these) that (those)
3、不定代词 some someone
4、疑问代词 who what how much how old (疑问副词：when where )
5、反身代词 yourself
初一英语上册知识点总结：数量词
1、基数词 one two three four five six seven eight nine ten eleven twelve thirteen fourteen
2、序数词 first second third fourth fifth sixth seventh eighth ninth tenth
初一英语上册知识点总结：介词
本册的介词较少，主要用在介词短语里面，如
on：on sale (销售) \ on weekends (在周末) \ on April 8th, (在四月八日) \ on the desk (在桌子上) \ on TV (在电视上) \
in：in English (用英语) \ in the afternoon (在下午) \ in the case (在盒子里) \
T-shirt in red (红色T恤) \ be in the movie(出演这部电影)\ in September (在九月)
be in our school music festival (参加我们学校的音乐节)
at：call sb.at 3356 (拨打3356找某人) \ at your school (在你们学校里) \ at Huaxing Clothes Store (在华兴服装店)\ at a very good price (以非常优惠的价格) \ at six (六点钟)
have a look at (看一看)
of：a set of (一串…) \ the photo of your family (你的全家照) \ lots of =a lot of (许多) \
date of birth(birthday)(生日)
with：with sb. (同某人一起) \ be good with (和…相处得好) \ help sb. with sth. (帮助某人做某事)
for：thanks for =thank you for (谢谢某人的….) \ bag for sports (运动包) \ pants for $30 (卖30元的裤子) \ see for yourself (亲自看看) \ for girls (对女孩子来说) \ like sth. for lunch (喜欢吃……当作午餐)
about：about Chinese history (有关中国历史)
under：under the desk (在桌子下面)