掌握英语每一个重要的知识点，会在考试中如鱼得水。下面小编为大家带来初一英语上册必背知识点归纳总结，欢迎大家参考阅读，希望大家喜欢!
初一英语上册必背知识点
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 .
初一英语上册知识点总结
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 ClothesStore (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)
初一英语上册知识点归纳
单数句变复数句
1. 可数名词单数要变为其相应的复数形式。
It is a box.→ They are boxes.
2. 各个人称代词要由单数形式变为复数形式。
She is a girl.→ They are girls. I am at home.→ We are at home.
3. am或is 要变为are.
He is a teacher. → They are teachers.
4.指示代词this或that要分别变为these或those。
This is a pencil.→ These are pencils.
5. 不定冠词a/an要去掉(固定搭配例外)。
It is a black cat.→ They are black cats.
6. man或 woman做定语修饰可数名词，在整个句子变成复数的情况下也要变成 men或women.
She is a woman teacher.→ They are women teachers.
注意：在单数句变复数句时，普通单数变为复数形式，但当名词修饰名词时，起修饰作用的名词不做变化。名词修饰名词常用单数。(man,woman除外)
This is a apple tree.→ These are apple trees.
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