对于初中英语的学习应该是主动、自主的。只要不断加强知识的积累,才能真正学好英语。下面是本站小编为大家整理的初一英语知识归纳总结,希望对大家有用!
初一英语知识重点归纳句子种类
(1)按使用目的可分为陈述句、疑问句、祈使句和感叹句。
1) 陈述句(Declarative Sentences):说明一个事实或陈述看法。
She is at home. 她在家。
He speaks English. 他讲英语。
2) 疑问句(Interrogative Sentences):提出问题。有以下四种:
a. 一般疑问句(General Questions):
Is this your pencil? 这是你的铅笔吗?
b. 特殊疑问句(W Questions; H Questions):
Where do you live? 你住哪儿?
How do you know that? 你怎么知道那件事?
c. 选择疑问句(Alternative Questions):
Do you like tea or juice?
你是要茶还是果汁?
d. 反意疑问句(Tag-Questions):
He knows her, doesn’t he?
他认识她,对不对?
3) 祈使句(Imperative Sentences):提出请求,建议或发出命令,例如:
Sit down, please. 请坐。
Let’s go home! 让我们回家吧!
4)感叹句(Exclamatory Sentences):表示说话人惊奇、喜悦、愤怒等情绪,例如:
What good news it is! 多好的消息啊!
初一英语知识要点单数句变复数句
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.
初一英语知识时间状语从句种类
1、引导的从句表示主从句的动作同时发生,或从句的动作在主句之前。when引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词。例如:
When she came in, I stopped eating.她进来时,我停止吃饭。(瞬时动词)
When I lived in the countryside, I used to carry some water for him.当我住在农村时,我常常为他担水。(延续性的动词)
We were about to leave when he came in.我们就要离开,就在那时他进来了。
2、While引导的从句的谓语动作必须是延续性的,并强调主句和从句的动作同时发生(或者相对应)。并且while有时还可以表示对比。例如:While my wife was reading the newspaper, I was watching TV. (was reading是延续性的动词,was reading和was watching同时发生)I like playing football while you like playing basketball.我喜欢踢足球,而你喜欢打篮球。(对比)
3、As表示“一边……一边”,as引导的'动作是延续性的动作,一般用于主句和从句动作同时发生;as也可以强调“一先一后。例如:We always sing as we walk.我们总是边走边唱。(as表示”一边……一边“)As we was going out, it began to snow.当我们出门时,开始下雪了。(as强调句中两个动作紧接着先后发生,而不强调开始下雪的特定时间)
4、由before和after引导的时间状语从句,表示两个动作一前一后发生。 例如:It will be four days before they come back. 他们要过四天才能回来。
After you think it over, please let me know what you decide.你仔细考虑过以后,告诉我你是怎样决定的。
5、由till或until引导的时间状语从句。till和until一般情况下两者可以互换,但是在强调句型中多用until.并且要注意的是:如果主句中的谓语动词是瞬时动词时,必须用否定形式;如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同。till不可以用在句首,而until可以放在句首。例如:
I didn't go to bed until(till)my father came back.直到我父亲回来我才上床睡觉。 I worked until he came back.我工作到他回来为止。
6、由since引导的时间状语从句表示“自从……以来”。
I have been in Beijing since you left. 自从你离开以来,我一直在北京了。
7、由as soon as引导的时间状语从句表示“一……就”。例如: