最新版初中八年级下册英语知识归纳
成功的快乐在于一次又一次对自己的肯定，而不在于长久满足于某件事情的完成。接下来应届毕业生考试网小编为大家精心整理了最新版初中八年级下册英语知识归纳，欢迎大家阅读收藏。
in 介词，构成一个短词
Put on your old clothes tomorrow, because we’ll do some cleaning.
Kate is wearing a red sweater today.
The man in a blue suit is Mr. Li
18.
在if 引导的条件状语从句、以when , before, after , as soon as 引导的时间状语从句, 当主句是：一般将来时态、含情态动词或祈使句的情况下，从句用一般现在时表示将来时。
We’ll go hiking if it doesn’t rain tomorrow.
it doesn’t rain
=
it isn’t rainy
I’ll tell her the good news as soon as I see her.
同样的情况还适用于not ---- until 句型
I won’t go to bed until I finish my homework.
19.
在以when
引导的`时间状语从句, 当从句是一般过去时态时，主句往往用过去进行时,表示在过去的某一时刻正在发生或正在进行的动作：
They were having supper when I got to their home.
20.
It’s time for sth /
It’s time to do sth /
It’s time for sb to do sth.
It’s time for us to start our lesson now.
21.
It takes /
It took /
It will take
somebody some time to do something.
It took them twenty minutes to finish the cleaning.
It will take us about ten hours to finish our homework.
22.
it 作形式主语或形式宾语，其真正的主语或宾语是后面带to 的动词不定式:
It’s necessary to learn English well.
We found it difficult to work out the maths problems.
23.
too ----
to 句型,
too ---- for sb to
do sth ----，对某人来说太-----以致于不能-----
The apples on the
tree
are too high for me to reach.
Kate is too young to go to school.
24.
enough 用法：形前名后， big enough
;
enough food
----- enough to do sth
足够-------能够-------
Jim is old enough to go to school.
25.
little , a little 修饰不可数名词 ;
much 修饰不可数
few a few 修饰可数名词;
many 修饰可数
a little
a few 具有肯定含义little few 具有否定含义
some, any , a lot of = lots of 既可以 修饰不可数，也可以修饰可数名词;
There
is a little time left, take it easy.
We’d better go shopping ,there are few eggs left.
Mr. Little doesn’t have much money. (否定句中常用much而不用a lot of )
26.
much too 中心词是too, 常修饰形容词,
It’s much too cold today,
we should wear warm clothes.
too much中心词是much, 常修饰不可数名词,
There’s too much water,
please be careful..
27.
有关情态动词的问答：
May I ------?
No, you can’t.
No, you mustn’t.
Must I /
we
-----?
No, you needn’t.
要注意could 和can的区别：could可表示语气的委婉，也表示过去的能力
Could you help me ?
Could she swim when she was four years old?
要注意must 和have to 的区别：must强调主观, have to 强调客观
要注意maybe和 may be的区别 ： maybe在句中作谓语
Maybe it’s here.
It may be here.
28.
不定代词：someone, anyone ; something , anything , nothing ; somebody , anybody, nobody.
Something常用于肯定句和表示请求的疑问句中 ， anything用于否定句中和疑问句中，not anything = nothing
;
without anything =
with nothing
Would you like something to eat?
I’d like Chinese tea with nothing in it .
形容词修饰不定代词要放在不定代词后面：
Be quiet! I have something important to tell you.
Is there anything interesting in today’s newspaper?
29.
反身代词: myself, yourself, himself, herself, itself, ourselves, yourselves, themselves.
要记住：一、二人称用物主，第三人称用宾格， 复数self要变selves
和反身代词有关的一些词组：enjoy oneself.
= have a good time.
learn by oneself,
leave one by oneself
She had to teach her son herself.
I don’t need your help, I can do it myself.
30.
形容词修饰名词，副词修饰动词：
What a strong wind!
It’s blowing strongly.
连系动词：be, feel, look, get,
turn , taste, smell, become,
+ 形容词作表语
31.
感叹句：What + a/an + 形容词 + 可数名词的单数形式+ 主语+ 谓语!
What+ 形容词+ 可数名词的复数形式 / 不可数名词+ 主语+ 谓语!
How + 形容词或副词 + 主语+ 谓语!
What a nice day it is !
What beautiful flowers they are!
How happily they are playing!
32.
反意疑问句：要注意前肯后否，前否后肯，要用be动词，助动词或情态动词来做，
要注意否定词：never, little, few, hardly ,nothing, nobody 等
祈使句的反意疑问句用：will you ?
以Let’s开头的反意疑问句用: shall we ?
She usually gets up at six, doesn’t she?
There’s little water in the bottle, is there?
Please take these
books to the office, will you?
You have never been to New York, have you?
33.
形容词和副词的比较级和最高级：要注意比较级和最高级的构成:
规则变化: 要双写的：big, fat, thin, red,
不规则变化：good,
bad,
far,
ill,
比较级用在：than ，
a little + ，
much + ,
最高级用在：
of all, of the three, in his class, in the world等表示有范围的短语中，
one of + 最高级 + 可数名词的复数
34.
以so 引导的倒装句：表示-----也一样，也如此，前后主语要不一致，要通过be动词、助动词、情态动词来做:
I reached home at 9:00, so did my brother.
Canadians eat a lot of beef, so do Chinese people.
35.
either---or----, neither ---- nor ----
连接两个主语，谓语动词采用就近原则;
Either of ----或 Neither of ------谓语动词用单数;
Both of
------或 both
---- and -----谓语动词用复数
Both of them are Chinese.
Neither of them is Australian.
Neither Jim nor I am American.
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