初一英语上册知识点全
※ 名词
①表示人或事物的名称,如 boy, clock, book, tree。
总的说来,名词分为专有名词和普通名词两大类。
专有名词是个别的人、事物、地点等专有的名称,如: Jim, China
专有名词的第一个字母要大写,如:Beijing, New York
②名词按其所表示的事物的性质分为可数名词和不可数名词。
可数名词:可以用数目计算,有单数和复数两种形式,如:an apple, two apples, a car, some cars
不可数名词:一般无法用数目计算,没有复数形式,且不用不定冠词a/an修饰,如:water, milk, meat, tea, bread, rice
③单数名词变复数名词的规则如下表:
注:①少数名词的复数是不规则的,如: man→men woman→women child→children
②表示民族的名词,有的在词尾加 s ,如: an American→three Americans
③有的单、复数形式相同,如: a Chinese→four Chinese a sheep→three sheep a deer→five deer
※ 冠词
冠词是一种虚词,不能单独使用,只能和一个名词一起使用,并帮助说明此名词。冠词有两类,即定冠词the 和不定冠词a/an。
①不定冠词 常表示“一”的概念,有两种形式:a和an。a用在辅音音素开头的单数可数名词前,如:a book, a pen;an用在元音音素开头的名词前,如:an apple,an orange,an egg。
②定冠词the 常表示“这个”“那个”“这些”“那些”的概念,the在元音音素前读,在辅音音素前读 ,如:the moon, the evening。
①-Do you have an English book?
-Yes, but the English book is
② There is a chicken in the
③ We can't see the sun at
④ The Browns are going to the park this
⑤ Shanghai is in the east of
※ 形容词
用来修饰名词,表示人或事物的特征,在句中可以作定语、表语、宾语补足语。
如: It's a sunny day Let's go to the
This book is
It's very nice of you to help
常见形容词的同义词与近义词:
large→big 大的
glad→happy/pleased 高兴的
clever→bright 聪明的
ill→sick 病的
fine→well 好的
常见形容词的反义词和对应词:
bad(坏的)→good(好的)
big(大的)→small(小的)
busy(忙的)→ free(空闲的)
dry(干的)→wet(湿的)
same(相同的)→different(不同的)
empty(空的)→full(满的)
cold(寒冷的)→hot(热的)
open(开着的)→closed(关闭的)
poor(穷的)→rich(富的)
※ 副词
用来修饰动词、形容词、其他副词或全句,在句中作状语或表语。
Now he is back in New York
现在他又回到了纽约。
Mike is a good He often does his homework
副词一般分为七大类:
①时间副词: now, often, then, early, ago, before
②地点副词: here, there, out, above, up, down
③方式副词: hard, well, badly, fast, slowly
④程度副词: very, much, still, almost, too, so
⑤疑问副词: how, when, why, where
⑥关系副词: when, where, why
⑦连接副词: now, where, why
often 等表示“频率”的时间副词,总被放在句子中间,又称“中置副词”。这类副词有 always(总是)、 usually(通常)、sometimes(有时)、ever(曾经)、never(从不)等。
“中置”规律:
①放在单个的 be 动词之后;
②放在单个实义动词之前;
③谓语动词为多个词时,放在第一个助动词或情态动词之后。
如: You are always late for 你总是上学迟到。
I usually go to school by
I never see that
He often helps other
He goes to work on foot
※ 比较等级
在进行比较的时候,形容词和副词有原级、比较级和级三种形式。
规则形容词和副词的比较级和级加 -er或-est。
(1)不规则变化的形容词和副词如下:
→better→best
→wors →worst
(许多)many/much→more→most
(几乎没有)little→less→least
(远的)far→farther→farthest
(老的,旧的)old
(2)三种句型
① 原级句型:
as+形容词/副词+as,表示“和…一样”;否定句式:not as/so +形容词/副词+as,表示“和…不一样”。
I think Kate does just as well as
If you like the chicken, you may have as much as you
I don't like the It's not so interesting as that
② 比较级句型:
主语+谓语+比较级+than+其它,表示“较…一些”。
This city is more beautiful than that
It is hotter today than
He is a much nicer
比较级+and+比较级,more and more+原级,表示“越来越…”,说明本身程度的改变。
The world's population is growing faster and
世界人口增长得越来越快。
more and more beautiful
越来越漂亮
the+比较级, the+比较级,表示“越…就越…”,说明随着前边条件的变化,后边的结果也发生变化。
The more she eats, the fatter she'll 她吃得越多就会越胖。
The more, the 越多越好。
③ 级句型:
主语+谓语+(the)形容词或副词的级+in/of
注:级前一般要用the,如: He is the most careful
但在副词级前the可以省去,如:He writes(the)most carefully in his
This kind of cake is the most
I like English
Mike is the youngest in his
He runs