广州市新版教材八年级英语上册期中语法复习
Unit1
一、some与any的区别
1）some多用于肯定句，表示“一些，几个”作形容词时，后面可以接①不可数名词+单数动词；②可数名词+复数动词。
Look! Some of the students are cleaning the library.
. Some rice in the bag has been sold out.
2）any多用于疑问句、条件句和否定句中，表示“一些，任何”用作形容词时，后面可以接①不可数名词+单数动词；②可数名词+复数动词。
If you have any questions, please ask me.
There isn't any orange in the bottle.
Have you got any tea?
3）any和some也可以作代词用，表示“一些”。any多用于疑问句或否定句中，some 多用于肯定句中。
How many people can you see in the picture?
I can't see any.
If you have no money, I'll lend you some.
二、复合不定代词
由some,every,no,any分别与one,thing和body组合即可得到以下复合不定代词：
1.一般来说，由some构成的复合不定代词往往用于肯定句中；而由any构成的复合不定代词则往往用于否定句或疑问句中。
I heard someone singing when I was at work last night.
Please give me something to read.
(拓展）由some构成的复合不定代词有时也可用于疑问句中，用来表示请求、建议等语句。Would you like something to read?
Why not buy something interesting?
2.复合不定代词作主语时，谓语动词用单数形式。
Somebody wants to see you.
Is there anything I can do for you ?
3.形容词修饰复合不定代词something,anything,everything,nothing等时，要放在不定代词的后面。
Do you have anything important to tell us?
We need one more helper. Can you find anyone else?
Unit 2
基数词与序数词
一、基数词的用法
基数词是表示数目多少的词
1.用于名词前表示数量的多少。
I have three pens.
2.表示时间。
It’s eleven o’clock now.
3.表示年龄。
My mother is thirty-eight years old.
4.表示价格
The bike is two hundred and thirty-five yuan.
5.基数词在表示确切的数字时，不能使用百、千、百万、十亿的复数形式；但是，当基数词表示不确切数字，如成百、成千上万，三三两两时，基数词则以复数形式出现。
There are two hundred people in the room.
There are hundreds of people in the room.
6.表示人的不确切岁数或年代，用几十的复数形式表示。
He became a professor in his thirties．他三十多岁时成为了教授。
It was in the 1960s．那是在二十世纪六十年代。
二、序数词的用法
序数词是表示顺序先后的词，其主要用法有
1、表示顺序
January is the first month of the year.
2、表示第几次
This is my second time to visit Nanjing.
3、表示日期
Today is the fifth of March..
（拓展）
1、序数词主要用做定语，通常在前面加定冠词the.但序数词前有形容词性物主代词或名词所有格修饰时，不用冠词the
Mr Lin lives on the fifth floor.
Simon is his third child.
2.如果序数词前出现不定冠词a或an,则表示“再，又”。
You’ll have to do it a second time.
3.表示编号时，可用“序数词+名词”或“名词+基数词”。
Let’s study the fifth lesson.=let’s study Lesson Five.
三、加、减、乘、除的英文表达
1. 2 plus 2 is four.
2. 6 minus 3 is three.
3. 7 multiplied by 8 is 56.
4. 16 divided by 4 is 4.
Unit3
一、形容词比较级和最高级
A. 大多数形容词有三种形式，原级，比较级和最高级，以表示形容词说明的性质在程度上的不同。
B. 形容词的原级:形容词的原级形式就是词典中出现的形容词的原形。例如:poor, tall, great，glad, bad等
C. 形容词的比较级和最高级:形容词的比较级和最高级形式是在形容词的原级形式的基础
上变化的。分为规则变化和
不规则变化。
1. 规则变化如下;
