1. a, an的选择: 元音字母开头的单词用an,辅音字母开头的单词用a.
2 am , is , are的选择: 单数用is, 复数用are.
人称
be 动词
I
am
You, We, They
are
He, She, It, 某个人(Mike), 某个身份(My father)
is
3. have , has 的选择: 表示某人有某物。主语是第三人称单数时用has.
4. there is, there are 的选择:表示某地有某物,某人。单数用there is , 复数用there are.
5. some, any 的选择:肯定句用some, 疑问句和否定句用any.
6. 疑问词的选择:what (什么) who (谁) where(哪里) whose(谁的) why(为什么)when(什么时候)which(哪一个)how(怎样,如何)how old (多大) how many (多少)how much(多少钱)how heavy(多重)how big(多大)how long(多长)how tall(多高)
二:形容词比较级详解
当我们需要对事物作出比较时,需要用到比较级。比较级的句子结构通常是:
A + be (am , is , are ) + 形容词比较级+ than(比)+ B A 比B更……,如:
I’m taller and heavier than you. (我比你更高和更重。)
An elephant is bigger than a tiger. (一只大象比一只老虎更大。)
形容词的比较级是在形容词的基础上变化而来的,它的变化规则是:
①一般的直接在词尾加er ,如 tall - taller , strong - stronger ,
②以e结尾的,直接加r ,如 fine – finer,
③以辅音字母加y结尾的,先改y为i再加er,如
funny– funnier, heavy-heavier
④双写最后的字母再加er,如big – bigger, thin – thinner ,hot – hotter
☆注意☆比较的两者应该是互相对应的可比较的东西。
典型错误:My hair is longer than you.(我的头发比你更长。)
比较的两者是我的头发、你(整个人),那么比较的对象就没有可比性。
应该改为:My hair is longer than yours. 或My hair is longer than your hair.
比较级专项练****一、从方框中选出合适的单词完成句子 heavy tall long big
(1) How is the Yellow River?
(2) How is Mr Green? He’s 175cm.
(3) How are your feet? I wear size 18.
(4)How is the fish? It’s 2kg.
根据答句写出问句
(1) I’m 160 cm.
(2) I’m 12 years old.
(4) Amy’s hair is 30 cm long.
注意:How +形容词原形。
二、根据句意写出所缺的单词
(1) I’m 12 years old. You’re 14. I’m than you.
(2) A rabbit’s tail is than a monkey’s tail.
(3) An elephant is than a pig.
(4) A lake is than a sea.
三、根据中文完成句子.
(1)? 我比我的弟弟大三岁. I’m than my brother.
(2)? 这棵树要比那棵树高. This tree than that one.
(3)? 你比他矮四厘米. You are
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