a / an，要么在后面加上 s / es，或者有其他的限定词(my,some,the)a / an ，后面也不加 s / es，但可以加限定词water runs. —— 水流（water / air ）和数不清（corn / rice）结构： 主 + 不及物动词 + 介词 + 宾语
不及物动词 -> 不完全，与介词一起构成组合动词，组合谓语
介词通常翻译不来
不介宾属于主谓宾句型
(1) Look at
She looks at the boy earnestly.
(2) Listen to
He listens to the waves on the beach.
I listened carefully to his story.
(3) Think about 想起
I often think about my friends.
They think hard about their plans.
(4) Talk about 说起
Farmers talk about the big freeze.
(5) Look for 寻找
We look for an agent in the Middle East.
(6) Look after 照顾
She looks after children in the kindergarden.
(7) Agree with
I agree with her analysis of the situation.
(8) Deal with 处理，解决
Our New York branch deals with the matter.
(9) Worry about
He always worried about his weight.
(10) Laugh at 嘲笑
Everybody laugh at my accent.
I watch TV
谓语：第一个动词
可以用中文说成被字句，成立则为主谓宾
同时，主语，宾语通常是人和事物，谓语通常是动作
分为绝对主谓和相对主谓
相对的主谓 —— 可以接宾语