小学二年级英语语法知识点：be动词

1、Basic form:

2、肯定和否定句：I am (not) from London.

　　My eyes are (not) small.

　　My hair is(not) long.

3、一般疑问句：Am I a Chniese? Yes, you are. No, you aren't.

　　Are they American? Yes, they are. No, they aren't.

　　Is the cat fat? Yes, it is. No, it isn't.