ent and delight when the People’s Republic of China was founded

the door opened(open是动词)

the door is open(open是形容词)

break sth open打开...

cut open切开

cut it open剪开(信封)

tear it open撕开(信封)

busy as a bee忙得象个蜜蜂

sweet as honey甜得象蜜

sticky as glue胶水一样粘

stong as horse马一样强壮

turn...into把...变成

在固定短语中as...as中得的一个as省略

as busy as a bee中第一个as省略

i am busy as a bee

key structures

have sth done

1、让别人做某事 2、遭遇不幸

i have my leg broken我摔断了腿

i have my wallet lost/stolen我丢了钱包

special difficulties

my family are watching TV新概念英语课文

my family is happy

集合名词做人看：复数;不作人看，单数