1．have和have got英美说“有”句法不同。
如：Have you any sisters? （英）Have you got any sisters?（英，口语）Do you have any sisters? （美）但指“经常性、反复进行”时，只能用have。
如：I've got a toothache.我牙疼。
（一时性）I often have a toothache.我经常牙疼。
（经常性）have与由动词转化的名词组成短语时，不能用have got代替，只能用have。
如: have a dance, have a dream, have a drink, have a fight, have a joke, have a look, have a rest, have a swim。
一些习惯用语和句型中的have不能用have got代替。
如：have a bath, have a holiday, have a lesson, have breakfast/lunch/supper 以及havea talk with…, have a word with…等。
2．have和there be（1）have表“所属”关系的“有”；there be指某处“有”。
如：The man has a brother in Beijing.此人有个弟弟在北京。
There are many books on the desk.桌子上有很多书。
The desk has four legs.书桌有四条腿。
There are many people in the room.房间里有很多人。
（2）在have含“所有”的意义较弱的情况下，可与there be互换。
如：We have much rain this year. = There is much rain this year.今年下了不少雨。
