have和having的區(qū)別和用法：含義不同、用法不同。have可作動詞和助動詞，含義為持有、由……組成、顯示出等，常與過去分詞連用構(gòu)成完成時；having只作動詞，含義為有、顯示出、帶有等，一般用于系動詞或介詞之后。
一、have的含義及用法介紹
1、作為動詞，意為有;持有;占有;由…組成;顯示出，帶有(性質(zhì)、特征)。
例句：He had a new car and a boat.
他有一輛新車和一條船。
In 1999 the party had 10 000 members.
這個黨在1999年時擁有1萬名黨員。
The ham had a smoky flavour.
這火腿散發(fā)著一種煙熏的香味。
Surely she didn't have the nerve to say that to him?
她一定沒有膽量跟他這樣說吧？
I went to a few parties and had a good time.
我參加了幾次聚會，過得很愉快。
2、作為助動詞，與過去分詞連用構(gòu)成完成時。
例句：I've finished my work.
我干完我的活兒了。
Had they left before you got there?
你到那里時他們已經(jīng)離開了嗎？
If I hadn't seen it with my own eyes I wouldn't have believed it.
要不是親眼看見了，我不會相信的。
二、having的含義及用法介紹
having作為動詞，是have的現(xiàn)在分詞，意為有;持有;占有;由…組成;顯示出，帶有(性質(zhì)、特征)。
例句：Our son's having problems with his reading and writing.
我們兒子在讀寫方面有困難。
I'm having treatment for my back problem.
我正接受背部疾患的治療。
Few people can count on having a job for life.
幾乎沒有人能指望一輩子都干一個工作。
