have的用法小结
一、have作为助动词构成各种完成时(包括过去、现在、将来)和完成进行时: e.g. 我今天上午没见过他。I haven?t seen him this morning.
我打电话的时候,杰克已经走了。When I rang, Jack had already left.
二、have与to一起构成情态动词 have to,表示“不得不”、“必须”, 它比must更含有“客观条件使得必须如此做”的意思,可用于各种时态。如: 格林先生不得不为了生计而工作
Mr. Green has to work very hard to earn a living.
昨晚我只得早点离开晚会,我不大舒服。
I had to leave the party early last night. I wasn’t very well. 我们明天必须起得很早。
We will have to get up very early tomorrow.
我咳嗽的厉害,今天必须去诊所看看。
I shall have to go to the clinic ['klinik] today for my bad cough.
三、have用于“情态动词+have+过去分词”的结构,有推测、假设之意。 1.must+have+过去分词,表示对过去时间发生的动作或存在的情况的推测,表示“一定”、“准是”的意思。一般用于肯定句。如:
e.g. 你一定是误会了我的意图。
You must have mistaken my intention.
She must have been very young when she got married.
她结婚时一定很年轻 2.can(could)+have+过去分词,常用于否定句和疑问句。表示对过去发生事情的“可能性”。而could较can更加表示说话人的“不肯定的”语气。如: e.g. 他会是走了吗?
Can he have left already?
她会把我的地址忘记了吗?
Could she have forgotten my address?
他当然不可能这么早到这里的。
Surely he can not have arrived so early. 3.should+have+过去分词,这时句子指的是过去的事情。如果是肯定句,常说明某件事本应完成而未完成;如果是否定句,表示发生了不应当发生的事情。如: e.g. 他应早一点来。
He should have come earlier.
你见了红灯本应该停车。
You should have stopped at the red light.
你不应当未经医生许可就回去工作。
You should not have gone back to work without the doctor?s permission.
四、have作实意动词。 1. have作状态动词,不用于进行时:
表示“具有”、“拥有”讲时(相当于own, possess),它和have got通常可以互换。 e.g. 他有一栋房子。
He owns a house. / He has a house. / He has got a house. / He possesses a house.
2. have作实意动词时,还可以表示eat, drink, enjoy, take等意思,这时它是行为动词,可以用于包括进行时的各种时态;当have用于表示这些含义时,它必须与do和did等连用以构成疑问句和否定句。
3. have on sth.或have sth. on,表示“穿着”、“戴着”(=to be wearing)。 e.g. I noticed he had on slippers.
我注意到他穿着拖鞋。
4.组成复合结构即“have+宾语+宾语补足语”。
1) 不加to的动词不定式作宾语补足语(have sb. do sth.),表示让、叫某人做某事。
e.g. The soldier had him stand with his back to his father.
这个士兵让他背对着他父亲站着。
第二篇:have 和 has的用法
have和has与主语搭配:
I She
We He
You have… It has…
They The boy
Tony and Jenny Jenny
可见,主语为第三人称单数时用has,其余人称都用have。
have / has的含义及用法:
1.作“有”讲。 如:I have a bag. 我有一个包。
He has a red cup. 他有一个红杯子。
2.作“吃、喝”讲。如:have breakfast (吃早饭) have tea (喝
茶)
have a biscuit (吃块饼干) have a drink (喝点
水)
( A )6Tom and I a football. A. have B.has C.
are
( B )7.It big leaves. A. have B.has C.is ( A )8.Can he now? A. have B.has C.is 关于have和has的练习其实也不是很难哦,不过上课的时候有的小朋友还是有些马虎哦,那么希望通过以下的练习能够加深印象!
1.I ____ (have) a cat.
2.He ____ (have) a dog.
3.She ____ (have) long hair.
4.We ____ (have) a big house.
5.They ____ (have) a happy family.
6.It ____ (have) a short tail.
7.You ____ (have) a good teacher.
8.Elva ____ (have) two big eyes.
9.Tom ____ (have) a red pen.
10.My mother ____ (have) a beautiful nose.
11.Cats ____ (have) four legs.
12.Dogs ____ (have) two ears.
13.My father ____ (have) a blue car.
14.Everybody ____ (have) two hands.
15.I ____ (have) a model plane.
16.Lily ____ (have) a doll.
17.Students ____ (have) many books.
18.Girls ____ (have) many skirts.
19.The baby ____ (have) no teeth.
20.They ____ (have) some fish.