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know的过去式,过去分词和现在分词

know的过去式,过去分词和现在分词

2024-01-29 18:03:04 475浏览

know是个动词,既可以表示知道,也可以表示认识到,懂得,还可以表示熟悉,了解,它的过去式,过去分词和现在分词是考试中经常考察的,下面将详细介绍。

know的过去式,过去分词和现在分词:

过去式:knew。

过去分词:known。

现在分词:knowing。

相关例句:

He knew what he wanted to do from the age of 14. 

他14岁起就知道自己日后干什么了。

She knew she had only to call and he would come running.

她知道只要打个电话,他就会高高兴兴地照办。

Diamonds are the hardest known mineral.

钻石是已知的最坚硬的矿石。

Knowing the truth relieved the anxious parents.

知道事情的真相使焦急的父母大为宽心。

Knowing who they are is a start.

我们首先得知道他们是谁。

know的用法:

1、know + 句子:知道/了解...(宾语从句)。

如:

I know (that)tomorrow is your birthday.

我知道明天是你的生日。

I don't know what he wants to do now.

我不知道他现在想要做什么。

Do you know where the supermarket is?

你知道超市在哪里吗?

注意:know 后面的宾语从句要用陈述语序。

2、know + 特殊疑问词 + to do,(重点用法)。

如:

I don't know what to do next.

我不知道接下来该做什么。

He knows how to do it.

他知道怎么做。

We don't know where to go.

我们不知道该去哪里。

注意:此结构为宾语从句的变形:

如:

I don't know what to do next.

= I don't know what I should do next.

当从句的主语与主句的主语(或宾语)相同时,才能变形。

如:

My mom let me know how I could make the soup.

妈妈让我明白了怎样做汤。

从句主语 I 与主句的宾语 me 一致,可变形:

= My mom let me know how to make the soup.

known的固定搭配:

1、known as “作为…而出名”;“被称作…”,as后面的宾语与句子主语是同位的。

如:

George is known as a successful banker. 

乔治作为成功的银行家而出名。

The first tomb, known as Chang Ling, was built in the 15th century.

第一座陵墓叫长陵修建于是5世纪。

2、known by “凭……来判断或认识”一般不太常用,多出现在某些谚语中。

如:

A man is known by the company he keeps. 

见其友,知其人。

3、known for “因……而出名”,for后面多接表示特征、品质之类的词。

如:

Guilin is known for its beautiful sceneries. 

桂林因风景优美而闻名。

He is known for his frankness.

他以坦率而出名。

4、known to “为……所知的”,to后面常接表示人的名词或代词。

如:

She is known to everyone in the college.

他在学院里人人皆知。

The usage of that word is known to us all.

这个词的用法我们人人皆知。

5、其它的词组搭配:

well known 众所周知的;出名的

best known 最著名的

known about 知道关于……的事情

make known 表明,公布;报告;透露

should have known 本应该知道

as is well known 众所周知

as known to all 众所周知

known quantity 熟知的人或事;已知量

make yourself known to sb 向某人作自我介绍

know的同义词辨析:

know、learn、comprehend、understand这些动词都含懂,知道,明了之意。

know:普通用词,多指通过学习、经验或他人传播而得到知识,含直接知道的意味。

learn:通常指通过他人而获得消息或情况,侧重从不知到知的变化过程。

comprehend:侧重熟悉了解的过程。

understand:指对事物已有彻底的认识,不仅知其性质、含义和细节,而且了解其内外的关系。

know的词组搭配:

know about 了解;知道...的情况

know better 明事理;有头脑

know Ignorance 知其不知

know little 知道得很少;知之不多

know more 知道更多;知识创新;比较深入

know service 知名服务

know limitations 了解的限制;知道的局限性

know none 知道没有;都不认识

in the know 知道实情;掌握内幕

as you know 如你所知;你知道

know for sure 确知;肯定知道

know of 知道;了解;听说过...

there's no knowing 难以预料;无从知道;没法说

be not to know 无从知道;并不知道(做错了事)

Heaven knows 谁知道;天晓得

know sb by sight 与某人面熟

know full well 非常清楚;不可否认;不可忽视

know your own mind 知道自己想做什么;有主见

let sb know 让某人知道;告诉(或通知)某人

know your stuff 精通业务;对工作很内行