爱华网hear and see + object +verb-form
hear+宾语+动词原形
see +宾语+动词原形
Typical mistake:
典型错误：
*I heard him went dourn tbestairs.
Hear and see can be followed byobject +infinitive (without to)orobject +-ing.
hear和see后面可以跟：宾语+不定式（不带to）或者：宾语+动词ing的形式
I heard him go down tbe stairs.我听见他下楼了。
I heard him going down the stairs.我听到他下楼了。
There is often a difference of meaning. We use an infinitiveafterhear andsee to say that we heard or saw the whole of anaction orevent, and we use an-ing form to suggest that we heard or sawpartof an action.
意思不同。在hear和see后面用动词原形，表示我们听见或看见行为或事件的整个过程；而用动词的ing形式，表示我们听见或看见行为的一部分。
Compare:
比较：
1、I saw hercross tbe road. (from one side to tbe otber)
我看见她穿过马路。（从一边到另一边）
I saw her crossing tbe road. (in tbe middle of tbe road, on her wayacross)
我看到她穿过马路。（在马路中间，或穿越的途中）
I heard him play Chopin's first ballade. (right through)
我听过他演奏肖邦第一协奏曲。（从头到尾）
I heard him practising Chopin's first ballade.
我听到过他练习肖邦第一协奏曲。
2、 Hear andsee can also be followed by an object and a pastparticiple (with a passive meaning).
hear和see后面也可以跟宾语和过去分词（有被动的意思）
I heard the word 'suffer'repeated several times in a strangevoice.
我听见奇怪的声音suffer这个词重复了几次。
Have you ever seen a television thrown through a window?
你看见电视机从窗户扔出来了吗
3、 After passive forms of hearand see, to is used withthe infinitive.
在hear和see被动式后面，用带to的不定式。
Hewas never heardto say 'thank-you' in hislife.
从未听他说过‘谢您’。
Justice must not only be done; it must be seento be done.
正义，耳听为虚；眼见为实。
Some other words (eg watch,notice, observe) can be used instructures similar to see and hear. The infinitive structure is notused after passive forms of watch andnotice.
其它一些词（例如：watch, notice,observe）可以用于类似see和hear的结构里。在watch和notice被动式后面，不用不定式结构。
