英语的一感、二听、三让、四看、半帮助分别是指

Answer 1

一感 指的是feel（感觉）
二听指的是listen to （听）、hear（听见）
三让 指的是let、make、have
四看是指watch、see、look、notice、observe
半帮助是指help。因为既可以说help sb do sth 亦可以说help sb to do sth

英语中有些动词跟不定式作宾语补足语时省去了to，其中诀是：一感二听三让四观看
主动to不见，被动to来见，有些谓语动词主动句中用省to的不定式作宾补，变被动时一定要加上to。
例句：
1、we heard him sing this song in the classroom.
--> he was heard to sing this song by us in the classroom.
2、We often hear her sing this song.
--> She is often heard to sing this song.
3、Let me listen to you sing the song.
-->You will be listened to sing the song by me.
4、The teacher made me go out of the classroom.
--> I was made to go out of the classroom (by the teacher).
5、Tom often makes his sister wash his clothes.
-->Tom’s sister is often made to wash his clothes.

6、We saw him play football on the playground.
--> He was seen to play football on the playground.
嘿嘿。。。就是主动的时候省略to。。被动的时候就要加上to。。。