作业帮请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 06:01:35
请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法
请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法
请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法
1.主动语态中,hear只能接不带to的不定式或动名词作宾语即：
hear sb do sth:I heard her sing that song.我听见过她唱那首歌.
hear sb doing sth ：I heard her singing that song.我听见她在唱那首歌.
2.但是,在被动语态中,又要将不定式前加上to,就以上面两句为例：
She was heard to sing that song.她被人听到过唱那首歌.
She was heard singing that song.她正在唱那首歌时被人听到了.
所以be heard do 是不存在的.
请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法
be heard to do sth 还是 be heard doing sth?
请问be free to do
hear sb. do sth 和 sb.be heard to do sth是固定用法吗?
be heard to do be be heard to be doing be heard doing be heard to doing我知道前两个是对的,后两个存在吗?若存在四个进行比较,有何区别be heard to dobe heard to be doing be heard doing be heard to doing如果不存在，前两
请问be meant to do ,mean to do的区别
请问be to do.be about to do.be going to do.will do用法的区别.
be sure to do
be surprised to do
be supposed to do
be surprised to do
be said to do
be trying to do
be important to do
be strength to do
be trying to do
be anxious to do
be moved to do