语态有两种：主动语态和被动语态
主语是动作的发出者为主动语态；主语是动作的接受者为被动语态。
1)若宾语补足语是不带to 的不定式，变为被动语态时，该不定式前要加"to"。此类动词为感官动词。
feel, hear, help, listen to, look at, make, observe, see, notice, watch
The teacher made me go onMqvbBhcVut of //www.58yuanyou.comthe classroom。
--> I was made to go out of the classroom (by the teacher)。
We saw him play football on the playground。
--> He was seen to pwww.58yuanyou.comlay football on the playground。
2)情态动词+ be +过去分词，构成被动语态。
Coal can be used to produce electricity for//www.58yuanyou.com agriculture and industry。
这是我们从零开始学英语的第246期：英语语法的学习课程。以后还会有陆续的课程，希望大家跟上节奏哦。
加微信客服小西www.58yuanyou.com英语：kate19920911 邀请进入即可，英语学习动起来吧！
