1、系动词无被动语态：以主动形式表示被动之意
常见的系动词有：
① be动词
② ……起来（7个）：look/seem/appear,feel(感觉,摸起来),sound,smell,taste
e.g.She seems/appears happy.It smells terrible.
③ (逐渐)变得/变成：become,grow,get,turn,come,go
e.g.His wish has come true.
People often went hungry in the old days.
The tree is growing tall.
④ 保持：keep,stay
e.g.We must keep quiet in the reading room.
2、happen,take place,break out,belong to ,cost,take
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024