主动语态改为被动语态的疑问

问题描述

1. 将下句改为被动语态：

Parents should encourage teenagers to do social work for their community.

应该是：

Teenagers should be encouraged to do social work for their community by their parents.

还是：

Teenagers should be encouraged by their parents to do social work for their community.

哪个正确？

另外，to do social work for their community  在主动语态中应该是宾语补足语吧，那么宾补和by引导的方式状语在被动语态中应该哪个放在前面呢？

2. 将下句改为被动语态：

Can Lucy do her homework tomorrow instead?

应该是：

Can Lucy's homework be done tomorrow instead by Lucy ?

还是：

Can Lucy's homework be done by Lucy tomorrow instead  ?

另外，tomorrow instead 是时间状语吗？应放在by Lucy的后面吗？

求老师解答，谢谢！

老师答疑

陈老师：

1. 将下句改为被动语态：

Parents should encourage teenagers to do social work for their community.

应该是：Teenagers should be encouraged to do social work for their community by their parents.(better)

还是：

Teenagers should be encouraged by their parents to do social work for their community.(good)

哪个正确？

另外，to do social work for their community  在主动语态中应该是宾语补足语吧，那么宾补和by引导的方式状语在被动语态中应该哪个放在前面呢？

2. 将下句改为被动语态：

Can Lucy do her homework tomorrow instead?

应该是：

Can Lucy's homework be done tomorrow instead by Lucy ?

还是：

Can Lucy's homework be done by Lucy tomorrow instead ?(right)

另外，tomorrow instead 是时间状语吗？应放在by Lucy的后面吗？

求老师解答，谢谢！

by +动作执行者，属于方式状语，地点状语，时间状语，主语补足语，其位置排列顺序为

主语补足语----方式状语-----地点状语------时间状语

沅老师：

1. 将下句改为被动语态：

Parents should encourage teenagers to do social work for their community.

下面两句均可：

Teenagers should be encouraged to do social work for their community by their parents.

Teenagers should be encouraged by their parents to do social work for their community.

没错，to do social work for their community 在主动语态中是宾语补足语，宾补和by-短语在被动语态中的以上两个位置均可以。

2. 将下句改为被动语态：

Can Lucy do her homework tomorrow instead?

最好是：

Can Lucy's homework be done by Lucy tomorrow instead?

tomorrow instead 是时间状语，与谓语动词联系不像宾补那样紧密，宜放在by Lucy的后面。