The flowers need watering or they will die.
=The flowers need to be watered or they will die.
这些花需要浇水,否则它们会死。
4.某些作表语的形容词后,常见的形容词有easy, hard, difficult, heavy, light, strange, impossible, comfortable, dangerous等,用动词不定式主动形式表示被动。
This article is difficult to read. I need someone to explain it to me.
这篇文章很难读懂,我需要一个人给我解释一下。
Don't lose heart. English is easy to learn.
不要气馁。英语容易学。
[名师点津] 若不定式为不及物动词(短语)时,需加上相应的介词。
Jimmy is easy to get along with.
吉米很容易相处。
5.不定式作定语修饰名词,与前面的名词有动宾关系,且句中有不定式的逻辑主语时,用动词不定式主动形式表示被动。
I have a lot of homework to do this afternoon.
今天下午我有很多的家庭作业要做。
Please give me something to eat.
请给我些东西吃。
6.某些动词不定式如to blame, to let等,作表语时用主动表被动。
The boy was to blame for what he had done.
这个男孩为他的所作所为受到了批评(责备)。
This house is to let.
此房出租。
[即时演练3]
(1)单句语法填空
①The passage is difficult to_understand (understand).②Who is to_blame (blame) for the accident?
③Your car looks too dirty and it needs to_be_washed/washing (wash).
④The box is too heavy to_carry (carry).
(2)翻译句子
①这个沙发坐起来很舒服。
The_sofa_is_comfortable_to_sit_in.
②这个类型的书卖得很好。
This_kind_of_books_sells_well.