第七单元应该允许青少年自我检查课件(人民教育新目标版)

含有情态动词的被动语态的结构
含有情态动词的被动语态表示具有一定感情色彩的被动性动作。其基本句式如下：
肯定句式：
    主语 + 情态动词 + be + 过去分词 + 其他.
  A dictionary should be bought at once.
  The computer must be repaired now.
否定句式：
主语 + 情态动词 + not + be + 过去分词 + 其他.
  Any books mustn’t be taken away.
一般疑问句式：
情态动词 + 主语 + be + 过去分词 + 其他?
  Can the housework be done by yourself in an hour?  
take photos
This is a good place for tourists to take photos.
2. do part-time work
It is common for university students to do part-time work to help pay for their studies.
3. get ears pierced
I would like to get my ears pierced when I am twenty-one years old.