被动语态

　　1) The blackboard and chalk _______________(正在被电脑和投影机所取代).

　　2) The book _______________(到今年年底就将已出版).来源：

　　3) Computer models _______________(可以用来演示细胞工作的方式).

　　4) When the bill of fare was brought, _______________(我惊呆了，价格大大超出了我的预料).

　　5) _______________(必须立即采取有效措施)to eliminate sandy storms.

　　被动语态

　　1) is being replaced by the computer and the projector

　　(考点：被动语态的现在进行时)

　　2) will have been published by the end of this year

　　(考点：被动语态的将来完成时)

　　3) can be used to demonstrate the way that cells work

　　(考点：1. 被动语态与情态动词联用; 2. 汉语有些没有“被”字等标志词的句子也表示被动, 要译成英语的被动语态)

　　4) I was startled, for the prices were a great deal higher than I had anticipated

　　(考点：同“3”的考点2)

　　5) Effective measures must be taken immediately

　　(考点：汉语的无主句通常翻译成英语的被动语态)

　　情态动词

　　1) The phone is ringing, _______________(但是没人接听。她一定不在家).

　　2) I can’t find my sunglasses. _______________(我可能昨天落在咖啡店里了).

　　3) You screamed in your sleep last night. _______________(你一定梦见什么可怕的东西了).

　　4) It’s a pity. _______________(你本应该邀请她来参加你的毕业典礼的).

　　5) _______________(其实我没必要穿上我最好的套装去参加那次聚会的); most of the guests were wearing jeans and sweaters.

　　情态动词

　　1) but there is no answer. She can’t be at home

　　(考点：情态动词可以表示可能性，can’t 表示“一定不”)

　　2) I may have left them in the coffee shop yesterday

　　(考点：“情态动词can/could, may/might, must + 完成式”用于表示对过去发生的动作的主观判断)

　　3) You must have dreamed of something terrible

　　(考点：同上)

　　4) You should have invited her to your graduation ceremony

　　(考点：“情态动词should/ought to + have done” 用于评论过去应该做而实际并未做的动作，含有批评的意思)

　　5) I needn’t have put on my best suit to go to the party

　　(考点：“情态动词needn’t + have + done”表示对过去发生的动作进行评论，认为“无须发生”，“不必做”)