人教版新课标高一英语必修二unit1 Cultural_relics Period4 Language points课件.ppt

Unit 1 Cultural relics Period 4 Language points Aims: 1.Ability aims: 1).To learn some useful words and expressions 2).To learn some useful structures 2. Knowledge aims: 1).Grasp the usage of such important expressions : be of +名词（词组）; state, country, nation; gift; serve ; consider; wonder; be at war; light; remain 2).Master the sentence pattern: could never have done could not have done could have done should/ought to have done shouldn’t/ought not to have done have sth. done There’s no doubt that… The design for the room was of the fancy style popular in thise days. 屋子的设计是当时流行的极富艺术表现力的建筑式样。 2. Frederick William I, the King of Prussia, could never have imagined that his greatest gift to the Russian people would have such an amazing history. 2. +宾语从句 （1）在否定句和疑问句中，doubt + that引导的宾语从句 I don’t doubt that he can finish the task on time. 我相信他能按时完成任务。 Do you doubt that she will succeed? 你怀疑她会成功吗？ （2）在肯定句中，doubt + whether 或 if 引导的宾语从句。 I doubt whether they can swim across the river. 我怀疑他们能否游过河去。 He doubts if she will keep her word. 他不敢肯定她是否会遵守诺言。 Homework 1. Review what you learnt in this period. 2. Finish exercise 2 and 3 on page 42. * be of +名词（词组）: 表主语的某种形式或特征 I am pleased to have been of help to you. 我很高兴对你有帮助。 All the students in the class are of the same age. 这个班上学生年龄都一样。 类似的用法还有： of great difference=very different of great importance= very important of no use=useless of little value= not very valuable 1）… could never have imagined that… 绝不可能想到…… ※ could never have done 决不可能做过某事 could not have done 不可能做过某事 都表示对过去发生的事情的可能性的否定推测 He couldn’t have gone abroad , as I saw him just now. ※?could have done “可能做过某事”, “本来可以做到，但实际并没有做到” He could have passed the exam. 他本来可以通过考试。 We could have lent him the money but he didn’t tell us he needed the money . 我们本来可以把钱借给他，但他没有告诉我们他需要钱。 could have done “本能够…”(用于对过去情况的推测,其否定形式 “can’t / couldn’t have done” ,意为 “(过去)不可能做过某事. 1)教室不可能是李平打扫的,因为他今天没来上学.