高级中学高中英语(人教版)必修二学案：Unit 3 Computers12
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必修2 Unit3 Computers
班级 姓名 小组 号
【学习目标】
1. 背诵默写考纲上Unit3的重点单词和重点短语的意思。
2. 通过小组讨论结合语境，感知，掌握现在完成时的被动语态。
3. 通过阅读能理解文章的主旨大意，读取关键信息，能基本总结运用一些相关词汇等的拓展用法。
【重点难点】
1.重点： 熟练记忆本单元词汇及相关短语。
2.难点：能运用句子结构写出正确的句子乃至文章。
【学情分析】
学生通过自主学习和小组讨论能够总结出本单元的重点词汇和短语的应用，可能在运用上存在语法错误。
【导学流程】
自主学习内容
一 回顾旧知
U3单词和词组及课文语句背诵默写
二 基础知识感知：
Ⅰ.教材语法感知
教材原句
①Over time I have been changed quite a lot.
②First as a PC (personal computer) and then as a laptop, I have been used in offices and
homes since the 1970s.
③Over time my memory has developed so much that, like an elephant, I never forget anything I 肯定式 主语＋have/has been done ...
否定式 主语＋have/has not been done ...
一般疑问式 Have/Has＋主语＋been done ...？
特殊疑问式 疑问词＋have/has＋主语＋been done ...？ have been told!
④Since the 1970s many new applications have been found for me.
⑤I have also been put into robots and used to make mobile phones as well as help with
medical operations.
⑥I have even been put into space rockets and sent to explore the Moon and Mars.
三、探究问题
(1)以上例句中的时态和语态是 。
(2)结构为 。
1．(2017·北京高考)Already this year, 115 measles cases ______________________ (report)
in the USA, compared with 189 for all of last year.
2．(2017·全国卷Ⅱ)Since 1958, they____________________________ (recognise) as the
national theatre of Isreal.
3．(2016·上海高考)In recent years, stress
________________________ (regard) as a cause of a whole range of medical problems,
from high blood pressure to mental illness.
4．(2015·天津高考改编)Despite the previous rounds of talks, no agreement
_______________________ (reach) so far by the two sides.
5．(2015·重庆高考改编)In my hometown, there is always a harvest supper for the farmers
after all the wheat ________________ (cut)．
四、基础知识拓展与迁移：
现在完成时的被动语态
一、结构
请及时记录自主学习过程中的疑难：
小组讨论问题预设:
(1)单句语法填空
①Since then many of her friends ____________________ (invite) to her birthday party.
②The novels written by Mo Yan sell well and ____________________ (sell) out already.
③Although he has lived with us for years, he ________________ (not leave) us much impression.
④If the paper ____________________ (finish), please hand it in.
⑤—The windows of the house are dirty.
—I know.They ________________________ (clean) for weeks. 提问展示问题预设:
(2)用现在完成时的被动语态改写句子
①Jack's boss has always praised him for his devotion to work.
→Jack ________________________ by his boss for his devotion to work.
②They have found a good place to build a temple in the village.
→A good place __________________ to build a temple in the village.
③We haven't yet decided how to solve that difficult technological problem.
→How to solve that difficult technological problem ____________________________ yet.
④Jane has referred to the dictionary.
→The dictionary ________________________ by Jane.
⑤He has sent me a birthday present.
→A birthday present ____________________________ me by him.
课堂训练问题预设：
His boss has already （punish）him.
→He has already （punish）by his boss．
整理内化：
1、 课堂小结
2、 本节课学习内容中的问题和疑难
