1、第五课时 Section B(3a Self Check) 重点单词 nearly adv.几乎 重点短语 come up with想出 重点句子 That is why books or websites usually mention more than one inventor when giving information about inventions.那就是书或网站在给出关于发明的信息时,通常会提到多个发明者的原因。 教学难点 让 学生学会用英语短文简要介绍某一项发明 尽可能多地写出你能由 invention 联想到的词汇 。 _invent, inventor, discove
2、r, create, when, who, where, in, by, useful, idea, purpose,come_up_with, be_used_to_do/be_used_for_doing, be_made_of, by_accident, by_mistake._ 环节 1 新课导入 Teacher gives several pictures of some inventions and asks students to write down several sentences to describe them in English. 设计意图: 通过此任务引入本课的教
3、学内容 让学生试着描述一项发明。 环节 2 学习 3a 3b 1 让学生阅读 3a 的内容 , 根据方框中的提示想出一个能够给予自己帮助的发明 , 并请几个学生各自分享所想到的有创意的发明 。 2 小组讨论 , 以下列对话为例 , 为自己想到的发明编写对话 。 Do you have any problems in study? Yes.My teacher speaks so quickly in class that I cant catch her. So, do you have any ideas? Yeah.I want to invent a special pen to wri
4、te down the key words. Sounds great. 3 让学生阅读 3b 的内容 , 就自己的一项新发明写一篇短文进行描述 , 并请几个学生分享自己的描述 。 4 学以致用 。 (写一篇关于纸的发明的短文 ) About two thousand years ago, there was no paper in the world.People used to carve characters on wood, stones or bamboo. A Chinese inventor named Cai Lun tried his best to improve pape
5、r.He taught people to make paper from waste materials like used cloth and fishing nets.In the year around 105, paper with good quality was finally invented.It can be used for writing. After the invention, books became more and more popular all around the world. The invention of paper is very importa
6、nt in the development of human civilization.Cai Lun is a great inventor and we should remember him all the time. 设计意图: 经过 3a中三要点的提示为描述一项发明作好铺垫,从而顺利完成 3b的任务,使学生能就一项发明进行写作。 环节 3 学习 Self Check 1 让学生学习方框中的词汇并试着完成任务 。 2 老师核 对答案 。 让学生齐读 1 中的短文 , 使学生强化词汇在文中的具体用法的学习 。 3 复习本单元的语法点 一般过去时的被动语态的问答 。 并用被动语态改写 2
7、中的句子 。 4 小组合作 , 讨论你所知道的发明 , 并编写句子 。 教师挑选 2 3 组在全班分享 。 5 学以致用 。 (用所给词的适当形式填空 ) (1) Bad luck.Someone _stole_ my cell phone. What did you say? I said my cell phone _was_stolen_(steal) by someone. (2)Three trees _were_used_(use) for _making_(make) the big bed. 设计意图: 通过完成 Self Check中的任务,帮助学生复习和巩固本单元所学的知识。Unit 6 When was it invented? Section B(3a Self Check) Invention: When: Who: Purpose: 请完成本课对应训练!