初中Section B教案设计

这是一份初中Section B教案设计，共2页。
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，discover，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学内容——让学生试着描述一项发明。环节2　学习3a－3b1．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 can't catch her.—So，do you have any ideas?—Yeah.I want to invent a special pen to write 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 paper.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 important 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 Check1．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！