初中英语教材解读人教九年级上册Unit6 When was it invented熊月朝

1、Unit 6 When was it invented ？Section A 1a-2d【教学目标】：1学习关于发明的单词。 2能听懂并能简单地谈论发明史。3通过开展小组学习活动，能正确地使用一般过去时的被动语态，了解中美发明史的差异，更好地理解人类发明文化中的瑰宝。【教学重、难点】【学习重点】重点单词及短语：style，project，pleasure，daily，have a point，website，pioneer【学习难点】通过交流表达和听力训练，引入一般过去时的被动语态“was/weredone”。【学法指导】辨析invent/discover/find/find out inve

2、nt意为“发明，创造”，主要指“通过想象，研究，劳动等创造出前所未有的东西”，尤指“科技上的创造发明”。discover指发现或偶然发现本身就存在但未被认识的事物。find强调找的结果，即“找到”，通常指偶然发现。find out指经过观察，调查，把某事物查出来，意为“搞清楚，弄明白”。情景导入生成问题T：There are many useful things in the world.They help us a lot in life.(Show some pictures on the screen)Question：When were they invented?Students _

3、(1)The telephone was invented in 1876. (2)The computer was invented in自学互研生成能力Task 1Lets read new words and the phrases.1I can read.(我会读)预习下列单词及短语，争取自己能正确拼读。拼读成功后再在课文中把单词及短语标记出来。style，project，pleasure，daily，have a point，website，pioneer2I can write.(我会写) 翻译下列短语：(1)run on electricity 用电驱动的(2)be used f

4、or 被用于 (3)have a point 有道理3I can summarize.(我会总结)在上一单元我们已经学习了一般现在时的被动语态，你能总结一般过去时的被动语态吗？一般过去时的被动语态的结构：was/were及物动词的过去分词(by)其他；其否定形式是在was/were后加not；疑问形式是把was/were放到句首。4I can translate.(我会译)(1)他们是被用来做什么的？ What are they used for?(2)这些鞋子带有特殊的鞋跟。 The shoes are with special heels.(3)拉链是由Whitcomb Judson发明的

5、。 The zipper was invented by Whitcomb Judson.5I can make conversations.(我会编对话)你能结合课文内容编写对话，来介绍物品发明的时间、发明者及用途等吗？【教学过程】Free talk to lead in the topic：There are many useful things in the world.They help us a lot in life.(Show some pictures on the screen.)When were they invented?xk|b|1Task 1 Preview the

6、 words on P4142，read the words by phonetic symbols and mark the new words in the text.Finally finish the tasks in 1a.Task 21Listen to the tape on P41 and finish the listening tasks in 1b.Then students listen to the tape again and finish the tasks in the text.The telephoneIt was 1.invented in 1876.Th

7、e 2.carsThey were invented in 1885.The TVIt was invented around 3.1927. They were 4.expensive in those days.The personal computersThey were invented in 5.1971.2.Listen to the tape on P42，and finish the listening tasks in 2a and 2b.Then listen again and repeat.Task 3 Read 1a，1c，2c and 2d and finish t

8、he tasks in 1a，1c，2c，2d.Students imitate listening and have a dialogue practice with the sentences：When the things in the pictures in 1b were invented？I think3.I can summarize.(我会总结)辨析be used for，be used to do sth.，used to do sth.，be/get used to sth./doing sth.，be used by及use sth.to do sth.(1)be use

9、d for意为“被用于”。介词for表示用途，后接名词、代词或v.ing。(2)be used to do sth.意为“被用来做”，强调动作，其中used是动词use的过去分词。(3)used to do sth.意为“过去常常做某事”。(4)be/get used to sth./doing sth.意为“习惯于某事或做某事”，其中to为介词。新 课 标 第 一 网(5)be used by意为“被使用”，介词by后面接动作的执行者。(6)use sth.to do sth.意为“用做”，用于主动语态。First the students read the words and phrase

10、s in groups，then read together and sum up the usage of the words in groups，mark the difficult points(they can ask the teacher for help)First the students discuss and check the answers in Task 3，then discuss and set scenes to perform the dialogues.At last write show contents on the blackboard.1I can

11、read.Read together，pay attention to the pronunciation of “project”；Consolidate the word learning by word game.2I can write.Students translate the phrases into Chinese by answering quickly；Read together；Spot test：Consolidate the usage of phrases by making sentences.3I can summarize.Students sum up th

12、e usage of simple past tense passive voice and explain.1I can translate.Ask students to translate the key sentences in Task 3；Read together.2I can make conversations.Students make dialogues according the task；Set scenes to perform the dialogues；Spot test：Interview in class and design exercises according to the interview.3I can summarize.Students sum up the usage of “be used for”；Spot test：Consolidate it by exercises and check the answers by answering quickly and explain.当堂演练达成目标(B)1.Columbus_America in 1492.Ain