Unit6WhenwasitinventedSectionA1a-1c

1、课题Unit6 When was it invented? (SectionA1a-1c)课型听说课主备审核授课时间序号41班级姓名组名/层次家长签字学习目标（含重、难点）1.能掌握以下句型： When was the telephone invented?-I think it was invented in 1876. What are they used for? They are used for seeing at night.2.能谈论物品被发明的时间、发明者。学习过程:【课前练习】写出下列词的过去式与过去分词1. be2.invent3.drink4.use5. invent6.

2、 make7.build_ 8.stop _【自主学习】I think the TV was invented before the car.（1） the TV was invented before the car是宾语从句，主句是 I think。中间省略了引导词 that.（2） before在本句中用作介词，意为“在（时间）之前”。【拓展】1.before用作介词时，还能够指位置上"在 前面”。例如：He sat just before me.他就坐在我面前。before还能够用作连词， 意为“在 以前"，引导时间状语从句。例如：I must finish thi

3、s letterbefore I go home .我必须在回家前写完这封信。before还能够用作副词（与完成时态或never连用），意为“以前，从前“。例如：I have never met him before.以前我从来没有见过他。（3） invent , find , find out , discover 的用法辨析invent意为“发明”，指通过劳动使用聪明才智“发明/创造”出以前从未存有过的新事物。Who invented the telephone ? 是谁发明电话的？find意为“找到、发现”，指找到或发现自己所需要的东西或丢失的东西，着重指找到的结果。We've

4、found oil under the South Sea .我们已在南海发现了石油。discover意为“发现”，表示“偶然”或“经过努力”发现客观存有的事物、真理或错误, 即指发现原来客观存有但不为人所知的事物，也可表示发现已为人所知的事物的新的性质或用 途。Columbus discovered America in1492 .哥伦布 1492 年发现了美洲。find out指经过研究或询问查明某事或真相。I've found you out at last.我终于把你揭露了。小试身手1. Edison the electric lamp .2. I lost my neckla

5、ce last night . I haven ' t it.3. Who America first ?4. Can you what time the train leaves ?【语法精讲】一般过去时的被动语态的构成（以动词 do为例）启7E句主语 +was/were+done+ 其他The bank was robbed lastnight.昨晚那家银行被抢劫 了。否定句主语 +was/were+not+done+ 其他The work wasn 't done by them.他们没有做那项工作一般疑问句Was/Were+ 主语 + +done+ 其他?-Were t

6、he trees planted bythem?树是他们栽的吗？- Yes,they were./No,theyweren't.是的。、不是特殊疑问句特殊疑问词+was/were+主语+done+其他？When was the telephoneinvented?电话实在什么时候发明的？【当堂反馈】 一、单项选择()1. -Look at the sign on the right._ Oh, smoking here.A. doesn't allow B. isn't allowedC.didn't allowD. wasn't allowed()2.-What do you the book?-I think it 's boring.A.think of B. think aboutC.think off D.think( )3.The People's Republic of China was founded October 1.1949.A. at B. on C.on D. for()4.I like the girl big eyes. She is so be