人教版九年级全册英语 Unit 6 When was it invented？SectionA 1a-1d 导学案（无答案）

Unit 6 When was it invented 导学案
Section A 1a—2d
【学习目标】
句型：When was the car invented
弄清一般过去时态的主动语态与被动语态的差异，并通过练习和运用加以巩固。
【学习重点难点】
句型：When was the car invented
弄清一般过去时态的主动语态与被动语态的差异，并通过练习和运用加以巩固。
【学法指导】
在学习中，懂得人类的科学发明创造了丰富的物质文明，激发创造发明的能力和愿望。并乐于参加学习小组活动，积极合作。
【教学过程】
一、 导入（启发探究 5分钟）
通过课件呈现中国古代的发明:
gun powder/compass/paper making/printing
然后问学生:What are they
Help the students to say :They are four inventions of China.
Get the students to repeat.
叫学生列举一些他们知道的发明,如car,telephone,computer,TV等。
Then show some inventions on the screen to the students:
Telephone, calculator, car, personal computer, TV, light bulb, alarm, clock
Teacher: 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 Students: _____________________.
① The telephone was invented in 1876.
② The computer was invented in ...
二、自学（自主探究 5分钟）
翻译下列年代：
1 nineteen seventy- one____________ 2 eighteen eighty-five__________
3. eighteen seventy-six 4.1927_______________ __
5.1976______________________ 6. 2010____________________
三、交流（合作探究 10分钟）
1. 要求学生翻开课本P41，迅速阅读1a部分的内容。并按要求完成课本上相应的任务: Number the pictures.（2分钟）
2. 检查答案，先要求全班一起给出答案并检查讨论。
3. 要求学生听第一遍录音，并完成课本上1b的听力任务: Listen and match the inventions with the years. Check their answers: 读出序号-读出年份-读出完整的句子（2分钟）
4. 完成教材1c的任务，要求学生模仿1a内容，进行对话练习。并邀请2-3对同学当堂进行演示。（3分钟）
5. 小结训练。要求学生在规定的时间内完成一个小练习。并请若干学生给出自己的答案。有错误的话及时解决纠正。（5分钟）
用所给单词的正确形式填空：
1) When was the telephone invented (invent)
2) The computer can help us do math problems (help).
3) In those day, the woman couldn't afford (afford)a TV because they were really expensive.
4) A friend of mine (I) came to see me last week.
5) I think you need to take (take) a history class.
四、总结（引深探究 15分钟）
1.invent (v.)发明；创造invent 指发明创造出自然界本来不存在的东西，如工具、方法、手段、汽车、电器、合成材料等。
【横向辐射】discover, find, create
1.discover是“发现”的意思，是指发现原来就有而一直没被发现，如发现电、煤、石油等矿藏及新星、星系或科学真理等。
Columbus discovered America in 1492.1492年哥伦布发现了新大陆。
2.find的意思是“寻找”，强调找的结果，并不指发现。
I've tried to find another copy but couldn't find one. 我试图再找一本，但没能弄到。
3.create指有目的地把原材料制成新产品，也指创造出原来不存在的或与众不同的事物。
Man creates himself. 人类创造了自己。
【课堂变式】根据语境提示，用invent, discover，find，create的形式填空，完成句子。
1.When _____ the stream engine（蒸汽机） ___
2.I can’t ____ my bike, I’m looking for it.
3. Scientists are now trying to ___ if this is possible.
4. Do you know who______ the plane？
5. He ____quite a number of wonderful characters in his play.
【解析】I.1.was, invented 2.find 3.discover 4.invented 5. created
五、 单项选择5分钟
（ ）1.The kind of cup is used__________drinking.
A. to B. as C. by D. for
（ ）2.My mother and my sister kept on talking, but my father___silent all the time.
A.got B.kept C.turned D.looked
（ ）3.I think the short story_________by Lu Xun.
A. is writing B. is written C. written D. was written
（ ）4.--Who________the electric light lamp______ —Edison.
A. was; invented B .is; invented
C .was; invented by D. did; invented by
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