Unit3I导学案

1、Unit 3 Inventors and invenPeriod Reading教材分析：本课是一篇记叙文。故事讲的是一个女孩如何通过多次尝试最后成功地把在她母亲家院子里安家的一窝蛇捉住并放归大自然的，她的捕蛇技术申请了发明专利。文章也提到了申请专利的标准。学习目标：1. 知识目标：学习本课中的重点词汇、短语和句型。2. 能力目标：培养学生快速阅读和细节分析的能力。3. 情感目标：了解科学发现与发明创造的区别以及发明产生的过程和专利认定的标准。重点难点：快速阅读能力的培养。 掌握通过文章整体，学习词汇和语法的方法。学习方法：Read the passage quickly and get th

2、e main idea. Consult the dictionary and try to remember new words.Step 1. Warming up (AB级)Discuss these questions with others in your group before reading the text.1. Do you know who is Edison?_2. Do you know how many inventions he made? Can you mention some of them?_3. Did Edison invent electricity

3、? Can electricity be invented? Is electricity an invention or a discovery? Why?_Step 2. Fast reading (AB级)Read the passage quickly and try to answer the questions.1. What was the mother upset about?_2. Why was the writer happy to help her mother?_3. What are the three creative steps that the writer

4、takes to catch the snakes without hurting them?_4. Why did cooling make the snakes less active?_Step 3. Careful reading (C级)1.In order to get rid of the snakes in her mothers courtyard, the writer decided to use the last approachcooling the snakes. She attempted three times. Can you describe her thr

5、ee attempts simply?._._._ 2. Read the passage again and try to divide the passage into three parts. After dividing the passage into three parts, try to find the main idea of each part.Part 1: Paragraph 1_Part 2: Paragraph 2_Part 3: Paragraph_Step 4.ListeningListen to the tape. While listening, pay a

6、ttention to your pronunciation and intonatin. You can read quietly after it.Step 5. Long and difficult sentences (C级)1. Here was a chance for me to distinguish myself by inventing something merciful that would catch snakes but not harm them._2. The first thing I did was to see if there were any prod

7、ucts that might help me, but there only seemed to be powers designed to kill snakes._3. Prepared with some research findings, I decided on three possible approaches: firstly, removing their habitat; secondly, attracting them into a trap using male or female perfume or food; and thirdly cooling them

8、so that they would become sleepy and could be easily caught._4. Betreen the outside and the inside walls of the bowl there is some jelly, which freezes when cooled._5. Nor will you receive a patent untill a search has been made to find out that your product really is different from everybody elses._

9、Step 6. Recite the sentences (C级)1. When I called up my mother in the countryside on the telephone she was very upset.2. Snakes come near the house now and then, and they seem to have made their home here, not far from the walnut tree.3. The first thing I did was to see if there were any products th

10、at might help me, but there only seemed to be powers designed to kill snakes.4. I placed the frozen bowl over the snakes and the ice-cubes on top of the bowl to keep it cool.5. I set about researching the habits of snakes to find the easiest way to trap them.6. They abruptly disappeared into a conve

11、nient hole in the wall.7. The next morning I carried in my hand a small net used for catching fish.8. This was in the expectation that the snakes would bite again.9. I collected the passive snakes and the next day we merrily released them all back into the wild.10. Only after you have had that recog

12、nition can you say that you are truly an inventor.当堂检测.Words and phrases(A级)1.专利证书，专利权_ 2. 显示的差别_3.无锈的；没有污点的_ 4.突然的；意外的_5.便利的；方便的_ 6.抓住；夺_7.标准；尺度_ 8.有效的；确凿的_9.充满活力的_ 10.稳固的；稳定的_11.电话分机；扩大_ 12.能力；胜任_13.给打电话_ 14.偶尔；有时_15.开始；着手_ 16.常规；惯例_17.稍等；紧紧握住_ 18. 开始（做）_19.次序颠倒；发生故障_ 20.设法联系上；通过_. Sentences(B级)1. 我给住在乡下的母亲打电话的时候，她感到很心烦。_2. 我所做的第一件事就是看看有没有现成的产品能帮助我。但是，看来只有一中毒杀蛇的药粉。很明显，我得找一种新的方法了。_3. 于是我就着手研究蛇的习性，一边能找到做容易的方法捉住它们。_4. 蛇不像以前那样活跃了，但是对我来说，它们的行动还是太快了，突然一下子就消失在附近的墙洞里去了。_5. 第二天早晨我的手