1、选修八 Unit3 Inventors and inventionsPeriod1 ReadingTeaching goals教学目标1. Target language目标语言a. 重点词汇和短语patent, distinguish, product, power, perfume, cube, abrupt, abruptly, convenient, expectation, monitor, passive, criterion, valid, application, file, rod, call up, now and then, set about, in caseb. 重点
2、句子1. The first thing I did was to see if there were any products that might help me, but there only seemed to be powders designed to kill snakes. 2. Between the outside and the inside walls of the bowl there is some jelly, which freezes when cooled. 3. The criteria are so strict that it is difficult
3、 to get new ideas accepted unless they are truly novel. 4. Nor will you receive a patent until a search has been made to find out that your product really is different from everybody elses. 2. Ability goals能力目标Enable the students to describe the problem of the snakes and what has been done by the wr
4、iter to solve the problem. Make them realize it takes steps to catch the snakes and its not easy to get a patent.3. Learning ability goals 学能目标Help the students to learn how to retell the story and how to meet the requirements of getting a patent. Teaching important points 教学重点 How to describe the p
5、roblem of the snakes and what has been done by the writer to solve the problem.Teaching difficult points 教学难点Learn how to meet the requirements of getting a patent. Teaching methods 教学方法Task-based activities. Teaching aids 教具准备A recorder, a projector and some slides. Teaching procedures & ways教学过程与方
6、式Step Revision 1. Greetings2. Check the answers to the multiple choices in USING WORDS AND EXPRESSIONS. 3. Ask some students to show the answers to the preview questions. T: Last period, you were asked to preview the text and answer the two questions. Did you get ready?Sample answers:1. The problem
7、talked about in the text is how to catch snakes in the courtyard.2. The writer solved the problem in different steps. For example placing the frozen bowl and the ice-cubes on top of the bowl to keep it cool, freezing the bowl and ice-cubes again in the evening as the temperature was starting to cool
8、 and using a net used for catching fish.Step Pre-reading T: Problems can arise anywhere at any time. Now here is a problem of snakes. Look at the title of the reading passage. What can you guess about the content of the passage from the title? To answer the question you should try to predict the con
9、tent of the reading material by reading the title and looking at the pictures in the text. The title of the text is THE PROBLEM OF THE SNAKES. Next, Id like you to discuss this question with your partner. Then Ill ask some students to report your work. Are you clear?After a few minutesT: Now whod li
10、ke to answer the question? Volunteer!S1: Let me try. Someone was once frightened at the sight of snakes, the brave and clever writer helped solve the problem of the snakes, as we can see from the picture that she finally caught them with a net. S2: Judging from the title, I think the passage is main
11、ly about the serious problem of the snakes around the house and how the girl made efforts to catch the snakes in the end. S3: The title tells us that the content of the text will be about different ways of catching snakes tried by the girl and her success in doing it.T: Very good! Now, lets go on wi
12、th Exercise 1 in the pre-reading. Inventing is a scientific activity. Every inventor must go through certain stages before they can have their inventions approved. Look at the list of the stages and work out a suitable order.S: The suitable order of the steps every inventor must go through before th
13、ey can have their inventions approved: 1. Finding a problem2. Doing research 3. Thinking of a creative solution 4. Testing the solution5. Applying for a patent 6. Deciding on the inventionT: Well done! Youve worked the order out. Now read the text and check the order you wrote above to see whether i
14、t follows the correct stages in producing an invention. First, you should skim the passage by reading the introduction, the topic of each paragraph and the conclusion. After a few minutes.T: How about your arrangement of the stages? Are they all right?S: I find the above steps are correctly arranged
15、 according to the text. At first the writer found the problem of the snakes, and then she made a study of the methods of catching them and thought of a creative and practical way to solve the problem. She then tested and improved the method before applying for a patent and whether there will be a de
16、cision on her invention remains to be seen. T: Quite right. Since you have got the general idea of the text, lets go through the text again.Step While-readingGet the students to comprehend the passage carefully and accurately, and then divide the text into several parts and work out the main idea fo
17、r each paragraph. T: Now, please read the passage carefully, divide the whole passage into several parts and find out the main idea of each part.Part I (Para.1): the discovery of the problem of the snakesPart II (Paras.2-3): the research on the approaches to solve the problemPart III (Paras.4-6): th
18、e attempts to catch the snakesPart IV (Paras.7-8): the requirements of getting a patentT: Now, please go through the whole text again and Id like you to analyze the text in details. Discuss these questions on the slides. Show the following. 1. What are the writing techniques of this text?2. Whats th
19、e main idea of the text?3. What should we learn from this text?4. Whats the writing purpose of the writer?Sample answers:1. In this text the writer puts forward the problem of the snakes, makes research and analyzes the problem, lists the steps of solving the problem according to the arrangement of
20、ideas, and finally illustrates what is needed for getting a patent. By listing the creative steps she takes to catch the snakes without hurting them, the writer has efficiently recorded and narrated to the readers the beginning, the development and the final result of the incident clearly.2. The tex
21、t narrates the problem of the snakes and presents the procedures of catching them and applying for a patent, from which we have got a better understanding of how to do scientific researches and how to apply for a patent. After learning, we know that it usually costs some time and continuous efforts
22、in order to solve some practical problems in a scientific way.3. We can learn from the text the way of doing scientific researches and how to apply for a patent. We can also learn that it takes an inventor great determination and persistence to achieve his or her ambition in life. 4. The writer want
23、s to inform us of the scientific methods to solve present problems so that we students can not only broaden the horizons but become more skilled in discovering and considering carefully the problems in daily life. We are also encouraged by the writer to be creative and hardworking as well as thinkin
24、g independently. Help the students deal with the difficult language points in the text.T: Now, everyone, I wonder if you have any difficulties in understanding the text.S1: I have one question. I cant understand the structure of the sentence in Para. 2 on page 20: The first thing I did was to see if
25、 there were any products that might help me, but there only seemed to be powders designed to kill snakes. Would you please explain it and put it into Chinese for us?T: Sure. This sentence tells us the first step of the writers research on the problem of the snakes. The words the first thing is modif
26、ied by an attributive clauses I tried to do and the words powders is modified by an attributive past participle phrase designed to kill snakes. The clause if there were products that might help me serves as an objective clause. 全句汉语意思：我设法做的第一件事是看看是否有能帮我忙的产品，但是好像只有一些用来捕杀蛇的粉末。S2: I dont know much abou
27、t the last but one sentence of the third paragraph on page 20: Between the outside and the inside walls of the bowl there is some jelly, which freezes hard when cooled. Whats the sentence structure like? Why is “when cooled” used? What does it mean? Please explain it in details.T: As a whole, this s
28、entence is an inverted sentence with the prepositional phrase Between the outside and inside walls of the bowl put in the front, which tells us what the writer used in order to cool the snakes. which freezes hard when cooled is a non-restrictive attributive clause modifying the sentence in front of
29、it. When cooled is an elliptic form of when it is cooled.全句意思是：在碗内外侧有一些果子冻，冷却时它们会冻得很结实。S3: I find it difficult to understand the first sentence of the last paragraph: Nor will you receive a patent until a search has been made to find out that your product really is different from everybody elses. Ca
30、n you explain it? Thank you.T: Well, this sentence tells us another requirement of getting a patent. This is an inverted sentence of adverbial clause, with the negative word Nor at the beginning of the sentence. that your product really is different from everybody elses is an objective clause. In th
31、e normal order, this sentence can be paraphrased like this: You will not receive a patent until a search has been made to find out that your product really is different from everybody elses. 全句意为：直到做了一次调查后发现你的产品确实与众不同，这时你才会获得专利。 Step Comprehending T: Now, please look at Exercise 1 on page 21. Listen
32、 to the recording of the passage to get the answers to the questions. While listening, pay more attention to the correct pronunciation and tone. Then read the text by yourselves to get the answers to the next questions (slide). You can work in groups. Step HomeworkAsk the students to do the following. 1. Go over the whole passage.2. Recite the key sentences in the text.3. Prepare for Learning about Language and USING STRUCTURES in the workbook.