1、英语 1 外研版 module5 优质教案（第 1 课时）The First Period ReadingTeaching goals 教学目标1. Target language 目标语言a. 重点词汇expand, contract, conclusion, method, liquid, solid, iron, mixture, oxygen, electricity, aim, equipment, react, result, steam, substance, boil, float, form, dissolve, rustb. 重点句式It is hard to think
2、of a world without metals. P44It is important to know how they react with different substances, for example, water and oxygen. P44This makes sure there is no air in the water. P452. Ability goals 能力目标Enable the students to describe a scientific experiment.Enable the students to learn some words conc
3、erning scientific experiment.3. Learning ability goals 学能目标Help the students learn about the steps of a simple scientific experiment so that they can describe a similar one.Teaching important points 教学重点Help the students learn how to describe a simple scientific experiment.Teaching difficult points
4、教学难点Help the students understand the two tables of Passage A and Passage B.Teaching methods 教学方法Listening, reading and discussing.Teaching aids 教具准备A computer, a projector and a recorder.Teaching procedures Activity 2, find the best title for the passage; Activity 3, answer some questions about the
5、passage.Task 1: Activity 1 T: Well, if you were an engineer, you would take part in the experiment of making Shen Zhou Flight. What kind of materials would you like to use?S1: Id like to use some materials that are light enough and hard enough, so that the flight can be easily sent up into space, an
6、d doesnt get in trouble.T: How can we find such kind of materials?S2: We can do some experiments. We cant use natural materials only; we need both man-made and natural materials.T: Thats right. Now well read a passage about a scientific experiment. Please turn to page 44. Well go through Passage A.
7、When we are doing a thing, we should do it in an orderly way. Its especially true with a scientific experiment. Now lets see the four words in the table: conclusion, aim, result and method. The four words are about the orders or stages of a scientific experiment. We must know these two words: result
8、 and method. What are the meanings of the other two words?S3: “Aim” should be about what the experiment is for. For “conclusion”, I have no idea.T: Right. “Aim” means purpose or object. For example, he has only one aim in life, that is, to be a millionaire. And for “conclusion”, lets see an example
9、first, when you have worked on a maths problem for a long time, but you still cant work it out. So you may make a conclusion that the problem is wrong. Here, “the problem is wrong” is your conclusion. Do you understand?Ss: Yeah!T: Now who can give us some other examples to show the meaning of “aim”?
10、S4: Many people aim to be a millionaire. But I think to serve people is the highest aim.T: What is the correct order of stages to do an experiment?Ss: It should be aim, method, result and conclusion.T: Thats right. Without aim, we dont know where to go; without method, we dont know how to do things
11、well; without result, well draw a blank or gain nothing; without conclusion, well find what weve done is worth nothing. Task 2: Activity 2Ask the students to scan Passage A and find the best title for the passage.T: Please look at Activity 2. What you should do is to scan Passage A and decide which
12、is the best title for the passage.Give the students some time to do the job and then check the answer.T: Well, whats the best title for the passage?S4: The Reaction of Metals.T: Why?S4: The writer begins the passage by introducing the different uses of different metals. But for the rest part of the
13、passage, including the table, he / she mainly describes several metals reaction with different substances.T: What a good reason it is! Now, lets look at Activity 3.Task 3: Activity 3Ask the students to read and answer the questions below the passage. Give them some time to do the job. After that, ch
14、eck the answers with the whole class. Step Reading (Passage B: P45)In this part, the students will read the passage and then fill in the table below the passage.There are three Tasks in this part. The first one is to ask the students to find the structure of the passage and finish the table. The sec
15、ond one is to deal with Activity 5. The third one is to finish Activity 6.Task 1: Structure of the passageT: Now, well continue to read Passage B. The title of it is A Simple Scientific Experiment. From the passage we can see how the experiment is done. What is the structure of a description of expe
16、riment? Who can come to the blackboard to write down the structure?S: Let me try.A student comes to the blackboard and writes down the structure.A Simple Scientific Experiment: Introduction Aim Apparatus Method Result ConclusionT: OK. We should notice that there are 3 different reactions which are r
17、espectively described with method, result and conclusion. Now, please read the passage and then fill in the table. Let the students do the job, and then check the answers with the whole class.T: Well, what is ordinary water according to the experiment?S6: I think ordinary water here means the water
18、that has not been boiled, and has air in it.T: Right. We also call ordinary water “raw water”. Now whats “Bunsen burner”? We often find it in labs. Now, turn to page 46, and find the picture of Bunsen burner.Task 2: Activity 5T: Now please turn to page 46. Look at Activity 5. Read Passage B again. C
19、omplete the sentences.After the students finish the sentences, ask some of them to read out the complete sentences and check the answers with the whole class.Task 3: Activity 6This part is about vocabulary study. Let the students read after the teacher, and then work in pairs to find the meanings of
20、 the new words.Explanations of some words:React: have effect on (of one substance applied to another)Steam: gas from boiling waterOil: liquid which does not mix with water, obtained from animals, plants or found in rock under-groundBoil: (of water or other liquid) reach the temperature at which chan
21、ge to gas occursScientific: of, for, connected with, used in scienceExperiment: test carried out carefully in order to study what happens and gain new knowledgeFloat: be held up in air, gas or on the surface of liquid; move with liquid or airForm: give shape or form to; make, produceDissolve: (of a
22、liquid) soak into a solid so that the solid itself becomes liquidStep Language PointsAsk the students to translate the following sentences, and get familiar with the sentence structures.Show the following sentences on the screen.1. It is hard to think of a world without metals. 2. It is important to
23、 know how they react with different substances, for example, waterand oxygen. 3. This makes sure there is no air in the water. T: Before we finish this class, lets look at the screen. There are three sentences on it.Can you translate them into Chinese?Let the students translate the sentences into Ch
24、inese.T: OK. In fact, these sentences involve two sentence structures. One is: it is + adj. + to do something. The other is an object clause. Now lets look at more sentences to get familiar with the two sentence structures.Write down the structures on the blackboard and then show the students more s
25、entences on the screen:1. Its hard (difficult) to say which is better.2. Its foolish (silly) to act like that.3. Its easy to learn a foreign language.4. Its impossible to finish the job in one day.5. Its wrong to steal.6. I only came to make sure that everything was all right.7. Father makes sure th
26、at all the lights are off before he goes to bed.8. Make certain that your facts are right.9. We must make certain that she can come.Let the students translate the sentences. If they have any difficulty, give them some help. Step HomeworkT: Today, we have learned some new words and two passages about scientific experiment. After class, please do Exercises 6, 7 and 8 on pages 92&93. These exercises can help us remember the new words and expressions about scientific experiment. OK, thats all for today. See you next time.Ss: See you.
