英語外研版必修1 Module5《A Lesson in a Lab》教案 5th period

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111 The Fifth Period The General Idea of This Period In this period, we’re going to learn Pronunciation, Everyday English, Function and Cultural corner. Teaching Aims Learn and master the following: (1)Pronunciation in the general question sentence and interrogative sentence. (2)Words and expressions of sequence. Teaching Important Points 1. Everyday English: Where do we go from here? Keep the noise down. You’ve got it! Go ahead! It’s your turn. 2. A reading passage: Cultural Corner Teaching Methods  individual work, pair work Teaching Aids 1. a tape recorder 2. a computer Teaching Procedures Step 1 Revision 　Check the homework exercises. 1. Show the words and phrases that come before the degrees of comparison. 2. Check the answers on P91. Step 2 Listening 　 Learn the pronunciation. Pay attention to the intonations. Mark the tones. Ask the Ss to summarize the basic rules for the sentences. Read after the speaker in the correct tone. Additional sentences for them to read.  (1)Where did you go last month? (2)Who’s the woman at the door? (3)Is the experiment successful? (4)Do you really want to have a go? Step 3 Everyday English 　 Get the Ss to guess the meaning of each sentence and then give the right answer. (1)a　(2)b　(3)a　(4)b　(5)a Step 4 Pair work 　 Make a short dialogue, using the expressions you have just learned.  S: If I want others to talk quietly, what should I say? S: Keep the noise down. S: If you don’t know what to do, you may say... S: Where do I go from here?  T: If you hear someone say, “Bag it,” what does he really mean? S: Put it in the bag. T: No. It isn’t. S: Keep it secret. T: No. It means “Forget about it”. You see, English is great fun. Step 5 Function 　 Learn to express the sequence. T: First read the short passage. Then judge when you use them. S: When we state an event, we use First..., Then..., Next...,After that...,Lastly.... T: Think of a situation where you use the expressions. Tell the story to your deskmate. Step 6 Culture corner 　 T: What are you interested in? S: Physics. T: Why are you enjoying learning physics? S: I want to learn how things work. T: Do you hate to be told to do this or that? S: I am excited if I can choose what I want. T: Now read the passage on P49. It will help you in learning about the science teaching in a school in Canada.  Ss read the passage eagerly. T: Why has Mark become more interested in science? S: Because the science teachers at his new school are excellent. S: Because they have good labs with the latest equipment. S: Because his teacher often takes them to some interesting lectures by the famous scientists. S: It is much easier for him to understand his science lessons. T: Very good. Does our school have such good facilities? Ss: No. Step 7 Discussion 　 T: What can you suggest to the school? S: Ask more good teachers to come to teach in our school. S: Buy more advanced equipment. S: Ask some scientists to give us lectures. S: Visit some museums. Step 8 Further reading 　 Read the passage to pick out the useful expressions. (1)used to 過去常常  (2)change schools 轉學 (3)the latest equipment 最新的設備  (4)four times a term 每學期四次 (5)make a discovery 作出發(fā)現(xiàn)  (6)many first-class scientists 許多一流的科學家 (7)win the Nobel Prize 獲得諾貝爾獎  (8)be proud of 為……而自豪  (9)become more and more interested in 對……變得越來越感興趣 (10)be supposed to have good Physics Departments 應有好的物理系 Step 9 Writing 　 Read the passage again. Suppose you are the boy’s father. Write about your son’s new school and his school lessons. You may begin like this: Mark’s feeling about science has completely changed. It is all because of the new school he is attending.  Step 10 Summary 　 Ask the Ss to turn to P50.Look at the Module File. Say in this module you have learnt: ... Ask them to learn to use the words and expressions. Step 11 The design of the writing on the Blackboard Module 5　A Lesson in a Lab The Fifth Period Discussion: What can you suggest to the school? (1)used to 過去常 (2)change schools 轉學 (3)the latest equipment 最新的設備 (4)four times a term 每學期四次 (5)make a discovery 作出發(fā)現(xiàn) (6)many first-class scientists 許多一流的科學家 (7)win the Nobel Prize 獲得諾貝爾獎 (8)be proud of 為……而自豪  (9)become more and more interested in 對……變得越來越感興趣 (10)be supposed to have good Physics Departments 應具有好物理系 Step 12 Activity and Inquiry 　Task: Activity 3  Write about your experiment using these headings:  Aim Equipment Method Result Conclusion  Steps Students’ Acting Teacher’s Organizing 1 Let the students know what to do. Read the intructions to make sure what they should do 2 Read Text B again. Have the students read Text B 3 Write about the experiment using the headings. Ask the students to write about the experiment using the headings. 4 Read out their experiment notes two or three pairs. Get some students to read out their experiment notes. 　 Detailed Explanations to the Exercises: Grammar: 1.1c　2f　3e　4b　5a　6g　7d 2.1 eleven times larger 2 five times further 3 twenty times bigger 4 half as big as 5 as big as Sample answers: Saturn is ten times larger than Earth. Saturn is about twice as far from the sun as Jupiter. Jupiter is eleven times bigger than Earth. Earth is twice as big as Mars. Jupiter has nearly as many moons as Saturn. 3.1 healthier, longer　2 more, less  3 warmer and warmer　4 bigger and bigger　5 more, more 4.1 a bit 2 a lot　 3 rather　 4 a little Vocabulary 5. Students’own answers. 6.1 Gas: steam　oxygen　air 2 Solid: glass　iron　metal　salt　steel  3 Liquid: oil　water 7.boil water　Bunsen burner　cotton wool　Nobel Prize　scientific experiment　test tube 8.1 method　2 aim　3 apparatus　4 Gravity　5 electricity　6 conclusion, results 7 balance　8 heat　9 expands　10 boil 9.1b　2b　3c　4b 10.Summary 3　從倒數(shù)第三、四段可知是一個叫Paul的學生誤拿了丙烯酰胺試劑,燒出嗆人的味道。 11.1 Baking soda and hydrochloric acid.  2 Salt. 3 By making the mixture hotter. 4 He used the wrong liquid.  5 Because there was no label on the bottle.從倒數(shù)第四段右欄一、二兩行可看出。 6 It formed a thick cloud of white gas. 由倒數(shù)第三段最后一句可知。 7 Because the liquid was acrylamide and the gas was poisonous.從倒數(shù)第二段最后一句可知。 8 Never to leave a bottle without a label in the chemistry lab. 從倒數(shù)第四段可知。 12 Students’ own answers. 13&14 The aim is to write a secret message. 1b squeeze a lemon and put the juice into a container 2f dip your pen into the juice 3a write your message on a piece of paper 4g blow on the paper to dry the lemon juice 5e light a candle 6c heat the paper in the candle flame 7d the message appears when the juice reacts with oxygen and produces brown oxide 111