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111 Module 5　A Lesson in a Lab Ⅰ.The General Idea of This Module  This module mainly introduces scientific knowledge and the operation and report of basic experiments to students. Questions can often lead to inquiry and phenomenon usually makes people think deeply. Thus, students can voluntarily practice and seek the truth on their own. In this module, we are going to learn some commonly used vocabulary and sentence patterns about scientific experiments. In terms of grammar, we’re going to learn the expressing ways of Degrees of Comparison. Besides, students should also learn to use the forms of modifier of Degrees of Comparison. In pronunciation, students are asked to learn the intonation of general questions and special questions. At the same time, after learning this module, students are required to improve their abilities of listening, speaking, reading and writing as well as some strategies of learning. INTRODUCTION Some vocabulary on science and technology,　experiments are enumerated(列舉) in this section.　Three activities have been designed. 　Students ought to get familiar with the meanings of the useful words and expressions so that they can get ready for the study activities. VOCABULARY AND SPEAKING This part introduces vocabulary of numerals.　Besides,　five activities have been designed here for the students to distinguish and calculate the numbers and percentage. GRAMMAR 1 In this part,　we will learn degrees of comparison of the adjectives.　It mainly deals with the expressing ways of multiple. READING AND VOCABULARY This section leads to some words and useful expressions concerning the topic of this module.　It also introduces oxide reaction of metals.　The exercises designed according to the reading text enable the students to learn to use the relevant vocabulary by doing the exercises. VOCABULARY This section supplies vocabulary on experimental apparatus and gives us the reading method of fractions.　It also supplies us some relevant activities. LISTENING AND WRITING The listening material is a dialogue of teachers and students who are doing an experiment.　It gives us the activity on relevant experiment as well. GRAMMAR 2 This section mainly introduces three kinds of usage of degrees of comparison of the adjectives. PRONUNCIATION In this part,　the students are required to master the intonation of general questions and special questions. EVERYDAY ENGLISH In this part,　the students shall learn several useful expressions of daily English.　That is:　“Where do we go from here?”　“Keep the noise down.”　“You’ve got it.”　“It’s your turn.”　“Go ahead!” FUNCTION In writing,　the students are asked to grasp the use of first,　next,　after that,　lastly and so on in a paragraph.　They are also required to learn the usage of comma. CULTURAL CORNER The students must learn the teaching conditions of senior high school education of Canada by reading this passage. TASK It requires students to work in pairs.　Furthermore,　the students are asked to write an experimental report by recalling the experiments carried out in class and going over the content of reading. MODULE FILE This section summarizes the words and expressions,　grammar,　pronunciation and everyday Egnlish learnt in this module. Ⅱ.Three－Dimensional Goals  1.Knowledge and skills  (1)Be able to master the key vocabulary and read the text fluently.　Get to know something about science and technology,　experimental reports.  (2)The students are required to understand and master the usage of tractions and degrees of comparison of adverbs.  2.Process and methods  (1)Learn independently,　under the teacher’s guidance.　Try to get to know knowledge concerning experiments on science and technology.  (2)Inquiry and activity.　Students are required to understand its importance of scientific knowledge.　The students will be aroused the enthusiasm for observing and analyzing problems.  3.Emotion and values  The materials in this part can help students change their attitude towards study and arouse their interest of learning so that they can form their own goals of study. Ⅲ.Teaching Important Points  Students should get to know some scientific knowledge and draw a conclusion by doing some experiments.　Master relevant vocabulary and phrases and improve the students’ abilities of listening,　speaking,　reading and writing. Ⅳ.Teaching Difficult Point  How to improve the students’ ability of writing effectively. Ⅴ.Preparation of Teaching Aids  a tape recorder,　multimedia,　a computer and a slide projector Ⅵ.Teaching Time  five periods  The first period:　Introduction,　Vocabulary and Speaking  The second and the third period:　Reading and Vocabulary  The fourth period:　Vocabulary,　Listening and Writing,　Grammar 1－2  The fifth period:　Pronunciation Everyday English,　Function and Cultural Corner The First Period The General Idea of This Period In this period,　we are going to learn to say some large numbers quickly and correctly. And we will learn to use some new words.  Teaching Aims  1.Learn and master the following: Learn the meaning of the following words:　liquid,　expand,　contract,　substance,　mixture,　oxygen,　electricity.  Learn to say the large numbers in English. 2.　Develop the students’ speaking ability by listening and speaking.  Teaching Important Points 1.　Train the students’ abilities of listening and speaking. 2.　Enable the Ss to recognize the numbers,　fractions and percentages.  Teaching Difficult Point How to improve the students’ speaking ability. Teaching Methods  Individual and pair work. Teaching Aids 1.　a computer  2.　a projector  3.　the blackboard Teaching Procedures Step 1 Greetings and Lead－in  　 T:　Hello,　everyone. Ss:　Hello,　Mr Li. T:　Sit down,　please. Now in this unit we are going to learn something about general science and learn how to express the numbers. First of all,　let’s learn the new words. (Show the new words on the screen.) liquid 液體　　　　　　　expand 膨脹 contract 收縮　　　　　　substance 物質(zhì) mixture 混合物　　　　　oxygen 氧氣 electricity 電  T:　OK. Please read the new words and find the Chinese meaning for each worD.  (The Ss read and look up the words in the vocabulary individually. Teacher makes sure the Ss know the new words. Read the words after you.) Step 2 Choose the correct answers to the quiz. Teacher asks the Ss to look through Part one and judge which statements are true. The Ss read and tick the possible right sentences. T:　Now listen and check your answers. The Ss check the answers in pairs. 1.a　2.a　3.a　4.a　5.b　6.b　7.b T:　Now listen again and check your answers. Step 3 Practice 　 T:　Put the words in pairs or groups individually. (The Ss work on their own.)  T:　Compare the answers in pairs. 1.air—oxygen　　　2.contract—expand  3.earth—sun—moon4.gas—liquid—solid Step 4 Practice 　 Teacher shows the words on the screen. Have the class repeat them. electricity　iron　metal　steel　air　glass  T:　Can you find these things in our classroom? (Further questions for them to answer) Which of the above are natural? Which are man－made? Which can be both? T:　Work in pairs or groups. (Call back the answers from the class.) 1.　Electricity,　iron,　some metals and air are natural. 2.　Steel,　some metals and glass are man－made. 3.　Electricity and some metals (alloys for example) can be man－made and naturally. Step 5 Vocabulary and speaking 1.　Look at the numbers.(Show these numbers on the screen. Ask them to say the numbers. The English expression will be given when a student makes the answer.) 76　seventy－six 876　eight hundred and seventy－six 2876　two thousand,　eight hundred and seventy－six 32 876　thirty－two thousand,　eight hundred and seventy－six 432 876　four hundred and thirty－two thousand,　eight hundred and seventy－six 2.　Look and learn SB P42 Part 1  By this time,　the Ss should know the meaning of “million”. T:　Read the numbers. And find the two mistakes. This is a good time the Ss learn how to say the large numbers. The teacher walks around the class and offers help when necessary.  S:　I’ve found the errors. The first two numbers are misread.  T:　You’re right. But how can you say the numbers? S:　The first one should be fifty－two million,　four hundred and seventy thousand,　three hundred and eighty－three. T:　Great! What about the second? S:　It’s one hundred million. T:　Good job!  3.　Look and say Look at the following big numbers and say them in English quickly. 55 555 655 555 7 555 505 87 555 500 987 555 500 1 000 000 000 4.　Listen and write  T:　Listen to the following numbers in English and write them down. three thousand,　five hundred and forty－six thirty－three thousand,　seven hundred and ninety－six five hundred and twenty－two thousand,　four hundred and eighty－five three million,　two hundred and thirty－five thousand The Ss write in the Arab letter.  The teacher collects some of their work and shows it on the real object objector. 5.　Look at these fractions SB,　P42 Part 2 T:　Now please say these fractions in English. S:　Two fifth. T:　Is it right? S:　No,　it’s two fifths. T:　Good! Next? S:　Five eighths. S:　Nine tenths. S:　Three eighths. S:　Five sixths. T:　Who can describe the fractions in Activity 2 as percentages? S:　I’ll try. One third is the same as 33.33%. S:　Four－fifths is the same as 80%. S:　One－tenth is the same as 10%. S:　Three－quarters is the same as 75%. S:　One half is the same as 50%. S:　Two－thirds is the same as 66.66%. S:　Two－fifths is the same as 40%. S:　Five－eighths is the same as 62.5%. S:　Nine－tenths is the same as 90%. S:　Three－eighths is the same as 37.5%. S:　Five－sixths is the same as 83.33%. T:　Good! Your mathematics is excellent! 6.　Practice  T:　Let’s turn to P43, Part 4  Read these questions aloud and say the numbers. (Put the Ss into pairs to take turns asking and answering the questions. Circulate,　monitor and help where necessary. Call back the answers from the class.) (1)3 000 000　　　 (2)48 046 000  (3)50 000 000 (4)265 693 096  (5)750 375 000 (6)80 000 000 Step 6 Practice 　 T:　Work in pairs. Give your partner five sums. Use numbers over a million. Your partner must find the answers. Work out the answers and then say them in words. Step 7 Assignment 　 1.　Master the new words we have learned in this class. 2.　Work in pairs. Look,　listen,　speak and write the larger numbers,　fractions and percentages. Step 8 The design of the writing on the blackboard Module 5　A Lesson in a Lab The First Period liquid　　　　　　　　　　　　　　　　　　　55 555 expand　　　　　　　　　　　　　　　　　　655 555 contract　　　　　　　　　　　　　　　　　　7 555 505 substance　　　　　　　　　　　　　　　　　87 555 500 mixture　　　　　　　　　　　　　　　　　　987 555 500 oxygen　　　　　　　　　　　　　　　　　　1 000 000 000 electricity  Step 9 Activity and Inquiry Steps Students’ Acting Teacher’s Organizing 1 The students are asked to use a mixture of percentages,　additions and fractions,　 as in the previous activity.　Then work out the questions on their own first,　but leave the answers off the paper they write the questions on. Ask the students to work out the answers independently. 2 The students should exchange questions and write the answers out on paper as they would say them (i.e. in words,　not just in figures). The teacher looks around the class, inspecting the students’ activity. 3 Take it in turns to ask and answer each other’s question. Ask the students to carry out the activity seriously. 111