高中英语 Module 5 A Lesson in a Lab教案 外研版必修1(1).doc

module 5 a lesson in a labperiod onethe general idea of this periodin 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 aims1. learn some words and master their meaning. 2. learn to say large numbers in english.teaching important points1.train the students abilities of listening and speaking.2.enable the ss to recognize the numbers, fractions and percentages. teaching difficult pointhow to improve the students speaking ability.teaching methods individual and pair work.teaching aids the blackboardteaching proceduresstep 1 lead-in t:hello, everyone.now in this unit we are going to learn something about general science and learn how to express the numbers. first of all, lets learn the new words. (show them on the bb.)solid固体 liquid液体 gas气体 metal金属 expand膨胀 contract收缩mixture混合物 substance物质 oxygen氧气 surface表面 electricity电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 the teacher. )step 2 choose the correct answers to the quiz.(teacher asks the ss to look through activity 1 and judge which statements are true. the ss read and tick the possible right sentences.)t:now listen and check the answers.t:now listen again and check your answers.step 3 practicet:put the words in pairs or groups individually.(the ss work on their own.)step 4 practicet:all the things can be divided into three kinds, that is, natural, man-made, and either natural or man-made. who can give us some examples?s: tree or flower is natural. most of things in our classroom are man-made. water or electricity can be man-made and natural. t: good. now lets look at the words on the bb, put them in groups, and answer the questions. (teacher shows the words on the screen. have the class repeat them.)which of the above are natural?which are man-made?which can be both?electricity iron metalsteel air glass1. 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 occur naturally.step 5 vocabulary and speaking（p42&46）1. look at the numbers. (show these numbers on the bb. ask them to say the numbers. the english expression will be given when a student makes the answer.)76seventy-six876eight hundred and seventy-six2,876two thousand, eight hundred and seventy-six 32,876thirty-two thousand, eight hundred and seventy-six432,876four hundred and thirty-two thousand, eight hundred and seventy-six2.look and learn activity 1 on p42.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:ive found the errors. the first two numbers are misread. t:youre right. but how can you say the numbers?s:fifty-two million, four hundred and seventy thousand, three hundred and eighty-three.t:great! what about the second?s:its a or one hundred million.t:good job! 3.look and sayt: 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 1,000,000,0004.listen and write t:listen to the following numbers in english and write them down in the arab letter. three thousand, five hundred and forty-six 3,546 thirty-three thousand, seven hundred and ninety-six . 33,796 five hundred and twenty-two thousand, four hundred and eighty-five522,485 three million, two hundred and thirty-five thousand 3,235,0005.look at these fractions in activity 2 on p42t:now please say these fractions in english.s:two fifths. five eighths. nine tenths. three eighths. five sixths.t:who can describe the fractions in activity 2 as percentages?s:one third is the same as 33.33%. (thirty-three point three three recurring percent.)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%. (sixty-six point six six recurring percent.)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%. (eighty-three point three three recurring percent.)t:good! your mathematics is excellent!6.practice t:lets turn to activity 4 on p43. read these questions aloud and say the numbers. (put the ss into pairs and take turns to ask and answer the questions.)1. 3,000,000 2. 48,046,000 3. 50,000,000 4. 265,693,096 5. 750,375,000 6. 80,000,0007.look and learn vocabulary on p46.t: learn to say the decimals by looking at part 1 on page 46.(give them two minutes. work on their own first and then say to each other in pairs, paying attention to the numbers before and after point.)t: now write and say the numbers as decimals.s: 1/2 (naught)point five).2-1/4 (two point two five).3/4 (naught)point seven five).30-1/2 (thirty point five). 12-3/10 (twelve point three).t: very good! who can describe them as fractions?s: a half, two and a quarter, three quarters, thirty and a half,twelve and three tenthsstep 6 practicet: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 homework1. master the new words we have learned in this class.2. look, listen, speak and write the larger numbers, fractions and percentages. period twothe general idea of this periodin this period, were going to read a passage on the reaction of metals.teaching aims1. improve the students ability of reading comprehension.2. get the students to have a global understanding of the reading passage.3. train the students to guess the meaning of a word according to the context.teaching important points1. train the students reading ability.2. get the ss to understand the reading text.teaching difficult point how to improve the students reading ability.teaching methods fast reading and careful reading to understand the passage correctly.teaching aids1. a tape recorder 2. a multimedia computer 3. chalkboardteaching proceduresstep 1 lead-in (greet the whole class as usual.)t: we are going to do an experiment today.i need these things to do the experiment:test tubes, bunsen burner, salt .when we do an experiment, first of all, we should have an aim. we should use proper methods. we should find the result and draw a conclusion. have you ever done a scientific experiment? what is the correct order of a scientific experiment? (show the words on the screen.) conclusionaimresultmethod t:put the words into correct order. aimmethodresultconclusion step 2 motivationt:as we know quite well, metals are very useful. what are the different uses of metals? what should we know when using metals? which reacts most with water, potassium or iron? (show the three questions on the bb.)you will have a better understanding of metals after reading passage a. step 3 fast reading (teacher allows the ss a few minutes to do fast reading.)t:who has got the answers?s:different metals have different uses, for example, steel is used in cars and iron is used in electrical equipment.t:what should we know when we use metals?s:when we use metals, it is important to know how they react with different substances.t:so we must be careful when we use metals. which reacts most with water, potassium or iron?s:potassium.t:do we have to keep in mind how metals react with different substances?s:yes./no need. its enough to have some common sense. wed better leave them to the experts. better leave them to the people who are interested in this field of science. step 4 detailed reading (read the passage again. answer the questions in part 3 on p44.) (1) potassium, calcium and sodium. (2) it burns to form an oxide. (3) magnesium, aluminium and zinc. (4) it has a slow reaction. (5) no, it doesnt.step 5 further reading (exercises in english weekly)t:now read passage a carefully to choose the best title for it.s:the reactionof metals is the best title.step 6 language points1. it is hard to think of a world without metals. it是形式主语,真正的主语为to think of a world without metals,这是英语中一个很重要的句型。it is hard to think of a world without friendship / electricity.it is important to read the directions before you use the machine.it is possible to build a radio without using metals.2. equipment 不可数名词，“设备,装备”。1) fire-fighting equipment 消防设备 the cost of equipment 设备费用2) 常见的不可数名词有: news, information, advice劝/忠告/意见, fun嬉戏/乐趣, practice, furniture家具3. when we use metals，it is important to know how they react with different substances.使用金属时,要了解金属和不同的物质如何发生反应,这一点很重要。1) react with. 对起(化学)反应potassium reacts with oxygen easily. 钾和氧容易起反应。react to. 对产生反应,回应the eye reacts to the light.眼睛对光会起反应。 he didnt react to their words. 他对于他们的话没作反应。2) substance不可数名词，“物质”。a chemical substance 一种化学物质 what substance does it consist of?它是由什么物质组成的?4. the reaction of metals with these substances can be put in order. put.in order 把按顺序排列 keep order 维持秩序 obey orders 服从命令say numbers in order照顺序数数in good order井然有序out of order顺序乱的;出故障的step 7 practice learn to say the names of the metals in the table.step 8 homework 1. learn the new words by heart. 2. recite passage a. 3. preview passage b. period threethe general idea of this periodin this period were going to learn another reading passage.teaching aims1. learn and master some new words and expressions.2. learn to describe a simple scientific experiment.teaching difficult points1. enable the ss to write a report on a scientific experiment.2. learn to use the new words and expressions in this part.teaching methods reading, question and answer.teaching aids 1. a tape recorder2. a computer3. chalkboardteaching proceduresstep 1 revisionrevise the names of the metals learned in the last period and ask ss to read them in englishstep 2 presentationread the passage to find the answers to the questions.(show the questions above on the bb.)1. whats the aim of the experiment?2. what equipment do we need in order to do the experiment?3. how long does it take to see whether iron rusts in the three cases?4. how can we take the air out of water?5. how can oil prevent air entering water?step 3 readingread the passage individually and then discuss. make sure the ss know the new words andunderstand the meaning of the passage.step 4 call back the answers from the ss1. it is to find if iron rusts in dry air, in air-free water or in ordinary water.2. we need some clean iron nails, test tubes, test tube holder, cotton wool, oil & bunsen burner.3. a week.4. we can take air out of water by boiling it.5. because oil is lighter than water, it stays on the surface of water.step 5 learn the new wordsask ss to pick out the new words in passage b. write the words on the blackboard and learn.step 6 careful reading t:well. reread the passage carefully to further understand it. then fill in the blanks on p45.(then, finish the exercises in english weekly)step 7 language points1. add some oil to the water.在水中加点油。 add sth. to sth. else :把加到，给加点 add some sugar to the soup. 在汤里加点盐。 he planned to add a room to his house. 他打算再扩建一间屋子。 five added to ten makes fifteen. 五加十等于十五。2. this will keep air out of the water. 这会使空气不进入水中。 keep.out of.: 把挡在外面；不让靠近 the dog is smelly. keep it out of the room.这狗身上很臭/难闻，把它弄到屋子外面去。 keep out of the railroad track.请勿靠近铁轨。3. iron rusts in ordinary water.铁在普通的水里会生锈。 ordinary：adj. 一般的;普通的;平常的 in ordinary dress穿着便服ordinary work平常的工作step 8 practicecomplete the exercises in activity 5 on p46 and activities 10,11 on page 94 in wb.step 9 assignment1. do the experiment in groups of three after class.2. report a similar experiment you have just done in the lab. period fourthe general idea of this periodin this period, were going to learn listening and writing, grammar 1 & grammar 2.teaching aimslearn the grammar: degrees of comparison, and train their abilities of listening and writing.teaching difficult points1. improve the ss listening ability. 2. master the grammar: degrees of comparison.teaching methods finding and summarizing.teaching aids the blackboardteaching proceduresstep 1 revisioncheck homework and gives some comments.step 2 listening and writingt: read the listening material and try to predict what you will hear.(play the cassette for them to listen. play another time for them to complete the description of the scientific experiment. listen a third time. check their answers)step 3 grammar 1: degrees of comparison 1(learn how to use multiple in degrees of comparison)t: in junior middle school, we learned the sentence: “the earth is larger than the moon.” we add “forty-nine times” to the sentence on p43. have you noticed the word order?t: what do we say “两倍” in english?s: its twice.t: now please answer the questions in activity 1 on p43.s: it should be like this: i went there twice.s: object b is 20 metres long.and object b is 400 kgs heavy. step 4 practice(activity 2 on p43)work on your own first and then check the answers together.1. yangtze river is about three times as long as songhua river. yangtze river is about three times longer than songhua river.2. winter in harbin is four times as cold as that in beijing. winter in harbin is four times colder than that in beijing.3. mount qumolangma is about six times as high as mount tai. mount qumolangma is about six times higher than mount tai.4. my aunts house is twice as large as mine. my aunts house is twice larger than mine.5. tom weighs twice as heavy as lily. tom weighs twice than lily.step 5 grammar 2: degrees of comparison 2t: find the grammatical rules in the first three sentences in activity 1 on p47.s: the first sentence contains the structure “more and more”.t: good!s: the next two contain the structure “the more.the more.”. step 6 practice (activity 2 on p47)t: make sentences according to the example. work on your own, then check answers together.1. the hot metal is getting bigger and bigger.2. the magnesium is getting hotter and hotter.3. the sun is getting stronger and stronger during the morning.4. the sea is becoming warmer and warmer.t: read the sentences and pay attention to the adverbs used to indicate the degrees of comparison and find the rules. (activities 3/4 on p47) (the teacher summarize and explain the rules.)step 7 homework 1. find out more words or phrases which can modify the degrees of comparison. 2. finish exercises 1-4 on p91/2. period fivethe general idea of this periodin this period, were going to learn everyday english, function and cultural corner.teaching aimslearn and master the following: 1) pronunciation in the general question sentence and interrogative sentence.2) words and expressions of sequence.teaching important points1). everyday english: where do we go from here?keep the noise down. youve got it!go ahead!its your turn.2). a reading passage: cultural cornerteaching methods individual work, pair workteaching aids 1. a tape recorder2. chalkboardteaching proceduresstep 1 revisioncheck the homework exercises. 1. show the words and phrases that come before the degrees of comparison. 2. check the answers on p91.step 2 listeninglearn 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) whos the woman at the door? 3) is the experiment successful? 4) do you really want to have a go? step 3 everyday englishget the ss to guess the meaning of each sentence and then give the right answer. 1)a2)b3)a4)b5)astep 4 functionlearn 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 deskmates. step 5 culture cornert: 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