英语教学设计3.docx

Module 5 A Lesson in a LabI. 教学内容分析本模块以A Lesson in a Lab为话题，引入了许多与科技、实验有关的词汇，阅读部分简单介绍了金属的氧化反应并列出了显示部分金属活动性能的表格，旨在通过模块学习，使学生了解一些基本的科学实验知识，学会怎样写实验报告，并掌握一些相关的词汇与短语，激发学生对科学的兴趣。本模块还要求学生学会一些大的整数、分数、小数还有倍数的表达方法，通过阅读了解国外有关科学教学的情况，扩大学生的知识面，并能就所学的内容谈论理科课程和实验。 Introduction 部分以科学常识问答的形式导入，激发学生的兴趣。列举了相关的词汇，并设计了三个练习活动，学生通过完成任务的形式来学习有关词汇。 Vocabulary and Speaking 部分引入了一些数字词汇，通过发现式的教学法来让学生掌握其用法。 Grammar 1 部分介绍了形容词的比较级，主要是引入了倍数的两种主要用法，并通过探究，发现型练习学生对这两种表达方法的了解。Reading and Vocabulary 由两篇实验报告短文组成，Passage A介绍了金属在生活中的重要性，并列举了一些金属在氧气、水及蒸汽中的反应及结果；Passage B介绍了A simple Scientific Experiment，要求学生学习如何描述或写一个科学实验报告。通过两篇短文的学习，继续引入与本模块主题有关的词汇，并通过两个练习使学生熟悉这些词汇，同时这些练习也为接下去的阅读活动作了铺垫。通实践型练习，学生可以熟悉课文内容和学会使用有关的词汇。同时培养学生的观察能力。Vocabulary 部分引入了表示实验仪器的词汇，并介绍了带分数、小数的读法，让学生对常见的实验仪器和基本的科学计量有初步的了解。Listening and Writing 部分的内容是实验课上老师与学生的对话，编者所设计的活动是让学生能在听懂对话的基础上获取所需要的信息，并能就得到的信息学会填写相关实验报告。话题贴近生活，使学生觉得有较高的实用性。Grammar 2部分通过几个发现型语法练习来继续介绍形容词和副词的比较级的用法。并通过设定比较范围的操练，让学生体验到语法输入与输出的过程。Pronunciation 部分介绍了英语中特殊疑问句和一般疑问句的句型，要求学生通过听力活动来体会，并学习掌握两种句型的语调，通过模仿来正确朗读这两种类型的句子。Everyday English 部分介绍了五个日常用语，要求学生明确其意思，能在正确的场合中得当地运用这些句子。Function 部分介绍了次序问题在写作中我们应注意的一个重要环节。这一部分内容要求学生掌握表示次序的词的用法。让学生体会此类词在文章组织中的作用。 Cultural Corner 部分是一篇从一个加拿大高中同龄学生的角度介绍加拿大学科教学的有关情况，通过阅读同龄人的文章使学生增加中国学生对国外高中教育的了解，使学生可以横向比较两国的学习情况，初步运用本模块所学的相关词汇。 Task部分是对本模块的一个复习与应用，要求学生小组活动，回忆所做过的实验，运用所学过的词汇和知识来写一份简单的实验报告。从而达到学习与实践的统一。Module File部分有助于学生对本模块学习内容进行归纳，对自己的学习进行反思和检验。II. 教学重点和难点1. 教学重点(1) 掌握一些描述实验的词汇(2) 学习形容词和副词的比较级(3) 学会数字词汇的读法2. 教学难点(1) 有关介绍科学实验的讨论或发言； (2) 运用形容词和副词的比较级来表示倍数(3) 理解有关科学实验的文章，识别本模块的生词和词语并理解所在句子的含义(4) 能用正确的格式写实验报告III教学计划本单元分五个课时：第一课时：Introduction, Cultural Corner第二课时：Vocabulary and Speaking, Grammar 1 & 2第三课时：Reading and Vocabulary第四课时：Vocabulary, Listening and Writing, Everyday English, Pronunciation第五课时：Function, Task, Module FileIV教学步骤：Period 1 Introduction, Cultural CornerTeaching Goals: 1. To arouse Ss interest in learning about scientific experiments;2. To introduce the topic “A Lesson in a Lab”;3. Get Ss to learn some words to describe scientific experiments;4. Get Ss to know the scientific lessons in Canada.Teaching Procedures:Step 1 Lead-in and IntroductionPurpose: To arouse Ss interest in learning about scientific experiments.1. (Pair Work) Show some pictures on the screen and ask Ss to guess who they are.famous scientists (Albert Einstein)(Darwin) (Steven Hawking)(Marie Curie)2. (Pair Work) Ask Ss to match the persons with their fields.Alfred NobelPhysicsDarwinSteven HawkingChemistryLi ZhengdaoThomas EdisonBiologyAlbert EinsteinNewtonMarie Curie3. (Group Work) Ask Ss to choose the correct answers to the quiz on page 41.4. (Individual Work) Listen and check your answers.Suggested answers:(1) a (2) a (3) a (4) a (5) b (6) b (7) b5. (Pair Work) Introduce some new words to them by reading some sentencessolid liquid gas expandcontract substance mixture oxygen(1) Gold is solid, but when you heat it, it becomes liquid.(2) There are several kinds of gas in the air, but the oxygen is the most important for us.(3) Irons expand when it is heated, but irons contract as it cools.(4) Salt is a substance we use in cooking.(5) Air is a mixture of gases.6. (Pair Work) Ask Ss to finish Activity 2 on page 41.Suggested answers:(1) air-gas-oxygen (2) contract-expand (3) earth-sun-moon (4) gas-liquid-solid7. (Group Work) (Things can be divided into three kinds, natural, man-made, either natural or man-made. Can you give some examples?) Ask Ss to finish the table according to the meanings of the words.NaturalMan-madeEither natural or man-madeSuggested answers:(1) Electricity, iron, some metals and air are natural.(2) Steel, some metal and glass are man-made.(3) Electricity and some metals can be man-made and occur naturally.8. (Group Work) Read the new words together.Step 2 Cultural CornerPurpose: Let Ss know the scientific lessons in Canada.1. (Group Work) Lead-in: Arouse Ss interest to the passage by asking some questions. (1) Are you interested in scientific subjects? (2) What subjects are you interested in? (3) Why are you interested in it / them? (We are going to learn a text about a Canadian boy about your age. He was not interested in science at first, but his feelings about science have now changed. Lets read the text and try to find out why has Mark become more interested in science?)2. (Individual Work) Ask Ss to read the passage and answer the above question.Suggested answers:Because he has moved to a new school with good facilities and teachers.3. (Pair Work) Read the passage again and try to find out some words to fill in the table.feeling about sciencelast yearscience facilitieschemistry teacherthe factNobel prizeI -my parentsSuggested answers:feeling about sciencechanged, never used tolast yearschool, excellentscience facilitiesgood, lab, latest equipment chemistry teachertakes, lectures, interestingthe factfirst-class , wonNobel prizehighest, proudI -becoming, want to, going,my parentsastonished, thought4. (Group Work) Post-reading: Ask Ss work in pairs to retell the passage. The words in the table will help you. A is Mark Kendon. B is a Chinese student who studies aboard. For example: B: Whats your feeling about science ?A: My feeling about science have changed .5. (Group Work) Understand the passage by themselves, and the teacher walk around the classroom to help the Ss if necessary.Step 4 Homework:1. Finish Workbook Reading Exercises on page 93-94.2. Preview the Vocabulary and Speaking, Grammar 1 & 2.Periods 2 Vocabulary and Speaking, Grammar 1 & 2Teaching Goals: 1. To get Ss to have knowledge of this grammar point: Degrees of comparison;2. To enable Ss to read some large English numbers.Teaching procedures:Step 1 Revision Check the Workbook Reading Exercises on page 93-94.Step 2 Vocabulary and SpeakingPurpose: To help Ss master the rules of reading English numbers.1. (Group Work) Ask Ss to read the numbers on the screen. 1 20 300 4,000 50,000 600,000 7,000,000 80,000,000 900,000,000 1,000,000,000Suggested answers:We writeWe say1one20twenty300three hundred4,000four thousand50,000fifty thousand600,000six hundred thousand7,000,000seven million80,000,000eighty million900,000,000nine hundred million1,000,000,000one billion (Please pay attention to the bold face. Thats the unit of the numbers.)2. (Individual Work) Ask some Ss to write some numbers on the blackboard while the teacher says some numbers. The more he / she get, the higher scores he / she get. (1) three hundred and forty-five (2) two thousand seven hundred and eighty-nine (3) ninety-eight thousand four hundred seventy-three (4) a hundred thousand eight hundred and eighty-eight (5) fifty-two million four hundred seventy thousand three hundred eighty-threeSuggested answers:(1) 345(2) 2,789(3) 98,473(4) 100,888(5) 52,470,3833. (Pair Work) Ask Ss to look at the numbers in Activity 1 on page 42. There are two mistakes. Let them to find them out.Suggested answers:52,470,383 should be said“fifty-two million, four hundred and seventy thousand, three hundred and eighty-three”.100,000,000 should be said one hundred million. 4. (Pair Work) Ask Ss to look at the fractions and think over how to read the fractions.Suggested answers:The upper ones are cardinal numbers and the lower ones are ordinal numbers.5. (Individual Work) Practice: Ask Ss to read these fractions in English: 1/5, 2/9, 3/8, 4/7, 5/6.Suggested answers:1/5: a fifth / one fifth2/9: two-ninths3/8: three-eighths4/7: four-sevenths5/6: five-sixths6. (Pair Work) Describe the fractions in Activity 2 as percentages.Suggested answers:A fifth is the same as 20%.Two-ninths is the same as 22.22% (twenty-two point two two recurring percent).Three-eighths is the same as 37.5%.Four-sevenths is the same as 57.14%.Five-sixths is the same as 83.33% ( eighty-three point three three recurring percent).7. (Pair Work) Ask Ss to finish Activity 4 on page 43. (Work in pairs to take turns asking and answering the questions.)Suggested answers:(1) 3，000，000 (2) 48，046，000 (3) 50，000，000 (4) 265，693，096 (5) 750，375，000(6) 80,000,000Step 3 Grammar 1Purpose: Let Ss know how to use the comparative degree.1. (Group Work) Ask Ss to express the meaning of the following pictures. (1)_. A BLine a:Line b: (2) _. A B(3) _. Suggested answers:1) Triangle A is bigger than Triangle B.2) Line b is two times as long as Line a.3) Rabbit A is as big as Rabbit B2. (Pair Work) Ask Ss to summarize the sentences patterns of comparison.Suggested answers: as + 原级 + as; not as + 原级 + as Eg He likes her as much as he likes his sister. (他很喜欢她，同喜欢他的姐妹一样。) It is not as hot in Beijing as in Wuhan. （北京没有武汉热。） 比较级 + than； not + 比较级 + than; less + than Eg She sees me more often than she sees her brother.（她见我比见她弟弟的时间多。） the + 最高级 + 比较范围 Eg This is the best picture in the hall. （这是大厅里最好的一张画。） 倍数 + as + 原级 +as Eg This room is twice as large as that one. （这个房间是那个房间的两倍大。） 倍数 + 比较级 + thanEg This room is twice larger than that one. （这个房间比那个房间大一倍。） 倍数 + the length / height / depth / width / etc. of . Eg This room is twice the size of that one. （这个房间是那个房间的两倍。）3. (Pair Work) Ask Ss to finish Activity 1 on page 43.Suggested answers:(1) it is more usual to say “I went there twice”. (2) 20 metres long(3) 400 kg4. (Pair Work) Ask the Ss to finish Activity 2 on page 43.Suggested answers:(2) Winter is four times colder in Harbin than in Beijing.Winter is four times as cold in Harbin as in Beijing.(3) Mount Qumolangma is about six times higher than Mount Tai.Mount Qumolangma is about as six times high as Mount Tai.(4) My aunts house is twice as larger as my house.My aunts house is two times larger than my house.(5) Tom weighs over twice as heavy as Lily.Tom is over two times heavier than Lily.Step 4 Grammar 2Purpose: Let Ss master the usage of comparison.1. (Group Work) Ask Ss to read the sentences in Activity 1 on page 47. Then answer those questions.Suggested answers:(1) 1、2、3 （2）2、3 (3) 12. (Group Work) Let Ss to draw a conclusion about the usage of comparison by looking at the following sentences. (1) You are growing taller and taller. (2) Our country is getting more and more powerful. (3) When the sun rises, it is getting brighter and brighter. (4) When the sun sets, it is getting darker and darker. (5) The harder you work at your lessons, the better you will do in them. (6) The more you practice, the more fluently you will speak.Suggested answers:1)“越来越”: more and more + 多音节形容词； 单音节或双音节形容词 / 副词的比较级 + 单音节或双音节形容词 / 副词的比较级2）“越，越”：The + 形容词 / 副词的比较级 + 主语 + 谓语， the + 形容词 / 副词的比较级 + 主语 谓语3. (Individual Work) Ask Ss to finish Activity 2 on page 47. (Call back the answers after 2 minutes.)4. (Pair Work) Ask Ss to look at the sentences in Activity 3 on page 47. Underline the comparative expressions and circle the adverbs to give more information about the comparative expressions. (表示程度的副词much, a little, a bit, rather, a lot, any, etc.)可以修饰形容词或副词的比较级。）5. (Individual Work) Practice: Use the proper word to fill in the blanks. (1) Mary has been ill for a week. Is she getting _ better? (2) Local speakers speak Japanese _ faster than he does. (3) I weigh _ heavier than my cousin, but he is _ stronger than I am.Suggested answers:(1) a little / a bit / any(2) much / rather / a lot(3) much / a lot; a little / a bit / rather6. (Group Work) Play a game with the Ss. Let them guess what the following sentences mean. (1) Two heads are better than one. (2) More haste, less speed. (3) East, west, home is best. (4) The best mirror is an old friend. (5) Least talk, most work.Suggested answers:(1) 两人智慧胜一人。(2) 欲速则不达。(3) 金窝银窝不如自己的狗窝好。(4) 老友是宝镜。(5) 少说话，多干事。Step 4 Homework 1. Finish off the grammar exercises on page 91-92.2. Prepare for the Reading and Vocabulary class.Period 3 Reading and VocabularyTeaching Goals:1. Let Ss master how to read a passage;2. Let Ss master some words and phrases;3. Get Ss to talk something about science experimentsTeaching procedures:Step 1 Lead-in and Vocabulary1. Today we are going to talk about science experiments. What do you think of when you see a lab? (Allow them to say out their thoughts even if they dont know how to say in English.)balancealcohol burnertest tube (Use the pictures to introduce some words to the Ss.)2. (Group Work) Ask Ss how to do an experiment? Put the following words in order. conclusion aim result methodSuggested answers:When we do an experiment, we should first of all have an aim. We should use proper methods. We should find out the result and get a conclusion.Step 2 ReadingPurpose: To improve Ss reading skills.1. (Individual Work) Fast reading: Read Passage A and choose the best title for it.Suggested answers: The reaction of Metals2. Careful reading: (Individual Work) (1) Read the passage again. Answer these questions.a. Which of the metals in the table reacts the most with oxygen and water?b. What happens when you heat calcium in oxygen?c. Which metals react with steam?d. Does iron have a slow of fast reaction with steam?e. Does copper react with water?Suggested answers: Potassium, calcium and sodium It burns to form anoxide Magnesium, aluminium and zine. It has a slow reaction. No, it doesnt. (Do some explanations about them if necessary) (2) Read Passage B and fill in the table. Suggested answers:Iron in dry airIron in air-free waterIron in ordinary waterStage A(Starting experiment)cotton wool nailsoil layer water nailswater nailsStage B(1 week later)cotton wool nailsoil layer water nailswater nailsStage C(Result)Iron does not rustIron does not rustIron rusts (3) Read Passage B again. Complete the sentences. In the first part of the experiment, the _ is dry, not wet. It shows that iron _when the air is dry. In the second part of the experiment, you must _ the water to make sure there is no _ in it. You add _ to the water because this keeps _ out of it. It shows that _ does not rust in water that has no _ in it.Suggested answers: air does not rust . boil, air some oil, air nail, air3. Post reading (Group Work) Ask Ss to watch the experiment carefully. And then try to retell the stages of the experiment.ReportAim: _ _Apparatus: _ _Result: _ _Conclusion:_Method: _Suggested answers:ReportAim: To find out if iron rusts (a) in pure water; (b) in air-free water; (c) in dry airApparatus: 3 clean iron nails; test tubes; wood, oil; test tubes holderResult: The nails do not rust in the second and third tubesConclusion: Iron doesnt rust in air-free water or dry air but in pure water. Method: First, put some iron nails at the bottom of three test tubes. Second, half-fill the first two test tubes with water. Third, add some oil to the water into the second test tube. Fourth, push a wood down the third tube. Fifth, leave the tubes for one week.Step 3 Language studyPurpose: To let the Ss understand the passage well.1. (Pair Work) Vocabulary: Ask the Ss to finish Activity 6 on page 46. (Call back the answers after several minutes.)Reference: React: have effect on (of one substance applied to another) Steam: gas from boiling water Oil: liquid which does not mix with water, obtained from animals, plants or found in rock underground Boil: (of water or other liquid) reach the temperature at which change to gas occurs Scientific: of, for, connected with, used in science Experiment: test carried out carefully in order to study what happens and gain new knowledge Float: be held up in air, gas or on the surface of liquid; move with liquid or air Form: give shape or form to; make, produce Dissolve: (of a liquid) soak into a solid so that the solid itself becomes liquid2. Group work. Ss are divided into groups of four. Each group is supposed to read through each part, and then discuss them.(1) When we use metals, it is important to know how they react with different substances, for example, water and oxygen.使用金属时，要了解金属和不同的物质如何发生反应，例如，水和氧气。这一点很重要。react vi. & vt. 作出反应，反应。后接介词to。 Eg How did she react to the news? 影响，起作用。后接介词on / upon。 Eg The two react upon each other. 抗拒，反抗。后接介词against。 Eg Children tend to react against their parents by going against their wishes. 起反作用，反过来起作用。常接介词on / upon。 Eg Unkindness often reacts on the unkin