科普版九年级英语上册《Topic 2 The population in developing countries. Section B》优质课教案_27

Topic 2. The populati…初中英语仁爱科普2011课标版1教学目标Learning aims1.Knowledge goal(1)Go on learning the present perfect tense.(2)Learn how to express big numbers.(3)Drills: It is increasing by 80 million every year....the population in developing countries is larger than that in developed countries.2.Method goalLet the students practice big numbers in our daily life and master them.3.Emotion goalLet students care about the large population of China.Let the students know about the large population to bring bad results to the world.2学情分析Analysis of the studentsThe students have learned English for more than two years. They can understand the use of the perfect tense,and can express simple numbers in English.The students have taken great interest in English now.It’s not difficultfor them to maser Unit1Topic2SectionB.3重点难点Learning focus.Talk about the population in different countries in big numbers. Learning difficulties.(1)Talk about the population in different countries.(2)How to let students express big numbers freely.4教学过程4.1 第一学时教学活动活动1【导入】Step1Warming upStep1.Warming upShow some pictures with large population and ma ke some dialogsbetween students and a teacher.For example:T: Have you been there?S1: No,I havn’t.T: Would you like to go there?S1: No.T: Why?S1: Because there are too many people........................................Show some pictures with in our daily life numb ers and makesomedialogs between students and ateacher.T: How do you say it in English?S1: One hundred and fifty yuanT: What about this one?S2: Two thoundsand and eight Olmpic GamesT: This one?S3: Thousands of peopleT: This one?S4: ......Then the teacher ask,“What’s the population of China?”and lead intonew lesson.活动2【讲授】Step2、3、4Step2 Reading questioned, independent inquisition1.Show learning aims.2.Let the students read and study the followingnumbers andfind therules.5.18 five point one eight100 one hundred1,000 one thousand1,000,000 one million1,000,000,000 one billion1 , ↓0 0 0 , ↓0 0 0 , ↓0 0 0billion millionthousand3.Listen and read the numbers, paying special attention tothe intonation..543.8 five hundred and forty-three point seven1 562 one thousand, five hundred and sixty-two6 004 001 six million, four thousand andone7 198 764 502 seven billion, one hundredand ninety-eightmillion,seven hundred and sixty-fourthousand, five hundred and two4.Listen carefully and find the questions thatstudentsdon’t understand.5.Listen to 1a,answer the following questions.(1) What’s the population of the world?(2) Which country has the most largest population?Step3Multi-dimensionalinteraction, cooperation inquired into1.Discuss in groups to solve the problems that studentsdon’t understand.2. Discuss in groups and read the followingnumbers .(1) 973 nine hundred and seventy-three(2) 3 980three thousand , nine hundred and eighty(3) 9 8721ninety-eight thousand , seven hundred andtwenty-one(4) 768 540 seven hundred and sixty-eightthousand , fivehundred and forty(5) 2 346 780 two million, three hundredandforty-six thousand, seven hundred and eighty(6) 82 346 580 eighty-two million, three hundred andforty-six thousand, five hundred and eighty(7) 405 000 000 four hundred and five million(8) 5 555 555 555 five billion, five hundred and fifty-fivemillion, five hundred and fifty-five thousand,five hundred and fifty-five3.Listen carefully and retell the dialog according to themessages that are given.A:What a large population! The world has6.8 billion.And it is 80 million ever y year.B:Which country?A：China has the largest population. It1.3 billion,andIndia is with.B:the USA?A：309 million.B:It shows that in developing countries thanin developed countries.A:Theis gr owing faster.B:So it is.The population problemin deve loping countries.A:Chinacarried out ontrol the population.4.Listen to 1a and match the information,and finish 1b.1.the worldA.309 million2. ChinaB.6.8 billion3.IndiaC.1.3 billion4. the USAD.1.1 billion5.Discuss in groups , read 1a and fill in the blanks.The world has a population of 6.8 billion andit is increasing by __________ every year. ______ _ hasthe largest population. It has already reached __________and India is _________ with 1.1 billion.The population in developing countries is ______and isgrowing ________ than that in developedcountries. Luckily, our country has carried ou t the ___________ policy to control the population.6.Work in groups and discuss the population ofthe world.With the help of chart and questions.( 1).Which of these 5 countries has the largest/ smallestpopulation? What’s the population of it?(2). What can you tell from the population indevelopingcountries and in developed countries?(3). What problems does the large population cause?(4). What measures do you think should be taken to control thepopulation?Step4 Migration application,development inquired intoDo a social activity.Divide students into several groups and make a survey of the population about China /India /the USA/Canada/Russia.Draw a diagram .Make similar conversations after the example.For example:A:What's the population of the world?B:It's about 6.8 billion.活动3【练习】Step5Training examination,goal inquisitionChoose the best answer.1. —______ is the population of Russia?—143 million.A. How muchB. How manyC. WhatD. How2. There are ______ students in our school.A. three thousandsB. three thousands ofC. three thousandOf D. three thousand3. —Jenny always helps others. —______.A. So is sheB. So she isC. So does sheD. So she does4. The population of China is ______ than that of Japan.A. largerB. moreC. fewerD. Less5.The population of Shanghai than__ Ji’nan.A is larger,that inB are larger,that of Cis larger,that of D are larger,that in6.The population of Japan is_____ than thatof India.A lessB fewerC moreD smallerClassroom subtotalIn this class we have learned the present perfect tense / how to express big numbers in English and drills:(1)It is increasing by 80 million every year.(2)...the population in developing countries is larger than that in developed countries.It’s necessary for students to care about the world’s growing population.Blackboard writing designIt is increasing by 80 million every year....the population in developing countries is larger than that in developed countries.So it is.5 555 555 555.活动4【作业】HomeworkNow the population problem in the world is oneof the most serious problems. Please according towhat you know, talk about what measures China ha s taken and brought effect.1____________________________________2____________________________________ 3 ____________________________________ 4_____________________________________ 5_____________________________________ .......。