unit1 topic2 section b(仁爱版九年级上）

Section B. Material analysis本课是九年级第一单元第二话题的第二课时，主活动是1a和2。本课通过谈论各国的人口数量，复习比较级的基本句型，学习高位数的表达。1b通过连线题，训练学生听懂高位数的能力。1c通过把对话转换为段落来巩固1a的内容。2重点学习高位数的读法。3让学生通过读图来操练高位数的读法。为了降低1a和3的难度，建议将2调整到1a前，作为一个读前的活动。通过谈论各国人口的现状，引导学生树立正确的人口观念。    .Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，复习形容词比较级的用法，继续学习数字表达。2.Skill aims: 能听懂高位数字，并作出正确判断。能通过整合对话内容，提升综合语言运用能力。3.Emotional aims: (optional)增强学生对人口问题的认识，了解各国的人口现状。增强学生关注社会的意识。4.Culture awareness: (optional)通过对比发达国家和发展中国家的人口增长情况，引导学生树立正确的人口观念。. The key points and difficult points1. Key points: Words and phrases: population, billion, increase, reach, Russia, luckily, policy, measure in developed/ developing countries, have a population of, increase by, carry out, the one-child policySentences: (1) It says the world has a population of 6.8 billion. (2) It is increasing by 80 million every year.(3) Which country has the largest population? (4) Whats the population of the USA.?Its (5) So it is. (6) The population problem is more serious in developing countries.Grammar: Go on learning and using Present Perfect. 2. Difficult points： 能更快更好的听懂和朗读高位数字。能正确使用数字表达各国的人口现状。. Learning strategies 通过1b的匹配练习，提升听的语言技能。 通过1a的朗读训练，能够准确、清楚地进行朗读，培养语感和自信心。 通过2的数字练习，能够抓住数字的表达规律。 通过3的图表描述，能够评价自己的学习情况，找出不足。. Teaching aids单词卡片（如：population， billion等）；多媒体课件；录音机；世界人口示意图；小黑板。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Revision（2-3 mins）Group workGreeting.T: Hello,boys and girls!T: Now lets have a competition in groups. Make new sentences by using these words (“just”, “never”, “yet”, “ever” and “already”) within two minutes.Greeting. Ss: HelloS1: I have already finished my homeworkS2可以播放数字歌，来复习简单的数字。2Lead-in(2-3 mins)Individual workPresent the information about population in different countries.T: Excellent！You have already searched for the information about the population in different countries, havent you?SsT: OK, whod like to be the first one to share your information? Volunteers?Present the information about population in different countries they have collected before class.Ss: Yes, we have.S1: China has a population of 1.3 billion.S2: India has培养学生整理信息，传达信息的能力。建议：此处可以中英文混用。3Pre-listening (10mins)Class activityindividual work.Step 1: Present the new words.T: Thats right. China has a population of 1.3 billion. But it is increasing by about 10 million every year. How large Chinese population is! Luckily, China has carried out the one-child policy to control it. Do you know what the population of Russia is?Ss: 143 million.T: Yes, the population in developing countries is larger than that in developed countries.Ss:Step 2: Get Ss to read and guide them to master the rules about how to read the numbers. Ask them to pay attention to the pronunciation.T: China has a population of 1.3 billion. But do you know how to express the large numbers like 1 300 000 000. First lets look at the blackboard. 218 306 5 366(Lead Ss to read numbers from the simple numbers to large ones like million and billion。)S1:Two hundred and eighteen.S2:Three hundred and six.S3: Five thousand, three hundred and sixty-six.(Conclude the rules about how to read numbers.)T: Now, look at these numbers. Can you read them?736 547 8 736 062 7 198 764 501(Guide the Ss to learn the rules of reading numbers. Then practice.)S4: 736 547 seven hundred and thirty-six thousand, five hundred and forty-seven.T: Now, I will ask some other students to read other numbers.S5: 8 736 062 eight million, seven hundred and thirty-six thousand and sixty-two.S6: 7 198 764 501 seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and one.T: You are great. Most of you have mastered how to read the numbers. Please look at the numbers in 2. Read them together.Try to understand the new words according to the teachers explanation.Ss: 143 million.Read the numbers, master how to express the large numbers according to the teachers explanation.S1: Two hundred and eighteen.S2: Three hundred and six.S3: Five thousand, three hundred and sixty-six.S4: 736 547 seven hundred and thirty-six thousand, five hundred and forty-seven.S5: 8 736 062 eight million, seven hundred and thirty-six thousand and sixty-two.S6: 7 198 764 501 Seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and one.Ss教师应板书所学生词和短语，以便学生整体把握重点。教师可以根据实际情况增加数字练习环节。在活动2中要引导学生注意并列词组间的语音语调。4While-listening (10 mins)Individual workClass activityStep 1: Get the Ss ready for listening. Then listen and finish 1b