Section C. Material analysis本课是九年级第一单元第二话题的第三课时，主活动是 1a 和 3b 1a 具体了分析中国人口现状的严峻形势和政府采取的措施及成效这篇阅读文章较长，在阅读练习的时候，建议教师先解决部分生词，扫清单词障碍，1b 主要是培养学生找出段落的主旨句的能力而1c 则是要学生学习找到论据2 可以看作是语法巩固训练，但内容仍然紧扣主题3a 和 3b 是训练说和写的技能的通过本篇文章的学习，要求学生掌握一定的阅读策略和写作技巧，能够模仿作者恰当运用主旨句的写作方式，排篇布局引导学生关注社会问题，关注国家政策，培养学生树立良好的人口观念和正确的世界观Teaching aims1.Knowledge aims ：掌握本课的重点词汇和短语，继续学习现在完成时2.Skill aims: 能基本读懂课文材料，掌握一定的阅读技巧和方法能正确模仿本课课文，有条理地写出有关解决人口问题的措施的文章3.Emotional aims: (optional) 引导学生关注社会现象，培养学生树立正确的人口观念和社会意识4.Culture awareness: (optional) 通过中国人口严峻形势的分析，了解计划生育政策，引导学生关注社会问题的意识。
The key points and difficult points1. Key points: Words and phrases: social, natural, worse, government, offer, supply, paragraph, opportunity, newborn, percent, one fifth of, because of/thanks to, take measures to do sth., work well in (doing) sth. Grammar: Present Perfect 2. Difficult points：如何通过语境和构词法，猜测生词、短语大意，并感知其用法如何在阅读过程中找出文章主题和各个段落的Topic sentence 在口头报告和书面写作时，能合理使用topic sentence和 supporting details组织文章结构 Learning strategies通过任务前活动，引导学生预测阅读内容，降低阅读难度通过找主旨句的方法，教会学生在做口头报告或写作时合理布局，组织段落通过构词法和上下文，提升猜测词义来扫清阅读障碍的学习能力。
通过 2 部分的填空练习，培养学生在语篇中正确使用动词的意识 Teaching aids单词卡片（如 social/society，nature/natural，bad/worse/worst ，etc. ）或者幻灯片；关于计划生育政策的宣传片 Teaching procedures Stage (time period) Interaction patterns Teacher activity Student activity Remarks 1 Warming-up (3-5 mins) Group work Greet and watch a movie. T: Good morning, everyone. Lets enjoy a short movie about “The one-child policy”. After watching, share your feelings with others. T: What s your feeling about the movie? S1: There are so many people in the world. S2: How serious the problem is! S3Greet and watch a short movie. Ss: Good morning, Miss Tan. OK S1: There are so many people in the world. S2: How serious the problem is! S3教会学生通过视频提取信息，拓展自己的视野。
引 导 学 生 关 注 社 会 常识，成为政策的传播者和执行者2 Revision (3-5 mins) Class activity Write down some numbers on the Bb and get the Ss to read out as quickly as possible. T: I ll write numbers like this “88”on the Bb, please say these numbers as quickly as you can. Ready? Ss: Yes. (Teacher write 88 on the Bb.) S1: Eighty-eight. (Teacher write 888 on the Bb) S2: Eight hundred and eighty-eight. (Teacher write 8 888 on the Bb) S3: Eight thousand, eight hundred and eighty-eight. (Teacher write 8 888 888 888 on Say the numbers as quickly as they can. Ss: Yes .S1: Eighty-eight .S2: Eight hundred and eighty-eight. S3: Eight thousand, eight hundred and eighty-eight. 从易到难的任务能够增强学习知识的趣味性，激发学生潜在的挑战意识。
the Bb) S4: Eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eight. S4: Eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eight. 3 Pre-reading (5mins) Class activity Present the word cards and get the Ss to guess the meaning of the new words according to the old one. (Show the card with “nature ” “natural ” on to the Ss, pointing to “nature ”.)T: Look at this word, please read it together. Ss: nature. T: Thats right. We have learnt Guess the meaning and the pronunciation of the words according to the old words. Ss: nature.教师运用词性的变化和构词法，引导学生学会构建词汇链，是拓展词汇量的方法之一。
it already. How about this one. They look almost the same. (Encourage the Ss to read the word. ) Ss: nature. (Teach other words in the same way or by pictures. ) Ss: natural. 4 While-reading (10mins) Individual work and Pair work Step1: Fast-reading Get the Ss to read the passage quickly and finish 1b in pairs. Check the answer in class and give necessary explanations. T: OK, now read the passage quickly and match the main ideas with each para. in pairs. SsT: Now, please discuss your answers with your partners; Read the passage quickly and try to match the main ideas with each para. in 1b. After they finish it, discuss the answer with their partners. 引 导 学 生 通 过 通 读 全文，讨论归纳段落大意的能力 , 培养学生的阅读策略。
Individual work and Group work explain your reasons to each other. S1: No. 1 is B. S2: No. 2 is C. S3: No. 3 is A. Step 2: Comprehensive-reading Guide the Ss to read the passage carefully and complete the table after reading. Finish 1c. T: Read the whole passage again, find out the details of each topic and fill in the blanks in 1b. Then you can discuss with your group members. Pay attention to the adj. in the chart. T: Now, check the answer with us. S1: No. 1 is B. S2: No. 2 is C. S3: No. 3 is A. Read the whole passage again, find out the details of each topic and complete 1c. Then discuss with their group members. Pay attention to the adj. S1: Population of China is the 教 会 学 生 整 合 阅 读 信息，学会用不同的语句表达同样的意思，提高学生的知识迁移能力。
S1: Population of China is the largest and about one fifth of the word. S2: less living space S3: less job opportunities S4T: Wonderful! Now try to retell the text in your group according to the table in 1c. Ss: The population of China is the largest in the world. It is about largest and about one fifth of the word. S2: less living space S3: less job opportunities S4Ss: The population of China i。