外研版八年级英语上册Module 9 Population Unit 1教案

Module 9 Population
Unit 1 The population of China is about 1.37 billion.
一、教学目标
1. 能够掌握新词汇和短语：noise, prepare, notes, report, grow, huge, cause, problem, increase, birth, billion, fifth, hang on
2. 能够掌握重点句型：
(1) Beijing is a huge city with a large population.
(2) That makes over 131.4 billion births a year.
(3) The population of China is about 1.37 billion.
(4) That’s almost one fifth of the world’s population...
3. 能够听懂谈论人口的对话。
4. 能够用大数字谈论人口问题。
5. 能够辨认并表述大数字。
6. 能够理解并准确表达大数字。
7. 能够通过学习本篇文本，培养学生的全球意识和保护环境的意识。
二、教学重点及难点
重点：1. 掌握本单元的新单词。
2. 掌握大数字的读法。
难点：1. 掌握大数字的读法。
2. 能够就人口问题与同伴展开讨论，提出解决办法。
三、教学准备
1. 多媒体设备和课件；
2. 设计课后巩固练习；
3. 教学图片。
四、教学过程
Step 1 Warming-up
Watch the video and talk about the population problem in group.
T: Hello, everyone. Today we’ll start a new Module. Now let’s watch the video firstly and then talk about the solutions for this phenomenon.
【设计意图】通过观看视频引出本模块关于人口的话题，激发学生的兴趣。
Step 2 Pre-listening
1. Learn the new words and expressions.
(1) Learn the new words and expressions by reading aloud together.
(2) Let Ss stand up and read the new words and expressions one after another, and correct their pronunciations.
2. Work on Activity 1.
(1) Ask Ss to talk about the picture using the words in the box in groups.
(2) Invite some Ss to share their discussion.
【设计意图】词汇练习，旨在通过让学生了解听力中会出现的生词，为下面的听力和对话扫清语言上的障碍。
3. Work on Activity 2.
(1) Play the recording and ask Ss to choose the correct answer.
(3) Check the answer as a class.
(4) Ask Ss to read the large numbers in Activity 2.
【设计意图】让学生练习大数字的读法，为理解下面的对话做好铺垫。
Step 3 While-listening
1. Listen and do the tasks.
(1) Choose the correct answer.
What are Betty, Tony and Linglingmainly talking about
A. Babies born every year in the world.
B. The growing population.
C. The population of China.
(2) Answer the following questions.
a. How many babies are born every year in the world
b. What’s the population of the world
c. Why won’t China’s population grow so fast
2. Listen again and complete the notes.
Step 4 Post-listening
1. Read the conversation and then fill the blanks.
2. Read the dialogue and act it out in groups.
【设计意图】本部分的听力活动主要是培养学生听大意和辨听大数字的能力。笔记练习旨在培养学生捕捉细节信息的能力。短文填空帮助学生进一步掌握对话内容。
3. Lear the language points.
(1) I’m preparing some notes for a report called “Our growing population”.
prepare … for … 表示“为……准备……”。
(2) The population of China is about 1.37 billion.
population 意为“人口”，用large 或small来修饰。 population是集合名词，没有复数形式，做主语时要用单数形式。
(3) That causes a lot of problems, such as too much traffic and noise.
too much意为“太多”，其后接不可数名词。
辨析：noise, voice 与 sound
(4) That’s almost one fifth of the world’s population, that is 7 billion.
one fifth意为“五分之一”。表达分数时，用基数词表示分子，序数词表示分母。当分子大于1时，分母的序数词用复数。分数做主语时，谓语动词在数上与分数后的名词保持一致。
(5) The population of China is about 1.37 billion.
billion 数词，意为“十亿”。在英语中，hundred, thousand, million和billion前面有具体数字时，它们都要用单数形式；但是当与of搭配使用时，它们都必须用复数形式，表示概数，而且不能与具体的数字连用。
【设计意图】学习课文中出现的语法点，帮助学生更好地理解课文并让学生学会运用这些语法点。
4. Work on Activity 4.
(1) Ask Ss to read these sentences and choose the correct answer individually.
(2) Check the answers as a class.
(3) Ask Ss to use these words (birth, huge, increase, hang on, notes, problem, report, billion) to make sentences in groups.
【设计意图】本活动为词汇练习，要求学生能够用简单的英文解释单词。教师应引导学生了解将生词放在语境中学习，是学习英语单词的正确方法。
5. Work on Activity 5.
(1) T shows the large numbers and asks Ss to try to read them firstly.
(2) Play the recording and ask Ss to repeat it loudly.
【设计意图】本活动旨在训练学生听辨和表述大数字的能力。教师应帮助学生小结大数字的读法。
6. Work on Activity 6.
(1) T asks Ss to check (√) the statements they agree with.
(2) Ask Ss to work in groups and discuss their answers.
(3) Ask some Ss to show their answers and reasons.
【设计意图】本活动属于听力后的输出活动。由于学生已对人口问题和大数字的表述能力有了基本认识，所以本活动可以采用开放的操作方式，培养学生的口语表达能力。
7. Do the exercises.
【设计意图】通过练习巩固本课所学知识，考查学生对知识的掌握程度。
Step 5 Summary
1. Key words: noise, smoke, notes, report, huge, increase, problem, birth, billion, fifth, hang on, grow
2. What’s the population of … 询问“……有多少人口”。
3. The population of China is about 1.37 billion.
4. That’s almost one fifth of the world’s population...
Step 6 Homework
1. Practice the speaking and writing of large numbers.
2. Review the words and expressions we learnt today.
五、板书设计
Unit 1 The population of China is about 1.37 billion.
1. Key words: noise, smoke, notes, report, huge, increase, problem, birth, billion, fifth, hang on, grow
2. What’s the population of … 询问“……有多少人口”。
3. The population of China is about 1.37 billion.
4. That’s almost one fifth of the world’s population...