Module 9 Unit 1 The world's population was about 7.8 billion in 2020.（2022） 课件(共29张PPT，内嵌音视频) 2023-2

(共29张PPT)
外研版
初中英语外研版八年级上册
Module 9 Unit 1
The world’s population was about 7.8 billion in 2020.
新课导入
Let’s watch a video!
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能熟悉并能正确运用本课时的重点单词和短语
通过阅读，了解世界人口数量状况并用英文进行数字表达
世界人口数量状况
1.Work in pairs. Look at the picture and talk about it. Use the words in the box to help you.
city shop noise people traffic
There are too many people and shops in the city. It causes a lot of problems, such as too much noise and traffic.
2. Listen and choose the correct answer.
1. What’s the population of New York
a) About 17 million. c) About 30 million.
b) About 9 million.
2. What’s the population of Tokyo
a) About 4 million. c) About 14 million.
b) About 28 million.
3. Listen and read.
Lingling: What are you doing
Tony: I'm preparing a report called "The world's population".
Lingling: Well, I can help! I just watched a video about world population yesterday.It said the world's population was about 7.8 billion in 2020. And the number will climb to 8.5 billion in 2030.
Tony: I can't believe it! That's a huge number. Which countries are seeing the most population growth
Lingling: The largest increase in population will take place in India, Nigeria and Pakistan.By 2030, India will have about 1.5 billion people.
Tony: Hang on a minute! I'll make some notes!
Lingling: When populations increase too fast, it can cause problems, such as too much
traffic and noise.
Tony: That's true. How about countries with slow-growing populations
Lingling: Countries with low birth rates have problems too.There aren't enough people
to do all the jobs, or enough young people to look after the older ones.
Tony:I see. Great, thanks for the information! Now I can write my report!
1.What’s Tony doing
2.Who watched a video about world population yesterday
3.How many people will India have by 2030 according to the passage
4.What kind of problems will a country meet if its population increases
too fast
Ask and answer.
He is preparing a report.
Lingling did.
About 1.5 billion people.
It will meet problems such as too much traffic and noise.
Now complete the notes.
Population of the world in 2020:
Population of the world in 2030:
Population of India in 2030:
about 7.8 billion
8.5 billion
about 1.5 billion
4. Choose the correct answer.
1 Birth happens at the start /at the end of life.
2 Huge means large/small.
3 An increase in population means more/fewer people.
4 Hang on a minute means waiting for a short time/a long time.
5 Making notes means writing a long passage/a few words.
6 A problem is something easy/difficult.
7 A report is a long piece of writing/a few words.
8 A billion is a hundred/a thousand million.
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Language Points
noise → noisy 名词→形容词
noise 指人听到的不悦耳、不和谐的嘈杂声。
voice 通常指人的嗓音，如说话声或歌唱声。
sound 泛指听到的任何声音或响声。
辨析：noise, voice与sound
noise /n z/ n. 噪音；杂音
知识点
1
知识点
2
prepare/pr pe / v. 准备；预备
可以作及物动词，也可以作不及物动词。
prepare作为及物动词，可直接加名词作宾语，
常用短语：prepare sb. sth./ prepare sth. for sb.为某人准备某物；prepare to do sth.准备做某事。也可用作不及物动词，常用结构：prepare for sth.为某事做准备。
eg：I’m preparing to leave.我正准备离开。
report /rI p t/ n.报告，汇报
eg：I’m making a report to my classmates.
我正在为我的同学们作报告。
考向
report作名词时，是可数名词，其后
常接介词on/about/of表示“关于……的报告”。
常用短语：give a report to sb.向某人作报告；
a report card 报告单
知识点
3
【重点】
它也可以作为动词，意为“报告，汇报”；report sth. to sb. =report on sth. to sb. 向某人报告某事
It is reported that...据报道……
它的派生词为reporter，意为“记者”。
e.g.A woman reporter is reporting the news. Have you heard of the report about it
一名女记者正在报道新闻。你听说过关于它的报道吗？
believe /b li v/ v. 相信，认为，料想
believe 后面可以接名词、代词或that 引导的从句作宾语。
can’t /don’t believe sth. 不能/ 不相信某事
believe in sb./sth. 相信某人/ 物的存在
believe in sth./doing sth.
认为某事/ 做某事好（对、可接受）
I can’t believe it! 我不敢相信
知识点
4
increase /‘ kri s/ n. 增长；增大 / n'kri s/ v. 增长；增大
知识点
5
have a(n)... increase in... 在某方面有……增长
★ 作名词时，既可作可数名词，也可作不可数名词，
表示“ 在某方面的增长”
考向
【难点】
作动词时，可以构成短语increase by 和increase to。
辨析：increase by和increase to
increase by 后接倍数或百分数，表示“增加了……倍或增加了百分之 ……”
increase to 后接增长后的具体数字，表示“增加到……”
hang on 稍等，等一会
知识点
6
拓展：hang on 还可以表示“别挂电话”，相当于 hold on 或 hold the line，后可接 a minute,a moment,a while 之类的词组。
too much 太多
知识点
7
too much 形容词性短语，意为“太多”，中心词是much，常作定语，修饰不可数名词。
名词性短语，意为“太多”，在句中作主语、表语或宾语等。
副词性短语，意为“太多”，作状语修饰动词。
much too 副词性短语，意为“太；非常”，中心词是too，相当于very，修饰形容词或副词。
too many 形容词性短语，意为“太多”，修饰可数名词复数。
辨析：too much, much too与too many
活动小结
通过以上的活动，我们可以知道：
prepare … for … 表示“为…准备…”
too much+不可数名词
too many+ 可数名词
Hang on a minute! 通常用来表示让某人等一下。
探究二
数字的表达
5. Listen and repeat.
8,742 eight thousand, seven hundred and forty two
2,463,128 two million, four hundred and sixty three thousand,
one hundred and twenty eight
1,370,000,000 one billion, three hundred and seventy million
2,000,030,000 two billion and thirty thousand
朗读时，将每三位数看做一个单位，依次为billion，million，thousand。每个单位按照百、十、个位向下读，其中百位到十位之间要加入 and。
e.g. 729 ：seven hundred and twenty nine.
6,500,431,729：six billion five hundred
million four hundred and thirty one
thousand seven hundred and twenty nine.
在英语中，对于万以上的数字，我们改如何表达呢？这就要记住英语数字读法特点。以下面一个数字为例：
6，500，431，729
hundred
thousand
million
billion
注意每三个数为一个单位，按照百、十、个向下读。
大数字的表达方法
6，500，431，729
seven hundred and twenty-nine
thousand
million
billion
six
billion,
five hundred million,
four hundred and thirty-one thousand,
hundred
6. Prepare a talk on the world’s population. Think about the questions.
What is the population of the world
How fast is the world’s population growing
What are the problems of fast-growing and slow-growing populations
What else do you know about the world’s population
Now work in pairs and give your talk.
活动小结
通过以上的活动，我们可以知道：
朗读时，将每三位数看做一个单位，依次为billion，million，thousand。每个单位按照百、十、个位向下读，其中百位到十位之间要加入 and。
当堂检测
翻译下列句子。
1. 北京人口是多少？
_______ ____the _________ ____Beijing
2. 中国的人口大约为13亿。
The _________ ____China _____ _____ _________.
What is population of
population of is about 1.3 billion
当堂检测
4. 增长的人口给一些国家带来众多问题。
An __________ __________ causes______ ________in some ________.
3. 人口太多，空间不够。
There are______ ______people and there is not _______ ______.
too much
enough space
increasing population
countries
many problems
重点短语：
prepare a report
take place
too much
hang on
look after
thanks for
数字的表达方法
Module 9 Unit 1