(共47张PPT)
Unit 1 The world’s population was about 7.8 billion in 2020
Module 9 Population
1. Work in pairs. Look at the picture and talk about it. Use the words in the box to help you.
Listening and vocabulary
city shop noise people traffic
范例：There is too much noise in the street. There are more people in the world. There is so much pullution in the city. There is a shop in our town. Too many cars bring traffic problems.
1. What is the population of New York
a) About 17 million. b) About 9 million.
c) About 30 million.
2. What is the population of Tokyo
a) About 4 million. b) About 28 million.
c) About 14 million.
2. Listen and choose the correct answer.
b
c
Lingling: What are you doing
Tony: I’m preparing a report called “The world’s population”. ①
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. ② And the number will climb to 8.5 billion in 2030.
3. Listen and read.
过去分词作后置定语
Tony: I can’t believe it! ③ 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. ④ By 2030, India will have about 1.5 billion people.
Tony: Hang on a minute! ⑤ I’ll make some notes!
n.增加；增长 动词形式为grow，通常指数量、尺寸、力度等增长或增大
Lingling: When populations increase too fast, it can cause problems, such as too much traffic and noise. ⑥
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!
动词不定式作定语修饰前面的名词
Everyday English
·I can’t believe it!
·Hang on a minute!
·Great!
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 million
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.
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
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.
The population of the world was about 7.8 billion in 2020. The population increases too fast. Fast-growing population causes too much traffic and noise. There aren’t enough people to do all the jobs because of the slow-growing population. I also know the world’s population will climb to 8.5 billion in 2030.（答案不唯一，示例供参考）
（1）prepare /pr pe / v. 准备；预备
prepare 的常见搭配：
·prepare sth. 准备某物
·prepare sth. for sb./sth. 为某人/ 某事准备某物
·prepare for sth. 为某事 做准备，相当于be/get ready for sth.
·prepare to do sth. 准备做某事
知识点
1
I’m preparing a report called “The world’s population”.
e.g. I helped my mother prepare dinner in the kitchen.
我帮妈妈在厨房里准备晚饭。
We must prepare a room for our guest.
我们必须为客人准备一个房间。
My brother is preparing for the physics experiment exam in the
laboratory. 我哥哥正在实验室里准备物理实验考试。
I was preparing to leave. 我正准备离开。
可以作及物动词，也可以作不及物动词。
Deng Qingming finally got the chance to go to space after nearly 25 years of preparation.
经过近25 年的准备，邓清明终于得到了去太空的机会。
拓展：
·过去式和过去分词：prepared
·名词形式：preparation
·preparation 常用短语：
make preparations for sth.为某事做准备
make preparations to do sth. 为做某事做准备
考题1： [ 扬州] Science is my favourite subject, so I have prepared ________ the STEAM Club.
A. join B. joining C. to join D. to joining
【点拨】prepare to do sth.“准备做某事”，固定短语，所以用to join。
C
（2）report /r p t/ n. 报告；汇报
e.g. Could you tell me where Ms. Li will give us a book report
你能告诉我李老师将在哪里给我们做读书报告吗？
make/give a report（on sth.）
做一个（关于某事的）报告
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温馨提示:可返回原文
考题2： 安静点，杰克！你姐姐正在她的房间里写报告。
Be quiet, Jack! Your sister _____________________ in her room.
is writing a report
billion /'b lj n / num. 十亿
知识点
2
It said the world’s population was about 7.8 billion
in 2020.
相同用法的词还有hundred，thousand，million。
billion 前有具体数字时，要用原形，表示确切的数字。billion 前无具体数字时，需要与of 连用，表示概数，“数十亿的”。
e.g. At present, over one billion people speak Chinese in the world.
目前，全世界超过十亿人在讲中文。
Billions of trees are cut down every year to make paper for humans.
每年有数十亿的树被砍伐来为人类造纸。
考题3：[乐山改编] In 2022, India had more than 1.412 __________（十亿）people, and the large population can be both good and bad for India.
billion
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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。
知识点
3
I can’t believe it!
believe 不用于进行时态
e.g. Eric tried to explain why he was late for work, but his manager didn’t believe him. 埃里克试图解释他上班迟到的原因，但他的经理不相信他的话。
I don’t believe he’s only 25. 我认为他不止25 岁。
Do you believe in yourself 你相信自己吗？
It is believed that people born under the same animal sign may have similar characters.
人们相信在同一生肖下出生的人可能具有相似的性格。
当宾语从句是否定句时，需要否定前移
believe 的常见用法:
can’t /don’t believe sth.不能/ 不相信某事
believe in sb./sth.相信某人/ 物
It’s believed that 人们相信
believe it or not信不信由你
考题4： [牡丹江] It’s hard to ____________（ 相信）a tree can develop from a small seed（种子）.
believe
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increase / ' kri s/ n. 增大；增长
/ n'kri s/ v. 增大；增长
知识点
4
The largest increase in population will take place in
India, Nigeria and Pakistan.
反义词为decrease 减少；降低
Many cities have a dramatic increase in the population aged over 65. 许多城市65 岁以上人口急剧增加。
have a(n)... increase in...
在……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” 用介词in。
increase 作动词时的其他常见搭配：
·increase in 在……方面增长
·increase with 随着……而增加
increase by 与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……”。
辨析：
e.g. The population of our city has increased by 40% compared with that of 3 years ago.
我们城市的人口比三年前增加了40%。
It is said that the number of forest parks in Guangdong has increased to more than 1,000 so far.
据说到目前为止广东森林公园的数量已经增加到1000 以上了。
考题5：（学科素养·科技自主）By 2025, China aims to _____________（增长）its production rate of China-made chips（芯片）to 70%.
increase
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hang on 稍等，等一会儿
hang on 常用于口语中，后可接a minute，a moment, a while 等词组。
e.g. Hang on! I’ll be back in a moment.
稍等！我马上就回来。
知识点
5
Hang on a minute!
hang 的其他常见短语：
·hang out 闲逛
·hang up 挂断；把……挂起
·hang together 团结一致
·hang back 犹豫不决
考题6：[天津建华中学期末考试]— Tom, it’s time to have breakfast.
— ________I’ll be back in a while.
A. Hang on. B. That’s too bad.
C. Don’t be afraid. D. What a surprise!
【点拨】根据后面“I’ll be back in a while.” 可知这里是等一下。
A
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（1）cause /k z/ v. 造成；引起
e.g. Less sleep may cause worries, stress and unhappiness.
睡眠不足可能会引起焦虑、压力和不快乐。
The heavy rain caused the rivers to rise.
大雨引起河水上涨。
知识点
6
When populations increase too fast, it can cause
problems, such as too much traffic and noise.
考题7：[菏泽改编] The World Health Organization （WHO） has said that outdoor air pollution ________about 4.2 million deaths around the world each year.
A. uses B. happens C. causes D. provides
C
cause 的常见搭配：
cause (sb.) sth. （给某人）造成某事
cause sth. to do sth. 使某物做某事
（2）problem /pr bl m/ n. 麻烦；问题
problem 与question problem 指需要研究解决的问题或难题，常与solve，cause，work on/out 等连用。 There are a number of possible solutions to the problem. 这个问题有很多可能的解决方法。
question 指有疑问、需要回答的问题，常与ask，answer 等连用。 May I ask you a question
我可以问你一个问题吗？
辨析：
考题8：[本溪] Thanks to the teacher’s help, I solved all the ________ easily.
A. chances B. problems C. habits D. grades
【点拨】考查名词辨析。chances 机会；problems 问题；habits 习惯；grades 成绩。根据“Thanks to the teacher’s help, I solved all the...”可知是在老师的帮助下，解决了所有问题。
B
（3）too much 太多
too much, much too 与too many 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：
e.g. Don’t eat too much meat. 别吃太多肉。
Teenagers these days depend on their parents too much.
现在的青少年们太依赖他们的父母了。
These shoes are much too tight. 这双鞋太紧了。
You’d better not eat too many sweets. It’s bad for your teeth.
你最好不要吃太多糖果，那对你的牙齿有害。
☆口诀助记
too much, much too 与too many 的用法：
去掉前词看后头；
much 后接不可数（n.）；
too 则修饰形（adj.）或副（adv.）；
too many 要记住，
后接名词必复数。
考题9：Ice-cream is delicious, but we can’t eat ______.
A. much too B. too much
C. too many D. many too
B
（4）noise /n z/ n. 噪音；杂音
noise, voice 与sound noise 指人听到的不悦耳、 不和谐的嘈杂声。 There was too much noise outside the classroom. The physics teacher had to raise his voice, “Light travels much faster than sound.”
教室外面很吵闹，物理老师不得不提高嗓音：“光比声音传播得快得多。”
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：
☆图解助记
拓展：
常用短语：make a noise = make noises 制造噪音，形容词为noisy 吵闹的，副词为noisily 吵闹地
考题10：[十堰改编] The teacher told us not to make too much _______ because the other students were having an exam.
A. voice B. song C. music D. noise
考题11：[贵港] —So many people are talking and laughing loudly on the subway.
—Yes. It is too. ________ I can’t stand it.
A. lovely B. funny C. happy D. noisy
D
D
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