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(共47張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.
過去分詞作后置定語
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；增長 動詞形式為grow，通常指數(shù)量、尺寸、力度等增長或增大
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!
動詞不定式作定語修飾前面的名詞
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，示例供參考）
（1）prepare /pr pe / v. 準備；預備
prepare 的常見搭配：
·prepare sth. 準備某物
·prepare sth. for sb./sth. 為某人/ 某事準備某物
·prepare for sth. 為某事 做準備，相當于be/get ready for sth.
·prepare to do sth. 準備做某事
知識點
1
I’m preparing a report called “The world’s population”.
e.g. I helped my mother prepare dinner in the kitchen.
我?guī)蛬寢屧趶N房里準備晚飯。
We must prepare a room for our guest.
我們必須為客人準備一個房間。
My brother is preparing for the physics experiment exam in the
laboratory. 我哥哥正在實驗室里準備物理實驗考試。
I was preparing to leave. 我正準備離開。
可以作及物動詞，也可以作不及物動詞。
Deng Qingming finally got the chance to go to space after nearly 25 years of preparation.
經(jīng)過近25 年的準備，鄧清明終于得到了去太空的機會。
拓展：
·過去式和過去分詞：prepared
·名詞形式：preparation
·preparation 常用短語：
make preparations for sth.為某事做準備
make preparations to do sth. 為做某事做準備
考題1： [ 揚州] Science is my favourite subject, so I have prepared ________ the STEAM Club.
A. join B. joining C. to join D. to joining
【點撥】prepare to do sth.“準備做某事”，固定短語，所以用to join。
C
（2）report /r p t/ n. 報告；匯報
e.g. Could you tell me where Ms. Li will give us a book report
你能告訴我李老師將在哪里給我們做讀書報告嗎？
make/give a report（on sth.）
做一個（關于某事的）報告
返回
溫馨提示:可返回原文
考題2： 安靜點，杰克！你姐姐正在她的房間里寫報告。
Be quiet, Jack! Your sister _____________________ in her room.
is writing a report
billion /'b lj n / num. 十億
知識點
2
It said the world’s population was about 7.8 billion
in 2020.
相同用法的詞還有hundred，thousand，million。
billion 前有具體數(shù)字時，要用原形，表示確切的數(shù)字。billion 前無具體數(shù)字時，需要與of 連用，表示概數(shù)，“數(shù)十億的”。
e.g. At present, over one billion people speak Chinese in the world.
目前，全世界超過十億人在講中文。
Billions of trees are cut down every year to make paper for humans.
每年有數(shù)十億的樹被砍伐來為人類造紙。
考題3：[樂山改編] In 2022, India had more than 1.412 __________（十億）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，認為，料想
believe 后面可以接名詞、代詞或that 引導的從句作賓語。
知識點
3
I can’t believe it!
believe 不用于進行時態(tài)
e.g. Eric tried to explain why he was late for work, but his manager didn’t believe him. 埃里克試圖解釋他上班遲到的原因，但他的經(jīng)理不相信他的話。
I don’t believe he’s only 25. 我認為他不止25 歲。
Do you believe in yourself 你相信自己嗎？
It is believed that people born under the same animal sign may have similar characters.
人們相信在同一生肖下出生的人可能具有相似的性格。
當賓語從句是否定句時，需要否定前移
believe 的常見用法:
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 人們相信
believe it or not信不信由你
考題4： [牡丹江] It’s hard to ____________（ 相信）a tree can develop from a small seed（種子）.
believe
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increase / ' kri s/ n. 增大；增長
/ n'kri s/ v. 增大；增長
知識點
4
The largest increase in population will take place in
India, Nigeria and Pakistan.
反義詞為decrease 減少；降低
Many cities have a dramatic increase in the population aged over 65. 許多城市65 歲以上人口急劇增加。
have a(n)... increase in...
在……方面有……增長
☆作名詞時，既可作可數(shù)名詞，也可作不可數(shù)名詞，表示“ 在某方面的增長” 用介詞in。
increase 作動詞時的其他常見搭配：
·increase in 在……方面增長
·increase with 隨著……而增加
increase by 與increase to increase by 后接倍數(shù)或百分數(shù)，表示“增加了……倍或增加
了百分之……”。
increase to 后接增長后的具體數(shù)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.
我們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.
據(jù)說到目前為止廣東森林公園的數(shù)量已經(jīng)增加到1000 以上了。
考題5：（學科素養(yǎng)·科技自主）By 2025, China aims to _____________（增長）its production rate of China-made chips（芯片）to 70%.
increase
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hang on 稍等，等一會兒
hang on 常用于口語中，后可接a minute，a moment, a while 等詞組。
e.g. Hang on! I’ll be back in a moment.
稍等！我馬上就回來。
知識點
5
Hang on a minute!
hang 的其他常見短語：
·hang out 閑逛
·hang up 掛斷；把……掛起
·hang together 團結一致
·hang back 猶豫不決
考題6：[天津建華中學期末考試]— 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!
【點撥】根據(jù)后面“I’ll be back in a while.” 可知這里是等一下。
A
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（1）cause /k z/ v. 造成；引起
e.g. Less sleep may cause worries, stress and unhappiness.
睡眠不足可能會引起焦慮、壓力和不快樂。
The heavy rain caused the rivers to rise.
大雨引起河水上漲。
知識點
6
When populations increase too fast, it can cause
problems, such as too much traffic and noise.
考題7：[菏澤改編] 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 的常見搭配：
cause (sb.) sth. （給某人）造成某事
cause sth. to do sth. 使某物做某事
（2）problem /pr bl m/ n. 麻煩；問題
problem 與question problem 指需要研究解決的問題或難題，常與solve，cause，work on/out 等連用。 There are a number of possible solutions to the problem. 這個問題有很多可能的解決方法。
question 指有疑問、需要回答的問題，常與ask，answer 等連用。 May I ask you a question
我可以問你一個問題嗎？
辨析：
考題8：[本溪] Thanks to the teacher’s help, I solved all the ________ easily.
A. chances B. problems C. habits D. grades
【點撥】考查名詞辨析。chances 機會；problems 問題；habits 習慣；grades 成績。根據(jù)“Thanks to the teacher’s help, I solved all the...”可知是在老師的幫助下，解決了所有問題。
B
（3）too much 太多
too much, much too 與too many too much 形容詞性短語，意為“太多”，中心詞是much，常作定語，修飾不可數(shù)名詞。
名詞性短語，意為“太多”，在句中作主語或賓語等。
副詞性短語，意為“太多”，作狀語修飾動詞。
much too 副詞性短語，意為“太；非常”，中心詞是too，相當于very，修飾形容詞或副詞。
too many 形容詞性短語，意為“太多”，修飾可數(shù)名詞復數(shù)。
辨析：
e.g. Don’t eat too much meat. 別吃太多肉。
Teenagers these days depend on their parents too much.
現(xiàn)在的青少年們太依賴他們的父母了。
These shoes are much too tight. 這雙鞋太緊了。
You’d better not eat too many sweets. It’s bad for your teeth.
你最好不要吃太多糖果，那對你的牙齒有害。
☆口訣助記
too much, much too 與too many 的用法：
去掉前詞看后頭；
much 后接不可數(shù)（n.）；
too 則修飾形（adj.）或副（adv.）；
too many 要記住，
后接名詞必復數(shù)。
考題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；雜音
noise, voice 與sound noise 指人聽到的不悅耳、 不和諧的嘈雜聲。 There was too much noise outside the classroom. The physics teacher had to raise his voice, “Light travels much faster than sound.”
教室外面很吵鬧，物理老師不得不提高嗓音：“光比聲音傳播得快得多?！?br/>voice 通常指人的嗓音，如 說話聲或歌唱聲。 sound 泛指聽到的任何聲音 或響聲。 辨析：
☆圖解助記
拓展：
常用短語：make a noise = make noises 制造噪音，形容詞為noisy 吵鬧的，副詞為noisily 吵鬧地
考題10：[十堰改編] 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
考題11：[貴港] —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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