资源简介

(共43张PPT)
Unit 2
Section 1 Listening and
Section 3 speaking
Amazing numbers
学习目标
I can
understand the importance of numbers in daily life
record and present information with numbers in English
use cardinal and ordinal numbers correctly.
understand how numbers developed and how they differ between cultures.
01
听
力
训
练
前
03
听
力
训
练
后
06
回
顾
总
结
07
随
堂
小
练
02
听
力
训
练
中
04
迁
移
创
新
05
考
点
速
递
学习内容
Listening
Pre-listening
1
水果切切乐
点击水果，大声地读出每个水果后面的单词或数字
Words game
1:15
11 Dec.2027
0.25
17.17
341205
1385.5
27%
check　
point
1/5
2/3
budget
currently
percent
Numbers play an important role in our daily lives. Let’s say out numbers in use in our everyday life
Ask the time, the date
What time is it now
What date is it today
It’s 7:30, it’s time to get up.
It’s 21 July.
Shopping and price 购物与价格
Weight management 体重管理
How much do you weigh
How much are these apples
It’s 9 yuan a kilo. It’s 1.5 kilos, they cost 13.5 yuan in total.
I weigh 55 kilograms. I’d better lose weight to keep healthy
—Which pages are for today’s homework
页码指引
年龄问答
—How old is your sister
—Pages 20 to 22. let’s do our homework together.
—She was born in 2013. Today it’s her 13th birthday
Look and say
The population of the world is still changing
What’s the population of the world
By January 2025, the world population reached 8.1 billion.
The United Nations believes the world population will be larger than 10 billion by 2100.
World Population
By 2100
10 billion
World Population
Jan. 2025
8.1billion
Which country has the largest population, China ,India or US
India is the most populous country in the world. China has the second largest population and US is the third.
Which country has the largest population, China ,India or US
Asia is the most populous continent. Almost two-thirds of the world’s population live in Asia
According to the latest data, the three most populous cities are Tokyo in Japan, Delhi in India, and Shanghai in China.
Which city has the largest population
While-listening
02
How do we use numbers to record and present information
Think
The worlds countries and population
1 Discuss the questions below in pairs.
(1) What is the population of the world now
(2) Can you name the three largest cities in the world by population
By January 2025, the world population reached 8.1 billion.
2 Ellie and Ann are talking about countries and population around the world. Listen to the conversation and choose the correct answers.
(1) What’s the world's population according to the conversation
a about 8 billion
b about 10 billion
c about 13 billion
(2) How many people will there be
in the world in 2100
a more than 9 billion
b more than 10 billion
c more than 12 billion
Tips :
We can express numbers in different ways:
27%: twenty-seven per cent
1/5: one fifth
2/3： two thirds
(3)What per cent of the world's population currently live in Asia
a a bit over 30% b less than 50% c about 60%
(4) Which of the following cities is discussed in the conversation
a Shanghai b Shenzhen c Beijing
3 Listen again and answer the question below.
What does Ann mean when she says “the number keeps changing”
The current number might be out of date soon.
Post-listening
03
Read the listening materials and check your answers.
Ann: Hi Ellie, have you thought about our project on different countries
and people around the world Any ideas so far
Ellie: Of course. I've already written down some questions for the project.
Let’s look up the answers online!
Ann: Sounds good. I’m free to do it now. What questions do you have
Ellie: OK, here's my first question. How many countries are there in the world
Ann: Almost 200 countries.
Ellie: How many people are there in the world
Ann: The number keeps changing. A report from 2022 shows that there are
around 8 billion.
Ellie: Got it. It’s obvious that the world population is still growing.
Ann: Yes, indeed. The United Nations believes the world population will be
larger than 10 billion by 2100.
Ellie: Wow. That’s huge. Where do most people live, then
Ann: Asia is the most populous continent. Almost two-thirds of the world’s
population live in Asia. Currently, the world's three most populous
countries are India, China and the USA.
Ellie: Good. Just curious: which are the most populous cities in the world Ann: Well, according to the latest data, the three most populous cities are
Tokyo in Japan, Delhi in India, and Shanghai in China.
Ellie: Noted. Let’s make sure to include the correct information in our project.
迁移创新
04
4 Imagine that you are working on a project about the population of different countries around the world. What methods are you going to use to find the information How will you record and present the information you collect
...
...
Your ideas
We use numbers to record things like weight (3 kg), age (15 years) and scores (90 points). They help show information clearly in tables or graphs, such as "50 students like math" in a table. Numbers make it easy to compare, like "Tom is taller than Lily: 170 cm vs 165 cm".
Speaking
How do we use numbers in daily life
Think
Tip People use numbers to:
design buildings
develop new medicine
grow crops
make a monthly budget
plan a journey
Using numbers in daily life
Numbers play an important role in our daily lives. Discuss how people use numbers with your classmates.
S1: How do people use numbers in daily life
S2: People use numbers to do a lot of things,
like planning a journey for example. We
need to decide the dates. And then we
need to check the train or flight schedule.
Also, we need to make a budget.
S1: That’s true. People also use numbers to...
S1: How do people use numbers in daily life
S2: People use numbers to do a lot of things, like designing buildings for
example. Architects must calculate the exact lengths, widths and heights.
They also need to figure out how much building materials, such as bricks
and cement, are needed.
S1: That’s true. People also use numbers to...
S1: How do people use numbers in daily life
S2: People use numbers to do a lot of things, like making a monthly budget
for example. We list out our income, like how much money we get
from work. Then we count the expenses, such as food costs and rent.
S1: That’s true. People also use numbers to...
S1: How do people use numbers in daily life
S2: People use numbers to do a lot of things, like developing new medicine for example. Scientists need to measure the precise amounts of each chemical. They have to record numbers when doing experiments, like the time and the reaction data.
S1: That’s true. People also use numbers to grow crops for example. Farmers need to know how many seeds to plant in a field. They also calculate when to water the crops, based on the weather reports with numbers like temperature and rainfall.
Strong and weak forms
Some words (e.g. do, the, of, and, can, for, to) have both a strong form and a weak form. In most sentences, we use the weak forms of these words. Sometimes we use the strong forms for emphasis.
a an for of to
/ei / n /f :(r)/ / v /tu:/
/ / / n /f / v/ /t ,tu/
strong form
weak form
the and can have he do
/ i:/ / nd/ /k n/ /h v/ /hi:/ /du:/
/ i, / / n(d), n/ /k n/ /h v, v/ /hi/ /d , du/
strong form
weak form
Listen and repeat. Pay attention to the words in blue.
May: Do you know the number of students in your class
Ben: Yes, I do. There are 35 students in my class—18 boys and 17
girls. I can remember all their birthdays!
Listen to the conversation below. Pay attention to the pronunciation of the words in blue. Then practise it in pairs.
May: What’s your favourite subject, Ben
Ben: Maths. Our Maths teacher uses a lot of games to help us learn. He
makes the class really interesting. Also, I like to work with numbers.
May: OK. Do you know the number of students in your class
Ben: Yes, I do. There are 35 students in my class—18 boys and 17 girls. I
can remember all their birthdays!
May: You’re amazing!
考点速递
05
考点一：单词重读和弱读。（口语考试中）
考点二：谈论数字在日常的应用。
回顾总结
06
一、听取关于城市人口的一段短文。
二、学习句子重音的一般规则。
三、谈论数字在日常生活中的应用。
四、掌握本章节出现的单词和句式。
课堂小练
07
一、根据首字母或括号单词提示用正确的形式填写单词
1. After _______ ( check ) my teeth, the doctor advised me not to eat too many
sweets.
2. The number of visitors to Guizhou during the Spring Festival increased ________ (sharp ).
3.Hunan is one of the most amazing p________ in China.
4. At the beginning of the new year, I want to make a b______ for my lucky money.
5.With p__________ rising, cities should try to provide a more enjoyable, comfortable and convenient living environment.
checking
sharply
budget
provinces
population
6. She didn’t r_______ when I asked her a question.
7. We reached an___________ (agree) on how to solve the problem.
8. You can find people using mobile phones e_________ these days.
9. She is__________ (current) living with her grandparents.
10.He p_________ his mother that he would come back early.
reply
agreement
everywhere
currently
promised
二、完成句子
1.到2100年，世界上会有多少人？到那时世界人口将会上升到90亿。
How many people ____ ____ ______in the world by 2100 By then, the world population will ____ _____to 9 billion.
2.下楼时要注意，否则你可能会撞着别人。
Be careful when you _____ ______ the stairs, or you may walk into others.
3.对于学生来说，在日常 生活中保护视力非常重要。
It's very important for students _____ _____their eyesight_____ _____ ______.
4.我计划去上海旅行，我需要做一个预算.
I ____ ____ _____to Shanghai and I need to ____ ____ _____
5.数字在我们生活中起重要要作用，我们每天要用到数字做很多事情
Numbers _____ _____ ____ ______in our lives, and we use them to do many things every day
to protect in daily life
will there be
go up
go down
plan a journey/plan to travel make a budget
play an important role
Numbers are really important and used 1.e__________ in our daily life.
When designing buildings, architects（建筑师）use numbers. They 2. e________ calculate lengths, widths and heights. They also use numbers to know how many bricks, cement and other building 3.m_______ are needed.
For developing new medicine, scientists use numbers too. They measure the right 4.a________ of each chemical. When doing experiments, they write down numbers like time and reaction data.
And for our personal money, making a monthly 5.b_______ needs numbers. We write down our income, like how much money we get from work. Then we count our expenses（花销）, such as food costs and rent.
So, numbers are very 6.n_______ in many parts of our daily life. They are important and used a lot.
necessary
everywhere
exactly
materials
amounts
budget
三、完成句子

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