内容正文：
9
Unit 1
The population of China is about 1.37 billion.
樱桃园中心初级中学 张翠梅
9
掌握本单元的重点单词和短语
能辨别并掌握大数字的读法
能够运用所学句型谈论人口问题
2
12
20
22
220
222
two
twelve
twenty
twenty-two
two hundred and twenty
two hundred and twenty-two
十位与百位间用 “and”。
个位与十位间一般要用连字符号“-”,
one hundred 一百
one thousand 一千
one million 一百万
one billion 十亿
ten billion 一百亿
one hundred and ten billion 一百一十亿
one hundred and twenty-one billion
一百二十一亿
100
1,000
1,000,000
1,000,000,000
10,000,000,000
110,000,000,000
121,000,000,000
billion /'bIljən / num 十亿 .
书写时每三位划分为一个单位。
billion
million
thousand
one billion,
two hundred and thirty-four million,
five hundred and sixty-seven thousand,
eight hundred and ninety one
comma
逗号
1, 234, 567, 891
朗读数字时，将每三位数看做一个单位。上例中的数字可以分解为...billion...million...thousand...，每个单位按照百、十、个位往后读，遵循百位以内数字的读法。
2,314
1,370,000,000
2,000,030,000
two thousand,three hundred and fourteen
one billion, three hundred and sevevty million
two billion and thirty thousand
1.37billion
131.4billion
one point three seven billion
one hundred and thirty-one point four billion
小数点读:point
what's the population of Shanghai?
The population of Shanghai is about...
A::What's the population of sahnghai?
B:The population of shanghai is about... What's the population of...
B: About...
city population
Shanghai 12,700,000
London 7,172,000
New York 18,500,000
noise /nɔIz / n 噪声;杂音
prepare /prI'peə / v. 准备；预备
notes /nəuts / n.(pl.)
笔记；随 笔
report /rI'pɔ:t / n
报告；汇报 .
huge /hju:dʒ/ adj
巨大的；庞大的 .
increase /'Iŋkri:s / n; v 增大；增长
cause /kɔ:z / v 造成；引起.
problom /'prɔbləm / n 麻烦；问题
birth /bə:θ/ n 出生
grow /ɡrəu / (grew /ɡru:)
v 增长；增大 .
fifth /fIfθ/ num
第五；五分之一 .
hang on 稍等
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.
1 W