外研版八年级英语上册《The population of China is about 1.37 billion》Population PPT精品课件，共33页。
New words
noise n. 噪声；杂音
prepare v. 准备；预备
notes n. (pl.)笔记；随笔
report n. 报告；汇报
grow v. 增长；增大
huge adj.巨大的；庞大的
Read and answer.
1. What is Betty doing?
She is preparing some notes for a report called “Our growing population”.
2. What problem will population increase cause?
Population increase causes a lot of problems, such as too much traffic and noise.
Language points
1 The population of China is about 1.37 billion.
中国的人口大约为13.7亿。
billion 意为“十亿”，英语常用的数字单位与中文有所不同，为：hundred (百)、thousand (千)、million (百万)、billion (十亿)。
2 Hang on a minute! I will write that down too!
等等，我要把这点也记下来！
hang on 这个动词短语常用来表示“让某人等一下。”
稍等！我马上就回来。
Hang on! I’ll be back in a minute.
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
... ... ...
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