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n. 印度人
India['?nd??n]
n.印度
planet (s) ['pl?n?t]
['pl?n?ts]
The earth is a planet.
Arctic ['ɑ:kt?k]
a polar bear
Atlantic
[?t'l?nt?k]
[?t'l?nt?k]
surface ['s?:f?s]
increase [in'kri:s, 'inkri:s]
The numbers of the web sites are increasing.
Let's talk about population.
Task 2
population
large
China has 1.4 billion people..
China has the largest population in the world.
small
population
Canada has small population.
over 7
The world's population ______ over 7 billion
in total in the year 2010.
was
By 2025, the world may have 8 billion people.
By 2050, the world's population may reach 9 billion.
The population is increasing very quickly.