内容正文:
Unit7 Know our world
Lesson38
The world is a big place
The earth is a very special planet.
The earth is our home. It must be treated well by humans.
By Anne
1
The continents of the world
Asia
Europe
North America
Africa
Antarctica
Australia
South America
How many continents are there in the world? Point them out.
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2
How many oceans are there in the world? Point them out.
the Atlantic Ocean
the Indian Ocean
The Arctic Ocean
The Pacific Ocean
The oceans of the world
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3
The population of the world is increasing very quickly.
In the year 2010, the world’s population
was over 7 billion in total.
In 2025, the world’ s population will reach 8 billion in total.
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4
the top 10 countries of the population in the world
China has the largest poputation.
India has the second largest populaton.
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planet /ˈplænɪt/ n.行星
billion /ˈbɪlɪən/ n.十亿;千兆
total /ˈtəʊtl/ n.总计;总数
adj.总的;总计的
increase /ɪnˈkriːs/ v.增加;增大
surface /ˈsɜːfɪs/ n.表面;表层
Indian /ˈɪndɪən/ adj.印度的 n.印度人
Atlantic /ætˈlæntɪk/ n. & adj. 大西洋(的)
Arctic /ˈɑːktɪk/ adj.北极的
By Anne
6
PART
01
Listening
By Anne
7
Listening
Listen and fill in the blanks.
1. In 2010, the world’s population was over 7 billion ___________. By 2025, the world may about have _____________ people.
2. About ____________of the world is land.
3. Oceans cover about ____________of the earth’s surface.
4. Antarctica is ________ _____snow and ice all year round.
5. The earth is our home. It must be ________well for our children.
in total
8 billion
one third
two thirds
covered with
treated
By Anne
8
PART
02
Reading
By Anne
9
Reading-fast reading
Para1. a. Six of the seven continents are good for people to live on
Para2. b. We should treat the earth well
Para3.