人教版(2019)必修第三册Unit 4Space Exploration 听力课课件(21张ppt)

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名称 人教版(2019)必修第三册Unit 4Space Exploration 听力课课件(21张ppt)
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资源类型 教案
版本资源 人教版(2019)
科目 英语
更新时间 2022-10-15 18:51:43

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(共21张PPT)
by Stephen William Hawking
Remember to
look up at
at your feet.
and not down
the stars
theoretical physicist
cosmologist
Remember to look up at the stars and not down at your feet.
the earth
planets
solar
We live on _________ .
It’s one of the _______ of the _____ system.
/ m kj r /
/ vi n s/
/ d u p t /
/ s t n/
/ j r n s/
/ n ptju n/
Put these paragraphs in the correct order.
The answer is
E B A D C
how life began on the earth
listen, draw and talk
Listen carefully and tell me what you heard
No one knows exactly how the earth ___________. According to a widely accepted theory, the universe began with a_____________.
began
“Big Bang”
read, draw & talk
“Big Bang” exploded loudly and produced water vapour and many gases making the earth’s atmosphere. As the earth cooled down, water ______________.
appeared
It was the presence of ___________ that allowed the earth to dissolve harmful gases and acids into the oceans and seas, which made it possible for ________ to develop.
water
life
After the _________________ of small plants, green plants began to grow on land, followed by land animals. Later, dinosaurs developed and suddenly _________________. After that, mammals came into being.
appearance
disappeared
Finally, __________ appeared and put too much carbon dioxide into the atmosphere, making the earth too ______to live on.
humans
hot
part 1 (para 1, 2) ______________________________
the development of the earth
part 2 (para 3, 4, 5) ______________________________
the development of life
“What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.”
The word “allowed” is closest in meaning to which of following
accept
let somebody go into
make it possible
“The human race should not have all its eggs in one basket, or on one planet. Let’s hope we can avoid dropping the basket until we have spread the load(负荷).”
assignment
Read the quotation from Stephen Hawking and write down your own sentence about the future of life on the earth.
thank you