内蒙古乌拉特中旗一中高一英语导学案：Unit 4 Astronomy the science of the stars Period 2（新人教版必修3）.doc

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找出文章中的相关短语
找出文章中重难点句子，并将其翻译
以小组为代表呈现自己的学习成果。
【课前预习】和你的同桌争辩以下短语的意思
circle around______________2. according to…________________ 3. a widely accepted theory
. in time_______________ 5. cool down _______________
6. be fundamental to…_______________________ 7. a chain action__________________
8. make it possible for…to do…_____________________ 9. give birth to…__________________
10. . prevent… from ____________________
【课内探究】
Step 1: 学课文查短语
，最终_______________
____________________

____________________ 。。不同_____________________

13.。。。。。。。运转_____________
15。对。。。感爱好_________________ 16. 将。。。配对_____________________ ，同意 ___________________
，与此相反 ____________ ，制止_______________________ 。。。中逃脱 ______________
，取决于____________ 24. 由于____________
____________ 。。 有害_______________

______________ 30。解释 ____________
，把握，，第一次_______________
。。。和。。之间_____________
35明显 ____________ 。。的基础__________


Step 2: Read each paragraph carefully, then find out the difficult sentences and translate them.(找出并翻译)
According to a widely accepted theory, the universe began with a “ Big Bang” that threw matter in all direction.
________________________________________________________________________________________________________________________________________________________________________
What is was to become was uncertain until between and billion years ago when the dust settled into a solid globe.
____________________________________________________________________________________
The earth became so violent that it was not clear whether the shape would last or not.
____________________________________________________________________________________
What is even more important is that as the earth could down.
____________________________________________________________________________________
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.
____________________________________________________________________________________
This produced a chain reaction, which made it possible for life to develop.
____________________________________________________________________________________
Why they suddenly disappeared still remains a mystery.
____________________________________________________________________________________
They are putting too much carbon dioxide into the atmosphere which prevents heat from escaping from the earth into space.
____________________________________________________________________________________
So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
____________________________________________________________________________________
Many scientists believe the earth may become too hot to live on.
____________________________________________________________________________________
【Homework】 运用文章中词汇，短语，翻译下列句子。
生命开头毁灭在地球上。__________________________________________________________
地球上太热而不能生存。__________________________________________________________
是否我们将依靠于大气。__________________________________________________________
这些阻挡热量升起。______________________________________________________________
为什么他们不来照旧是个谜。_______________________________________________________
依据理论，她是正确的。____________________________________________________________
他把东西投到四周八方。___________________________________________________________