介绍:
1.cause v/ n
lesson 53 hot snake
Since then , they have been trying to find out how the fire began.
What caused the fire?
What is the cause of the fire?
How the fire began ?
中考题：
What kind of people can cause hill fires ?
Many accidents _______ by careless drivers last year.
A. are caused B. were caused C. have caused D. will cause
cause and effect
2.celebrate v ---- celebration n.
The students ______ the Art Festival when I passed their school .
( celebrate )
3.center/ centre ---central
center of city / center of economy , politics and culture .
beijing is the centre of politics and culture . shanghai is the center of economy
central America
4. century n. 100years
21th century --- the most popular English newspaper
lesson 62 after the fire
In place of the great trees which had been growing there for centuries , patches of green had begun to appear in the blacken soil.
5. certain adj :
I am certain that he will come.
I am sure that he will come .
I am certain I will pass the exam .
adv ： certainly - of course .
replace --yes. :
May I use your dicitionary ?
Never mind / you are welcome / It doesn't matter / certainly Here you are .
Do you mind my using your bicycle ?
Yes. use it . No , don't use it . of couse , please . of course not .
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每周一至周五（法定假日无）
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