(1)特指上文提到过的特定的人或事物或双方都明确的人或事.
I have a car. The car is blue.
the sky,the earth, the solar system (太阳系),
the universe(宇宙)
The earth goes round the sun.
the poor, the wounded
Life is like an ocean: only the srong-willed can reach the other shore.
①序数词前、表示“再、又
It's the second time I've read this book.
the more…the more…结构表示越…越
③用于最高级前
He is the most famous teacher in our school.
all the time 一直 by the way 顺便说一下
the day after tomorrow 后天
make the best use of 充分利用