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Part One New words and expressions
impressive adj 给人深刻印象的
This is an impressive movie.
I have a very nice impression of Beijing.
He impressed me much by doing so.
steamship 蒸汽轮船
vessel 大木船
dinghy 救生筏（两三人）
lifeboat 救生船
destroyer 驱逐舰
submarine 潜水艇
aircraft carrier 航母
motor ship 摩托艇
She serves as an impressive reminder of the great ships of the past.
Serve as=use as
The room served as our classroom.
