关于冠词THE的

问题描述:

关于冠词THE的
练习上有一改错题:
The earth turns itself from the west to the east.
答案”应将“from the west to the east”改为“from west to east”
可是在语法书上说“在世界上独一无二的实物或方为等名词前应加定冠词The.
e.g:The sun rises in the east and sets in the west."
所以我很不解,为什么在题目中的west和east要去The?

用在表示方向、方位的名词前
这类词有:
the east东方,the west西方,the south南方,the north北方,the right右边,the left左边
例:The birds are flying to the north.这些鸟向北方飞去.
The moon rises in the east and sets in the west.月亮从东方升起,在西方落下.
The wind was blowing from the south.风从南方吹来.
She lived to the west of the Summer Palace.她住在颐和园的西边.
Walk along the road and take the first turning on the right.沿着这条路往前走,在第一个路口往右拐.
He stood at the back of the door.他站在门背后.
提示
方位词成对使用构成平行结构时,不用定冠词.
例:The river is two thousand kilometers long from west to east.这条河自西向2000公里长.
They traveled through the country from south to north.他们自南向北在这个国家旅行.
记知识要记全呐,同学