6.as
常用于 the same--- as,
such ---as, as --- as , so --- as
但 as 引导从句表示内容与主句相似,同类;that 表示内容与主句同一,同一事物。
This is the same
bag as I lost yesterday. This is the same bag that I lost yesterday.
Such --- as 可以放在一起以such as 形式放在名词后。
She collected a
great many stories such as a child of four could understand.
另外as 可以代表整个内容,前后都可以,但有逗号分开。
As we have seen,
oceans cover more than 70 % of the earth.
As is known to all,
Taiwan is a part of China.
翻译为 "正如---"。
关系副词
1. When
(表示时间,时间状语)
Time 是先行词,前面有序数词和last 修饰,用that或什麽都不用
This is the last
time that I shall give a lesson.
The first film I
saw him was in 1986.
2. where (表示地点,地点状语)
3. why(表示原因,原因状语, 先行词reason)
非限制性定语从句
1. 从句与先行词关系松散。
2. 如果定语从句省略仍然完整。
3. 有逗号。
4. 关系代词不用that, 人(who, whom)物(which)。
5. 关系副词 when, where, 但why通常是限制性定语从句。
6. 可以用来修饰整个主句的意思,which不能提前放在句首。