郑多燕瑜伽减肥视频下载:it 和 that

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The waterin the lake is cleaner than ( ) in the river.
A.it B.that

选哪个,为什么
为什么不选IT

1. it代替「全同的」一个事物,例如:
There is a watch on the table; it is mine.
而they代替「全同的」复数人事物,例如:
There are two boys playing on the playground; they are Mary's brothers.
2. that 代替「同类的」单数人事物,避免同一句内名词重复,例如:
The nose of the elephant is longer than that of the cat.
上句的that 代替the nose。你的问题中,that 代替the water。
而those代替「同类的」复数人事物,避免同一句内名词重复,例如:
The ears of the elephant are bigger than those of the cat.
上句的those代替the ears。
3. it或they后面不能接限定片语,故it in the water 无意义。
4. one及ones也可代替重复名词,但不同以上所述,请自行研究。

B
that是代名词,指“那边”的水。

that 指water(英语的习惯),复数用these代替

B
that是代词`代指 water.

B