青岛工学院是几本:很简单的高一选择题.

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/05 21:48:09
Today our knowledge of food and what it does for our body is far more advanced than _____the old time.
A.不填. B.those C.that of D.this of
为什么不能选A?

C
that来代替前面的东西, 比较的对象是现在我们对食物的了解和过去我们对食物的了解. 而不是现在我们对食物的了解和过去这个时间.
这种用法比较常见:
The weather in Beijing is colder than that of Shanghai.
The number of students in Class One is larger than that of Class Two.

those也可以特指但修饰复数,如:
The gifts given by him is more expensive than those given by her.

填空中的内容应该是:很早以前的那些知识
that 替代的是那些知识,of 是“的”,所以选择 C
that of the old time

A 不填,只能代表的是省略了that(成了that the old time),仍然缺少一个of

than后面要加个指代过去的knowledge的宾语吧,不然句子不完整

B 因为前后指的是同样的东西(knowledge of food and what it does for our body )用that 代指

因为英语的比较语句中, 两个比较的东西要一致
所以,如果选A的话
那么就把the knowledge 和 the old time 并列在一起了 不平衡了
所以加一个that 来代the knowledge 避免重复

c
that 是主语