Althoughweproducecarbonwhenwebreathe，thecarbonweproduceismuchlessthanproducedbyacar．（）A.oneB.theoneC.thatD.those

Question

Although we produce carbon when we breathe，the carbon we produce is much less than ________ produced by a car．（　　）

A. one

B. the one

C. that

D. those

Answer 1

答案：C．本句比较对象为the carbon we produce和the carbon produced by car，为免重复，故使用that来替代the carbon，故为that of men，故答案为D．注意区分：It 特指，代指上文提到的同一个事物．That 特指，单数可数名词或者不可数名词，同类但不是同一个，one泛指，代指单数可数名词．