Question

We can not live without ( ) air。A.the D./

Answer 1

We can not live without ( ) air.
A.the D./

答案：D

解析：air为抽象意义的名词，为不可数名词
中文：没有空气，我们无法生活。

Answer 2

什么都不用填。
We can not live without air.

Answer 3

D,对于自然的事物无需特指。

追问

表示气体不应该加the吗

追答

不加the的情况

1- 专有名词和(第一次使用)一些不可数名词时前面通常不用。如Man needs air and water.
2- 名词前已有指示、物主或不定代词作定语时不用。My pen is much more expensive than yours.

3- 周名,月名或季节名前一般不用。He was born on Monday, February 18,1995.

4- (第一次使用)复数名词表示人或事物的类别时不用。Men are cleverer than monkeys.
5- 三餐饭前不用。We have breakfast at home and lunch at school.
6-节、假日前一般不用。On Children’s Day the boys often get presents from their parents.
7- 球类名词前不用。The children play football on Saturday afternoons.
8-城市的重要、主要建筑物名称前不用。They are now at People’s Cinema.
9- 一些习惯用语中不用。

Answer 4

D
air 和water 等都是不需要特指的。