形式主语
请教一下老师：
1 It is dangerous playing with fire.
It是形式主语，指代playing with fire
2 This is my first time driving a car.
This也是形式主语指代driving a car吗？？driving a car是动名词短语吗？这句话的语法不理解
3 It is my first time driving a car.
It 是形式主语指代driving a car吗？
最佳答案 2021-11-20 17:00
1 It is dangerous playing with fire.
It是形式主语，指代playing with fire
【答】这里的It是形式主语，指代playing with fire。
2 This is my first time driving a car.
This也是形式主语指代driving a car吗？？driving a car是动名词短语吗？这句话的语法不理解
【答】这里的This是指示代词作主语，不是形式主语，因为This不能充当形式主语。my first time driving a car = my driving a car for the first time.
3 It is my first time driving a car.
It 是形式主语指代driving a car吗？
【答】这里的It 不是形式主语。
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