高考问答大s蓝正龙什么时候分手:英语问题
来源：百度文库 编辑：高考问答 时间：2024/04/29 02:13:08
用动词作主语什么时候要加ing,是不是不用加?
动词作主语可用v.ing 或 不定式
如:Reading in the sun is bad for your eyes.
To read in the sun is bad for your eyes.
还可用it 作形式主语,达到平衡句子的目的
It's bad for your eyes to read in sun.
当然不能不加了,用动词的相关形式做主语,只能是v+ing 或者是
to +v 构成不定式.
To play football is the most exciting thing in the world.
Playing football is the most exciting thing in the world.