动词ing开头为什么要用has 比如working at home has some advantages.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/08 23:56:16

动词ing开头为什么要用has 比如working at home has some advantages.
顺便带些has have 变化用法的回答,

从英语语法理论上讲,动名词(即动词的ing形式）作主语算第三人称单数.如果谓语是有或完成之类就用has.
如：Playing football is my hobby.
Planning so far ahead has some disadvantages.
have当"有"讲,主语是第三人称单数用has,其他人称、数均用have.
have用于完成时也是如此.
如：I have a brother,but my wife hasn't.
I have been to Beijing twice,but she hasn't.

动词ing开头为什么要用has 比如working at home has some advantages. He has been working here.为什么要用working? mary has some pets at home 改为否定句为什么has/have been.后面的动词要是ing形式? tom has dinner at home. I like doing some reading at home.这里为什么do+ing.而read也加ing 开头动词为什么要＋ing?为什么开头有些动词不加ing? with so much homework___,Tom has to stay at home.为什么用to do 不 Min has breakfast at home.要改一般疑问句 She has supper at home.( 用 now 改写句子) 句型转换,每空一词.1.Jill has some hair clips at home.(改为一般疑问句） MARY HAS TO DO SOME CIEANING AT HOME ON WEEKENDS（改为一般疑问句,并作肯