I have two sisters. ______ of them are doctors.
A. All
B. Every
C.Each
D. Both
I have two sisters. ______ of them are doctors.
A. All
B. Every
C.Each
D. Both
D
both表都,一起的意思,一般用法是both....and...表2者之间
all表所有,都,一起,与both不同的是,这个是表2者以上的时候用
Both Tom and Lucy are students.他俩都是学生
All of them are students.他们那群>=3都是学生.
each和every都有“每个”的意思,但侧重点不同,each着重个别的情况,every着重全体,有“所有的”意思。
eg. She knows each student of the class. 她认识班级中的每个学生。
She knows every student of the class. 她认识班级里的所有学生。
2. 从词性上区别:
each 可以做形容词,也可以做代词(可与of 连用),可以用作主语,宾语,同位语。作主语时,谓语动词用单数形式。
eg. Each of them doesn't smoke. (主语)
The teacher asked each student . (宾语)
We each have a holiday. (同位语)
every 只作形容词,只能与名词连用。
eg. Every boy has a book on the desk.