One should learn to think of others. Have you any bookmarks ?
No, I don’t have any bookmarks. I have some questions to ask.
some可用于疑问句中,表示盼望得到肯定的答复,或者表示建议,请求等。
Would you like some bananas ? Could you give me some money ?
2. each和every:
each强调个别,代表的数可以是两个或两个以上。
Each student has a pocket dictionary.
Each (of us) has a dictionary.
We each have a dictionary.
every强调整体,所指的数必须是三个或三个以上。
Every student has strong and weak points.
Every one of us has strong and weak points.
3. none和no:
no等于not any,作定语。
There is no water in the bottle.
none作主语或宾语,代替不可数名词,谓语用单数,代替可数名词,谓语单复数皆可以。
How much water is there in the bottle? None. None of the students are (is) afraid of difficulties.
4. other和the others、another:
other泛指“另外的,别的”常与其他词连用
the other day, every other week, some other reason,
no other way,
the other特指两者中的另外一个,复数为the others。
He held a book in one hand and his notes in the other.
5.all和both,neither和either:
all表示不可数名词时,其谓语动词用单数
both和all加否定词表示部分否定
全部否定用neither和none
All of the books are not written in English.
Not all of the books are written in English.
Both of us are not teachers.
Not both of us are teachers.
Either of us is a teacher.