Unit one
How To Improve Your Study Habits
 
词汇短语 1 - 2 - 3
 

(三)语法重点

1.限定词在句子中的位置:
限定词按其不同的搭配,位置可分为前、中和后位三类,在句子中的顺序为前位、中位和后位。


前位限定词有:all, both, half, double, twice, three times, one-third, two-fifths, 等。
中位限定词有:a/an, the, this, that, these, those, my, your, etc., John's, some, any, no, every, each, either, neither, enough, much, what (ever), which (ever),whose 等。
后位限定词有:one, two, first, second, many, little, few, several, more, less, last, next, other, another, such 等。
一个名词中心词前不能并用两个前位限定词或两个中位限定词,但后位限定词不受此限制。如:不能说my that book, 而是 that book of mine.

2.主谓一致:

1)集合名词做主语时,若指一个整体,谓语动词为单数;若指其中各个组成成员(分子),谓语动词则为复数。
army, audience, hand, board, class, club, committee, company, congress, crew, firm, group, government, majority, minority, party, police, public, 等。
2)the rest (of), half (of), most (of) one third (of) 等 + 名词作主语时,其谓语动词与这个名词的人称、数一致。
3)many a + 单数名词或 more than one + 单数名词作主语时,其谓语动词为单数。
4)连接词 as well as, together with, along with 等连接的两个主语,谓语动词的数与前一个主语一致。
5)用 either…or, neither …nor, or, not only …but also, not …but 连接两个主语,谓语动词和靠近的那个主语一致。
6)none 作主语时,其后可接动词单数形式,也可接动词复数形式。