内容正文:
考点一 语法一致原则
语法一致即单数主语需要用动词单数形式,复数主语需要用动词复数形式。
1. 由and或both…and…连接起来的合成主语后面,谓语动词用复数形式。
Eg:Tom and Tim are both pupils.
Both she and he are Young Pioneers.
2. 不定代词either,neither,each,one,the other,anybody,anything,someone,something,everyone,everything,nobody,no one,nothing等作主语时,谓语动词用单数形式。
Eg:Everyone is ready for the exam.
——Which would you like,tea or coffee?
——Either is OK.
3. 由each…and each…,every…and every…,no…and no…作主语时,谓语动词用单数。
Eg:Each boy and each girl is given an apple.
No air and no water is on the moon.
4. 主语后接with,along with,together with,as well as,including,besides,except,but等短语时,谓语动词的数由主语的单复数形式决定。
Eg:The mother with her three sons is watching TV.
5. a number of+名词复数作主语时,谓语动词用复数,意为“许多的,大量的”。the number of+名词复数作主语时,谓语动词用单数,意为“……的数量”。
6. a lot of(lots of),plenty of,most of+名词,分数或百分数+名词作主语时,谓语动词的单复数由名词决定。如果名词为不可数或单数,则谓语动词用单数,如果名词是可数名词复数,则谓语动词用复数。
Eg:Lots of people have been there.
Plenty of water is needed in this area.
Two thirds of the earth is covered with water.
7. 由a pair(a kind…) +of+复数名词作主语时,谓语动词用单数;pairs(kinds…)+of+复数名词作主语时,谓语动词用复数。
Eg:The pair of shoes is expensive.
Twenty pairs of shoes are made every day by her.
8. 不定式或动名词或从句作主语,谓语动词用单数。
Eg:Doing eye exercises is good for your eyes.
9. 只有复数形式的名词如clothes,trousers,shorts,pants,glasses作主语时,谓语动词用复数。
eg:My clothes are wore out.
考点二 意义一致原则
意义一致又叫概念一致,即谓语是单数还是复数要看主语所表达的概念。
1. 由and连接的两个名词作主语时,如果是同一概念(and后面无冠词),谓语动词用单数。
Eg:The teacher and writer is going to give us a talk.(老师兼医生)
2. 金钱,时间,距离,重量作主语时,谓语动词用单数。
Eg:Two months is a long time.
3. 集体名词如family,team,group,class等表示整体概念时,谓语动词用单数形式;如果表示集体中的成员,则谓语动词可以用复数形式。
Eg:His family is a big one.
His family are watching TV now.
4. people,police等集合名词作主语时,谓语动词用复数形式。
Eg:The police are leaving for Pairs.
5. The+姓氏复数表示“一家人”或“夫妇二人”,作主语时,谓语动词用复数形式。
Eg:The Greens are friendly to me.
6. the+adj.表示一类人,作主语时谓语动词用复数形式,如the poor,the rich,the young,the old。
Eg:The rich aren’t always happy.
7. 表学科的以s结尾的名词作主语时,谓语动词用单数,如:politics,maths,physics等。
Eg:Physics is an important subject i