英语主谓一致的知识网络之逻辑一致
1. what， who， which， any， more， all等代词可以是单数，也可是复数，主要靠意思来决定。
Which is your bag？Which are your bags？
All is going well.  All have gone to Beijing.
2. 表示“时间、重量、长度、价值”等的名词的复数作主语时，谓语动词通常用单数形式，这是由于作主语的名词在概念上是一个整体。
Thirty minutes is enough for the work.
Ten miles is too long.
3. 若主语是书名、片名、格言、剧名、报名、国名等的复数形式，其谓语动词通常用单数形式。
“The Arabian Nights” is an interesting story-book.
4. 表数量的短语“one and a half”后接复数名词作主语时，其谓语动词可用单数形式。
One and a half apples is left on the table.
5. 算式中表示数目（字）的主语通常作单数看待，其谓语动词采用单数形式。
Twelve plus eight is twenty.

Fifty-six divided by eight is seven.

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6. 一些学科名词是以 –ics 结尾，如：mathematics，politics，physics 以及news， works等，都属于形式上是复数的名词，实际意义为单数名词，它们作主语时，其谓语动词要用单数形式。
The paper works was built in 1990.
I think physics isn‘t easy to study. 
7. trousers， glasses， clothes， shoes，jeans 等词作主语时，谓语用复数，但如果这些名词前有a（the） pair of等量词修饰时，谓语动词用单数。
My glasses are broken. 
The pair of shoes under the bed is his. 
8. “定冠词the + 形容词或分词”，表示某一类人时，动词用复数。
The old are taken good care of.
9. a (large) quantity of 修饰可数或不可数名词, 作主语时,谓语动词用单数。
A large quantity of people is needed here.
注意：quantities一般用复数。
Quantities of food (nuts) were on the table.
10. a great deal of, a large amount of 修饰不可数名词, 作主语时, 谓语动词通常用单数; large amounts of 修饰不可数名词, 作主语时, 谓语动词通常用复数。
A large amount of (A great deal of) damage was done in a very short time.
Large amounts of money were spent on the bridge.

1. It is important to remember that success _______ a sum of small efforts made each day and often ______ years to achieve.
A. is; takes   B. are; takes      C. are; take     D. is; take
2. All we need ________ a small piece of land where we can plant various kinds of fruit trees throughout the growing seasons of the year.
A. are                  B. was           C. is                   D. were
3. The famous musician, as well as his students, _______ to perform at the opening ceremony of the 2012 Taipei Flower Expo.
A. were invited          B. was invited          C. have been invited       D. has been invited
4. The university estimates that living expenses for international students ________ around $8,450 a year, which ________ a burden for some of them.
A. are；is   B. are；are   C. is；are       D. is；is
5. Generally, students’ inner motivation with high expectations from others ______essential to their development.                                       
A. is                  B. are                  C. was                   D. were

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