一则征聘广告的结尾这样写：
“suitable candidates will be offered a very attractive terms which cannot be refused.”
这句话的意思，一目了然，可惜其中有个不该有的语法错误；那就是“a very attractive terms”中的“terms”是个复数名词，不需要有冠词，和不定冠词“a”连用，更是不合语法规则。
为了避免同样的错误出现，现在试把不需要冠词的场合列下，以作参考：
㈠复数名词，如：
1. doctors cure patients.
2. axes are tools for cutting wood.
3. those people are teachers, not students.
㈡物质名词，如：
4. gold is precious.
5. air is indispensable to animals.
6. electricity is a form of energy.
㈢抽象名词，如：
7.
unity
1
is strength.
8. knowledge is power.
9. samson is a man of bravery.
㈣有关餐食的名词，如：
10. dinner is ready.
11. after lunch, you may take a nap.
12. what do you eat for breakfast?
㈤有关四季的名词，如：
13. i like autumn most.
14. do you have to teach in summer?
15. winter is over; will spring be far away?
㈥有关游戏和运动的名词，如：
16. fandi can play soccer very well.
17. do yo like to play chess?
18. is bridge a popular game here?
㈦有关疾病的名词，如：
19. old people tend to suffer from
diabetes
2
.
20. many women are
inflicted
3
with
rheumatism
4
.
㈧有关学科或带“－ism”后缀的名词，如：
21. mathematics and physics are difficult subjects.
22. which do you prefer,
imperialism
5
or communism?
㈨在“by + 交通工具”的片语里，如：
23. shall we walk or go by bus?
24. the tourists came by plane.
25. do you like to travel by land or by sea?
㈩关于“人、节日、地理、建筑物、语言”等的专有名词，如：
26. tony wants to see susan.
27. christmas is a widely
celebrated
6
festival.
28. europe is more advanced than africa.
29. do you know where buckingham palace is?
30. is japanese similiar to chinese?
上述是无须冠词的例句，但当专有名词之前有修饰语时，可以用定冠词（例(31)－(32)）；当抽象名词被形容词、短语或分句修饰时，也可以有适当的冠词（例(33)－(36)）：
31. caesar was an ancient hero. do you admire the great caesar and his deeds?
32. we enjoy reading the great works written by the
immortal
7
shakespeare.
33. a little knowledge is a dangerous thing.
34. the wisdom of solomon was recorded in history.
35. tom showed a courage
worthy
8
of special mention.
36. i find it hard to forget the
generosity
9
with which david treated me.