It is as pleasant a day as I have ever spent.
So short a time.
Too long a distance.
c. quite，rather与单数名词连用，冠词放在其后。
但当rather，quite 前仍有形容词，不定冠词放其前后均可。
如：quite a lot
d. 在as，though 引导的让步状语从句中，当标语为形容词修饰的名词时，不定冠词放形容词后：
Brave a man though he is，he trembles at the sight of snakes. 他尽管勇敢，可见到蛇还是发抖。
当名词被比较级形容词修饰时，不定冠词通常置于比较级形容词之后。
2) 定冠词位置
定冠词通常位于名词或名词修饰语前，但放在all，both，double，half，twice，three times 等词之后，名词之前。
All the students in the class went out.班里的所有学生都出去了。
例题解析
1 Mr Li is＿＿＿old worker.
A a
B an
C some
D /
［析］an用于元音音素开始的单词前。
2 English is＿＿＿useful language in ＿＿＿world.
A an, the
B a, the
C the, /
D /,the
［析］因useful的第一个音素是［j］，它是辅音音素。
3 What ＿＿＿interesting book it is?
A a
B an
C the
D /
［析］这是感叹句，因为移到原一般句前面的强调部分中有可数名词book,所以应加冠词，而interesting的第一音素是元音所以要加an。
4 He will be back in ＿＿＿hour.
A /
B the
C a
D an
［析］因hour的首字母h不发音。
1/3 one-third ；3/37 three and three-sevenths.
例题解析
1- How many students are there in your school, Mike?
- There are over ＿＿＿students in our school.
A. two thousands
B. two thousands of
C. two thousand
D. two thousand of
［析］有基数词在前面时thousand，hundred 等词不能加s，也不能加of结构，只有在thousands of时才可以使用。
2John lives on ＿＿＿floor. He doesn't use a lift to go up and down.
A. nine
B. the ninth
C. ninth
D. a ninth
［析］序数词前加定冠词，nine 与ninth 的拼写上有一个e字母相差别。
3Wu Dong won the girls' ＿＿＿race in the school sports meeting last week.
A. 100 metres
B. 100metres
C. 100 metre
D. 100metre
［析］数词、名词、形容词等词用连字符连接成的形容词中，名词都不要加s，如：I have to write a two thousand word report.而且由连字符组成的形容词只能放于名词前，不能放于名词后，作后置定语，或用在be动词后作表语。
4 There are ＿＿＿students in our school.
A. four hundred twenty
B. four hundred and twenty
C. four hundreds twenty
D. four hundreds and twenty
5- How many days are there in a year?
- There are ＿＿＿.
A. three hundreds and sixty＿five
B. three hundreds sixty＿five
C. three hundred and sixty＿five
D. three hundred sixty five
6．We have learned about ＿＿＿English words.
A. nine hundreds
B. nine hundred
C. nine hundred of
D. nine hundreds of
7．Autumn is ＿＿＿season of the year.
A. third
B. the three
C. thirds
D. the third
8．They are learning ＿＿＿now.
A. Lesson Eight
B. the eight lesson
C. Lesson Eithth
D. Eighth lesson
［析］第几课，第几个门……，在英语中有两种说法，①Lesson Two, Gate Two但要注意每一单词的首字母要大写。
②the second lesson, the second gate 首字母不要大写，并要注意有些缩写的读法。
如:
p. 8-第8页(page eight)
$ 8.50-8.5美元(five dollars and fifty)
66164532－(six, six, one, six, four five, three, two)
9 The boy was so hungry that he ate ＿＿＿.
A. three bowls of rices
B. three bowl of rice
C. three bowl of rices
D. three bowls of rice
［析］rice 是不可数物质名词，而bowl是可数名词。
10．There are ＿＿＿months in a year.
A. twelve
B. twelf
C. twelveth
D. twelfth
1.We had learned ___English words by the end of the year.
a. one thousand two hundred and twenty-two
b. a thousand and two hundred twenty-two
c. one thousand two hundreds twenty two
d. a thousand and two hundreds twenty two
2.“202”is ____.
a.two hundreds and two
b.two hundred two
c.two hundred and two
d.two hundreds two
3.There are ____days in a year.
a.three-hundred and sixty-five
b. three hundred and sixty-five
c.three hundred and sixty five
d. three hundred and sixty-five
4.He always wanted to have ___of books and he has recently bought four ____.
a. hundred, hundred
b. hundreds, hundred
c. hundreds, hundreds
d. hundred, hundreds。