[误]The little boy and girl walk along the street a hand in a hand.
[正]The little boy and girl walk along the street hand in hand.
[析]这是英语中的习惯用法，如：
bit by bit (逐渐)
day after (by) day (一天又一天)
day and night (日日夜夜)
face to face (面对面)
from A to Z (自始至终)
from time to time (再三)
hand in hand (手拉手)
shoulder by shoulder (肩并肩)
(三) 例题解析
1 Mr Li is___ old worker.
A a B an C some D /
[答案]B.
[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
[答案]B.
[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 /
[答案]B.
[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
[答案]D.
[析]因hour的首字母h不发音。
5 There is ___ map in the classroom. ___ map is on the wall.
A a, A B the, The C a, The D the ,A
[答案]C.
[析]在文章中首次提到某人或某物时用不定冠词，而第二次再提到该物或人时应用定冠词。
6 Look at___ picture! There's___ house in it.
A a ,a B the, the C a, the D the, a
[答案]D.
[析]虽然是第一次提到，但在句中的语言是让对方看某一特定的图画，所以应选择D。
7 There is ___ orange in the bottle.
A a B an C the D /
[答案]D.
[析]这里的orange是指桔汁而不是一个个的桔子。
8 Beijing is ___ capital of our country.
A the B an C / D a
[答案]A.
[析]capital之后有of结构则要用定冠词。
9 If you work hard at English, you'll get ___ “A” in the test.
A an B / C the D a
[答案]A.
[析]因字母A的第一音素是元音。
10 He usually goes to school on ___ foot.
A a B an C the D /
[答案]D.
[析]on foot意为走路上学，是习惯用法。
