[析]a用于以辅音音素开始的单词前,而an用于以元音音素开始的单词前,而不是元音字母开头的单词前。university的第一个音素是[j],所以 用a而不要用an。又如:There is a “n” in the word.是错句,应为:There is an “n”in the word.因字母n的发音的第一个音素是元音。要注意的还有hour因其第一个字母h不发音,所以应该用an hour。例如:
I need an hour to finish the work.
It is a useful dictionary.
It is a European country.
I bought a used car.
[误]I need a umbrella because it looks like raining.
[正]I need an umbrella because it looks like raining.
[析]因umbrella的第一个音素是元音,所以应用an.常用的情况有:an old man, an English teacher, an elephant, an idea, an hour ago, an honest boy…。
[误]“Can you help me” “Sorry, I'm in hurry.”
[正]“Can you help me” “Sorry. I'm in a hurry.”
[析]不定冠词的主要用法如下:
1. 用来表示一类人或事物,如:She is a teacher.
2. 指某一类人或事物中的一个,如:An elephant is bigger than a horse.
3. 泛指某一人或事物,如:A man is waiting for you at the school gate.
4. 相当于“one”的概念,如:I just bought a new dictionary.
5. 其主要的难点是用在固定词组中:
如:have a walk/a rest /a look
又如:in a hurry 匆匆忙忙
make a face 作鬼脸
do somebody a favour 帮某人忙
a number of =many
又如:have a good time (玩得好)
have a cold (感冒)
have a headache (头痛)
have a break=have a rest
[误]I bought the dictionary yesterday. A dictionary is very good.
[正]I bought a dictionary yesterday. The dictionary is very good.
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