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译林2003课标版《Grammar and usage： Overview of adverbial clauses》新课标PPT课件优质课下载
二、不定冠词
1.不定冠词有a,an两种形式,当紧跟着冠词的第一个音素为辅音音素(注 意:不是辅音字母)时用a;当紧跟着冠词的第一个音素为元音音素(注意: 不是元音字母)时用an。如:
a university,a useful animal,a one-eyed dog,a European car,an hour,an honest boy,an X-ray,an ugly man,an honor等。
题组训练·冠词填空
③I earn 10 dollars an? hour as a? supermarket cashier on Satur- days.
④The teacher asked us to write an? 800-word-long composition.
2.表示one,the same或every的意思。如:
They are of an age.(=the same)他们年龄相同。
I will return in a day or two.(=one)
我将在一两天内回来。
题组训练·冠词填空
⑤The Spring Festival is a? special holiday for Chinese people when the whole family are supposed to get together.
⑥They are twins,so they are of an? age.
3.不定冠词的特殊位置
1)“so/as/too/how/however+ adj.+a/an+单数名词”。如:
This is so interesting a film that we all want to see it.
这部电影很有趣,我们都想去看。
He is as good a student as you(are).
他和你一样是个好学生。
He is too young a boy to join the army.
这个男孩太小了,他参不了军。
How clever a boy he is!(=What a clever boy he is!=How clever the boy is!) 这个男孩多聪明呀!
However clever a man he is, he can't learn English well without enough practice.
一个人不管有多聪明,没有足够的练习是学不好英语的。
2)quite,rather与单数名词连用且名词前有形容词修饰时,其顺序为: “a+ rather+形容词+单数名词”或“rather/quite+ a/an+形容词+单数名 词”。如: