英语单词前用a和an
英语单词前,在什么情况下用a/an 既然又说到 phonics ,就顺便再把单词前a/an的用法也一起说一说。
在单词前用a/an的规则大家都很清楚。在辅音前用 a, 在元音前用an. 有些学校学的是国际音标,经常会考学生在什么单词前用a ,在什么单词前用an. 是元音还是辅音,不是看字母,而是看字母的读音的音标。
对于没学音标,只学phonics 的孩子,可以记住下面几条规则:
"A" goes before all words that begin with consonants.
* a cat
* a dog
* a purple onion
* a buffalo
* a big apple
With one exception: Use "an" before unsounded h.
* an honorable peace
* an honest error
"An" goes before all words that begin with vowels:
* an apricot
* an egg
* an Indian
* an orbit
* an uprising
With two exceptions: When u makes the same sound as the y in you, or o makes the same sound as w in won, then a is used.
* a union
* a united front
* a unicorn
* a used napkin
* a U.S. ship
* a European
* a one-legged man
对于a or an before Abbreviations 记住 vowel-sounding letters (take "an"):
A E F H I L M N O R X 当它们念做字母时,用an, 念做单词时,根据单词读音选择. an NBC spokesman(N-B-C 一个一个字母读出来)
a NY spokesman(NY 读成New York)
a NASA science lab (NASA 读的时候合成一个新单词)
a FAQ
其实记住这些vowel-sounding letters很容易,A E I O 四个元音字母,加上R ,其他的几个字母F H L M N S X在读的时候都有一个共同的开头音节在里面。