1、不定冠词的用法,Unit 1 Making friends,一什么是冠词冠词是虚词,本身不能单独使用,也没有词义,它用在名词的前面,帮助指明名词的含义。英语中的冠词有三种,一种是定冠词(the Definite Article : the ),另一种是不定冠词(the Indefinite Article: a和an ),还有一种是零冠词(Zero Article)。不定冠词用在单数名词前,表示泛指;定冠词用在名词前,表示特指。如: a book an egg the elephant 一本书 一个鸡蛋 那只象,Find a/an,Find a/an in the passage on pag
2、e 3 and try to work out the rule.,Grammar,1.以发音为判断原则:,发元音的单词前用an。,发辅音的单词前用a。,(不定冠词),2. 不定冠词表示泛指,意思是“一”。,一般情况下,就是元音字母前用an,辅音字母前用a,26个字母中,a、e、i、o、u为元音字母,也就是这几个字母开头的单词前一般用an,除了这5个元音字母,其余的为辅音字母,前面一般情况用a.1. _a_ useful book虽然首字母是元音字母,但发音却辅音2. _an_ hour首字母是元音字母,但发音却以辅音开头3. _an_ honest boy首字母是元音字母,但发音却以辅音开头
3、4. _a_ university虽然首字母是元音字母,但发音却辅音5. _a_ uniform虽然首字母是元音字母,但发音却辅音6. _an_ European country首字母是元音字母,但发音却以辅音开头7. _an_ s in student8. _a_ unit虽然首字母是元音字母,但发音却辅音,【易错点】:有些名词虽然首字母是元音字母,但发音却以辅音开头。(错)an university (正)a university一所大学(错)an uniform (正)a uniform一套制服有些名词虽然首字母是辅音字母,但名词发音却以元音开头,这时名词前要用an。(错)a hour
4、(正)an hour(错)a honest boy (正)an honest boy一个诚实的孩子,We can use a or an like this:,Read the words,1.( ) old woman 2.( ) useful dictionary3. ( ) honest boy 4.( ) elephant6. ( ) ink-bottle 5. ( ) one-eyed exercise book 7.( ) yellow shirt8. ( ) history book 9.( ) umbrella10.( ) English song,1. -Whats this
5、 in English? -Its _a_ bus. 2. Whats that in English? -Its _a_ pen. 3. Is this _an_ apple? -No, its _an_ egg. 4. It is _a_ cake. 5. Is that _a_ pencil? -No, its _an_ eraser. 6. Thats _an_ English car. 7. It is _a_ phone. 8. Whats that in English? -Its _a_ car. 9. I am _a_ teacher.10. This is _an_ old
6、 desk.,Grammar exercise,B1 Some students are talking about their dreams. Complete the sentences below with a or an.,My dream is to be _ Art teacher.,My dream is to be _ scientist.,a,an,1,2,I want to be _actor in films.,I want to be _engineer.,My dream is to be _ basketball star.,I want to be _ nurse.,a,an,an,a,3,4,5,6,