【导入新课】

    Free talk

         Show the pictures of animals and things using “a”  and “an”.          

         Ask students to tell the differences between “a”   and “an”.  

【板书课题】Grammar1

【学习目标】

To master the usage of the article.

 To tell the differences between definite and indefinite articles.

【自学指导】

I.  Show the rules of the indefinite articles.

   1. 第一次提到某人或某物时。

     I have a book.

2. 泛指某一类的人或物。

    A panda is very lovely.

     II. Tell the differences between definite and indefinite articles.

     判断一个单词用 a 还是用 an，是根据其读音，而不是根据其首字母。以元音音素开头的词前用“an”，以辅音音素开头的词前”a“。如：an hour, an apple, an elephant, a useful book等。

III.Show the picture of panda and say “Look! Here is a panda. The panda is lovely.”

Another picture of apple. And show the sentences―Look! Here is an apple .The apple is red.

IV.     Ask students to tell the differences between definite and indefinite articles.  

【堂清知识】

Show the rules of the definite articles.

1. 指上文提到过的人或物。如：

     Lucy bought a new bike, the bike is 

     green.

2. 世界上独一无二的事物。如：

     the sun  the moon

3. 谈到彼此都知道的人或事物。如：

     Open the door, please.

     4. 序数词和形容词最高级前。如：

     She is always the first to get to school.

5. 乐器名词前用。如：

     play the piano     play the violin

6. 定冠词与形容词连用表示一类人，加  
     在姓氏前面表示一家人。如：

       the rich 有钱人     the young 年青人

7. 某些专用名词和习惯用语中用定冠

    词。   the Great Wall      by the way

【当堂检测】