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1. To know how to use a, an and the.
2. To use prepositions of place properly.
IV. Teaching procedures
A Using a, an and the
Step 1 Lead-in
T: Boys and girls. Look at the colourful picture, guess: What season is it about?.
Where is spring? Spring is in our school.
【设计意图：通过观察图片，引入spring这个话题主线，为本节课做铺垫。】
Step 2 Presentation
1. Indefinite article and definite article.
T: In English we call a, an and the articles. There are two types of articles. A and an are the indefinite article. The is called the definite article.
2. A and the.
T: When should we use the indefinite article? And when should we use the definite article? Discuss with partners.
3. Work out the rule.
T: We use a when we mention a person or thing for the first time. We use the before a noun when the person or thing is mentioned again, or when we are talking about a specific person or thing.
【设计意图：由描述图片的句子引入冠词，学生观察讨论并总结其用法。】
Step 3 Practice
1. Complete a passage with a, an., the.
2. Look at the pictures and choose flowers.
3. Fun in the zoo.
Where is spring? Spring is in the zoo.
【设计意图：通过巩固练习，进一步体会，理解a，a，the的使用区别。】
B Prepositions of place
Step 1 Lead-in
Complete a letter written by Daniel.
T: Pay attention to the circled words. They are prepositions of place.
Step 2 Presentation
Learn different prepositions of place.
Play a game.
Where is the earthworm?