Unit 20 Humour: 教案1

unit 20 humour: 教案1
ⅰ.teaching goals:
1.talk about humour and comedians.
2.practise saying tongue twisters.
3.express intentions and plans.
4.use the-ing form(1)as the  attribute and object complement.
5.write a funny story or joke in english.
ⅱ.teaching time:
four periods
ⅲ.background information:
one word or phrase may have two or more meanings;words or phrases which have different meanings may have the same or similar sounds.words or phrases like these may sometimes cause confusion  or ambiguity,but they also make it possible to joke or play on words for a humorous effect.
for some reason english has one of the largest collections of jokes based on plays on words.these jokes are often in the form of a dialogue in which one person uses a word in one sense,which the other person understan