发布者：郭贤成 发布时间：2017-12-15 浏览数( 0) 【举报】
Step一.设疑自探 ( 5mins )
学生发现的问题：（叫学生写在黑板上）
问题一；Why does Helen look worried?
问题二；Why does Li Hong feel lonely？
问题三：对话中出现哪些be+形容词+介词的短语？
问题一答案：Because Li Hong is so unhappy.
问题二答案 1. Because she did badly in the English exam.
2 . Because she is new here .
3. Because she is quiet and shy.
问题三答案；短语be+ adj.+ Prep.
对话中出现 be strict with sb. , be worried about ,
可以总结归纳出：be good/bad at； be good/bad for；
be worried about； be pleased with； be afraid of；
be sorry for； be interested in； be angry with； be fond of； be popular with； 等等
Step二。解疑合探 ( 10mins )
（叫学生演板写在黑板上）
Picture2 :Tthe boy gets very angry because his pen is lost.
Picture3 :The mother seems worried because her son is ill.
Picture4: The children are excited because the movie is wonderful.
Picture5:
The boy looks very tired because he has too much homework to do .
Picture6:
The girl feels very sad because all the buildings in her school fell down.
Step三 质疑再探 ( 10mins )
（叫学生演板写在黑板上）
Because 引导的原因状语从句
• because 表示的原因是必然的因果关系，语气较强，通常放在主句之后。 通常用来回答 why提出的问题
• because of不能直接引导从句或后接that引导的从句。后接名词，代词或动名词 。
• 语气上由强至弱依次为because→since→as→for.
• as 表原因后可跟名词短语或句子,但它不能用于句首.
because表原因后只可跟句子,它可用于句首或句子中间.
because of 后只可跟名词短语来表原因,可用于句首或句中间.
for只可跟名词短语,也只可用于句子中间.
Step四 运用拓展 ( 5mins )
答案略