高中英语复习北师大版《透过语篇填过看词性转化》课件%2B学案
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透过语篇填过看词性转化.pptx
　　透过语篇填空看词性转化
　　Subject:透过语篇填空看词性转化
　　Teaching Goals: Let students be familiar with common prefixes and suffixes
　　Teach students a good way to do word spelling
　　Important points: the meanings of different prefixes or suffixes
　　Difficult points: How to fill in word spelling with correct forms
　　Teaching tools: Exercise paper，PPt
　　Teaching methods: team-work, games
　　Teaching process:
　　Step 1：Leading-in
　　Fill in the blanks with the proper forms of the word
　　He was                      in the war, so he was               to do some work. However, he didn’t allow his              to prevent him from doing a job because he had a strong communication                    . (able) 
　　Brainstorm: Can you think up any other words with the prefix dis-、un-?
　　Step 2：Expanding & Conclusion
　　Can you find the prefix(前缀) of the following words? Do you know the meaning of the following prefixes?
　　non¬smokers
　　inconvenient
　　imperfect
　　misunderstand
　　illegal
　　conclusion：Prefixes(前缀) change the meaning of the words.
　　【即时训练】Write out the original words.
　　1.unchanged adj.    _______          2.dislike  v.    __________     
　　3.impossible n.    _________         4.unfit adj.__________
　　5.misunderstand n.          
　　Step 3：let’s challenge
　　summary:常用的名词后缀有：
　　____________________________________________________________________________.
　　____________________________________________________________________________.
　　Brainstorm: Can you think up any other noun suffixes（后缀）? （work in groups）
　　Step 4：let’s find similarity
　　enrich     soften   national    broaden  acceptable     peaceful
　　personal   healthy  humorous  meaningful   dangerous   comfortable
　　enlarge    lucky
　　summary:常用的动词、形容词后缀有：
　　________________________________________________________________________________________________________________________________________________________.
　　conclusion：Suffixes(后缀) change the speech(词性) of the words.