Unit 4 Do it yourself - Study skills教学目标1.知识目标：学习词汇：certain, active, possible, tidy, uncertain, inactive, impossible, untidy, incorrect, impatient学习词组：tidy up, be usual for, be possible to do sth. all over the floor, right now学习句子：Its usual for me to stay at home all day,Its possible to sleep with al that noise.Im certain that I can fix it myself.Things are all over the floor.Ill tidy up right now.2. 技能目标：1)学习用否定前缀un-、in-和im-构成反义形容词的方法。2)学会使用否定前缀un-、in-和im-的形容词表达否定含义。 教学重点学习用否定前缀un-、in-和im-构成反义形容词的方法。教学难点学会使用否定前缀un-、in-和im-的形容词表达否定含义。学法指导比较分析法。教学过程Step1：预习指导与检测 见导学案Step2：展示目标 见导学案Step3：课堂导学与互动 任务一：Lead-inAsk： How do you think about do-it-yourself? I think do-it-yourself is important It is really interesting to do it. I dont think do-it-yourself is meaningful. I think do-it-yourself is important. It isnt really interesting to do it. It is really uninteresting to do it.任务二PresentationA prefix is a letter or a group of letters that add to the front of a word to form a new word.任务三The prefixes un-,in- and im-One of the most common prefixes for adjectives is un-. It means “not”. We add it to some adjectives to give them the opposite meaning.certaincomfortableimportantinterestingfriendlywelcomemannedWe can use some other prefixes, such as in- and im-, to form new words with the opposite meaning.activecorrect patient possibleperfectpolitepersonal前缀dis-,dis- “不”、“无”，加在某些动词或名词前构成反义词。likeagreeHonestAppearorderbelieveability任务四Add the correct prefixes to some of the adjectives so that all the sentences make sense. (Page51) Check the answers with them. Step4：总结提升Step5：当堂反馈见导学案Step6：布置作业1.Copy new words and phrases.2.Recite the dialogue3. Finish the exercises in your exercise book .再备教学反思