江苏省盐城东台市八年级英语上册《Unit6 A charity walkPeriod5 Grammar(2)》教案.doc

unit6 a charity walkperiod5 grammar(2) 【学习目标】to learn to use it is +adjective +to do to learn to use it is + adjective +for to do 【课前预习】preview it is +adjective +to do it is + adjective +for to do【课堂导学】step 1 presentationpresenting the structure of “it is + 形容词 + of sb. to do sth.”和“it is + 形容词 + for sb. to do sth.”in the text on page 94 there is a sentence: a.it is necessary for you to support and help each other before and during the event. b.it is difficult to walk through eight country parks. c.it is useful to have support teams. (present them on the blackboard.)coming to a summary:在英语里，“it+ be+ adjective+（for someone）+to-infinitive”是个极常用的形容词句型，如： it is possible for you to become a good editor. it is necessary for all of us to abide by the law and order of a country. it is useful for us to learn a second language well. it is fortunate to have such a good boss. it is impossible to teach a language well without a good dedicated teacher. is it right to say one thing but to do another thing? is it comfortable for you to act with a guilty conscience?conclusion:“it is + 形容词 + of sb. to do sth.”和“it is + 形容词 + for sb. to do sth.”这两个句型使用频率都很高，前者表示说话人对客观事物的高兴、惊讶、遗憾、难过等情绪，表现的是人的性格、品质或特征，经常可以转换成： how + 形容词 + it is + of sb. to do sth.! how + 形容词 + of sb. to do sth.! sb. + is + 形容词 + to do sth.或 that is + 形容词 + of sb. to do sth.等；后者表示说话人对客观事件的决断性，根据具体情况可以转换成： to do sth. is + 形容词； it is + 形容词 + that 从句；或sth. is + 形容词 （for sb.）to do.等。如it is possible to work out problem. 有可能解决这个问题。is it necessary to complete the design before national day? (met 89) 在国庆前完成这一设计有必要吗？it is stupid of him to refuse the invitation. 他拒绝了邀请，真是件错事。how stupid it is of him to refuse the invitation!how stupid it is to refuse the invitation!he is stupid to refuse the invitation.it is better for you to live alone for some time. 你单独住一段时间更好。to live alone for some time is better.it is better that you live alone for some time. step 2 practicingnow go on to finish the exercises on page100 and 101, then checking the answers with me.step 3 doing an extension activitycomplete the following sentences with your own ideas:it is difficult/ easy/ exciting/ interesting/ good /necessary /important/ impossible /tough /necessary to it is difficult/ easy/ exciting/ interesting/ good /necessary /important/ impossible /tough /necessary forto step 4 discussingtom 想知道如何学好英语，请用以下句型给他提些建议suggestions:read english at least half an hour every morningdo many exercises to practice englishtalk with foreigners in englishwrite letters to friends in englishread some english books at free timelisten to some english songswatch english programmes on tvrecite your english textssentence structures:1. it is necessary for you to 2. it is important that3. it is useful to4. it isstep 5 homeworka. go over what we have learnt. b. finish off the exercises in the evaluation handbook【当堂检测】一改写句子。1.to sleep for 8 hours every day is very necessary for children. its _ _ _ _ children _ _ for 8 hours every day.2. i feel that reading this book is boring.its _ _ me _ _ this book.3. you cant play with fire (dangerous). its _ _ you _ _ _ fire.4. finish all the homework in an hour is impossible. its _ _ finish all the homework in an hour.5.dont forget to take an umbrella with you. _ _ take an umbrella with you.二、翻译句子。1.对每个人来说，轻视别人是不礼貌的。 its _ _