语法课全球变暖同位语从句

试讲稿（自己原创，仅供参考，请勿传播，感谢大家）：Class begins.Good afternoon,boys and girls.sit down, please.Firstly,welcome back to school after Labor Day,so Where did you go on vacation?Tiffany:Thailand?Must be very hot now,right...Kevin:went to Japan.Really?Have you experienced any special thing there?you found there are so many earthquakes in Japan? I am sorry to hear that.As we all know,earthquake is a natural problem...Today we are going to learn sth about human problem.now please read the short text and tell me what it talks about.2mins for you.Let’s start.ok.who can me the main idea?ok,John,you,please:the earth is becoming warmer and it is human activity that caused it rather than a random but natural phenomenon.Do you agree with him?Yes,brilliant...We all know “it is that”here is an emphatic sentence,right?Yeah,It emphasizes on “human activity”.But How about another two that?let’s write it down and have an analyzation.Please look at the blackboard.that part:the earth is becoming warmer and this part from “it is to phenomenon “are two complete sentences,do you agree?Yes,so we can know this word “and”connects two complete sentences.Then they are behind the that,so actually they are two complete clause leading by that.And doubt here is an abstract noun.Such clause we call it appositive Clause,It is what we will learn today!In the appositive clause,The antecedent is usually an abstract noun,such as doubt/idea/fact/question/decision and so on.And the clause is used to explain the abstract noun,but what you should pay more attention to is the clause must be a complete one,and that here can’t be omitted.Clear?Good.Now practice time for you.Who can use these abstract nouns to make some sentences using by appositive clause?3mins for you.You can discuss with your desk mate.Let’s start...ok,time’s up.Which pair would like to have a try?Ok,Sophia and your partner:The fact that you haven’t enough time to do the homework is simply unbelievable.Amazing! You made a great sentence...Anyone else?ok,Catherine’s pair:The idea that you can do this work without thinking is quite wrong.Yes,I agree with you.Excellent!Ok,It seems that all of you have mastered this usage of appositive clause.Now please open your book and turn to page 112,let’s do the exercises.Now I’ll divide you into four groups,this is group one,group two...each of you need to do the exercises respectively first and then discuss with your partners in your group.After 8mins,I’ll invite some groups to share your results with us.Let’s start...Now,time’s up.Which group would like to have a try?Ok,group3,ohm,Mary is your representative,so Mary,please.Yes,Good...now Mary has finished.Other groups,Do you all agree with her?NoGroup1 have different answers.Ok,Let’s welcome to the representative of group1.Jimmy,please.Jimmy said exercise 5,That can’t be omitted,is he right?Yes,If we use that in the appositive clause,it cannot be omitted,indeed.And the antecedent must be abstract noun instead of pronoun.Clear?Nicely down!so Group1 you got the whole correct results.and Group3,you also did a good job.Thank you,please sit down.Ok,Boys and girls,how time flies!Let’s conclude what we have learnt today?Who can help me to summarize?Ok,Andy you,please.Yes,we learnt a short text about global warming.And we mainly learnt the usage of appositive clause.Well done!sit down, please.And I hope after class all of you can do more exercises to master this grammar so that you can use it in your writing,speaking and your daily life.Clear?Good!In a few days,there will be Children’s Day,can you use the appositive clause to describe it? You need to have a try,just about 5sentences are ok.and next class, I’d like some of you to share with us.Are you clear?Great!Thank you for your cooperation,let’s call it a day.See you next class!