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1、Unit 1 cultural heritage SENTENCE PATTERNlearning aims:1)To learn these sentences pattern usage:This is why./This is because/only+时间状语从句用部分倒装 2)To use these sentences pattern correctly.Think and study independently(5)1)To read some sentences on ppt.2)To find all the knowledge points about This is wh
2、y./This is because/only+时间状语从句用部分倒装3)To find the key and difficult points.4)To find the points you dont understand.Read the sentences and translate them1.This is why were here-to observe Tibetan antelops.2.Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and
3、to our planet.Self-learning guidance:(6)1)To make the summary.2)To finish some exercises.3)To mark the check points.4)To check the answers.1.This/That/It is why.意为“这就是.的原因”,why 引导表语从句，表示结果结果。2.This/That/It is because.This/That/It is because.意为“这这/那时因为那时因为.”,because 引导表语表语从句，表示原因原因。拓展延伸：The reason wh
4、y.is that.意为“.的原因是的原因是.”，在这个句型中，表语从句常用 that 引导，而不用because。why 和和 because 引导的表语从句的区别引导的表语从句的区别：Thats why意为意为“那是那是.的原因的原因”，强调强调结果结果Thats because意为意为“那是因为那是因为.”，强调，强调原因原因The reason why.is that.意为意为“.的原因是的原因是.”1.这就是我们取得如此大的原因.This is why we made so great progress.2.那是因为我太在乎你了。That is because I care too
5、much about you.2.only+时间状语从句位于句首，引起部分倒装。only+副词/介词短语/时间状语从句放在句首时，句子都用部分倒装的形式.需要注意的是，“only+从句”放在句首时，倒装的是主句，从句不使用倒装；only修饰主语时，不使用倒装。exercise 1 请完成导学案p32 task 13 变式训练 answer（1）did（2）Only in this way can we why 和和 because 引导的表语从句的区别引导的表语从句的区别：Thats why意为意为“那是那是.的原因的原因”，强调强调结果结果Thats because意为意为“那是因为那是因为
6、.”，强调，强调原因原因The reason why.is that.意为意为“.的原因是的原因是.”1.这就是我们取得如此大的原因.This is why we made so great progress.2.那是因为我太在乎你了。That is because I care too much about you.2.only+时间状语从句位于句首，引起部分倒装。only+副词/介词短语/时间状语从句放在句首时，句子都用部分倒装的形式.需要注意的是，“only+从句”放在句首时，倒装的是主句，从句不使用倒装；only修饰主语时，不使用倒装。Homework：1.review what you have learned 2.recited them and dictate them to hand in your group monitor 3.write your mistakes in relevant notebook 4.do all the rest exercises in class 5.do all the exercises in exercise book and if possible review next class