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1、2021/6/301Grammar:If you are happy,you will laugh.If you are happy,you can laugh.If you are happy,clap your hands.If I have free time,I will travel around the world.If I have free time,I must go home.If I have free time,stay at home and sleep late.主将（主句用一般将来时）主将（主句用一般将来时）从现（从现（if从句用一般现在时）从句用一般现在时）主情
2、（主句含有情态动词）主情（主句含有情态动词）从现从现主祈（主句是祈使句）主祈（主句是祈使句）从现从现2021/6/302If 条件状语从句句型的转换条件状语从句句型的转换2021/6/303 1.Come early and you will see her.(同义句）同义句）=If you come early,you will see her.2.Study hard and you will pass the exam.(同义句）同义句）3.Use your head and you will have an idea.(同义句）同义句）=If you study hard,you wi
3、ll pass the exam.=if you use your head,you will have an idea.1.祈使句祈使句+and+句子（谓语动词常用一般将来时）句子（谓语动词常用一般将来时）=if 从句（肯定），从句（肯定），+句子句子一。2021/6/3041.Study hard or(否则）否则）you will fail the exam.（同义句）（同义句）=If you dont study hard,you will fail the exam.2.Hurry up or you will be late.（改同义句）（改同义句）3.Get up early o
4、r you will miss the train.=If you dont hurry up,you will be late.=If you dont get up early,you will miss the train.2.祈使句祈使句+or(否则）否则）+句子（句子（谓语动词常用一般将来时）谓语动词常用一般将来时）=if 从句（否定），从句（否定），+句子句子2021/6/305二。借助介词二。借助介词with(有）或有）或without(没有）来转换成没有）来转换成 if条件状语从句条件状语从句 Fish may die without water.=if there is no
5、 water,fish may die.I will finish my homework with your help.=I will finish the work if you help me.2021/6/306Homework：将句子改为同义句（写在作业本上）：将句子改为同义句（写在作业本上）1.Study hard and you will pass the exam.2.Use your head and you will have an idea.3.Study hard or you will fail the exam.4.Get up early or you will miss the train.5.Fish may die without water.=_ there is _water,fish may die.6.I will finish my homework with your help.=I will finish the work if _ _ me.若有不当之处，请指正，谢谢！若有不当之处，请指正，谢谢！
if 条件状语从句的句型转换
