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1、关于原因状语从句和目的状语从句现在学习的是第1页，共15页原因状语Afraid of being late,they came by taxi.因为怕迟到，所以他们坐出租车来的。Thank you for reminding me.谢谢你提醒我。现在学习的是第2页，共15页Ill have to have my watch replaced because there is something wrong with the alarm.现在学习的是第3页，共15页引导词Because，since，as等语气强弱because since asbecause不知道原因since原因明显，已知as
2、双方都知道现在学习的是第4页，共15页They bumped her off _ she knew too much.因为她知道太多，所以他们把她干掉了。_ you are free today,you had better help me with my mathematics.既然既然今天你休息，你最好帮我补习数学。_it is raining,youd better take a taxi.因为在下雨，你最好乘出租汽车。becauseSinceAs 现在学习的是第5页，共15页（1 1）回答回答whywhy，只能用，只能用becausebecause。A：Why cant I go?B：
3、_ you are too young.Because现在学习的是第6页，共15页（2)2)不能将不能将because,since,as等等与与so连用。连用。2._ he is ill,_he cannot come.A.Because,/B.Because,so C.Though,but D.Though,/A现在学习的是第7页，共15页because和because ofbecause+从句because of+名词短语他因病不能来。He cant come because he is ill.He cant come because of his illness.现在学习的是第8页，共
4、15页Read and combine.I bought the house simply.It is large.I bought the house simply because it is large.现在学习的是第9页，共15页1.Everybody stays under the tree.It is very hot.As it is very hot,everybody stays under the tree.现在学习的是第10页，共15页2.The boy couldnt draw money from the ATM.He forgot the pin.The boy couldnt draw money from the ATM because he forgot the pin.现在学习的是第11页，共15页3.I will explain again.You do not understand.Since you do not understand,I will explain again.现在学习的是第12页，共15页目的状语从句现在学习的是第13页，共15页引导词so that，in order that等“以便”现在学习的是第14页，共15页感谢大家观看现在学习的是第15页，共15页