原因状语从句和目的状语从句省公共课一等奖全国赛课获奖课件.pptx

原因状语从句第1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。Thank you for reminding me.谢谢你提醒我。第2页Ill have to have my watch replaced because there is something wrong with the alarm.第3页引导词Because，since，as等语气强弱because since asbecause不知道原因since原因显著，已知as双方都知道第4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 第5页（1 1）回答回答whywhy，只能用，只能用becausebecause。A：Why cant I go?B：_ you are too young.Because第6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第7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.第8页Read and combine.I bought the house simply.It is large.I bought the house simply because it is large.第9页1.Everybody stays under the tree.It is very hot.As it is very hot,everybody stays under the tree.第10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.第11页3.I will explain again.You do not understand.Since you do not understand,I will explain again.第12页目状语从句第13页引导词so that，in order that等“方便”第14页I lent him$50 in order that he might go for a holiday.我借给他50美元，方便他能去度假。他早起方便他能够赶上首班车。He got up early so that he could catch the first bus.谓语前常含有may,might,can,could,should,would等情态动词。第15页