Unit 5GrammarAdverbial ClausesCause, Result and Purpose2一、原因状语从句一、原因状语从句A. Since As weve no money, we cant buy it. 由于我们没钱，我们无法购买它。B. Seeing that its raining, wed better stay indoors. 既然外边在下雨，我们最好待在室内。C. Now that you are here, youd better stay.你既然来了，最好还是留下吧(既来之，则安之)。 D. Because it was raining, we stayed at home. 3because, as, since, now that, considering that，in that. 4比较：比较：because, since, as和和for 1）because语势最强，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知，就用as或 since。A. I didnt go, because I was afraid.B. Since /As the weather is so bad, we have to delay our journey.2 2）由）由becausebecause引导的从句如果放在句末，且前面有逗引导的从句如果放在句末，且前面有逗 号，则可以用号，则可以用forfor来代替。但如果不是说明直接原因，来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用而是多种情况加以推断，就只能用forfor。A. He is absent today, because / for he is ill.B. He must be ill, for he is absent today. 53). since3). since引导的原因状语从句一般放于主句之前表引导的原因状语从句一般放于主句之前表示已知的、示已知的、 显然的理由显然的理由( (通常被翻译成通常被翻译成“既然既然”) )， 较为正式，较为正式， 语气比语气比becausebecause弱。弱。Since you are free today, you had better help Since you are free today, you had better help me with my mathematics. me with my mathematics. 既然今天你休息，既然今天你休息， 你最好帮我补习数学。你最好帮我补习数学。4) seeing (that)4) seeing (that)， now (that)now (that)， considering considering (that)(that)， in thatin that这几个词汇与这几个词汇与sincesince引导的原因状引导的原因状语从句意思相近，语从句意思相近， 都表示都表示“既然既然”。Seeing (that) he refused to help us, theres no reason that we should now help him. . 他他既然曾经拒绝帮助我们，既然曾经拒绝帮助我们， 我们现在没有理由要来帮我们现在没有理由要来帮助他。助他。 61. _ youve got a chance, you might as well make full use of it. (1999) A. Now that B. After C. Although D. As soon as2. He found it increasingly difficult to read, _ his eyesight was beginning to fail. (2006北京)A. and B. for C. but D. or3. A man cannot smile like a child, _ a child smiles with his eyes, while a man smiles with his lips alone. (2006湖南)A. so B. but C. and D. for7二、结果状语从句二、结果状语从句 1.so foolish； such a fool 2.so nice a flower； such a nice flower 3.so many / few flowers； such nice flowers 4.so much / little money； such rapid progress 5.so many people； such a lot of people sothat：A. so+adj.+a/an+n+thatB. so+many/much/few/little+n+thatsuchthat:A. Such +adj.+n+that8考题1 Pop music is such an important part of society _ it has even influence our language. (07上海)A. as B. that C. which D. where考题2 His plan was such a good one _ we all agreed to accept it. (06陕西)A. so B. and C. that D. as考题3 We were in _ when we left that we forgot the airline tickets. (03上海)A. a rush so anxious B. a such anxious rushC. so an anxious rush D. such an anxious rush91.Our teacher gave us so difficult a question _ we couldnt solve it.2.Our teacher gave us so difficult a question _ we couldnt solve.结果状从结果状从定从定从10三、目的状语从句三、目的状语从句 1.You must speak louder so that /in order that you can be heard by all.2.He wrote the name down for fear that he should forget it.3.Better take more clothes in case the weather is cold.表示目的状语的从句可以由that, so that, in order that, for fear that, in case等词引导 1112THANK YOU