1、GRAMMAR原因、结果和目的状语从句原因状语从句常见的引导原因状语从句的连词有because, as, since, for等。1. because引导原因状语从句，语气最强，可用于回答why引出的问题，述说直接原因或必然的因果推断，所引导的从句位于主句前后皆可。如：Why did you do it?Because Carlos told me to.We didnt enjoy the day because the weather was so awful.Because he had been in prison, employers were unwilling to offer
2、him a job.2. for通常用来表示一个补充说明的理由。它所引导的状语从句只能位于主句之后。如：She remained silent, for her heart was heavy and her spirits low.It must have rained last night, for the ground is wet.3. as所表述的原因比较明显或是已知事实，只是附带说明，不能回答why引出的问题，多用于日常谈话中。所引导的从句位于主句前后皆可。如：As it was getting late, I decided to book into a hotel.You ca
3、n go first as youre the oldest.4. since常常译为“既然”，语气比because弱，比as略重，一般表示对方已知的、不需要加以说明的既成事实的理由，所引导的从句位于主句前后皆可。如：Since weve got a few minutes to wait for the train, lets have a cup of coffee.Im forever on a diet, since I put on weight easily.结果状语从句常见的引导结果状语从句的连词有so that, so . that ., such . that .等。 1.
4、so that意为“因此，所以，以至于，结果”，主从句之间通常用逗号分开，但有时也可以不用逗号。如：All these problems are hard enough, so that he can not solve all of them.2. so . that .意为“这样/如此以至于，因而，因此”，常用于以下结构：so +形容词/副词+ that从句；so +形容词+ a / an +名词+ that从句；so + many / much / few / little +名词+ that从句。如：I got up so early this morning that I felt
5、sleepy all day.It was so interesting a book that he couldnt put it down.The grass received so little water that it turned brown in the heat.3. such . that .意为“是这样的以致”，常用于以下结构：such + a / an +形容词+名词+ that从句；such +形容词+复数名词或不可数名词+ that从句。如：It was such a hot day that they decided not to go anywhere.It is
6、 such good music that I enjoy it.4. so, such连同它们所直接修饰的成分共同位于句首时，主句要使用部分倒装语序。如：So difficult was the problem that it took us two hours to work it out.Such a good runner did I find him that I couldnt catch up with him. 目的状语从句常见的引导目的状语从句的连词有so that, in order that等。目的状语从句中常常使用情态动词。目的状语从句多用于主句之后。如：Bring i
7、t nearer so that I may see it betterHe came home early in order that he could see the children before they went to bed.【即学即练】I. 翻译下面句子。1. 既然你无法回答这个问题，我们最好再问问别人。 _2. 他一定是把书拿走了，因为它已不在这里了。 _3. 她的裙子太长以至于拖到地板上。 _4. 为了能及时赶到那里，我们早早就出发了。conj.因为_II. 从括号内选出正确的选项填空。1. The old man asked Lucy to move to another
8、chair _ (so that / because) he wanted to sit next to his wife. 2. The police officers in our city work hard _ (since / in order that) the rest of us can live a safe life. 3. He didnt plan his time very well, _ (in order that / so that) he didnt finish the work in time.4. Mary needs to learn Chinese
9、_ (since / so that) her company is opening a branch in Beijing. 5. _ (So / Such) many people came to the concert that some couldnt get in for lack of space. III从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。1. Mark needs to learn Chinese _ his company is opening a branch in Beijing. (山东2013)A. unless B. until C. alth
10、ough D. since 2. I took my driving license with me on holiday, _ I wanted to hire a car. (北京2013)A. in case B. even if C. ever since D. if only3. The police officers in our city work hard _ the rest of us can live a safe life. (上海2011)A. in case B. as if C. in order that D. only if参考答案：GRAMMAR【即学即练】I. 1. Since you cant answer the question, wed better ask someone else. 2. He must have taken the book for it isnt here.3. Her skirt is so long that it reaches the floor.4. We set out early in order that we could get there on time.II. 1. because2. in order that3. so that 4. since 5. SoIII1-3 DAC