初中状语从句教案.docVIP

状语从句 介词短语作状语： In the classroom,the boy needs a pen./在教室里，男孩需要一支钢笔。（地点状语） Before his mother,Tom is always a boy./在母亲面前,汤姆总是一个男孩子.(条件状语) On Sundays,there is no student in the classroom./星期天,教室里没有学生.(时间状语) 分词（短语）作状语： He sits there,asking for a pen./他坐在那儿要一支笔。（表示伴随状态） Having to finish his homework,the boy needs a pen. 因为不得不完成作业，男孩需要一支笔。（原因状语） Frightened,he sits there soundlessly./（因为）受了惊吓，他无声地坐在那儿。（原因状语） 不定式作状语： The boy needs a pen to do his homework./男孩需要一支笔写家庭作业。（目的状语） To make his dream come true,Tom becomes very interested in business. 为实现梦想,汤姆变得对商业很有兴趣. 句子做状语： He had learned a little Chinese before he came to China. 在他来中国之前，他已经掌握了一些中文。 We won’t start until Bob comes. 我们不会开始的，直到鲍勃来了我们在开始。 状语从句种类： 时间状语从句、地点状语从句、原因状语从句、结果状语从句、 目的状语从句、比较状语从句、让步状语从句、条件状语从句 总括： 类别　　　　　　　　连　　　　词 时间状语从句　　when, whenever, while, as, before, after, since, till, once（一旦）地点状语从句　　where, wherever 原因状语从句　　because, since, as, for, now that（既然，由于）（etc.=and so on等等）目的状语从句　　in order that(为了，以便), so that, etc. 结果状语从句　　so…that, so that, such…that, that, etc. 条件状语从句　　if, unless, as(so)long as, etc. 让步状语从句　　though, although, even if, even though, however, whatever, as, etc. 比较状语从句　　as…as, so…as, than, etc. 方式状语从句　　as, as if, as though, etc. 时间状语从句 (1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如： It was raining hard（rain hard 下大雨） when got to school yesterday. While he was doing his homework, the telephone rang. As he walked along（沿着走） the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. (2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如： I’ll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won’t believe it until he sees it with his own eyes. (3)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如： The young man read till the light went out（熄灭）. Let’s wait until the