(五)结果状语从句 结果状语从句常用从属连词that (以致,结果),so that (以致,结果),so+形容词(副词)+that(如此……以致于),such+名词+that(如此……以致于)等引导。 It was so cold that the lake froze.天气如此冷,以至于湖面结冰了。 He is such an honest student that the teachers all like him. 他是一个如此诚实的学生,所以每个老师都喜欢他。 比较:He is so good a student that the teachers all like him. 注:so...that结构可以用too...to结构替换,但必须具备两个条件。一是主句和结果状语从句的主语必须一致,二是从句中的谓语部分必须含有can (could)not。 I'm so tired that I can't go any further=I'm too tired to go any fur-ther. (六)比较状语从句 比较状语从句常用从属连词as...as (和……一样),as (so)...as(不如……),than (比),the more...the more (越……越)等引导。这类从句通常省略与主句中相同的成分。 He swims as well as you.他游泳和你一样好。 The summer in Beijing is much cooler than that in Guangzhou.北京的夏天比广州的夏天要凉快得多。 (详见《形容词、副词》一节) (七)条件状语从句 常用从属连词if (如果),unless (除非),so long as=as long as (只要),in case (如果,万一)引导。 If I can see her,I'll tell her the news.我如能见到她,会把这个消息告诉她。 Unless you work hard,you will fail.你除非努力工作,否则就会失败。 I'll work for the people as long as I live.只要生命不息,我就将为人民而工作。 In case I forget,please remind me.我万一忘了,请提醒我。 注:条件状语从句与时间状语从句一样,要用一般现在时表示一般将来时、用一般过去时表示过去将来时。 So long as you keep it secret,I'll tell you about it. He said he would come and see me if he was free the next week. |