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“条件从句”表达知多少

2008-09-27

中学生英语高中综合天地 2008年7期
关键词:外衣火灾条件

周 华

在平时的教学中,学生们会在练习中遇到各种各样的条件从句的表达法,现将它们归纳如下:

一.if:“如果”,这是最常见的,也是学生掌握最牢的。例如:

①If you demand his presence,warn him in advance.(如果你要他来,就事先通知他。)

② If it had not been for your help,we would not have succeeded.(要不是你们的帮助,我们就不会成功。)

二.as/so long as “只要,如果” 例如:

①Its a good idea to start a part-time job as long as it doesnt affect your studies.(只要不影响你的学习而干点零活,这是个好主意。)

②You shall never enter this house so long as I live in it.(只要我住在这间屋里,你就甭想进来。)

三.on/upon condition that “在……条件下,假如……” 例如:

①Ill lend you the book on condition that you can return it in time.(只要你能及时归还,我就把这本书借给你。)

②You can go out on condition that you

wear an overcoat.(你要穿上外衣才能出去。)

四.on the understanding that “在……条件下,以此为条件” 例如:

①I lent him 500 yuan on the under-standing that he would repay me today.(我借给他500元,条件是他得今天还我。)

②Ill give her some money on the understanding that she should spend it on books.(我借给她一些钱,条件是她要把这些钱用来买书。)

五.suppose/supposing(that)“假定/设……” 例如:

①Suppose(that) the news is true,what then?(假定这消息是真的,那又怎样?)

②Supposing(that) you had a million pounds—how would you spend it?(假如你有一百万英镑——你会怎么花呢?)

六provided/providing(that)“在……情况下,假如……” 例如:

①I will agree to go provided/providing my expenses are paid.(假如为我负担费用,我就同意去。)

② Provided we get good weather it will be a successful holiday.(如果天气好,我们的假期将过得非常好。)

七.in case “如果……” 例如:

① In case he comes ,let me know.(如果他来,就告诉我。)

②In case of fire ,ring the alarm bell.(万一发生火灾,立即按警铃。)

八.while “只要” 例如:

①There will be class struggle while classes exist.(只要有阶级,就有阶级斗争。)

九.but that “要不是……” 例如:

①But that you had seen me in the water,I would have drowned.(要不是你看见我掉进水里,我早就淹死了。)

②He would have come with us but that he had no money.(他要不是因为缺钱,就与我们一起来了。) ★

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