英语中,表示条件的连词有很多种,常见的有if、unless、provided that、as long as、in case、suppose等等。
- if if是表示条件的最常用的连词,它可以引导条件句,也可以引导条件状语从句。例如:
- If it rains tomorrow, we will stay at home.(如果明天下雨,我们会呆在家里。)
- She will pass the exam if she studies hard.(如果她努力学习,她会通过考试。)
- unless unless的意思是“除非”,它通常表示否定的条件。例如:
- I won't go to the party unless you come with me.(除非你跟我一起去,否则我不会参加这个派对。)
- He won't be happy unless he gets a promotion.(除非他得到升职,否则他不会开心。)
- provided that provided that的意思是“如果……的话”,它常用于表示前提条件。例如:
- You can borrow my car provided that you drive carefully.(如果你驾驶得小心,你可以借用我的车。)
- You can use my computer provided that you don't delete any important files.(如果你不删除任何重要文件,你可以使用我的电脑。)
- as long as as long as的意思也是“只要”,它表示必要但不充分的条件。例如:
- I will support you as long as you try your best.(只要你尽力,我会支持你。)
- You can stay here as long as you don't make any noise.(只要你不制造任何噪音,你可以在这里待着。)
- in case in case的意思是“以防万一”,它表示可能发生的情况。例如:
- I will take an umbrella with me in case it rains.(我会带一把雨伞,以防下雨。)
- Please keep this phone number in case of emergency.(请记下这个电话号码,以备不时之需。)
- suppose suppose的意思是“假设”,它用于引导虚拟条件语句。例如:
- Suppose you won the lottery, what would you do?(假设你中了彩票,你会做什么?)
- Suppose it were true, what would be the consequences?(假设这是真的,后果会是什么?)
以上就是一些常用的表示条件的连词,希望对您有所帮助!