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应不少条友的私信要求,整理一些基础语法知识,希望对大家的学习有所帮助。本文主要学习《连词辨析(and与or)》。欢迎留言或私信交流,共同进步。
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1.连接并列成分且表示“和”之意时,and通常用于肯定句,or通常用于否定句; 如果句中并列连词所连接的两个结构都是否定结构,用and而不用or。例如:
Do it slowly and carefully. 要慢慢仔细地做。Can he read and write? 他能读会写吗?I've got tired of looking at nature through dirty curtains and dusty windows. 我厌倦了透过肮脏的窗帘和满是灰尘的窗户看大自然。He had no food or water and he was in terrible pain.他没有食物和水,非常痛苦。He can't read or write. 他不会读,不会写。There is no water and no air on the moon.月球上没有水和空气。2.or可用于表选择,意为“或者,还是”,而 and 无此用法。例如:
Is your sister older or younger than you? 你的姐妹比你大还是小?It can be black, white or grey. 它可能是黑的、白的或灰的。3.or可用于两个数字之间,表示“大约”,而and无此用法。例如:
There were six or seven of us there. 我们约有六、七个人在场。For three years, I have had very bad headaches about three or four times a month. 三年来,我每个月都会严重头痛三四次。I'll present it to you in one or two days. 一两天后我会把它提交给你。4.“祈使句 and/or 陈述句”句型中,and表顺承,可译为“就”,此时祈使句相当于if引导的条件状语从句; or表示以祈使句为条件的相反假设,意为“否则,要不然”,可用or else或otherwise替换,此时祈使句相当于if...not…引导的条件状语从句。例如:
Take more exercise and you will feel healthy = If you take more exercise, you will feel healthy. 多锻炼身体,你就会身体健康。Be careful or you’ll make more mistakes. = If you are not careful, you’ll make more mistakes. 细心点,不然你会犯更多的错误。坚持学习的你最棒,加个关注点个赞转发一下呗!
欢迎大家关注、留言、点赞和转发,更多有用的知识每日更新,助力考上985!