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一、主谓一致三原则 主谓一致是指谓语动词与主语在人称和数上保持一致,主谓一致必须遵循三原则:语法一致原则,意义一致原则,就近一致原则。 1. 语法一致原则:指主语是单数形式,谓语动词用单数形式,主语是复数形式,谓语也用复数形式。例如: Tom is a good student. 汤姆是个好学生。 They often play football on the playground. 他们经常在操场上踢足球。 2. 意义一致:指主语形式上为单数,但意义为复数,因此谓语动词用复数形式;或主语形式上为复数,但表示单数意义,这是谓语动词用单数形式。例如: My family are having lunch now. 我们一家人现在正吃午饭。 Twenty dollars is too expensive for the book. 这本书20美元太贵了。 3. 就近一致:指谓语动词用单数形式还是用复数形式,取决于最靠近他的主语。例如: Not only the teacher but also his students like playing football. 不仅老师喜欢踢足球,而且他的学生也喜欢踢足球。 There is a pen and some books on the desk. 课桌上有一支钢笔和一些书。 二、 主谓一致常考题型 1. 单数名词(代词),不可数名词作主语时,谓语用单数形式,复数名词(代词)作主语,谓语用复数形式。例如: The desk is Tom’s. 这张桌子是汤姆的。 Some water is in the bottle. 一些水在瓶子里。 The students are playing football on the playground. 这些学生正在操场上踢足球。 2. many a+单数名词作主语,意义虽为“许多”,但谓语要用单数形式。例如: Many a student has been to Shanghai. 许多学生到过上海。 3. more than one+单数名词作主语,谓语用单数。例如: More than one student has ever been to Beijing. 不止一个学生曾经去过北京。 4. 表示时间,价格,重量,数目,长度,数学运算等的词或短语作主语时,这些通常作一个整体概念,谓语用单数形式。例如: Two months is a long holiday. 两个月是一个长假。 Tweney pounds isn’t so heavy. 2 0英镑并不太重。 Ten miles isn’t a long distance. 1 0英里并不是一段很长的距离。 Five minus four is one. 5减4等于1。 5. 主语是each/every+单数名词+and(each/every)+单数名词时,谓语动词用单数。例如: Each boy and each girl has got a seat. 每个男孩和女孩都有一个座位。 Every man and every woman is at work. 每个男人和女人都在工作。 6. one and a half+复数名词作主语,谓语动词用单数形式。例如: One and a half hours is enough. 一个半小时足够了。 7. 动词不定式,动名词作主语时,谓语动词用单数形式。例如: To see is to believe 眼见为实。 Doing eye exercises is good for your eyes. 做眼睛保健操对你的眼睛十分有益。 8. a/an+单数名词+or two 作主语,谓语动词用单数。例如: A student or two has failed the exam. 一两个学生考试不及格。 9. 当主语部分含有with,together with,along with,as well as,besides,except,but,like等介词或介词短语时,谓语动词用单数形式。例如: Mike with his father has been to England. 迈克同他的父亲去过英格兰。 Mike,like his brother,enjoys&nbs
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