主谓一致用法归纳

主谓一致用法归纳在英语中，句子的主语和谓语在人称和数上必须做到一致。下面是主谓一致的一些主要规则：1、单词本身以-s结尾的某些名词作主语时，主谓一致的关系如下：1）学科名称：以-s结尾的科学名词如physics ,mathematics (maths) ,politics, economics（经济学）等作主语时，如果看作一门学科，谓语动词用单数，如果不是指一门学科，而是指其它含义，谓语动词可用复数。如：Politics?is taught?in our?school.Economics?is?an?important?subject. 经济学是一门重要的学科。但在以下句子中应使用得数谓语。如：His mathematics?are?weak..他的数学能力弱。2）某些专有名词：以- s结尾的某些专有名词如the United States? ,the? United Nations 等作主语时，谓语动词用单数。如：The United states?is in North America.3）以-s结尾的词如news,? means , works 等词作主语时，谓语用单数，但如果means, works指复数意义时，谓语用复数。 如：A chemical?works?is?being built now. Two chemical?works?have?been built in my hometown.4) 由成双，成双部分构成的器具及衣物等作主语时，谓语用复数。若前边有a pair of …?? 或a suit of …等词来修饰时，谓语动词用单数。如：The?clothes were made by herself.常见这样的词有：trousers, glasses, scissors （剪刀），tongs（钳子）等。2、用 and连接的两个名词作主语：1）用 and 并列两个单数名词，构成复数主语时，谓语动词用复数。He and Tom are students.2）用and连接两个单数名词在意义上指同一个人，物或概念时，谓语动词使用单数。如：The?worker and?writer?is coming to our school.3）用 and 连接两个物质名词作主语时，若看作一种混合体时，谓语用单数。如：Much?mud and?sand?has?been?washed?away?by the?flood.若看作两种不同物质时，谓语用复数。如：Water?and air?are what?we?must need.4）用and连接的两个名词，如果表示两个部件构成的物品组成一副用具时，谓语应使用单数。如：A?knife and fork is very useful for?a?foreigner.3、集合名词的主谓一致：集合名词如：family,team,class,group ,government ,court,committee, population, audience等词作主语时，若看作整体时用单数谓语，若看作个体时用复数谓语。如：The?family is?a?large?one. The family?are?all music?lovers.4、the+adj或分词作主语时，若指一类人，谓语用复数，若指抽象的含义时，谓语动词用单数。如：The?blind usually?trust their sense?of?touch.The?good?is?beautiful, but?the?beautiful?is not always?good.5、由连词or ;either… or…;neither…nor…;not only …but also…等词后边的名词或代词保持一致。21·cn·jy·com 如：You?or he is to blame. Either you?or I?am?right.但疑问句与前边一致。如：Are?either?you?or he right?6、主语+but??/ except??/ besides/? as well as?/ in addition to?/? including?/? with? +其它名词或代词时，谓语动词与前边的主语一致。如：No?one but Tom and John likes?the topioc.7、表示时间、重量、长度、价值的复数名词作主语时，若看作整体时，谓语用单数。如：Three years is? a long time.但如果强调具体多少年时，谓语用复数。如：Three?years have passed.8、由 each…and each…? every…and every?? no…and no…many a …and many a …等并列单数名词作主语时，谓语用单数。 如：Every teacher and every student?is working hard.9、被each或every 限定的词作主语时，谓语用单数。 如：Every student?is working?hard.但each若作主语的同位语时，或于句尾作状语时，不影响主语的数。 如：They?each have an Englis ... ...