2017小升初英语常考语法知识大全
七、动词：动词的四种时态：
(1)一般现在时：
一般现在时的构成
1. be动词：主语+be(am, is, are)+其它。如： I am a boy. 我是一个男孩。
2. 行为动词：主语+行为动词(+其它)。 如： We study English. 我们学习英语。
当主语为第三人称单数(he, she, it)时，要在动词后加"-s"或"-es"。如：Mary likes Chinese.玛丽喜欢汉语。
动词+s的变化规则
1.一般情况下，直接加-s，如：cook-cooks, milk-milks
2.以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes
3.以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies
(2)一般过去时:
动词过去式详解 动词的过去式的构成规则有：
A、规则动词
① 一般直接在动词的后面加ed：如 worked , learned , cleaned , visited
② 以e结尾的动词直接加d：如 lived , danced , used
③ 以辅音字母加y结尾的动词要改y为i再加ed(此类动词较少)如 study – studied carry – carried worry –
worried (注意play、stay不是辅音字母加y,所以不属于此类)
④ 双写最后一个字母(此类动词较少)如 stopped
B、不规则动词(此类词并无规则，须熟记)小学阶段要记住以下动词的原形和过去式：sing – sang , eat – ate ,
see – saw , have – had , do – did , go – went , take – took , buy – bought , get – got , read – read
,fly – flew , am/is – was ,
are – were , say – said , leave – left , swim – swam , tell – told , draw – drew , come – came , lose
– lost , find – found , drink – drank , hurt – hurt , feel – felt
(3)一般将来时：
基本结构： ①be going to + do;
②will+ do. be going to = will
I am going to go swimming tomorrow(明天). = I will go swimming tomorrow.
(4)现在进行时: am,is,are+动词现在分词
动词现在分词详解 动词的ing形式的构成规则：
① 一般的直接在后面加上ing , 如doing , going , working , singing , eating
② 以e 结尾的动词，要先去e再加ing ，如having , writing
③ 双写最后一个字母的(此类动词极少)有：running , swimming , sitting , getting
第三部分：句法
1.陈述句
(1)肯定句：是指用肯定的语气来陈述的句子，如：I’m a student. She is a doctor. He works in a hospital.
There are four fans in our classroom. He will eat lunch at 12:00. I watched TV yesterday evening.
(2)、否定句：含有否定词或表示否定意义词的句子，如：I’m not a student. She is not (isn’t) a doctor.
He does not (doesn’t) work in a hospital. There are not (aren’t) four fans in our classroom.
He will not (won’t) eat lunch at 12:00. I did not (didn’t) watch TV yesterday evening.
2. 疑问句
一般疑问句：是指询问事实的句子，此类句子必须用“yes”，或“no”来回答。
特殊疑问句：以特殊疑问词(what , where , who , which , when , whose , why , how等)开头引导的句子。此类句子应该
问什么就答什么，不能用“yes 、no”来回答。
3.There be句型
There be 句型与have, has的区别
1、There be 句型表示：在某地有某物(或人)x kb 1.c om
2、在there be 句型中，主语是单数，be 动词用is ; 主语是复数，be 动词用are ; 如有几件物品，be 动词根据最*近be 动
词的那个名词决定。
3、there be 句型的否定句在be 动词后加not , 一般疑问句把be 动词调到句首。
4、there be句型与have(has) 的区别：there be 表示在某地有某物(或人);have(has) 表示某人拥有某物。
5、some 和any 在there be 句型中的运用：some 用于肯定句， any 用于否定句或疑问句。
6、and 和or 在there be句型中的运用：and 用于肯定句， or 用于否定句或疑问句。
7、针对数量提问的特殊疑问句的基本结构是：
How many + 名词复数 + are there + 介词短语?
How much + 不可数名词 + is there + 介词短语?
8、针对主语提问的特殊疑问句的基本结构是：
What’s + 介词短语?
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