初一英语上册语法汇总5篇.docx

初一英语上册语法汇总5篇A)第三人称单数当动词是第三人称单数时，动词应该像名词的单数变动词那样加s，如下：一)一般在词后加s。如：comes,spells,waits,talks,sees,dances,trains二)在x,sh,ch,s,tch后加es。如：watches,washes,wishes,finishes三)1)以辅音字母加y结尾的变y为i再加es。如：study-studies,hurry-hurries,try-tries2)以元音字母加y结尾的直接加s。如：plays,says,stays,enjoys,buys四)以o结尾加es。如：does,goes五)特殊的有：are-is,have-hasB)现在分词当我们说某人正在做什么事时，动词要使用分词形式，不能用原形，构成如下：一)一般在后加ing。如：spell-spelling,sing-singing,see-seeing,train-training,play-playing,hurry-hurrying,watch-watching,go-going,do-doing二)以不发音e的结尾的去掉e再加ing。如：dance-dancing,wake-waking,take-taking,practice-practicing,write-writing,have-having三)以重读闭音节结尾且一个元音字母+一个辅音字母(注意除开字母组合如show–showing,draw-drawing)要双写最后的辅音字母再加ing。如：put-putting,run-running,get-getting,let-letting,begin-beginning四)以ie结尾的变ie为y再加ing。如：tie-tying系die-dying死lie-lying位于特殊情况：(两好多坏，一少老远)good/well-betterbestmany/much-moremostbad/ill–worseworstlittle-lessleastold-older/elderoldest/eldestfar-farther/furtherfarthest/furthest单数句变复数句1.可数名词单数要变为其相应的复数形式。Itisabox.→Theyareboxes.2.各个人称代词要由单数形式变为复数形式。Sheisagirl.→Theyaregirls.Iamathome.→Weareathome.3.am或is要变为are.Heisateacher.→Theyareteachers.4.指示代词this或that要分别变为these或those。Thisisapencil.→Thesearepencils.5.不定冠词a/an要去掉(固定搭配例外)。Itisablackcat.→Theyareblackcats.6.man或woman做定语修饰可数名词，在整个句子变成复数的情况下也要变成men或women.Sheisawomanteacher.→Theyarewomenteachers.注意：在单数句变复数句时，普通单数变为复数形式，但当名词修饰名词时，起修饰作用的名词不做变化。名词修饰名词常用单数。(man,woman除外)Thisisaappletree.→Theseareappletrees.