文档介绍：七年级上册知识点一、48个国际音标及26个英文字母的正确书写要熟练掌握元音和辅音,5个元音字母(a,e,i,o,u),字母的正确占格及单词间距。二、be动词的用法be动词有三种变形,分别是:am,is,are。记忆口诀:“我”用am,“你”用are,is跟着“他、她、它”;单数全都用is,复数全部都用are。三、人称及人称代词的不同形式(主格和宾格)1、三种人称:第一人称(I,we),第二人称(you,you),第三人称(he,she,it,Maria)。2、人称代词的主格,即人称代词位于句子主语位置时的形态:I,We,You,You,He,She,It,Maria。3、人称代词的宾格,即人称代词位于句子宾语位置时的形态:me,us,you,you,him,her,it。4、形容词性物主代词:my,our,your,your,his,her,its,their。5、名词性物主代词:mine,ours,yours,yours,his,hers,its,theirs。6、反身代词:myself,ourselves,yourself,yourselves,himself,herself,itself,themselves。四、基数词(表示数量多少的词,大致相当于代数里的自然数)zero,one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,een,twenty,twenty-one,twenty-two,twenty-three,twenty-four,twenty-five,twenty-six,twenty-seven,twenty-eight,twenty-nine,thirty,forty,fifty,sixty,seventy,eighty,y,onehundred,onehundredandone。五、一般疑问句及特殊疑问句1、一般疑问句:能用Yes或No来回答的问句。一般疑问句句尾读升调。2、特殊疑问句:不能用Yes或No来回答的问句。特殊疑问句句尾读降调。六、可数名词变复数可数名词变复数时,有规则变化和不规则变化两种。1、规则变化:1)一般情况直接在词尾加“-s”,如:cake-cakes,bag-bags,day-days,face-faces,orange-oranges等;2)以s,x,sh,ch结尾的词,要在词尾加“-es”,如:bus-buses,watch-watches,box-boxes等;3)以辅音字母加y结尾的词,变y为i再加“-es”,如:baby-babies,country-countries,family-families等;4)部分以f(e)结尾的词,变f(e)为“ves”,如:knife-knives,half-halves等;5)以o结尾的词,加“-s”或“-es”,如:zoo-zoos,photo-photos,tomato-tomatoes,potato-potatoes等。记忆口诀:除了“英雄”hero外,凡是能吃的,加“-es”,不能吃的加“-s”。2、不规则变化:1)改变单数名词中的元音字母:man-men,woman-w