七年级上册词性的复习

七年级上册词性的复习 一 名词 1、名词的复数 1 、一般的直接加 s,如 desk desks 、penpens、rulerrulers 2 、以 x、s、ch、sh 结 尾的力口 es 如 boxboxes classclasses watch watches等 3 、以辅音字母加y结尾的要变y为i加es,如family ,comedy,documentary 等 4 、以 0 结尾的名词，有生命的加 es 如tomatotomatoes、potato potatoes ; 没有生命的加s,如 photophotos pianopianos、zerozeros 2、名词所有格在名词的后边加，s,表示后面的名词属于前面的名词所有，如Li Leis bag Toms desk、her mothers brother 另of表示的名词所有格a photo of my family我的家庭照；a girl of five 一 个五岁的女孩 3、专有名词的大写 如 English Brown 、Rush 、 Sunday 、January 、December Beijing Opera 二 动词 1、动词的种类四类 系动词如beis am are；情态动词如can、may、need；助动词do does；行为 动词如 take、bring eat havehas like sell buy sale play see find go、watch thank think 等 2、动词的第三人称单数与名词的复数一样 如 eateats take takes buy buys play plays havehas are is 3、动词的时态一般现在时 1 含有系动词的 Im a Chinese boy. She is twelve. He is Tims brother. Her mother is an English teacher . 含有系动词的句子在变一般疑问句时只将“主语和系动词交 换位置，上面句子变成一般疑问句时分别为 Are you a Chinese boy 注意第一人称通常变为第二人称 Is she twelve Is he Tims brother Is her mother an English teacher 含有系动词的句子在变否定句时只须“在系动词的后边加上 not”,前面的几个了陈述句变否定句分别为 Im not a Chinese boy. She isnt twelve. He is not Tims btother. Her mother isnt an English teacher. 2 含有情态动词的句子can , She can play basketball. His mothers cousin can sing many English songs. 含有情态动词的句子在变一般疑问句时只须将“主语和情态 动词交换位置，上面两句变一般疑问句分别为 Can she play basketball Can his mothers cousin sing many English songs 变否定句分别为 变否定句分别为 含有情态动词的句子在变否定句时直接在情态动词的后边加上not，上面两个陈述句 She can not play basketball. His mothers cousin can not sing many English songs. 3 含有行为动词的句子 We have many friends. They watch TV at 7 in the evening. The students take their books to school. I have lunch at school. You have a sister. ①含有行为动词的句子在变一般疑问句时要在原句子的前面加do.上面的句子变成 一般疑问句分别为 Doyouhavemanyfriends DotheywatchTVat 7 in theevening Do the students take their books to school Doyouhavelunchat school Do you have a sister ⑵含有行为动词的句子在变否定句时只须在行为动词前加 dont.上述五个陈述句变否定句分别为 We dont have many friends. They dontwatchTVat 7in the evening. The studentsdonttaketheirbooks to school. I dont have lunch at school. You dont have a sister. ③含有行为动词的句子，当主语是第三人称单数时，行为动 词要加s 或es如 She has a red pen. He has eggs for breakfast. Her mother buys a skirt for her. She likes thrillers. My brother watches TV every evening. He wants to go to a movie. 含有行为动词的句子，当主语是第三人称单数时，变一般疑 问句要“在原句子的前面加上does ,同时行为动词要还原”上 面的句子变成一般疑问句分别为 Does she have a red pen Does he have eggs for breakfast Does her mother buy a skirt for her Does she like thrillers Does your brother watch TV every evening Doeshe want to go to a movie 含有行为动词的句子，当主语是第三人称单数时，变否定句 时“在行为动词前面加does，nt,同时原行为动词要还原”。上面 的句子变否定句分别为 She doesnt have a red pen. He doesnt have eggs for breakfast. Her mother doesnt buy a skirt for her. She doesnt like thrillers. My brother doesnt watch TV every evening. He doesnt