《小学一般现在时(详细讲解).ppt》由会员分享，可在线阅读，更多相关《小学一般现在时(详细讲解).ppt（30页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、一般现在时,一般现在时(关键词),现在 经常反复发生 习惯性 规律、真理,1.表示现在的状态： e.g. Hes twelve. Shes at work. 2.表经常、反复、习惯性的动作： e.g. I get up at 6:30 every day. He reads English every morning. 常用的状语：often , sometimes , usually , every day 等。 3.表示不受时间限制的普遍真理和自然规律： e.g. Two and four is six. The moon goes around the earth.,常与一般现在时连用的
2、词,1、every系列,every,day year month week morning afternoon evening,、频率副词,never,、次数,一次once两次 twice 三次 three times 一周两次 twice a week 每周四次 four times a week 每周六 on Saturdays 每周日 on Sundays,一般现在时的构成,一、系动词be的一般现在时,1、构成：,主语 + be + 其他,2、be 包 括 哪 些 ？,is am are,3、 什么时候用is？ 什么时候用am？ 什么时候用are？,取决于主语是单数 还是复数,The g
3、irl is my friend.,主语为单数时 主语为复数时 主语为“I”时 ,is,are,am,Exercise,1、Kitty_an English girl. 2、We _students. 3、I _ from Guangzhou. 4、She_ tall. 5、Lucy and Lily _ good friends. 6、Those chairs _broken. 7、The bag_ mine.,is,are,am,is,are,are,is,否定句的构成,主语 + be + not + 其他,is not = am not= are not=,isnt,m not,aren
4、t,1、Kitty (not) an English girl. 2、We (not) students. 3、I (not) from Taizhou. 4、She (not) tall. 5、Lucy and Lily （not）good friends. 6、Those chairs (not) broken. 7、The bag (not) mine,isnt,arent,am not,isnt,arent,arent,isnt,Yes，it is.,No，it isnt.,1、Is this your English book ？,注意：在回答时，主语要用相应的代词代替,be + 主
5、语 + 其它部分？,肯定回答：Yes，主语+be,否定回答：No，主语+be+not,be,主语,其他,含be一般疑问句的改写,秘诀：一调二改三问号一调：即把句中的be调到主语前；二改：改换主语称谓，即将句中的主语I my mine we our ours等第一人称分别改为相应的第二人称you your yours等；三问号：句末的句号改为问号,行为动词的一般现在时,构成,主语 + 行为动词 + 其他,These boys like playing football.,The girl reads English every morning.,注意：当主语为第三人称单数时， 行为动词要加s或者
6、es,什么时候加s，什么时候加es呢？,1、大多数动词在词尾直接加s， read reads look looks play plays 2、以辅音字母加y结尾的动词，要先将y变为i，再加es fly flies carry carries study studies 3、以“s, x, ch, sh”结尾的，在词尾加“es”， teachteaches iz; watchwatches box-boxes 4、以“o”结尾的动词，加“es” gogoes z dodoes z,Complete the sentences.,My father_(listen) to the radio ev
7、ery day. Mike_ (study) in a middle school. She_(take) Eddie for a walk after supper. He_(wash) clothes with his hands. Simon _ (pass) the ball to Daniel. Miss Li_ (teach) Chinese. Look at the animal, it _ four legs.,listens,takes,studies,washes,passes,teaches,has,8,否定句的构成,主语 + 助动词（do/does）+not +动词原形
8、 + 其他,These boys dont（do not） like playing football.,The girl doesnt （does not）read English every morning.,什么时候用助动词do，什么时候用助动词does呢？,取决于主语,The girl reads English every morning.,These boys like playing football.,当主语为复数时，用助动词do构成否定 当主语为单数时，用助动词does构成否定,注意：dont 和 doesnt 之后动词一定要用原形,Complete the sentence
9、s. Use the proper verb forms in brackets,1. Jordan _(play) basketball. He _(not play) football. 2. I _(go) swimming on Sunday. But I_ (not go) shopping. 3. My cousins _(enjoy) computer games. But they _(not enjoy) ball games. 4. You _(like) fish. But he _(not like) fish.,plays,doesnt play,go,dont go
10、,enjoy,dont enjoy,like,doesnt like,12,行为动词一般疑问句的构成,含行为动词（或称为实义动词）一般疑问句的改写,秘诀：一加二改三问号一加：即在句首加助动词Do或Does；二改：1、把谓语动词改为原形； 2、改换主语称谓（同第一家组）；三问号：句末的句号改为问号。,问句： Do your parents like English？ 肯答： Yes，they do. 否答： No，they dont.,助动词 + 主语 + 动词原形 + 其它？,肯定回答用“Yes, 主语+ do/does.” 否定回答用“No, 主语+do not/does not.” 助动词
11、也常用缩写形式，主要有dont，doesnt,We read English every morning., Do you read English every morning?,Toms father listens to English on the radio every evening ., Does Toms father listen to English on the radio every evening?,句型转换,1. Mr. Green comes from Shanghai. (改为一般疑问句) 2. Millie lives in a flat in Beijing.
12、 (改为否定句),Does Mr. Green come from Shanghai?,Millie doesnt live in a flat in Beijing.,3. Daniel enjoys playing computer games. (改为一般疑问句并做肯定回答),Does Daniel enjoy playing computer games?,Yes, he does.,some、any,一般说来，some 用于肯定句中，any 用于否定句和疑问句中 。,改疑问句或否定句时，原句里的some要改成any,There are some books on the desk.
13、(改为否定句),There arent any books on the desk.,Are there any books on the desk?,and or,变否定句时，and要变成or,There is some air and water on the moon ., There isnt any air or water on the moon.,He has some brothers and sisters.,He doesnt have any brothers or sisters.,在否定句当中，too要改为either,I like eating apples, too.,I dont like eating apples, either.,