资源预览内容
第1页 / 共6页
第2页 / 共6页
第3页 / 共6页
第4页 / 共6页
第5页 / 共6页
第6页 / 共6页
亲,该文档总共6页全部预览完了,如果喜欢就下载吧!
资源描述
一、一般现在时构成:一、一般现在时构成: (一)一般用动词的原形表示 (二)主语是第三人称单数,动词原形变为三单。一般的动词词尾+S。以sh/ch/s/x 结尾的词+es.以辅音字母 Y 结尾的把 Y 变成 i 再+es。辅音字母+o 结尾的+es。二、一般现在时的用法:二、一般现在时的用法: (一) 经常性或习惯性的动作,常与表示频度的时间状语连用(1)表示频度的副词或词组 always ,often, usually, sometimes,once a year,on Sunday 等 。(2)every day, in the morning, every year 等时间状语I leave home for school at 7 every morning. 我每天早上 7 点去上学。(二) 客观真理,客观存在,科学事实。The earth moves around the sun. 地球绕着太阳。Shanghai lies in the east of China. 上海位于中国的东部。(三)表示格言或警句中。Pride goes before a fall. 骄者必败。注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。例:Columbus proved that the earth is round.(四)4) 现在时刻的状态、能力、性格、个性。Xiao Wang writes good English but does not speak well.小王的英语书面表达能力比口语好。比较:Now I put the sugar in the cup.三、一般现在时的构成主要有四种形式三、一般现在时的构成主要有四种形式:(一)(一)bebe 型:句子的谓语动词只有型:句子的谓语动词只有 be(ambe(am,isis 或或 are)are):由 be 动词+名词、形容词、副词、代词、数词或介词短语等一起构成谓语,表示主语的个性、特征或状态。1、I am a student.(主语+be+名词)2、They are hungry.(主语+be+形容词)3、He is out.(主语+be+副词)4、That pen is mine.(主语+be+代词)5、I am fifteen.(主语+be 动词+数词)6、The bike is under the tree.(主语+be 动词+介词短语)其中还有如下几种句型:1、肯定句,只出现 be,如: I am a student.我是一名学生。2、否定句,要在 be 后面加 not,如: She isnt a teacher.她不是教师。3、一般疑问句,要将 be 放在句子开头(注意句首字母大写),句尾用问号,答语用 Yes,主语+be.或 No,主语+be+not.如:Are you ready?(你准备好了吗?) Yes,I am. No,Im not. ( (二二) )行为动词:句中的谓语动词为实义动词行为动词:句中的谓语动词为实义动词1、肯定句,只出现实义动词,如:I get up in the morning.我早晨起床。2、否定句中,要在实义动词前面加 do(does)+not,do(does)作助动词,本身无意义,常与 not 缩写成 dont(doesnt),如:I dont like vegetables.我不喜欢蔬菜。3、一般疑问句,要在句子开头加助动词 Do(does),句尾用问号,简略答语用 Yes,主语+do(does).或 No,主语+do(does)+not.如:Do you like oranges?你喜欢桔子吗?Yes,I do.No,I dont.(三)(三)therethere bebe 型型there be 型句子表示“存在”,其构成为“there be+主语+其他”,表示客观事实。用法遵循“就近原则”,即主语是单数或并列主语中的第一个主语是单数,则用 there is;主语是复数或并列主语中的第一个主语是复数,则用there are。如:1、There is an eraser on the teachers desk.(主语 an eraser 是单数)2、There is an orange,five apples and eight bananas in the bag.(并列主语中的第一个主语 an orange 是单数)(四)情态动词型(四)情态动词型情态动词型句子的构成为“主语+情态动词+动词原形”,情态动词和动词原形一起构成谓语,表示说话人对所叙述的动作或状态的看法。如:1、He can speak a little English.(can+speak)2、May I have a book, please?(may+have)四、一般现在时的变化四、一般现在时的变化 (一)否定形式:(一)否定形式:1、句子中有 be 动词(is, am、are)或情态动词(can、may、need、will),在 be 动词或情态动词后面加上 not。2、如果句子中没有 be 动词或情态动词,那么根据主语在后面加入dont(非三单)或 doesnt(第三人称单数)。(二)一般疑问句:(二)一般疑问句:1 1、句子中有 be 动词或情态动词,将 be 动词或情态动词提前,放到主语前面。注意句中第一人称要改成第二人称。2、如果句子中没有 be 动词或情态动词,那么根据主语判断加入 do(非三单)或 does(第三人称单数)。注意句中第一人称改成第二人称。(三)特殊疑问句:(三)特殊疑问句:1 1、首先分析划线部分的意思,确定用哪个疑问词(what, where, who, when, which, whose, how, how many, how much, what shape, what colour, what doing, where going, what do)2、句子中有 be 动词或情态动词,将 be 动词或情态动词放到疑问词的后面和主语的前面。3、如果句子中没有 be 动词或情态动词,那么根据主语判断加入 do(非三单)或 does(第三人称单数)。注意句中第一人称要改成第二人称。五、习题五、习题一填空1. We often_(play) in the playgound.2. He _(get) up at six oclock.3. _you _(brush) your teeth every morning.4. What (do) _he usually (do)_ after school?5. Danny _(study) English,Chinese,Maths,Science and Art an school.6. Mike sometimes _(go) to the park with his sister.7. At eight at night, she _(watch) TV with his parents.8. _ Mike_(read) English every day?9. How many lessons_your classmate_(have) on Monday?10. What time_his mother_(do) the housework?二、改句子1. Do you often play football after school? (肯定回答)2. I have many books. (改为否定句)3. Gao Shans sister likes playing table tennis (改为否定句)4. She lives in a small town near New York. (改为一般疑问句)5. I watch TV every day. (改为一般疑问句)6. David has got a goal. (改为一般疑问句)7. We have four lessons.(否定句)8. Nancy doesnt run fast (肯定句)9. My dog runs fast. 否定句:一般疑问句:10. Mike has two letters for him.一般疑问句:否定句:11. I usually play football on Friday afternoon.否定句: 一般疑问句: 划线提问12. Su Yang usually washes some clothes on Saturday.否定句: 一般疑问句: 划线提问:13. Mingming usually waters the flowers every day否定句: 般疑问句: 划线提问14. Tom does his homework at home.否定句: 一般疑问句: 划线提问一般现在时练习题答案一、填空1.plays2.gets 3.do brush4.does do5.studies6.goes7.watches8.does read9.does have10.does do11.do have二、改句子:Yes,I doI dont have many books.Gan shans sisters doesnt like play table tennis.She doesnt live in a small village Near New york.Do you watch TV every day?Has David got a boat?We dont have four lesons.Nanry runs fast.My dog doesnt run fastDoes your dog run fast?Does Mike have two letters for him?Mike doesnt have two letters for him.I usually dont play football on Friday afternooon.Do you ususally play football on Friday afternoon?Hat do you usually do on Friday afternoon.
网站客服QQ:2055934822
金锄头文库版权所有
经营许可证:蜀ICP备13022795号 | 川公网安备 51140202000112号