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1、一般现在时及习题一般现在时及习题一、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(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。(二)主语是第三人称单数,动词原形变为三单。一般的动词词尾一般的动词词尾+S+S。以。以sh/ch/s/xsh/ch/s/x 结尾的词结尾的词+es.+es.以辅音字母以辅音字母 Y Y 结尾的把结尾的把 Y Y 变成变成 i i 再再+es+es。辅音字母。辅音字母+o+o 结结尾的尾的+es+es。二、一般现在时的用法:二、一般现在时的用法:(一)(一)经常性或习惯性的动作,常与表示频度的时间状语连用(经常性或习惯性的动作,
2、常与表示频度的时间状语连用(1 1)表示频度)表示频度的副词或词组的副词或词组 always,often,usually,sometimesalways,often,usually,sometimes,once a yearonce a year,on Sundayon Sunday等等。(。(2 2)every day,in the morning,every yearevery day,in the morning,every year 等时间状语等时间状语I leave home for school at 7 every morning.I leave home for school
3、at 7 every morning.我每天早上我每天早上 7 7 点去上学。点去上学。(二)(二)客观真理,客观存在,科学事实。客观真理,客观存在,科学事实。The earth moves around the sun.The earth moves around the sun.地球绕着太阳。地球绕着太阳。Shanghai lies in the east of China.Shanghai lies in the east of China.上海位于中国的东部。上海位于中国的东部。(三)表示格言或警句中。(三)表示格言或警句中。Pride goes before a fall.Pride
4、 goes before a fall.骄者必败。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。用一般现在时。例:例:Columbus proved that the earth is round.Columbus proved that the earth is round.(四)(四)4)4)现在时刻的状态、能力、性格、个性。现在时刻的状态、能力、性格、个性。Xiao Wang writes good English but does not speak well.Xiao Wang
5、writes good English but does not speak well.小王的英语书面表达能力比口语好。小王的英语书面表达能力比口语好。比较:比较:Now I put the sugar in the cup.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):由由 bebe 动词动词+名词、形容词、副词、代词、数词或介词短语等一起构成谓语,名词、形容词、副词、代词、数词或介
6、词短语等一起构成谓语,表示主语的个性、特征或状态。表示主语的个性、特征或状态。1 1、I am a student.(I am a student.(主语主语+be+be+名词名词)2 2、They are hungry.They are hungry.(主语(主语+be+be+形容词)形容词)3 3、He is out.(He is out.(主语主语+be+be+副词副词)4 4、That pen is mine.(That pen is mine.(主语主语+be+be+代词代词)5 5、I am fifteen.(I am fifteen.(主语主语+be+be 动词动词+数词数词)6
7、 6、The bike is under the tree.(The bike is under the tree.(主语主语+be+be 动词动词+介词短语介词短语)其中还有如下几种句型:其中还有如下几种句型:1 1、肯定句,只出现、肯定句,只出现 bebe,如:,如:I am a student.I am a student.我是一名学生。我是一名学生。2 2、否定句,要在、否定句,要在 bebe 后面加后面加 notnot,如:,如:She isnt a teacher.She isnt a teacher.她不是教师。她不是教师。3 3、一般疑问句,要将、一般疑问句,要将 bebe 放
8、在句子开头放在句子开头(注意句首字母大写注意句首字母大写),句尾用问号,句尾用问号,答语用答语用 YesYes,主语,主语+be.+be.或或 NoNo,主语,主语+be+not.+be+not.如:如:Are you ready?Are you ready?(你准备好了吗(你准备好了吗?)YesYes,I am.I am.NoNo,Im not.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 1、肯定句,只出现实义动词,如:、肯定句,只出现实义动词,如:I get up in the morning.I get up in the morning
9、.我早晨起床。我早晨起床。2 2、否定句中,要在实义动词前面加、否定句中,要在实义动词前面加do(does)+notdo(does)+not,do(does)do(does)作助动词,本作助动词,本身无意义,常与身无意义,常与 notnot 缩写成缩写成 dont(doesnt)dont(doesnt),如:,如:I dont like vegetables.I dont like vegetables.我不喜欢蔬菜。我不喜欢蔬菜。3 3、一般疑问句,要在句子开头加助动词、一般疑问句,要在句子开头加助动词Do(does)Do(does),句尾用问号,简略答语,句尾用问号,简略答语用用 YesY
10、es,主语,主语+do(does).+do(does).或或 NoNo,主语,主语+do(does)+not.+do(does)+not.如:如:Do you like oranges?Do you like oranges?你喜欢桔子吗你喜欢桔子吗?YesYes,I do.I do.NoNo,I dont.I dont.(三)(三)there bethere be 型型 there there bebe 型句子表示“存在”,其构成为“there型句子表示“存在”,其构成为“there be+主语be+主语+其他”,表示其他”,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
11、个主语客观事实。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,则用是单数,则用 there isthere is;主语是复数或并列主语中的第一个主语是复数,则用;主语是复数或并列主语中的第一个主语是复数,则用there arethere are。如:。如:1 1、There is an eraser on the teachers desk.(There is an eraser on the teachers desk.(主语主语 an eraseran eraser 是单是单数数)2 2、ThereThere isis anan orangeorange,fivefiv
12、e applesapples andand eighteight bananasbananas inin thethe bag.(bag.(并并列主语中的第一个主语列主语中的第一个主语 an orangean orange 是单数是单数)(四)情态动词型(四)情态动词型情态动词型句子的构成为“主语情态动词型句子的构成为“主语+情态动词情态动词+动词原形”,情态动词和动词动词原形”,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: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 1、He can speak a little English.(can+sp
13、eak)He can speak a little English.(can+speak)2 2、May I have a book,please?(may+have)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 1、句子中有句子中有 bebe 动词动词(is,is,amam、areare)或情态动词或情态动词(cancan、maymay、needneed、willwill),在在 bebe 动词或情态动词后面加上动词或情态动词后面加上 notnot。2 2、如果句子中没有、如果句子中没有 be
14、be 动词或情态动词,那么根据主语在后面加入动词或情态动词,那么根据主语在后面加入dont(非三单dont(非三单)或或 doesnt(第三人称单数)。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、句子中有 bebe 动词或情态动词,将动词或情态动词,将 bebe 动词或情态动词提前,放到主语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。前面。注意句中第一人称要改成第二人称。2 2、如果句子中没有如果句子中没有 bebe 动词或情态动词,动词或情态动词,那么根据主语判断加入那么根据主语判断加入 do(do(非三非三单单)或或 doesd
15、oes(第三人称单数)。注意句中第一人称改成第二人称。(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,首先分析划线部分的意思,确定用哪个疑问词确定用哪个疑问词(what,what,where,where,who,who,when,when,which,whose,how,how many,how much,what shape,what colour,what which,whose,how,how many,how much,what shape,what colour,what doing,where going,what
16、 do)doing,where going,what do)2 2、句子中有、句子中有 bebe 动词或情态动词,将动词或情态动词,将 bebe 动词或情态动词放到疑问词的后动词或情态动词放到疑问词的后面和主语的前面。面和主语的前面。3 3、如果句子中没有如果句子中没有 bebe 动词或情态动词,动词或情态动词,那么根据主语判断加入那么根据主语判断加入 do(do(非三非三单单)或或 doesdoes(第三人称单数)。注意句中第一人称要改成第二人称。(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、习题一填空一填空1.We often_(play)in the playgound.
17、1.We often_(play)in the playgound.2.He _(get)up at six oclock.2.He _(get)up at six oclock.3._you _(brush)your teeth every morning.3._you _(brush)your teeth every morning.4.What(do)_he usually(do)_ after school?4.What(do)_he usually(do)_ after school?5.Danny _(study)English,Chinese,Maths,Science and
18、Art an school.5.Danny _(study)English,Chinese,Maths,Science and Art an school.6.Mike sometimes _(go)to the park with his sister.6.Mike sometimes _(go)to the park with his sister.7.At eight at night,she _(watch)TV with his parents.7.At eight at night,she _(watch)TV with his parents.8._ Mike_(read)Eng
19、lish every day?8._ Mike_(read)English every day?13.Mingming usually waters the flowers every day13.Mingming usually waters the flowers every day否定句否定句:般疑问句般疑问句:划线提问划线提问14.Tom does his homework at home.14.Tom does his homework at home.否定句否定句:一般疑问句一般疑问句:划线提问划线提问一般现在时练习题答案一般现在时练习题答案一、填空一、填空1.1.2.2.3.3.
20、4.4.5.5.6.6.7.7.8.8.9.9.10.10.11.11.二、改句子:二、改句子:Yes,I doYes,I doI dont have many books.I dont have many books.Gan shans sisters doesnt like play table tennis.Gan shans sisters doesnt like play table tennis.She doesnt live in a small village Near New york.She doesnt live in a small village Near New y
21、ork.Do you watch TV every day?Do you watch TV every day?Has David got a boat?Has David got a boat?We dont have four lesons.We dont have four lesons.Nanry runs fast.Nanry runs fast.My dog doesnt run fastMy dog doesnt run fastDoes your dog run fast?Does your dog run fast?Does Mike have two letters for
22、 him?Does Mike have two letters for him?Mike doesnt have two letters for him.Mike doesnt have two letters for him.I usually dont play football on Friday afternooon.I usually dont play football on Friday afternooon.Do you ususally play football on Friday afternoon?Do you ususally play football on Friday afternoon?Hat do you usually do on Friday afternoon.Hat do you usually do on Friday afternoon.playsplaysgetsgetsdo brushdo brushdoes dodoes dostudiesstudiesgoesgoeswatcheswatchesdoes readdoes readdoes havedoes havedoes dodoes dodo havedo have