第三章 第一节 陈述句

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,第三章 句 型,在英语中,根据句子用途的不同,可以分为陈述句、疑问句、祈使句和感慨句四类。此外,there be句型作为一种特殊而重要的句型,在小学阶段也应注意掌握。,第一页，编辑于星期日：八点 三十五分。,知识梳理,一、陈述句的概念,陈述句是用来陈述事实或者说话人的看法的句子。它包括肯定句和否认句两种。在书写时句末用句点,在朗读时用降调。,如：This is a nice book.(),Susan likes maths very much.(),My father doesnt go to work on weekends.(),They arent going to climb the mountain this Saturday.(),第一节 陈述句,第二页，编辑于星期日：八点 三十五分。,二、肯定句变否认句的根本方法,1.句中有be动词的句子：变为否认句时只需在be动词后加not。,如：(1)I am in Grade Six this year.Im not(I am not)in Grade Six this year.,(2)Mike is going to play football this afternoon.,Mike isnt(is not)going to play football this afternoon.,(3)These are red apples.These arent(are not)red apples.,(4)It was a fine day yesterday.It wasnt(was not)a fine day yesterday.,(5)We were happy at that time.We werent(were not)happy at that time.,第三页，编辑于星期日：八点 三十五分。,2.句中含有情态动词的句子：变为否认句时只需在情态动词后加 not。,如：(1)Peter can fly.Peter cant(can not)fly.,(2)You should stop smoking now.You shouldnt(should not)stop smoking now.,3.实义动词的否认句:谓语动词为行为动词的句子变为否认句时,要根据时态选用do的相应形式(do,does,did),并在其后加 not。,如：(1)I like listening to music.I dont like listening to music.,2My father likes playing sports.My father doesnt like playing sports.,第四页，编辑于星期日：八点 三十五分。,(3)Grandma does housework every day.Grandma doesnt do housework every day.,(4)He did his homework last night.He didnt do his homework last night.,【注】加do not,does not或did not改为否认句以后,要把原句的动词改为动词原形,特别是当原句中的谓语动词是第三人称单数形式does或过去式did时,改为否认句一定要记得在doesnt或didnt之后加上do。,第五页，编辑于星期日：八点 三十五分。,4.几种特殊形式的否认句,(1)肯定句中含有every的合成词时,变为否认句时将其改为no的合成词。,如：Everything is ready Nothing is ready,(2)肯定句中含有always,usually或ever时,变为否认句时将其改为never。,如：He is always late for school He is never late for school,I usually go to the park on foot.I never go to the park on foot.,(3)肯定句中含有many或much时,变为否认句时将其改为few或little。,如：Many students know him Few students know him,There is much milk in the bottle.There is little milk in the bottle.,第六页，编辑于星期日：八点 三十五分。,(4)肯定句中含有both,both and 或all时,变为否认句时将其改为neither,neither nor 或none,并注意谓语动词要相应变化。,如：Both of us are students Neither of us is a student,Both you and I are right.Neither you nor I am right.,All the students are in the classroom.None of the students is in the classroom.,(5)“I think 句式变为否认句时,只要在think之前加 dont 即可。,如：I think you are right.I dont think you are right.,第七页，编辑于星期日：八点 三十五分。,考点精析,考点1 考查陈述句根底句型的运用能力,【例1】根据图片将句子补充完整,每空一词。,1.This ruler is _.,2.They _ _ _ .,第八页，编辑于星期日：八点 三十五分。,解析：此题考查学生对陈述句根本句型的运用能力。第1小题的句子形式是：主语+系动词+表语。因此,横线上需要填上一个单词或短语对主语进行修饰或限定。第2题只给出了主语They,只要能根据图片内容写出符合图意的句子,并保证句子语句通顺和语法正确就可以了。,答案：1.long,2.like playing football/are playing football,第九页，编辑于星期日：八点 三十五分。,举一反三,1.改错,选出错误项的字母编号并改正在后面的横线上。,()(1)My brother is playing piano.,A B C,()(2)Some boys comes in happily.,A B C,()(3)Its going to warm tomorrow.,A B C,C,B,B,playing the piano,come in,be warm,第十页，编辑于星期日：八点 三十五分。,2.用括号内所给动词的适当填空。,(1)There _ some bags in the room.The black one _ mine.(be),(2)A horse _ run,but it _ fly.(can),(3)David always _ his homework at 7:00 p.m.(do),(4)Look,the fish _ in the water.They are so cute.swim,are,is,can,cant,does,are swimming,第十一页，编辑于星期日：八点 三十五分。,考点2 考查陈述句的句式转换,【例2】按要求转换句型。,1.Today is a rainy day.(改为否认句),2.He does sports three times a week.(改为否认句),解析：此题考查肯定句和否认句的转换,要注意转换规那么。第1小题中有be动词 is,那么只需要在is之后加上not 即可；第2小题中没有be 动词,而是行为动词do的三单形式does,在改写否认句的时候,要先加上doesnt,然后再将原来的does 复原为do,放在does之后,这种题是最容易出错的。,答案：1.Today isnt a rainy day.,2.He doesnt do sports three times a week.,第十二页，编辑于星期日：八点 三十五分。,举一反三,根据括号内动词的提示,将以下句子改为否认句。,1.Sarah_ (can)swim.,2.I _(do)want to eat more candies.,3.A tiger _(can)fly,but it can jump.,4.You _(should)put on your jacket.,5.You_ (must)smoke here.,6.It_ (was)rainy yesterday.,can,t,don,t,can,t,shouldn,t,mustn,t,wasn,t,第十三页，编辑于星期日：八点 三十五分。,过关检测,1.,单项填空。,()1.My father,_,like apples.,A isnt B.doesnt C dont,()2.I,_,like pop music.,A isnt B.doesnt C dont,()3.I,_,go to school yesterday.,A do,B dont,C didnt,()4.Whats this?,_,a book.,AThat is,B Its,C This,()5.I,_,many birthday presents.,Aam,B has,Chave,B,C,C,B,C,第十四页，编辑于星期日：八点 三十五分。,()6.My mother,_,badminton well.,Ais play,Bplay,Cplays,()7.I,_,free last Sunday.,Aam,B did,Cwas,()8.The girl reads,_,.,Aloud,B loudly,Cloudy,()9.My mother would like,_,some meat.,Abuy,B buying,Cto buy,()10.Here is a card,_,your father.,Ain,B from,Cto,C,C,B,C,B,第十五页，编辑于星期日：八点 三十五分。,二、将以下句子改为否认句,每空一词。,1.This is a desk.,This _ a desk.,2.My sister can draw pictures.,My sister _ draw pictures.,3.We do morning exercises every day,We _ _ morning exercises every day,4.Mike does his homework after dinner.,Mike _ _his homework after dinner.,5.My grandparents did sports in the garden yesterday.,My grandparents _ _ sports in the garden yesterday.,i,sn,t,c,an,t,d,on,t,do,d,oesn,t,do,d,idn,t,do,第十六页，编辑于星期日：八点 三十五分。,6 There is something wrong with my bike,There _ _/_ _ wrong with my bike,7 Both Joan and I are in Class One.,_ Joan _ I _ in Class One,8 All of us can swim,_ _ _ can swim,9 You can play basketball here.,You _ play