Unit3 Discovering useful structures （ppt课件）-2022新人教版（2019）《高中英语》必修第一册.pptx

1、“Discovering Useful Structures”I wish to have a bite,may I?You are hungry,arent you?反意疑问句（Tag question）概念：又称附加疑问句，主要用于口语，由陈述句加简短附加问句构成，其作用是说话人向对方验证自己的陈述或者判断，也可以用于祈使句表示请求或者建议。反意疑问句（Tag question）-Jim likes playing basketball,_?-Yes,he _.-He cant swim,_?-No,he _.doesnt hecan hecantdoesShe is not weak,？

2、_-is she附加疑问句的结构：陈述部分，助动词 do/does/did have/has/hadbe动词情态动词+主语附加疑问句的组成规则:前肯后否，前否后肯2.反义疑问句的反义疑问句的主语问题主语问题3.反义疑问句动反义疑问句动词选择词选择1 反义疑问句的反义疑问句的两种两种形式形式4.反义疑问句的回反义疑问句的回答答形式口诀：前肯后否，前否后肯1.1.肯定式陈述部分肯定式陈述部分+否定式疑问部分否定式疑问部分例：例：He looks like his father,doesnt he She was ill yesterday,wasnt she?2.2.否定式陈述部分否定式陈述部分+

3、肯定式疑问部分肯定式疑问部分例：例：He doesnt need to work so late,does he？He cant ride a bike,can he?形式3.3.陈述陈述部分含有部分含有seldom,hardly,never,few,nothingseldom,hardly,never,few,nothing等等否定词否定词，其，其疑问部分要用疑问部分要用肯肯定定式式He has few friends here,?She said nothing,?You seldom go climbing,?does hedid shedo you形式4.4.若陈述部分含有带若陈述部分

4、含有带否定前缀否定前缀的词，疑问部分仍用的词，疑问部分仍用否定否定式式It is unfair,?You dislike singing,?She disagreed with you,?isnt itdont youdidnt she回答口诀：肯定Yes,否定No.在回答反义疑问句时，事实是肯定的，就用Yes;事实是否定的就用No.例：例：-He likes playing football,doesnt he?他喜欢踢足球，不是吗？他喜欢踢足球，不是吗？-Yes,he does./No,he doesnt.是的，他喜欢。是的，他喜欢。/不，他不喜欢。不，他不喜欢。回答前否后肯时，回答yes

5、或no与汉语的意思正好相反。这种回答时，yes要翻译为“不”，no翻译为“是”例：-Lucy didnt attend the meeting,did she?露西没有参加会议，是吗？-Yes,she did./No,she didnt 不，她有参加。/是的，她没参加。主语1.1.陈述部分主语是陈述部分主语是he,shehe,she或某人或某人,疑问句主语为疑问句主语为he,shehe,she等代词等代词例：例：You/He/Tom can play basketball well ,cant you/he?That is a new car,?That isnt your teacher,?

6、These are your friends,?isnt itis he/shearent they2.2.当当陈述陈述部分主语是部分主语是指示代词指示代词this,that/these,those this,that/these,those 指指物物时，时，疑问部分主语用疑问部分主语用 it/theyit/they；指；指人人时，疑问句主语用时，疑问句主语用相应的人称代词相应的人称代词主语3.3.陈述句的主语是陈述句的主语是等不定代词时，反意疑问部分的主语多用等不定代词时，反意疑问部分的主语多用4.4.陈述句的主语是陈述句的主语是等不定代词时，等不定代词时，反意疑问部分的主语多用反意疑问部分

7、的主语多用Nobody says a word about the accident,Everything seems all right,主语5.5.陈述句如果是陈述句如果是结构时，疑问部分仍用结构时，疑问部分仍用6 6.陈述部分为陈述部分为从句时，反意疑问句从句时，反意疑问句部分的动词及主语与部分的动词及主语与thatthat从句内的动词和主语保持一致。从句内的动词和主语保持一致。I think that he has done his work,We think that math is very useful,I dont think that you can do it,动词 1.基

8、本原则：当基本原则：当陈述部分含有情态动词时，疑问陈述部分含有情态动词时，疑问部分部分通常通常会会重复前重复前面的情态动词面的情态动词We should help him,shouldnt we?You can drive there,cant you?当祈使句为当祈使句为Lets时时,表表建议建议，疑问部分用，疑问部分用shall we?shall we?当祈使句为当祈使句为Let us时时,表表建议建议，后用，后用shall shall we?we?；表表请求，请求，后用后用will will you?you?Lets go out for a walk,?Let us go shoppi

9、ng together,?Let us take a look,?shall weshall wewill you含含其他情态动词其他情态动词的的反意疑问句反意疑问句陈述部分陈述部分疑问部分疑问部分例例 句句maymightnt/cant They may come from Shanghai,mightnt/cant they?Used todidnt/usedntHe used to take pictures there,didnt he?/usednt he?Ought toshouldnt/oughtntHe ought to know what to do,oughtnt he?/

10、shouldnt he?had betterhadntHed better leave here,hadnt he?have/has/had todont/doesnt/didntWe have to get up early,dont we?基本原则：若陈述部分为基本原则：若陈述部分为祈使句祈使句，疑问部分通常用，疑问部分通常用will/wont you?Close the door,will/wont you?Dont make a noise here,will you?陈述部分为陈述部分为祈使句祈使句的反意疑问句的反意疑问句当祈使句为当祈使句为Lets时时,表表建议建议，疑问部分用，疑

11、问部分用shall we?当祈使句为当祈使句为Let us时时,表表建议建议，后用，后用shall we?；表表请求，请求，后用后用will you?Lets go out for a walk,?Let us go shopping together,?Let us take a look,?祈使句祈使句为为Lets或或Let usshall weshall wewill you动词2.若陈述部分用若陈述部分用must表示表示“必须必须”，疑问部分用，疑问部分用 mustnt 或或 neednt;若陈述部分有若陈述部分有mustnt表示表示“禁止禁止”时，疑问部分时，疑问部分只用只用must

12、.must must 表示推测表示推测We must set off early,mustnt/neednt we?People mustnt smoke here,must they.She must have read the novel,hasnt she？3.3.陈述部分谓语为陈述部分谓语为havehave、hashas、hadhadThey have a house in the town,He has lunch at school,have(has)to(have(has)to(必须必须)dodo例：例：They have to go there,dont they？He has

13、 to leave early,doesnt he？动词4.4.陈述部分的谓语是陈述部分的谓语是had better(had better(最好最好)时时,疑问部分用疑问部分用hadnthadnt。例：例：Youd better have a good rest,hadnt you？5.5.陈述句中的谓语动词是陈述句中的谓语动词是wishwish时，疑问部分常用时，疑问部分常用maymay。You wish to go home,may you6.6.陈述部分用陈述部分用used to+used to+主语主语时，问句部分用时，问句部分用didnt+didnt+主语主语？或或usednt+us

14、ednt+主语主语？He used to live in the country,didnt he?/usednt he?They used to be good friends,didnt they?/usednt they?(6)(6)陈述部分情态动词陈述部分情态动词mustmust表表“必须必须”时时,疑问部分用疑问部分用mustntmustnt或或 neednt neednt You must work hard next term,mustnt/neednt you?I must answer the letter,mustnt/neednt I?must must 表示推测表示推测

15、Her mother must be a teacher,isnt she？She must have read the novel,hasnt she？7.陈述部分陈述部分I amI am时，疑问部分要用时，疑问部分要用 arent arent I/am I not.Im as tall as your sister，arent I?8.反意疑问句的陈述部分主语是否为反意疑问句的陈述部分主语是否为第一人称第一人称A.主语是第一人称（注意否定转移），且含有主语是第一人称（注意否定转移），且含有think,believe,think,believe,expect,imagine,supposee

16、xpect,imagine,suppose等引导的宾语从句：等引导的宾语从句：I dont think he is bright,is he?We believe she can do it better,cant she?B.如果主语如果主语不是第一人称不是第一人称则疑问部分与主句相对应构成反意疑问句则疑问部分与主句相对应构成反意疑问句He thought you were wrong,didnt he?不能说不能说werent you?Im afraid he wont finish it today,?will he9.当陈述部分是当陈述部分是Im sure that,；we are s

17、ure；Im afraid that；We are sure that 等，后面等，后面跟宾语从句时，反意疑问句跟宾语从句时，反意疑问句与与宾语宾语从句保持一致从句保持一致。Read the conversations below and underline the tag questions and their answers.What functions do the tag questions have?1.Amy:Its not a real sport,?Shen Qi:.2.Adam:That sounds interesting,?Julie:Sure,.3.Lin Tao:Hi

18、!Its a beautiful day,?Han Jing:.Im going to play soccer.Can you come along and join us?Lin Tao:Sorry,I cant.I ve got to meet my adviser.By the way,our school soccer team won at last,?Han Jing:.Its too bad.Function:to make comfirmationFunction:asking for opinionFunction:asking for opinionFunction:to

19、make comfirmationis itYes,it isisnt itdoesnt itit doesYes,it isdidnt theyNo,they didntIt is a real sport.It sounds interesting.a beautiful day.won.Discovering Useful Structures1.Linda ate nothing this morning,_?2.Theres hardly any milk in the bottle,_?3.He has never ridden a horse before,_?4.He seld

20、om came here,_?5.Everything seems all right,_?6.No one failed in the exam,_?7.They have no time to visit the museum,_?8.He dislikes the two subjects,_?did sheis there has he did he doesnt it did he do they doesnt he 1.Theres little meat left in the fridge,is there?_.Ill get some on my way home._.We

21、still have much meat.2.Its her birthday tomorrow,isnt it?_.Lets have a surprise party for her._.It should be in next month.3.Your father never watches the drama series on TV,does he?_.He thinks the drama series are boring and dull._.He likes the drama series very much.No,there isnt Yes,it is No,he d

22、oesntYes,there is.No,it isnt.Yes,he does.Exercises P.40 1.A:Its not going to rain,is it?B:_.Its a good day for sports.A:Then we can play football,_?B:_.We dont have a ball.2.A:Its Sports Day next Thursday,_?B:Youre right,it is.Lets ask Xia Lei if she wants to join a team.A:She likes soccer,_?B:_.But

23、 she loves volleyball.She could be in the volleyball team.No,it isntcant weNo,we cantisnt itdoesnt sheNo,she doesntExercises P.40 3.A:Its time for badminton class.Where is the coach?Hes late,_?B:Its been 10 minutes already.He isnt coming,_?A:Cool!We can have a good time.Thats great!B:Shh!A:Oh no,hes right behind me,_?C:Yes,I am!isnt heis heisnt heCREDITS:This presentation template was created by Slidesgo,including icons by Flaticon,and infographics&images by FreepikThanks!改进方案清人制度欣赏过后的巩固白富美团队的讲座作业思路介绍发展规划欣赏学习组内欣赏欣赏学习组内小结欣赏学习作业展示欣赏学习大大讲座第一周第二周第三周第四周