Unit 3 Discovering useful structures (ppt课件) (2)-2022新人教版（2019）《高中英语》必修第一册.pptx

1、 Period 3 Discovering Useful Struures To learn the usage of tag questions and their answers.To learn to use tag questions to role-play a situation and make small conversations.Preview预习compete pretendmillionaudiencecheat有道理;合乎情理;表述清楚假装做某事数百万为竞争同意尽最大的努力1.I feel_(honour)to have a chance to attend this

2、 important conference.2.Once you have_(master)a foreign language,you will have more chances to find a job.3.Two people have been critically_(injure)in a road accident.(2018北京卷北京卷)4.能跟你共进晚餐是我的荣幸。Review复习honouredmasteredinjuredIt is my honour to have dinner with you.疑问句类型疑问句类型1.一般疑问句一般疑问句 e.g.Do you l

3、ike these animals?2.特殊疑问句特殊疑问句 e.g.Who runs fastest in your class?3.选择疑问句选择疑问句 e.g.Do you like to play football or basketball?4.附加疑附加疑问句问句/反义疑问句反义疑问句 e.g.I dont think he will come,will he?Discovering Useful StructuresThe tag questions&their answers反义疑问句以及它们的回答Lead in 导入功能功能语调语调结构结构回答回答它是最好的鸟笼，不是吗？它是

4、最好的鸟笼，不是吗？是的，它是。是的，它是。不，它不是。不，它不是。tag questions反义疑问句Discovering Useful StructuresTag questions are additional questions which expresses the questioners opinion,which is uncertain and needs the listeners approval.是指当提问的人对前面所叙述的事实不敢肯定，而需要向对方加以证实时所提出的问句。功能功能Discovering Useful Structures反义疑问句反义疑问句的升降调的升

5、降调反义疑问句反义疑问句陈述部分用降调陈述部分用降调，问句部分可升问句部分可升可降可降。提问者对陈述部分把握较大时，问句部分用提问者对陈述部分把握较大时，问句部分用降调；降调；对陈述部分不确定，需要对方确认时，对陈述部分不确定，需要对方确认时，用升用升调。调。语调语调Discovering Useful Structures反义疑问句基本构成反义疑问句基本构成 He works hard,doesnt he?He is kind,isnt he?He cant dance,can he?陈述句,Part 1助动词助动词 do/does/did have/hasbe动词动词 am/is/are/

6、was/were情态动词情态动词 can/should/must.Part 2主语主语Part 3结构结构Discovering Useful Structures陈述句Part 1观察前陈述句观察前陈述句肯否定肯否定，据此判断反义疑问，据此判断反义疑问句的肯否定句的肯否定前肯后否，前否后肯前肯后否，前否后肯如：如：They are having an English class,_?She can hardly speak,_?arent theycan sheDiscovering Useful Structures陈述句Part 1陈述部分是肯定句还是否定句的判断陈述部分是肯定句还是否定

7、句的判断句子含有否定副词或否定代词方能算否定句句子含有否定副词或否定代词方能算否定句，带有否，带有否定前缀的词不能算做否定句定前缀的词不能算做否定句否定副词：否定副词：no,not,never,hardly,rarely,seldom.否定代词：否定代词：few,little,nothing,no one,nobody,neither,none.否定前缀：否定前缀：un-，non-，in-，dis-,.如：如：He has never been there before.There is nothing I can do to help.The weather yeasterday was u

8、nusual.否定句否定句否定句否定句肯定句肯定句Discovering Useful Structures关于主语关于主语不定式，动名词做主语时，反义疑问句主语为不定式，动名词做主语时，反义疑问句主语为it主语主语Part 3There be 中，反义疑问句主语为中，反义疑问句主语为there陈述部分主语如果是人称代词主格，保持不变陈述部分主语如果是人称代词主格，保持不变陈述部分主语如果是名词，根据单复数变为陈述部分主语如果是名词，根据单复数变为he,she,it,they陈述部分主语是不定代词，如果指代物，反义疑问句则陈述部分主语是不定代词，如果指代物，反义疑问句则用用it,如果指代人，反

9、义疑问句则用如果指代人，反义疑问句则用he/theyDiscovering Useful StructuresEverthing is ready,_?Everyone is here,_?We are busy,_?The workers are busy,_?The doctor is busy,_?There is a book on the desk,_?Nothing goes well,_?Eating too much is bad for health,_?isnt itisnt hearent wearent theyisnt he/sheisnt theredoes iti

10、snt it主语主语Part 3关于主语关于主语Discovering Useful Structures关于动词关于动词They work hard,_?He walked slowly,_?They have completed the task,_?Nothing can stop them,_?Everyone will take part,_?It appears to be wrong,_?We seldom go to the cinema,_?The Sports Day is coming soon,_?dont theydidnt he havent they can it

11、 wont hedoesnt it do we isnt it 助动词助动词 do/does/didhave/hasbe动词动词 am/is/are/was/were情态动词情态动词 can/should/must.Part 2Discovering Useful Structures常见特殊情况常见特殊情况祈使句祈使句祈使句祈使句的反义疑问句的反义疑问句不区分肯定句还是否定句，为不区分肯定句还是否定句，为will you Give me a hand,_?Leave all the things as they are,_?Dont spoil your child,_?Take his d

12、irty gloves away,_?will you will you will you will you will you will you will youDiscovering Useful StructuresLets do.,表示建议，反义疑问句为：表示建议，反义疑问句为：shall weLet us/me/them/.则视作祈使句，反义疑问句为则视作祈使句，反义疑问句为will youLet us know the time of your arrival,_?Lets try again,_?Let me help you,_?Lets have a look on your

13、book,_？will you will you shall we shall we常见特殊情况常见特殊情况Discovering Useful Structures含情态动词含情态动词had better,反义疑问句的动词要用反义疑问句的动词要用hadYoud better read it by yourself,_?Youd better not stay here,_?Wed better make a change,_?The tree had better be watered often,_?hadnt youhadnt wehadnt ithad you常见特殊情况常见特殊情况D

14、iscovering Useful Structures陈述部分的谓语是陈述部分的谓语是used to 时，疑问部分用时，疑问部分用didnt+主语或主语或 usednt+主主语。语。He used to take pictures there,_?The old man used to get up early,_?They used to have just one class in the morning,_?The boy used to walk to school,_?usednt/didnt heusednt/didnt heusednt/didnt theyusednt/did

15、nt he常见特殊情况常见特殊情况Discovering Useful Structures回答反意疑问句通常应根据实际情况来确定回答反意疑问句通常应根据实际情况来确定：You are asleep,arent you?You arent asleep,are you?反义疑问句回答只需注意事实，肯定即用反义疑问句回答只需注意事实，肯定即用yes，否定用，否定用no，无，无需考虑句子原本是前否后肯或是前肯后否。需考虑句子原本是前否后肯或是前肯后否。回答回答No,Im not.No,Im not.课本p40-1Read the conversations below and underline

16、the tag questions and their answers.What functions do the tag questions have?1.Amy:Its not a real sport,is it?Shen Qi:Yes,it is.2.Adam:That sounds interesting,doesnt it?Julie:Sure,it does.3.Lin Tao:Hi!Its a beautiful day,isnt it?Han Jing:Yes,it is.Im going to play soccer.Can you come along and join

17、us?Lin Tao:Sorry,I cant.I ve got to meet my adviser.By the way,our school soccer team won at last,didnt they?Han Jing:No,they didnt.Its too bad.Function:expressing uncertainty表达不确定性 Function:asking for approval寻求认可 Function:asking for approval寻求认可 Function:expressing uncertainty表达不确定性Complete the co

18、nversations with appropriate tag questions or correct answers.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:You re right,it is.Lets ask Xia Lei if she wants to join a team.A:She likes soccer,_?B

19、:_.But she loves volleyball.She could be in the volleyball team.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,he is right behind me,_?C:Yes,I am.No,it isntcant weisnt itdoesnt she

20、No,she doesntisnt heis heisnt he课本p40-2Discovering 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 seldom came here,_?5.Everything seems all right,_?6.No one failed in the exam,_?7.They have no time to visit the

21、 museum,_?8.He dislikes the two subjects,_?did sheis there has he did he doesnt it did he 练一练练一练do they doesnt he Discovering Useful Structures9.These tools are useless now,_?10.He used to get up at 6:30,_?11.Lets go there by bus,_?12.Let us go to play football,_?13.Dont forget to give Polly some food and change her water,_?14.Pass me the dictionary,_?Yes,with pleasure.15.There is little water in the glass,_?16.There wont be any concert this Saturday evening,_?arent they didnt/usednt he shall we will you will you 练一练练一练will youis there will there