2021学年Unit 3 Sports and fitness教学ppt课件

这是一份2021学年Unit 3 Sports and fitness教学ppt课件，共20页。PPT课件主要包含了doesnt he，can he，hasnt it，arent you，didnt you，could he，isnt it，didnt he，will he，does he等内容，欢迎下载使用。

ⅠBasic Knwledge
疑问句的主语和谓语动词要与陈述句部分的主语和谓语动词保持一致。
它前后有两个部分，遵循前肯后否，前否后肯的基本原则。
反意疑问句是附加在陈述句之后，对陈述句所表示的事实或观点提出疑问的句子。即：陈述句＋附加疑问句
He likes playing basketball, ________ ?He can’t swim, ______ ?Everything has gne wrng, ________ ?
1、附加问句的主语和陈述部分的主语在人称,数上保持一致的几种情况
①当must 作"必须"讲时,其反意疑问句部分用 needn’t; 当含有mustn’t (不允许,禁止)时,其反意疑问句部分用must/may。Yu must g nw, ___________? Yu mustn’t smke here, _____________?
2、陈述部分含有must 的反意疑问句
must/may yu
② 当must 表示推测,即must作 “一定,准是” 讲时，疑问部分要根据实际情况而定。
Yu must be hungry nw, _____________? Yu must have heard abut it, ______________? Yu must have watched that ftball match last night , _____________?
Yu used t sleep with the windws pen, _____________________?
3、陈述部分含有 used t 的反意疑问句，其反意疑问部分用usedn’t或didn’t均可.
didn't yu/ usedn't yu
He ught t attend the lecture, ____________________?
4、陈述部分含含有 ught t 的反意疑问句, 其反意疑问部分用 ughtn’t或 shuldn’t均可。
ughtn't he/ shuldn't he
He culd hardly walk withut a stick, ________?
5、陈述部分含有否定词或半否定词的反意疑问句
当陈述部分带有 seldm, hardly, scarcely, never, few, little, nthing, nbdy 等否定词或半否定词时, 反意疑问部分的动词用肯定形式。
Tm dislikes playing tennis, ___________? It’s unfair, _______?
6、如果陈述部分含有由表示 “否定” 意义的前缀构成的词，其反意疑问部分一般用否定式。
(1) 当陈述部分带有宾语从句时,反意疑问部分的主语应和主句的主语保持一致.如:He said that he wuld cme t my birthday party, __________?(2) 陈述部分的主句谓语动词是 think, believe, suppse, expect, imagine ，且主句主语为第一人称时，反意疑问部分的主语和谓语与宾语从句的主语和谓语保持一致；陈述部分的主句主语为第二、三人称时后面的疑问部分的主语和谓语与陈述部分主句的主语、谓语一致。I dn’t believe he will succeed, ________? He desn’t believe she will succeed, __________?
7、陈述部分含有宾语从句的反意疑问句
Open the dr, __________________? Let’s g ut fr a walk, ________?Let us g hme nw, ___________________?
祈使句后加反意疑问句,不表示反意,而表示一种语气. 其结构为:（1）否定祈使句,+ will yu? （2）肯定祈使句,+ will yu / wn’t yu ?（3）Let’s … , + shall we? （4）Let us … ,+ will/ wn’t yu? （4）Let +第三人称…,+ will yu?
8、祈使句的反意疑问句
will yu / wn’t yu
9、回答反意疑问句时应遵循以下原则:
(1) 不管是陈述部分为否定，还是附加问句为否定，回答时只看所提到的事情是否已/会发生。如果发生了,用肯定回答,否则用否定回答.如:当对方问你Yu aren’t a teacher, are yu? 或 Yu are a teacher, aren’t yu?时,你只要听懂yu和 teacher两个单词即可,如果你是老师,回答Yes, I am. 否则,回答N, I am nt.(2) 要么肯定到底,要么否定到底,不要出现类似于Yes, I dn’t 和 N, I d 的形式.
1. A: lt's nt ging t rain, is it? B: ___________.lt's a gd day fr sprts. A: Then we can play ftball,___________? B:_____________. We dn't have a ball.2. A: It's Sprts Day next Thursday,________? B: Yu're right, it is. Let's ask Xia Lei if she wants t jin a team. A: She likes sccer, __________? B:_______________.But she lves wlleyball. She culd be in the vllyball team. 3. A: It's time fr badmintn class. Where is the cach? He's late, _________? B: lt's been 10 minutes already. He isn't cming, _______? A: Cl！ Wve can have a gd time. That' great! B: Shh! A: Oh n, he's right behind me, ________? C: Yes, Iam!
1. Cmplete the cnversatins with apprpriate tag questins r crrect answers.Then act them ut.
N, it isn't
N, we can't
N, she desn't
①—Yu haven’t been here lng, have yu? —_____________.I am a newcmer here.②Neither yu nr I have dne such silly things, ________?
2. Cmplete the sentences.
N, I haven't
neither…nr…或bth…and…作主语时，反义疑问句句的主语要用相应的复数形式。
③What a lng time we’ve been waiting, ________?④Mrs. Black desn’t believe her sn is able t design a digital camera, ________? ⑤It must have rained last night, _________?
感叹句后加反意疑问句时，其反意疑问句需用be的一般现在时态的否定形式
⑥Jhn tld yu that there wasn’t anyne in the rm at that time, ___________?⑦Jhn, yu mp the flr, ____________________?⑧Let’s have a break, _________?
⑨Mr. Smith, let us have a break, __________________?⑩There is n dubt abut it, ________? ⑪ I am yur friend, _______________________?
aren't I/ am I nt（正式）
3. Wrkin pairs.Use tag questins t rle-play ne f the situatins belw.