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R 七年级上册Unit 3 Is this your pencil?Is this _(you) pencil? Yes, _ _.yourit isReview Is this _( I ) book?No,_ _.This is _ ( you ) book.myit isntyourIs _ _( he ) book?_,it is.thishisYesNew words excuse v.me pron.excuse meteacher n.about prep.yours pron.thank v.for prep.help v.&n.welcome adj.原谅；宽恕原谅；宽恕我我劳驾，请原谅劳驾，请原谅老师；教师老师；教师关于关于你的；你们的你的；你们的感谢；谢谢感谢；谢谢为了；给；对为了；给；对帮助；援助帮助；援助受欢迎的受欢迎的Grammar FocusIs this your pencil?Yes, it is. Its mine. / No, it isnt. Its hers.Is this his green pen?Yes, it is / No, it isnt. The blue pen is his.Is that your schoolbag?Yes, it is. / No, it isnt. Its his.Are these your books?Yes, they are. / No, they arent. Theyre hers.Are those her keys?Yes, they are. / No, they arent. Theyre mine. Attention!its it isisntis notarentare notLanguage points一、含有动词一、含有动词be的一般疑问句的一般疑问句【观察领悟】【观察领悟】仔细观察例句仔细观察例句, 体会含有动词体会含有动词be的一般疑问句及其回的一般疑问句及其回答。答。 1. Is this a map? 这是一张地图吗这是一张地图吗? 2. Are you a student? 你是一名学生吗你是一名学生吗? 3. Is that a plane? 那是一架飞机吗那是一架飞机吗? Yes, it is. 是的是的, 它是。它是。4. Is this your watch? 这是你的手表吗这是你的手表吗? No, it isnt. 不不, 它不是。它不是。5. Are you a doctor? 你是名医生吗你是名医生吗? No, Im not. 不不, 我不是。我不是。【句型剖析】【句型剖析】 （1）一般疑问句的）一般疑问句的概念概念：能用能用yes或或 no回答的问句回答的问句 就叫就叫一般疑问句一般疑问句。 （2）含有含有be动词的陈述句变一般疑问句的方法动词的陈述句变一般疑问句的方法： 将将be动词提至句首动词提至句首 将将句末标点改为问号句末标点改为问号 将将第一人称变为第二人称第一人称变为第二人称，即，即 I 由由 you替换替换; my由由your替换；相应地替换；相应地am也变为也变为are. 简单归纳即为：一提二变三替换。简单归纳即为：一提二变三替换。 Mary is an English girl .一般疑问句是：一般疑问句是：Is Mary an English girl ? I am in my classroom. 一般疑问句是：一般疑问句是：Are you in your classroom ? (3)含有含有be 动词的一般疑问句的回答方式动词的一般疑问句的回答方式：肯定回答：肯定回答：Yes, 主语主语+ be(am,is are). 其中，其中，be动词动词不能与主语缩写。不能与主语缩写。否定回答否定回答：No, 主语主语+ be(am, is, are)+not.其其中中be可以与可以与not缩写，但缩写，但am不能与不能与not缩写。缩写。 如：如：Is this an ID card ? Yes, it is. Are you Mr.Smith? No, Im not.（4）一般疑问句的）一般疑问句的语调语调：读：读一般疑问句用升调一般疑问句用升调 ，其其简略回答用降调简略回答用降调 。 【温馨提示】【温馨提示】疑问句的主语是疑问句的主语是第一人称第一人称, 回答时主语要换成回答时主语要换成第第二人称二人称; 疑问句的主语是疑问句的主语是第二人称第二人称, 回答时主语要换成回答时主语要换成第一人称第一人称; 疑问句是疑问句是第三人称第三人称, 回答时主语回答时主语不变不变。Am I right? 我是对的吗我是对的吗? Yes, you are. 是的是的, 你是对的。你是对的。 /No, you arent. 不不, 你不对。你不对。Are you Alan? 你是艾伦吗你是艾伦吗? Yes, I am. 是的是的, 我是。我是。/No, Im not. 不不, 我不是。我不是。【学以致用】【学以致用】用用be动词的适当形式填空动词的适当形式填空1. How are you? IOK, thanks. 2. Oh, this black penPeters. 3. Who is the woman? Sheour English teacher. 4. Bobs two auntson the sofa. amisisare5. Jerry and Loe students at Sunshine Middle School. 6. the black pen yours? Yes, its mine. 7. Thesemy friends, Bob and Cindy. 8. Whothe boy in the photo? Hes my cousin, Li Lei. areIsareis二、物主代词二、物主代词【观察领悟】【观察领悟】仔细观察例句仔细观察例句, 体会形容词性物主代词与名词性物主体会形容词性物主代词与名词性物主代词的用法不同。代词的用法不同。1. Is this your pencil? Yes, it is. Its mine. 2. Is this his green pen? No, it isnt. The blue pen is his. 3.Are these your books? No, they arent. Theyre hers. 【知识构建】【知识构建】表示所有关系的代词叫做表示所有关系的代词叫做物主代词物主代词 (Possessive Pronouns) , 也叫也叫人称代词的所有格人称代词的所有格。物主代词分为。物主代词分为形容词性物主代词形容词性物主代词和和名词性物主代词名词性物主代词两种。物主代词有人称和数的变化。人两种。物主代词有人称和数的变化。人称代词与其对应的物主代词见下表称代词与其对应的物主代词见下表: 人称人称形容词性物主代词形容词性物主代词名词性物主代词名词性物主代词Imymineyouyour (你的你的)yourshehishissheherhersititsitsweouroursyouyour (你们的你们的)yourstheytheirtheirs【学以致用】【学以致用】用所给词的适当形式填空用所给词的适当形式填空1. Alice and Bill are (I) good friends. 2. These books are (I) . 3. The girl is Ann and this is (she) mother. 4. This book is (she) . 5. (her) is Susan, my sister. mymineherhersShe3aComplete the questions and answers about each picture.Is _ your book?Yes, it is.No, it _.Are _ my pencils?Yes, _ are.No, they arent. Is _ his ruler?Yes, it _.No, it isnt. Are _ her pens?Yes, they are.No, they _.thisIsntthesetheythatisthosearentnot和和no的区别：的区别：（1）not 用于用于构成否定形式构成否定形式，置于句中，常放在，置于句中，常放在be动词动词、情态动词情态动词can等等、助动词助动词do的的后面后面，可与前面的词缩成一，可与前面的词缩成一个词，但个词，但不能独立不能独立使用。使用。如：如：This is not (isnt) a pen. I can not (cant) come. I do not (dont) know.Language points(2) no 常用于常用于带冠词带冠词(a, an, the)的名词前的名词前，主要，主要修饰可数修饰可数名词名词，此时，既可放在，此时，既可放在单数名词前单数名词前，也可放在，也可放在复数名词复数名词前前。在。在no+名词名词的结构中，名词前不能加的结构中，名词前不能加any, much等词。等词。 * It has no tail.它没有尾巴。它没有尾巴。 Tom has no books.汤姆没有书。汤姆没有书。 There is no water now.现在没有水。现在没有水。1. Is this her ruler? 2. Is that Erics schoolbag?Yes, _. Its _.No, _. _ Sallys.it ishersit isntIt is3bRead the questions and complete the answers.3. Are these his pencils?4. Are those Annas books?Yes, _. Theyre _. No, _. _ mine.they arehisthey arentTheyre3cPut some things into the teachers box. Then take one thing out of the box and find the owner. You only have two guesses!No, itisnt. Find the Owner!A: Is this your ?B: Yes, it is. No, it isnt.Game Is this youreraser?No, itisnt. Is this yourruler ?Yes, it is. 单项选择单项选择1. Is this your pencil? Yes, . A. itsB. it is C. itsD. is it2. Is that Alices dictionary? Yes, its. A. hisB. hers C. mine D. yoursExercise 3. Are those Toms pens? No, arent. A. theseB. thoseC. itD. they4. This isntbook. Its. A. my; her B. my; hers C. mine; her D. mine; hers5. Thank youyour photos. A. at B. for C. of D. to句型转换句型转换1. That is his schoolbag. (变为一般疑问句变为一般疑问句) _ _ his schoolbag? (作肯定及否定回答作肯定及否定回答) Yes, _ _. / No, _ _. 2. These are her erasers. (变为一般疑问句变为一般疑问句) _ _ her erasers? (作肯定及否定回答作肯定及否定回答) Yes, _ _. / No, _ _.Is thatthey are it isnt it is Are these they arent 3. This is her green jacket. (改为同义句改为同义句) This green jacket is _.4. My pen is red. What color is your pen? (同义句同义句) My pen is red. What color is _?5. This is his green jacket. (改为同义句改为同义句) This green jacket is _.6. Your pen is red, my pen is red, too.(同义句同义句) Your pen is red, _ is red, too.hers yours hismine补全对话补全对话, 每空一词每空一词A: 1me, Mary. 2these your pencils? B: 3, they are Helens. A: And4this her eraser? B: No, it5. Its Dales. A: What6this ruler? B: Its Cindys. And the pen is7, too. A: And the dictionary? Is that yours? B: Yes, its8. A: Thank you9your help, Mary. B: Youre10. 1._ 2. 3. _4._ 5. 6. _7. 8. _ 9._10. ExcuseAre No isisntabouthersmine forwelcome
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