Unit 3 语法讲解【课件】-【精品课】 2023-2024学年七年级上册英语教学同步精美课件（人教版）

这是一份Unit 3 语法讲解【课件】-【精品课】 2023-2024学年七年级上册英语教学同步精美课件（人教版），共55页。

Unit 3Is this your pencil?语法讲练Sing with it and tell me what you can see in the video?Let’s enjoy a song.Let’s see what are the following things.I have some gifts for you.This is a book.这是一本书。a pencila pena booka schoolbaga dictionaryA：What’s this? an eraserB：It’s a/an ….What else?A：What’s that?B：It’s a/an ….an erasera pencil boxa rulerA：What are these? B：They are ….pencilsschoolbagspencil boxesdictionariesA：What are those? B：They’re … .pencil boxeserasersrulersThis is a book. 只是一本书。This is a pencil. 这是一支铅笔。This is an eraser. 这是一个橡皮擦。This is a pen. 这是一支笔。These are pencil boxes. 这是铅笔盒。They are rulers. 这是一把尺子。Those are schoolbags. 这是一个书包。 They are dictionaries. 这是一个字典。Please read the sentences together. (齐读句子)陈述句疑问句？？陈述句是指陈述一个事实或者说话人的看法的句型，包括肯定句与否定句，并且句末用句号。陈述句如何变成一般疑问句？ 一般疑问句是在句子中用提问的方式提供一些信息, 要求对方用 Yes 或 No 回答的疑问句。朗读一般疑问句用升调, 其简略答语用降调。 由 be 动词(am, is, are)引导的疑问句结构是: “be + 主语 + 其他部分？”含有be动词的一般疑问句A: Is this/that an eraser?B: Yes, it is.A: Is that/this a dictionary?B: No, it isn’t . It’s a ruler.A: Are these schoolbags?B: Yes, they are.A: Are those books?B: No, they aren’t. They are pencils.Let's practice more.一般疑问句的概念一般疑问句的概念：能用yes或 no回答的问句就叫一般疑问句。含有be动词的陈述句变一般疑问句的方法1) 将be动词提至句首2) 将句末标点改为问号3) 将第一人称变为第二人称，即 I 由 you替换; my由your替换；相应地am也变为are. 简单归纳即为：一提二变三替换。________________↗ 那是你的自行车吗？___________________↗他们是你的朋友吗?肯定回答：Yes, 主语 + be (am, is, are).否定回答：No, 主语 + be (am, is, are) not.--- __________________↗ 这是你的铅笔吗？ --- ___________________↘ 是的。/不是。Is that your bike?Are they your friends?Is this your pencil?Yes, it is. / No, it isn’t. 这是你的铅笔吗？ __ ____ your pencil?2. 是的。它是我的。 Yes, ___ ___. It’s _____. 3. 那是你的书包吗？ __ ____ your schoolbag?4. 不是。它是他/她的。 No, __ ____. It’s ___/_____. 5. 这是他的绿色钢笔吗？ __ this ___ _____ pen?Is thismineIs thatit isn’t his hers it is Is his greenFill in the blanks.6. 不是。那只蓝色钢笔是他的。 No, __ _____. The ____ ____ is ____. 7. 这些是你的书吗？ ____ ______ your books?8. 是的。/ 不是。 Yes, ____ ____. / No, _____ ______.9. 那些是她的钥匙吗？ ____ _____ her _____? 10. 不是。它们是她的。 No. _______ hers.Are thesethey arethey aren’tAre those keysThey’reblue pen hisit isn’t【be动词用法】 用be动词的适当形式填空1. ——How are you? ——I______OK, thanks. 2. Oh, this black pen _____ Peter’s. 3. ——Who is the woman? ——She _______ our English teacher. 4. Bob’s two aunts　______on the sofa. 5. Jerry and Leo _____students at Sunshine Middle School. 6. —_______ the black pen yours? —Yes, it’s mine. 7. These ______ my friends, Bob and Cindy. 8. —Who ______ the boy in the photo? —He’s my cousin, Li Lei. amisisareareIsareisIs this your book?Yes,______. It’s __ book.it ismy______.minemine =my bookPresentation.Is that your pencil box?No, ______. It’s her________it isn’tpencil box______.hershers =her pencil boxIs this your ruler?No, ______. It’s his_____.it isn’truler____. his his =his bookAre these my books?Yes, _________. They’re ____ books.they areyour_____. yours yours =your books物主代词分为形容词性物主代词与名词物主代词，其中表格里是形容词性物主代词的是_____________; 是名词性物主代词的是______________. 形代与名代的区别是_____后面一定有名词；而_____后面无名词。your, his, hermine, hers, his 名代形代你的他的她的我的她的他的mine, yours, hers等是名词性物主代词, 相当于一个名词, 可以在句子中单独使用。它相当于“形容词物主代词 + 名词”。而形容词性物主代词只能和名词在一起使用。名词性物主代词mineyourshishersitsoursyourstheirs用法： 1）名词性物主代词在句中独立使用，相当于”名词性物主代词 = 形容词性物主代词+前文提到的物品“，后面不再加名词。 2）名词性物主代词在句中可作主语、表语或宾语。用作主语时，谓语动词的数应随所指对象的数而定。 ex：1 -Is this ruler yours or hers? -It's mine. Hers is in her bag. （Hers = her ruler, 所以be动词选择is） 2 -Whose books are these? -They are his. Yours are over there. （yours =your books, 所以be动词选择are）● 形容词性物主代词只能作定语，放在名词前。我的名字是杰克。____________________他们的电话是多少？____________________这是她的书。____________________你爸爸是个老师吗？____________________My name is Jack.What are their phone number? This is her book.Is your father a teacher? ●在汉语中有些表示所有关系的会省略“的”，大家在翻译成英语时要注意，不要误把它们翻译成人称代词。我哥哥I brother my brother√×你妈妈__________他妹妹___________your motherhis sister●形容词性物主代词修饰名词时,不能和冠词或指示代词一起使用.This is my pencil. 不能说成: This is my a pencil. ● 名词性物主代词可以作表语。1.这是谁的书？是他的。________________________2.这把尺子是你的，那把是她的。This ruler is _____, that one is _____.3.哪只钢笔是我的？ 蓝色的那一件。Which pen is _____? The blue one.Whose book is this? It’s his.mineyourshersTips:名词性物主代词相当于一个名词，即“形容词性物主代词+名词”,起到避免重复的作用。● 名词性物主代词可以作主语。1.我们的书在一楼，他们的在二楼。_____ ________are on the first floor. ______ ____ on the second. 2.这是你的盒子吗？ 不，我的是黑色的。Is this ____ _____? No, ____ ____ black. Our booksTheirs your boxmine isareTips:名词性物主代词作主语时，要注意它指代的名词是单数还是复数，从而使用正确的be动词形式与之搭配。● 名词性物主代词可以作宾语。 请帮我打开我的（书）。 _______________________Open mine for me, please.I can’t find my pen. May I use yours? 我找不到我的钢笔。我能用一下你的吗？● 名词性物主代词与of连用作定语。He is a friend of mine. 他是我的一个朋友。_____________________ Here’s a photo of my family for you. May I have one of yours？这儿有张我的全家照给你。我能要张你的吗？This jacket is his.These books are hers.Those photos are ours.These are her books.Those are our photos.This is his jacket.→→→形容词性物主代词和名词性物主代词同义句转换：That is my dictionary.These are their pencils.This is your eraser.That dictionary is mine.These pencils are theirs.→→→This eraser is yours.【知识构建】【学以致用】 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. mymineherhersShe1.This is ____(my)book. ______(your)is in the bag. 2.The map is          (our).3. Are these pencil boxes ____(her)? No. ____(her)pencil boxes are at home.4. They aren’t ____(his)pens. They are ______(their).5. This is my ruler. Can you show _____(your) to me? 6.That is not ____(my) pencil. It’s ____(her).7.Is this book _____(your)? Yes, it’s _____(my).8. May I have a family photo of ______(your)? 用适当的物主代词填空。myYours ourshersherhistheirsyoursmyhersyoursmineyoursThis is the car of Ben and Mary. It’s _________.theirs1/10theirshisourshersyoursitsmineThat is the bike he gave(给) you. It’s _________.yours2/10theirshisourshersyoursitsmineShe bought(购买) this car last month. It’s _________.herstheirshisoursyoursitsminehersLinda is a good student. _____ favourite subject is Chinese.HertheirhisHersyouritsmyherCan you help me? I really need _______ help.youryourshisourheryouritsmyThose are the toys of my dog. They’re ________.itstheirshisourshersitsitsmyAndy won(赢得) this toy last year. It’s ________.his6/10theirshisourshersyoursitsmineBen and Bob just love ______ new bikes.theirtheirhisourheryouritstheirsThat is Ted’s pants. It’s ________.his9/10theirshisourshersyoursitsminethisIsn’tthesetheythatisthosearen’t1. Is this her ruler? 2. Is that Eric’s schoolbag?Yes, _______. It’s ________.No, _________. ______ Sally’s.it ishersit isn’tIt is3. Are these his pencils?4. Are those Anna’s books?Yes, _______. They’re ________. No, __________. _______ mine.they arehisthey aren’tThey’reA: Here you are!C: Thank you!A: You’re welcome. /That's OK.Who is the owner (主人) ?Take something out of the bag and find the owner. You only have two guesses! 从袋子里取出物品并找到它们的主人。你只有两次猜测机会!A: Is this/that your … ?B: No, it isn’t. It's not mine./It’s his/hers.A: Is this/that your … ?C: Yes, it is. It’s mine .Who is the owner (主人) ?Is this your book ?Yes, it is. It is my book.No, it isn’t. It is his book. her book.mineyourshishers/ that总结：名词性物主代词= 形容词性物主代词+名词possessive pronouns（名词性物主代词）Linda’s quiltsJack’s rulersLucy: _______ _______your quiltsMary: No,____ _______. They are_____________.Lucy: _______ _______your rulersMary: No,____ _______. They are_____________.Are these they aren’tLinda’s quiltsher quiltshersAre those they aren’tJack’s rulershis rulershis名字/ 称呼+________表示某人的。 其中________表示名词所有格。’s’s1. ________(Linda) telephone number is 555-6456.2. This is__________(Jack) dog.3. These are my________(father) pens.4. My brother are my _____(father) and _____(mother) son.5. Bob and Jenny are my ______(father) and _______(mother) names.Linda’sJack’sfather’sfathermother’sfather’smother’s1. 表示两个人共同拥有的东西，___________________身上加’s.2. 表示两个人分别拥有的东西，___________________加’s.只在最后一个人两个人身上都要名词所有格名词所有格表示有生命事物的所有关系，在名词其后加's来表示所属关系，意为“…...的”。e.g. 安娜的 _______ 鲍勃的 _______Anna’sBob’s拓展延伸一、单项选择题Exercises1. — Is that your computer game? — ____ A. Yes, it is B. No, it is. C. Yes, it isn’t. 2. A baseball is ______ the school library. A. on B. in C. at AB3. --What’s this? --_______ A. Yes, it is. B. No, it isn’t. C. It’s a eraser. D. It’s an eraser.4. --What’s ______ name? --_______ name is Ma Ling. A. your; My B. your; my C. your; I D. you; my5. —What’s this? — _____. A. This is a pen. B. Yes, it is. C. It’s a key.DAC( )6. This is my book. ___ are over there. A. Your B. Yours C. You D. Mine( )7. Whose pen is it? It’s ___. A. her B. hers C. she D. he( )8. ___ bag is new and ___ is new, too. A. Our; he B. Ours; his C. My; his D. My; her 1BBCI.根据括号内的要求完成下列各题, 每空一词(含缩略形式)。1. This is my pen.  (改为一般疑问句) _____ ______ ______ pen?2. They are Mike’s maps.  (改为单数形式) ____ ____ Mike’s ______.It is map Is this your3. That is his photo.  (改为复数形式) _______ ______ their ________.4. Are these your jackets?  (作肯定回答) _____, ______ _____.5. Is that Bob’s ruler?  (作否定回答) _____, ____ ______.6. That is her orange.  (改为同义句) That orange _____ _____.is hersThose are photos Yes they areNo it isn’t 补全对话，每空限填一词。A: ________me, Tom. Are these _______ pencils?B: No, ______ are not mine. They are Mary’s.A: And is this black pen ________,too?B: No, _____ isn’t. It’s Peter’s. He can’t find (找 到)______ pen.A: What about this eraser? Is it ______?B: Yes, it’s ________.A: Thank you ______ your help.B: You’re _________.ExcuseyourtheyhersithisyoursforwelcomemineHomework1.Review the grammar and make conversations like that in 2d with your classmates.2.Write the questions and complete the answers in 3b in the exercise-books.