七年级英语上册_Unit_3《Is_this_your_pencil》课件(新版)人教新目标版.ppt
Unit 2 Is this your pencil?Section Abackpack ruler pencil book pencil casepencil sharpenerpendictionary1a1.pencil_2.pen_3.book_4.eraser_5.ruler_6.pencil case _7.backpack _8.pencil sharpener_9.dictionary_CFBGEDAHI1b. Listen and number the conversations.A: Is this your pencil?B: Yes, it is .Its my pencil.A: Is that your backpack?B: No, it isnt. Its his backpack.A: Is this your ruler?B: No, it isnt. Its her ruler.321thatthis a rulera pencil sharpenera pen a book a dictionarya pencil a backpackan erasera pencil caseIs this a pencil case? Yes, it is.Is this your pencil case? Yes, it is. Its my pencil case.No, it isnt. Its her pencil case.Is that an eraser? No, it isnt. Its a book.Is that your book? Yes, it is. Its my book.No, it isnt. Its his book.重点句型：Is this/that a/an ?Yes, it is. No, it isnt. Its a/an How do you spell it?Is this/that your?Yes, it is. It is my ./No, it isnt. Its his/her .2a. Listen and check the things you hear.2b ListeningTim: Excuse me, Sonia. Is this your _. Sonia: Yes, thank you. And that is my_Tim: And Jane, is this your _ ?Jane: No, it isnt. Its her ruler.Tim: OK, and this is my _. And this is your _ , Jane.eraserrulerbookpencil casepencil 是以是以be动词动词(is, are 等等)，情态，情态动词动词(can等等)或助动词或助动词(do, does等等)开头表示疑问的句子。对一般疑问开头表示疑问的句子。对一般疑问句的回答通常需要作肯定或否定回句的回答通常需要作肯定或否定回答。答。一般疑问句：一般疑问句：巧变一般疑问句 秘诀： 一调二改三问号一调二改三问号 一调一调：即把句中的be（am / is /are )调到主语的前面。 二改二改：句中的主语若含有I (my /we )等第一人称代词时，需将它们改为you (your /you ） 三问号三问号：句末的句号改为问号。Yes, it is. / No, it isnt.1.1. 它们是一般疑问句简略的答语。它们是一般疑问句简略的答语。肯定答语：肯定答语：Yes,Yes,主语主语+ be.+ be.否定答语：否定答语：No,No,主语主语+ be + not.+ be + not.2. 2. 简略答语的主语要由问句的简略答语的主语要由问句的主语主语来来决定。若问句中主语是决定。若问句中主语是thatthat或或thisthis，答语的主语用答语的主语用it.it. 若主语是若主语是名词名词时，答语的主语应用相时，答语的主语应用相应的应的人称代词人称代词。如何将含如何将含be动词的肯定句变为否定句动词的肯定句变为否定句一般将含be动词am, is ,are 的肯定句转化为否定句时，直接在be动词am, is ,are 后加上“not”即可。其他部分不变。e.g.1. This is a ruler . 变：This is not a ruler . 2. I am a student . 变：I am not a student. 3. Tim and I are good friends. 变：Tim and I are not good friends .口诀口诀 be 动词真伟大，动词真伟大，生出生出am is are .表示否定很简单，表示否定很简单，not加在加在be 后边。后边。若要变为疑问句，若要变为疑问句，be应移到主语前。应移到主语前。还有一点要注意，还有一点要注意，句末问号别忘记。句末问号别忘记。
