Unit_3《Is_this_your_pencil》.ppt

1、Unit 2 Is this your pencil?,backpack,ruler,pencil,book,pencil case,pencil sharpener,pen,dictionary,1a,1.pencil_ 2.pen_ 3.book_ 4.eraser_ 5.ruler_ 6.pencil case _ 7.backpack _ 8.pencil sharpener_ 9.dictionary_,C,F,B,G,E,D,A,H,I,1b. Listen and number the conversations.,A: Is this your pencil? B: Yes,

2、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.,3,2,1,a backpack,an eraser,a pencil case,Is 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 ca

3、se.,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.,Listening,Tim: 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 _.,

4、And this is your _ , Jane.,eraser,ruler,book,pencil case,pencil,巧变一般疑问句,秘诀： 一调二改三问号 一调：即把句中的be（am / is /are )调到主语的前面。 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：句末的句号改为问号。,Yes, it is. / No, it isnt.,它们是一般疑问句简略的答语。 肯定答语：Yes,主语+ be. 否定答语：No,主语+ be + not. 2. 简略答语的主语要由问句的主语来决定。若问句中主语是that

5、或this，答语的主语用it. 若主语是名词时，答语的主语应用相应的人称代词。,如何将含be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 .,一、将下列句子变成一般疑问句和否定句 1.This is an apple . 2.