初中同步英语初一U.pptx

UNIT 3 Is that yours? Words ask /:sk/ v. 问；请求；要求 ask sb to do sth. ask for ask a question ask and answer 让某人做某事 要求，要 问问题 问与答 help /help/ v. one与that则指代同名异物。 one为泛指, 相当于a/an名词，指前面所 提到物品中的一个; that为特指, 相当于the 名词，后面一般都 有限定成份。 I have lost my pen; Im looking for it. （该句中it就是指前面的那个 pen) I have lost my pen; I must buy one. （one在该句中表泛指，相当于an pen，商店所有笔中的一个 ） The pen on the left is longer than that on the right. (that 相当于the pen, 有限定成份on the right) (1) - Whos _ speaking? -_ is John. A. this, This B. that, That C. this, That D. that, This (2) I cant find the pen 1 was given. Have you seen_. A. it B. one C. this D. that (3) Did you find _ very interesting to play YoYo? A. this B. its C. that D. it (4) - Mum, Mary bought a parrot yesterday. Could you please buy _ for me? - Sure. But you must take good care of it. A. one B. this C. it D. that (5) Class 2 will go for a picnic. They made _ 6 oclock to meet at the foot of Mountain Tai. A. it B. that C. them D. (6) The windows of our classroom are brighter than _ of theirs. A. that B. this C. those D. these 句子单数变为复数 (1) 指示代词的变化：this变为these，that变为those (2) 人称的变化：第一人称I变为we，you不发生变化 ，he / she / it变为they. (3) 动词的变化：am或is变为are。 动词单三变原形。 (4) 可数名词的变化：可数名词的单数变为复数形式。 We are teachers. I am a teacher. Is she your sister? Are they your sisters? 句子单数变成复数 (1) He is a good boy. (2) Is it a ruler? (3) He is a man doctor. (4) Whe