七年级英语上册 Unit 3 Welcome to our school Grammar课件 .ppt

Unit 3,Grammar,一 人称代词1人称代词有主宾格、人称和单复数的变化，在句中起代表人和事物的作用。,2.人称代词的用法(1)主格在句中作主语。We study English every day.我们每天都学英语。(2)宾格在句中作宾语或表语。I teach them English.我教他们英语。Who is knocking on the door?谁在敲门？Its me.我。,(3)当句中有几个人称代词同时出现时，一般是按 you,he,I排列。He and I are good friends.We often help each other.我和他是好朋友。我们经常相互帮助。,Say something with personal pronouns.Guess who he/she is.Guess what it is.Eg.1)He is a boy.He is very tall.He has short hair.He wears glassesWho is he?2)It is an animal.It can fly.What is it?,Games,二 物主代词 物主代词是表示所有关系的代词，有“形容词性”和“名词性”之分。,1.形容词性和名词性物主代词虽都译成“的”，但形容词性物主代词只能作定语，后边须有名词；而名词性物主代词后边不可再加名词，它在句中可作主语、宾语或表语。“名词性物主代词形容词性物主代词名词”。Is that your bag?那是你的包吗？No,it is hers.(hersher bag)不是，是她的。,2名词性物主代词与of连用可作定语。The handwriting of hers is very good.她的字写得很好。3物主代词前不能有this,that，some,a,an，the等词修饰。如不能说 the my right hand。,1.This watch is _(我的).It isnt_(你的).,mine,yours,2._（你们的）classroom is big and clean.,Your,3.Are these _（他们的）bikes?No,_(他们的)are yellow.,their,theirs,4.Is that woman _(我们的)English teacher?No,she isnt.,our,Exercises:,三 反身代词 反身代词是表示或强调自身的代词，有人称和数之分。第一、二人称反身代词由“形容词性物主代词self(单数)或selves(复数)”构成；第三人称则由“宾格人称代词self(单数)或selves(复数)”构成。,1.反身代词的基本用法是在句子中作宾语。常用在动词后以及一些介词后。buy oneself sth.(为自己购置某物)、enjoy oneself(过得愉快)、help oneself to some food(随便吃点食物)、teach oneself(自学)、wash oneself(自己洗澡)、look after oneself(自己照料自己),注意：若宾语与主语指同一个人，则用反身代词作宾语；若宾语与主语不是指同一个人，则用人称代词宾格作宾语。Did she buy herself a new watch?她给自己买了一块新手表吗？Did her father buy her a new book?她父亲给她买了一本新书吗？,2在句子中作主语或宾语的同位语，用来加强语气，表示“亲自，本人”，一般置于被说明的词之后。Lucy herself told me the news.露西亲自告诉我这个消息。,1.Remember the use of the pronouns we learned in this lesson.2.Prepare for the next lesson.,Homework,