Unit 3 Language in use课前准备形 式主 格宾 格形容词性物主代词名词性物主代词人称单数第一人称I第二人称you第三人称hesheit复数第一人称we第二人称you第三人称they观察表格得知：1人称代词的主格在句子中作_2人称代词的宾格在句子中作_或在介词后、be动词后3形容词性物主代词与名词性物主代词 1）联系：大部分形容词性物主代词在后面加_构成_。但是有3个特殊情况：_ 2）区别：形容词性物主代词后面必须接_, 起形容词的作用。但名词性物主代词可以单独使用，起名词的作用，它作主语时，如果含义是单数，后面的be动词用_, 如果含义是复数，那么be动词用_。 名词性物主代词= _【练习】1. My bag is yellow=_ 2. The dress is _. Give it to _.(she) 3. -I cant find my dictionary . May I use_? -Sure. Here you are. A, you B. your C. yours D. yourself知识讲解1. help 既可作_词，如：help sb (to) do sth=help sb with sth 帮助某人做某事 help oneself to sth 随便吃某物; 也可作_词, with the help of 在的帮助下 cant help doing sth 情不自禁做某事【练习】 (1)Could you help me _(carry) this box? Its too heavy. (2) 他们情不自禁笑了。_2. such as = for example 意为_3. think of 意为_【练习】我想不起他的名字了。I cant _ _ his name.巩固练习.根据句意用恰当的代词填空。1. Is that camera yours? Yes, its _.2. Look at _. She is very well.3. Put on _ glove, Tom. Im going to put them on.4. What are _ jobs? They are students.5. I have a beautiful cat. _ name is Mimi.6. That isnt her mobile phone. _ is purple.7. Tim and Tony are twins. _ come from England. _ parents are in Shenzhen now.8. That boy is my good friend. _ name is David. Look! These crayons are _. 9. I dont know her name. Would you please tell _. 10. Our bikes are new. These are old. They arent _.选择填空。( )1. There is _ eraser on the desk. Its Marys.A. a B. an C. the D. /( )2. Is this _ camera? No, it isnt _. A. theirs; their B. hers; his C. your; mine D. your; my ( )3. The pet pig in your hand is very nice . Is it _? Yes, but Ill give it to my friend Lucy as _ birthday present. A. you; her B. your; her C. yours; her D. you; hers( )4. Hi, Jim. Is this your bike or Marys? Its mine, not _. A. her B. him C. his D. hers ( )5. Mr. Zhang teaches _ English. We like _ class very much.A. us; his B. me; her C. us; ours D. us; her( )6. Are these books _? No, They arent mine. They are _. A. her; yours B. yours; hers C. your; his D. you; hers ( )7. How many people come to your town every week? Its hard to say. _ people, I think. A. Five thousand of B. Hundred of C. Five hundreds D. Thousands of( )8. He can _ you _ your lost things.A. help; find B. helps; to find C. help; finding D. helps; look for( )9._ is a good student. All the teachers like _ very much.A. She; her B. She; him C. He; his D. She; hers( )10.Youd better use _ computer. _ is broken.A. his, My B. his, MineC. he, My D. him, Mine