第三讲代词be动词介词.ppt

人称代词 2.1 人称代词主格与宾格 To be be动词的形式： am Be is are 2．Be动词的用法 1）Be + 名词词组，对主语进行归类、定义，回答主语是什么。 My friend is a good programmer. This is a university. He is an unhappy man. My father is an engineer in his company. 2）Be + 形容词，描述主语，回答主语怎么样。 The story is interesting. The teacher is experienced. I am thirsty. The mountain is beautiful. 3）Be + 介词短语，说明主语的位置、所处的状态等。 The cafeteria is on the first floor. The teacher is in front of us. The students are in a hurry. The classroom is in good condition. 介词加名词构成介词短语。如： in in the school, in the box, in the country On on the beach, on the desk, on the farm At at school, at home, at the bus stop Behind behind the house, behind the door In front of in front of us, in front of the house Under under the desk, under the bed Next to next to the window, next to the gate Between between the two hills Above above the armchair, above the desk. Exercise 2, 3, 4, 5 3. Be动词的否定和疑问 否定句：Be动词后面加not, 可以缩写成下列形式 I am not I’m not You are not You’re not You aren’t He is not He’s not He isn’t We are not We’re not We aren’t 一般疑问句：把be动词提到主语前面。简略回答时，be动词不能缩小。如： I’m a student. Am I a good student? Yes, you are. You’re late. Are you absent? No, I’m not. He’s married. Is he happy? yes, he is. It’s warm today. Is it cold today? No, it isn’t. They are at school. Are they at home? No, they aren’t. Lucy is lovely. Is Lucy lovely? Yes, she is. 特殊疑问句：特殊疑问词提高居首，后面接一般疑问句语序。如： Your teacher is ________. Who is your teacher? My name is ________. What is your name? You are from ________. Where are you from? Labour Day is _______ in China. When is Labor Day in China? Practice: Exercise 6, 7, 8, 9 * * Whom/who do you often help? whom who They greet us. them they We talk to them. us we It bites him. it it She punishes it. her she He likes her. him he You love me. you you I miss you. me I S V O object subject am