九大时态详解-过去进行时

1、精品资料欢迎下载五过去进行时定义：表示过去某个时间点正在发生的事情句型结构：主语 + 谓语动词 + （宾语）谓语动词： was/were +doing (动词 ing 形式 )* 注意：进行时态的中出现的动词必须是持续性动词，而非短暂性动词。动词 ing 形式的变化规则：1.在词尾 +ing，如play playing ；2.当动词以重读闭音节结尾且结尾只有一个辅音的时候，双写末尾的辅音run running ；+ing，如3.当动词以辅音+e结尾时，去e+ing，如make making4.不规则变化：lie lyingdie dying例 1： We were having breakfa

2、st at 8:00 this morning.例 2: I was cleaning my bedroom at 7:00 last evening.例 3: Mary was waiting for the school bus then.例 4: You were listening to music when I saw you.句型转换：变为否定句：We were having breakfast at 8:00 this morning. (在be动词之后加not)werent变为一般疑问句：Were you having breakfast at 8:00 this mornin

3、g?( 把 be 动词提到句子最前面，其它不变)回答：Yes, we were.No, we werent.精品资料欢迎下载特殊疑问句的变化规则：三步走，一换二代三提前例 1： We were having breakfast at 8:00 this morning.(对划线部分提问 )一换：换成一般疑问句Were you having breakfast at 8:00 this morning?二代：把划线部分用特殊疑问词代入Were you having breakfast at 8:00 this morning?doing what三提前：把特殊疑问词提前What were you

4、 doing at 8:00 this morning?拓展提高：由 when 引导的时间状语从句，从句用一般过去时，主句用过去进行时You were listening to musicwhenI saw you.主句：过去进行时引导词从句：一般过去时注意：当 when 引导的从句与主句交换位置时，句子意思不变，如You were listening to music when I saw you.=When I saw you, you were listening to music.She was reading a book when her mother came back home

5、.=When her mother came back home, she was reading a book.由 while 引导的时间状语从句，主句和从句都用过去进行时I was doing my homeworkwhilemy dad was watching TV last.主句：过去进行时引导词从句：过去进行时=While my dad was watching TV, I was doing my homework.Linda was cleaning her bedroom while her brother was playing outside.=While her bro

6、ther was playing outside, Linda was cleaning her bedroom.注意：从句要紧跟着引导词。精品资料欢迎下载练习一：请写出例2 、3、 4 的否定句，一般疑问句及其问答。练习二：请把下列句子改成特殊疑问句(写出变化步骤 )1.The students were watching TV at home last night.练习三：用适当的引导词，把下列句子连成一句话1. A. Martin was watering the flowers. B. Linda came in.2. A. Cindy and Lucy were studying Engli