[医学]一般过去时态专题（人教PEP六下册）.PPTVIP

小学英语六年级一般过去时态专题 （一）一般过去时的用法 1. 通常表示过去发生的而现在已经结束的事件、动作或情况。 Eg. Sam phoned a moment ago. I got up at eight this morning. 2. 还可以表示刚刚发生的事情而没说明时间。 ??? Eg. Did the telephone ring? ??? Who left the door open? 3. 也可以表示过去的习惯性动作。 ??Eg. I smoked 40 cigarettes a day till I gave up. ? （二）一般过去时的构成： 1. 有be的句子 am/is—was????? are—were eg.肯定句：He was a cook 2 years ago.????????????? They were at school yesterday. ??? 否定句：He was not a cook 2 years ago. They were not at school yesterday. ??? 一般疑问句：Was he a cook 2 years ago? Yes, he was. No, he wasn’t. Were they at school yesterday? Yes, they were. No, they weren’t. 2. 行为动词的一般过去式。 A. 规则动词的变化规则： （1）一般动词直接加-ed （2）以e结尾的动词直接加-d （3）以辅音字母加y结尾的变y为i再加ed （4）以重读闭音节结尾，词尾只有一个辅音字母，双写最后这个辅音字母，再加ed B. 规则动词过去式的发音： ??? 在清辅音后读/t/，在元音和浊辅音后读/d/，在辅音/t/,/d/后读 /id/。 C. 不规则动词变化需参看不规则动词表逐一熟记。(一般和过去分词一起记忆)。 D. 基本句式： （三）典型例题  ---- Your phone number again? I ___ quite catch it. ---- Its A. didnt B. couldnt C. dont D. cant 答案A. 本句虽没有明确的时间状语，但从语意上看出，在听的时候没有听懂这个动作发生在过去，因此应用过去时。 （四）课堂练习 一. 单选。 1. He usually goes to school by bus, but yesterday he ????????a taxi. ??? A. takes?????? B. took??????? C. gets on????? D. got on 2. I ???????some books about Amerian history from our library last week. ??? A. borrowed??? B. took???? C. brought???? D. lent 3. It was warm, so I ??????my coat. ? A. put on???? B. put up???? C. took off???? D. take off 4. The window was open and a bird ??????into my room. ??? A. flies???? B. flys????? C. flyed????? D. flew 5. Both my parents ??????born in Tianjin and I ???????born in Shanghai. A. are, am???? B. was, were???? C. were, was?????? D. did, did 句型转换 1. Xiao Lin went fishing this morning.（改为一般疑问句） ??? ?????????????????????????????????????????????????????????????? 2. We visited our teacher last night.（就划线部分提问） ??? ????????????????????????????????????????????????????????????????