英语人教版八年级下册现在完成时态复习课件.ppt

1、Present Perfect Tense,现在完成时态,（人教版 八年级下Unit8-9 复习课）,江永县允山中学 谭勇坤,1). 表示过去发生或已经完成的某一动作对现在产生影响或结果。 Eg：I have already had lunch . (现在我不饿了。) 2). 表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要继续下去。 eg:I have learned English for 6 years.,现在完成时态的概念,现在完成时态的结构：,主语+ （ ）/ ( ) + ( ) +其它，其中的 have 和 has 是 助动词。 eg: I have watched

2、Journey to the west. She has watched Journey to the west.,have,has,动词过去分词,The Palace Museum,The Great Wall,water park,想一想：have/has 有什么区别？,选择have/has填空。 1、I seen Yaoming. 2、She been to Shanghai. 3、 He visited the Great Wall. 4、 They heard some music of Beiduofen. has 跟着他、她、它（she、he 、it has ），其他人称都与ha

3、ve结亲家( I 、you、we、they - have。,have,has,has,have,现在完成时态的一般疑问句,把句中的助动词 或 提前，其他句子成分不变。(如果主语是第一人称的要改为第二人称，其他人称不需变化。) 1)I have already read Little Women . Have you read Little Women yet ? 2) She has already run out of money. Has she run out of money yet?,have,has,如何回答一般疑问句,1、肯定回答用：Yes, 主语 + have/has. 2、否

4、定回答用：No, 主语 + havent /hasnt.(其中的 have not缩为 ；has not缩写为 )。 -Have you read Little Women yet ? -Yes, I have. / No, I havent. -Has she run out of money yet? -Yes,she has. / No,she hasnt.,havent,hasnt,already与yet,1.already用于肯定陈述句中，一般放行为动词前。 2.yet用于一般疑问句和否定句，放句末。 3.I have already read Little Women . Have

5、 you read Little Women yet ? I havent read Little Women yet .,Lets try!改为一般疑问句，并作答,1) I have already watched Journey to the west. Journey to the west ? -Yes, ./ No, . 2）Tom has already learned English . English ? - , he has. / No, he .,Have,you,watched,yet,I,have,I havent,Has Tom learned,yet,Yes,has

6、nt,现在完成时态的否定句,直接在助动词have/has后加 , 缩写为 或 。 注意：如果肯定陈述句中有already时，改否定句是要用 代替，already放在行为动词 ，而yet放 。 eg: I have already read Little Women . I havent read Little Women yet . She has already run out of money. She hasnt run out of money yet.,not,havent,hasnt,yet,前,句末,动词的过去式和过去分词的变化原则,1. 一般在动词词尾直接加ed。如： pick

7、 picked picked 2. 以不发音的e结尾的动词后面加d。如： phone phoned phoned 3. 以“辅音字母 + y”结尾的动词，变y为i， 再加-ed。如： study studied studied; 4. 词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加-ed。如：stop stopped stopped,不规则动词变化：,5. 以不变应万变。如： let let let; put put put; read read read 6. 若中间有双写e，则去掉一个e，单词末尾再加t。如： feel felt felt; keep kept kept; 7. 结尾的字母d变t。如： lend lent lent; build built built 8. 变为以-ought或-aught结尾。如： buy bought bought; bring brought brought; teach taught taught,Summary:,What did you learn about in this class?,Step 6 Homework:,1.写出下列动词的过去式和过去分词 play- put- buy- stop- phone- send- 改写句