初中英语现在完成进行时.ppt

1、现在完成进行时,I have been colecting shells for five years.,I started to collect shells five years ago.,He began to collect coins twoyears ago.,He has been collecting coins for two years.,She started to collect stamps last year.,She has been collecting stamps for a year.,现在完成进行时,一、用法： 表示从过去某时开始，一直延续到现在的一个动

2、作；该动作有可能继续延续下去。如： 我收集邮票已经五年了。（collect 这个动作从五年前开始，并延续到现在。） 他看书已经三小时了。（read这个动作从三个小时前开始，并延续到现在。）,二、句型结构 主语+have /has been +v.ing +其他. has 用于第三人称单数，have 用于除第三人称单数外的人称。与主语可缩写为s ,ve. 如： I have been collecting stamps for 5 years. Ive He has been reading books for 3 hours. Hes,分清我是谁！He is or He has,看图，根据提示

3、词，用现在完成进行时表达句子,he skate three hours,He has been skating for three hours.,The boy study two hours,The boy has been studying for two hours.,看图，根据提示词，用现在完成进行时表达句子,they play basketball one and a half hours,They have been playing basketball for one and a half hours.,看图，根据提示词，用现在完成进行时表达句子,三、连用的时间(判断该时态的标志

4、词) for + 时间段； （for two weeks,两个星期) since+ 一段时间+ago,(常用于完成时) for two years = since two years ago,eg：He has been playing for one hour. He has been playing _ _ _ _.,since one hour ago,since +时间点的短语/从句(过去时); eg:We have been studying here since 2009.(时间点) Ive been playing football since I was 7years old.

5、(从句),还可以用句型Its+时间段+since +一般过去时的句子 eg:Its 7 years old since I played football.,常用句型： (1)肯定句： 主语+have/has been+ 动词的现在分词+其他 eg: He has been collecting all kinds of kinds of stamps since he was ten years old. 自10岁起他就开始收集各种各样的邮票 (2)否定句： 主语+have/has not been+ 动词的现在分词+其他 eg：He hasnt been teaching here the

6、se years? 这些年他并没有一直在这教书。,常用句型： (3)一般疑问句： Have(Has)+主语+been+动词的现在分词+其他？ 肯定回答：Yes，主语+have/has; 否定回答：No,主语+havent(hasnt) -Has Daniel been skating for two years? 丹尼尔滑冰已经有两年了吗？ -Yes, he has./No, he hasnt 是的，他有/不，他没有。,现在完成进行时的用法,.1.发生在过去的动作,一直持续到现在,并且还将继续进行. eg:Chinese have been making paper for more than

7、 two thousand years.,2.表示在说话这一刻之前刚刚结束的动作. eg:We have been waiting for you for an hour,Tom said.,用所给动词的适当形式填空。 1.Jim_ (teach) English for 5 years. 2.We _ (work) here since two years ago. 3.He _(play)football since he was 9 years old. 4.His brother _ (write)this story since last year.,has been teachin

8、g,have been walking,has been playing,has been writing,句型转换。按要求改写下列句子。 1.He has been waiting for his mother for an hour.(一般疑问句,并做肯否定回答) 2.The boy started to play the guitar two years ago.（用for ,since短语改写）,_ he _ _for his mother for an hour? Yes,_ _. No,_ _.,The boy _ _ _ for_ _. The boy _ _ _ since _

9、 _ _.,Has been waiting,he has he hasnt,has been playing,two years,has been playing,two years ago,3.The students have been skating for five hours.（否定句） The students _ _ _ for five hours. 4.She has been reading books for three hours.（同义句） She has been reading _ _ _ _.,havent been skating,since three hou