现在完成时态的复习PPT课件

1、如今完成时态的复习如今完成时态的复习2019年12月一、如今完成时态的概念1、如今完成时态表示过去某个时间点开场发生的动作，不断继续到如今。2、如今完成时态表示过去发生的动作，对如今所呵斥的影响或结果。二、如今完成时态的构造have/ has + 过去分词助动词如： have / has worked have / has arrived have / has studied have / has done2019-46. ( ) Your English teacher has never lost his temper, _ he? A) has B) hasnt C) did D) di

2、dnt2019-37. ( ) Plastic bags have caused serious environmental pollution, _? A) havent they B) have they C) dont they D) do they2019-67. Your mother has never tried shopping on the Internet.改为反义疑问句 Your mother has never tried shopping on the Internet，_ _?AAhas she 三、如今完成时态三种根本的句子种类1、一定句He has worked

3、 as a teacher for 3 years.2、否认句He hasnt worked as a teacher for 3 years.3、普通疑问句Has he worked as a teacher for 3 years?We have had dinner.We havent had dinner.Have you had dinner?四、如今完成时态的用法11、如今完成时态表示过去某个时间点开场发生的动作，不断继续到如今。 2019He began to work as a teacher in 2019.He has worked as a teacher for 3 y

4、ears. 3 yearsNow he still works as a teacher. since2019forHe has worked as a teacher since 2019. A：How long has he worked as a teacher?He graduated from university.He has worked as a teacher since he graduated from university (in 2019). B：He began to work as a teacher.自从。以来自从。以来_用用How long提问提问BCHow

5、long2019-41. ( ) The Harry Potter books _ pretty popular since they were published. A) become B) will become C) have become D) are becoming2019-42.( ) Nancy _ lots of charity work in her free time since she entered college. A) has done B) will do C) was doing D) is doing2019-43. ( ) Jenny _ with a C

6、hinese family for two years. Now shes used to the life in China. A) stays B) would stay C) is staying D) has stayedAD2019-68. Mr Smith has taught in our school for three years.对划线部分提问 _ _ has Mr Smith taught in our school ?2019-38. ( ) _have you been in the sports club? Since the first month I came

7、to the school. A) How old B) How long C) How much D) How soon四、如今完成时态的用法22、如今完成时态表示过去发生的某一个动 作，对如今所呵斥的影响或结果。We have had dinner.Mike hasnt got to school.五、如今完成时态的一些留意点3、瞬间动词和延续性动词的转换2、have/has been to 和 have/has gone to 的区别1、already 和yet 的用法1、already 和yet 的用法We have already had dinner.We havent had d

8、inner yet.Have you had dinner yet?already用于一定句中，普通置于句中，助动词后。yet用于否认句和疑问句中，普通置于句尾。2021-40. ( ) I _ you already that washing hands often will help prevent the A-H1N1 Flu. A) tell B) told C) have told D) am tellingC2、have/has been to 和 have/has gone to 的用法 ShanghaiShanghaiThey have been to twice.他们去过北京

9、两次。曾经从北京回来They have gone to .他们去北京了。还没有从北京回来2019-68. Mr and Mrs Brown have already been to China twice. 对划线部分提问 _ _ times have Mr and Mrs Brown been to China? How many2019-70.Junior 3 students began to learn chemistry a year ago.坚持句意根本不变Junior 3 students _ learned chemistry _a year.3、瞬间动词和延续性动词的转换havefor常见的瞬间动词 延续性动词begin (began) to do buy (bought)borrowborroweddie (died)join (jo