在说或写一句话时,通常要选择一个中心时态,这个中心时态影响其它时态 ,即时态要前后一致。
以现在为中心:若开始叙述或描述着眼于现在,则常以现在为起点,从而会出现一般现在时、现在进行时、现在完成时或一般将来时连用的情况。
Our postman usually delivers our arrival at 7 every morning. It (be) nearly lunchtime and the mail still (not arrive). I (suppose) the mail (come) soon. Perhaps he (be) ill. (is, hasnt arrived, suppose, will come, is
以过去为中心:若着眼于过去,则常以过去某时为基点,从而出现一般过去时、过去进行时、过去将来时和过去完成时连用的情况。
We lived in the street. They (build) houses all around us then. We (be) there for 10 years and (imagine) we (stay) there for the rest of our lives. (were building, had been, imagined, would stay)
人教版[2013版]英语七下《Unit 11 How was your school trip》(Section A1a-2d)ppt课件
人教版[2013版]英语七下《Unit 2 What time do you go to school》( sectionA)ppt课件
新人教版英语七下《Unit 7 What does he look like》ppt课件(含素材文件)
新人教版英语七下《Unit 9 How was your weekend》ppt课件
人教版[2013版]英语七下《Unit 11 How was your school trip》(Section A1a-2c)ppt课件
新人教版英语七下《Unit 9 How was your weekend》ppt课件1
新人教版英语七下《Unit 8 I’d like some noodles》ppt课件
新人教版英语七下《Unit 8 I’d like some noodles》ppt课件1
人教版[2013版]英语七下《unit 10 I d some noodles Section A》(1a-2e)ppt课件
人教版[2013版]英语七下《Unit 10 I d like some noodles》mp3音频素材
人教版[2013版]英语七下《Unit 2 What time do you go to school》(point2)ppt课件
新人教版英语七下《Unit 8 I’d like some noodles》ppt课件(含素材文件)1
新人教版英语七下《Unit 6 It’s raining》ppt课件包(含素材文件)2
新人教版英语七下《Unit 9 How was your weekend》ppt课件包(含素材文件)
人教版[2013版]英语七下《Unit 12 What did you do last weekend Section B1》ppt课件
人教版[2013版]英语七下《unit 10 I d some noodles Section A》(1a-1c)ppt课件
人教版[2013版]英语七下《Unit 2 What time do you go to school》MP3音频素材
人教版[2013版]英语七下《Unit 12 What did you do last weekend Section A2》ppt课件
人教版[2013版]英语七下《Unit 11 How was your school trip Self check》ppt课件
新人教版英语七下《Unit 7 What does he look like》(SectionA)ppt课件
新人教版英语七下《Unit 8 I’d like some noodles》(SectionA)ppt课件
人教版[2013版]英语七下《Unit 12 What did you do last weekend》(SectionA-2)ppt课件包
人教版[2013版]英语七下《Unit 11 How was your school trip Section B》ppt课件
人教版[2013版]英语七下《unit 10 I d some noodles Section B1》ppt课件
人教版[2013版]英语七下《Unit 11 How was your school trip Section A》ppt课件
人教版[2013版]英语七下《Unit 2 What time do you go to school Section B》ppt课件
人教版[2013版]英语七下《unit 10 I d some noodles Section A》(s-3c)ppt课件
人教版[2013版]英语七下《Unit 12 What did you do last weekend Section A1》ppt课件
人教版[2013版]英语七下《Unit 11 How was your school trip》(Section A2a-2b)ppt课件
人教版[2013版]英语七下《Unit 10 I d like some noodles Self check》ppt课件