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)
2017届高考英语新人教版一轮复习课件:必修5 Unit 1 Great scientists
2017届英语总复习作业本:Module4FineArtsWestern,ChineseandPopArts(外研版必修2)
2017届高考英语新人教版一轮复习课件:必修3 Unit 5 Canada— “The True North”
2017届高考英语新人教版一轮复习课件:必修5 Unit 3 Life in the future
2017届高考英语新人教版一轮复习课件:选修7 Unit 1 Living well
2017届高考英语新人教版一轮复习课件:选修8 Unit 3 Inventors and inventions
2017届高考英语新人教版一轮复习课件:选修8 Unit 5 Meeting your ancestors
2017届英语总复习作业本:Module6TheInternetandTelecommunications(外研版必修1)
2017届英语总复习作业本:Module5ALessoninaLab(外研版必修1)(1)
2017届英语总复习作业本:Module6FilmsandTVProgrammes(外研版必修2)
2017年高考英语得分精练精选题:第4周试题15
2017届高考英语新人教版一轮复习课件:选修7 Unit 5 Travelling abroad
2017年高考英语得分精练精选题:第5周试题20
2017年高考英语得分精练精选题:第4周试题14
国际英语资讯:Austn authorities issue warning as deadly mushroom sightings increase
2017届高考英语新人教版一轮复习课件:选修7 Unit 4 Sharing
2017届高考英语新人教版一轮复习课件:选修8 Unit 2 Cloning
2017年高考英语得分精练精选题:第4周试题13
国内英语资讯: Officials confident of marketing program for Beijing 2022
国际英语资讯:S. Korean prosecutors to decide who to be indicted over presidential scandal
国内英语资讯:Chinas Belt and Road initiative to boost maritime ports development: UAE official
2017届英语总复习作业本:Module6OldandNew(外研版必修3)
2017届高考英语新人教版一轮复习课件:选修6 Unit 2 Poems
国内英语资讯: China allows more foreign investment in onshore financial market
2017届高考英语新人教版一轮复习课件:必修5 Unit 4 Making the news
国际英语资讯:Austrian, German officials call on Europe to stay together to overcome challenges
2017届高考英语新人教版一轮复习课件:选修6 Unit 5 The power of nature
2017年高考英语得分精练精选题:第二周试题7
体坛英语资讯:Dortmunds Goetze out of action for unknown period of time
2017届高考英语新人教版一轮复习课件:选修7 Unit 2 Robots
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