2022年2022年完成时态知识点全解

1、精选学习资料 - - - 欢迎下载学习好资料欢迎下载星火训练一对一辅导教案同学姓名性别年级学科授课老师上课时间教学课题教学目标完成时态的学习精品学习资料精选学习资料 - - - 欢迎下载教学重点与难点教学过程现在完成时连续性动词,时态的正确使用,句型转换精品学习资料精选学习资料 - - - 欢迎下载1,结构：主语 +have/has+动词过去分词例句： i have eaten an apple.否 定 ： 疑问句：答句：确定 /否定2、使用情形：第一种情形：动作在过去发生,对现在产生影响；i have lost my keys,so i cant go home now.过去丢了钥匙,但对现

2、在造成了影响回不了家；又如： he has caught a bad cold.he cant go to school.其次种情形,动作从过去开头发生,并始终连续到现在,并且很有可能连续连续下去；常和 for+时间段 /since+过去时间点（词组或从句）连用等时间状语；常用在完成时中的时间状语：recently、 already,yet,so far,until now、 by now、 ever；辨析以下几组词汇：just now/just、 in the past/in the past few years、already/yet just 常和完成时连用, just now 表刚才,

3、应用一般过去时；例句： i drank a glass of beer just now.i have just drunk a glass of bee（r. just 一般位于 have,has 和过去分词之间）in the past 在过去的某个时间点,和过去时连用,in the past few years为过去的几年里,为时间段；例句：i was a teacher in the pasti have been a teacher in the past few years.already 表已经,位置比较敏捷： i have eaten the cake already.i hav

4、e already eaten the cake.yet 既可以翻译为已经,也可以翻译为仍没；精品学习资料精选学习资料 - - - 欢迎下载学习好资料欢迎下载在填空时需要留意辨别两个中文意义：have you found your keys（已经）？精品学习资料精选学习资料 - - - 欢迎下载for+时间段：a i have taught english for 5 years（.时间段）精品学习资料精选学习资料 - - - 欢迎下载例句 a 如改为 since：自从引导： i have taught english since 5 years ago.两句表达的意义相同,使用方式却不一样,

5、 since 和 for 可以相互转化, 只需要将时间段和时间点转变；since的用法：since 也可以引导时间状语从句,如：i have worked in this shop since i was a little girl.这种情形下的时态挑选为：（主句现完,从句一般过）再如： james has been a doctor since he graduated from the university.需要留意的为,表达某事连续多长时间：“ it is +一段时间 +since从句”时态挑选为： 主句一般现在时,从句一般过去时例： it is two hours since the

6、meeting began.翻译该句子：lucy 离开家已经一个礼拜了；（出去旅行了）.句子中有明确一段时间,或示意为一段时间段时,句子中谓语动词必需使用连续性动词,而不为非连续性动词；非连续性动词不行以和时间段连用；瞬时动词一般的连续性形式完成时的连续性形式leavebe awayhave/has been awaybegin/start/put onbe onhave/has been onturn off - turn onbe off - be onhave/has been offend/finishbe overhave/has been overbuyhavehave/has h

7、adborrowkeephave/has keptdiebe deadhave/has been deadget to knowknowhave/has knowncome/go+介词be+介词have/has been+介词open/closebe open/closedhave/has been open/closed精品学习资料精选学习资料 - - - 欢迎下载join/take part inbe in+组织/be a member of+组织have/has been in+组织/ have/has been a member of组+ 织精品学习资料精选学习资料 - - - 欢迎下

8、载becomebehave/has beenget marriedbe marriedhave/has been marriedfall asleepbe asleephave/has been asleepcatch a coldhave a coldhave/has had a coldget used tobe used tohave/has been used to精品学习资料精选学习资料 - - - 欢迎下载学习好资料欢迎下载例：i have bought a book for ten days×. i have had a book for ten days.练习：翻译以

9、下句子：1,我已经结婚六年了；2, lucy 的妹妹已经感冒很久了；3,把电视音量调小,宝宝已经睡着了；【留意】1,忌到处都用连续性动词；句子中有明显的时间段时,才需要将非连续性动词改为连续性动词；如： i have bought a new book.i have had this book for 2 months.2,不只为完成时态中需要连续性动词,下面这两种也常常考：我能借这本书多久？how long can i borrow the book.× how long can i keep the book.请在我离开的那段时间照料狗；please look after my

10、dog when i leave×. please look after my dog while i am away.3,短暂性动词的否定形式可以看做为连续性动词例：we haven't met since three years ago.【留意】have been to 、have gone to 、 have been in的区分have gone to:在去某地的路上,或者已经离开了动身地,或者已经到了目的地,总之已经离开了说话者的位置,仍没回来 ；在上表可知,由于go 为短暂性动词,故该词组使用时,不行以和时间段的词组连用；精品学习资料精选学习资料 - - - 欢迎

11、下载如：james has gone to new york with his family表.纽约的路上,仍没回来；示 james已经动身离开, 或者到了纽约, 或者在去精品学习资料精选学习资料 - - - 欢迎下载如： i have gone to shanghai for two days×.这种表达就为错误的；精品学习资料精选学习资料 - - - 欢迎下载have been to:曾经去过某地,现在已经回来,或者已经去了其他地方,总之已经离开了；强调人的过往经受,常和次数连用；如： i have been to the great britain for three time

12、s.留意： 0 次也为次数！精品学习资料精选学习资料 - - - 欢迎下载学习好资料欢迎下载例： i have neverusa .been to/gone to/been in从没去过,隐匿了去了0 次的意义； have been in:仍待在句中提到的位置,小地点可用at；通常会和一段时间连用；如： mr. smith has been in this school for twenty years待. 了 20 年,现在仍在这个学校；练习：留意,不要学了完成时后,到处都用完成时态；过去时和完成时的区分：1,有明确的过去时间状语,如yesterday、 last month、 a few days ago等；观看以下填空题：例：we have to repair the window because a strong windbreak it.如改为：we have to repair the window today、b