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--------呵护孩子的成长，把爱的能量传递下去 since (two weeks ago)和since引导的状语从句。如：I have been away from my hometown for thirty years.(我离开家乡有30年了)/ Uncle Wang has worked in the factory since it opened.(自从这家工厂开张,王叔叔一直在那儿工作)

④口语中have got往往表示have(有)的意思。如：They have got thousands of books in their library.(他们图书馆有上万本书)

⑤have been to与have gone to的区别：have gone to(“已经去了”)表示人不在这里,have been to(“去过”)表示人在这里。如：--Where is Mr Li? –He has gone to the UK.(李先生在哪里？他去了英国。)/ --Do you know something about Beijing? –Yes,I have been to Beijing three times. (你知道北京的情况吗？是的,我去过那里三次。)

⑥在完成时中,一个瞬间性动词(一次性动作)不能与表示一段时间的状语连用,此时须将该瞬间动词改为延续性动词或状态动词。具体变化见下表：

瞬间性动词的完成时 have has (had) (already) gone to… have has (had) 延续性动词或状态动词的完成时 been in / at … been here for (two years) since (1990) come to… left… arrived… died begun ended bought... borrowed… joined… been away from… been in… been dead been on been over had… kept… been in … → 或者使用下面这个句型：

It is / has been + (多久)+ since + 主语(人)+谓语(过去时)+……+过去时间状语 [注意] 在其它的时态中也存在类似问题,记住,关键是：瞬间动词不能和表达一段时间的状语连用。如：How long may I keep the book?(这本书我能借多久？)(句子中keep取代了borrow)

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--------呵护孩子的成长，把爱的能量传递下去 (7) 过去完成时 过去完成时表示过去某一时间或某一动作发生之前已经完成的动作。简言之, 过去完成时所表示的

时间是“过去的过去”。

①过去完成时由“助动词had+动词的过去分词”构成。

②过去完成时时间状语有：by (yesterday), by then, by the end of (last…)或者由when,before等引出状语从句。有时句子中会有already, just, once, ever, never等词语,也会有for… 或since…构成的时间状语。如：They had already finished cleaning the classroom when their teacher came.(当老师来的时候他们已经打扫完了教室)/ The woman had left before he realized she was a cheat.(在他发觉那个妇女是个骗子时她已经走掉了)

③过去完成时常用于宾语从句中、after引导的从句中,或者从句是before引导的主句中。如：After I had put on my shoes and hat,I walked into the darkness.(我穿上鞋子戴上帽子走进了黑暗之中)/ He said that he had never seen a kangaroo before.(他说他以前从来没有见过袋鼠)

(8) 过去将来时 过去将来时表示在过去预计将要发生的动作或存在的状态。

①过去将来时由“助动词should(第一人称)或would(第二、三人称)+动词原形”构成。在美国英语中,过去将来时的助动词一律用“would +动词原形”。

②过去将来时常由于宾语从句中,时间状语有：later, soon, the next (day).

③在时间状语从句和条件状语从句中不可以使用过去将来时,而应该使用一般过去时。如：He promised that he would pay me a lot if I helped him with the project.(他答应付给我许多钱如果我帮助他搞那个项目)/ Every time when he was free,he would sit down and read some books.(每次只要他有空他就会坐下来看看书) ④表示纯粹的将来时用would或should,表示打算或主观认为的事情用was/were going to (+动词原形)。如：She told me she would be 18 the next month.(她告诉我她下个月就18岁了)/ She told me that she was going to have a walk with her pet dog.(她告诉我她打算带她的宠物狗去散步)

⑤过去将来时还可以表示一个过去经常性的动作。如：When it rained in the day, he would bring an umbrella with him.(白天下雨时他会随身带一把雨伞)

(9)现在完成进行时：现在完成进行时指一个从过去就开始一直延续到现在并由可能继续下去的动作,它具有现在完

成时和现在进行时双重特征,结构是：“have/has + been +动词的现在分词”。如：I have been swimming in the cold water for about two hours.(我已经在冰冷的水里游了将近两个小时)/ How long have you been waiting here?(你在这里一直等了多久？)

6、被动语态：

(1)被动语态定义：被动语态是动词的一种特殊形式,用来说明主语与谓语动词之间的关系。如果主语是 动作的

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--------呵护孩子的成长，把爱的能量传递下去 执行者(即某人做某事),便叫主动语态；如果主语是动作的承受者(即某事被做),便叫被动语态。主动与被动的区别不是词序的区别,而是主语与谓语意义上的区别。在英语中只有及物动词和一些相当于及物动词的词组才有被动语态的形式。

(2)英语中被动语态由“助动词be +动词的过去分词”构成。助动词be有时态、人称和数的变化。被动语态后的by短语有时可省去。具体结构见下表： 现在时态 一般现在时 am 谓语动词is +p.p. 构 成 are 现在进行时 am 一 般 将 来 时 will + be+p.p. 现在完成时 have(has) +been+p.p. is +being+p.p. am are is +going to+ be + p.p. are 过去时态 一般过去时 谓语动词were 构 成 过 去 进 行 时 过 去 将 来 时 would +be+p.p. 过去完成时 had +been+p.p. was +p.p. was +being+p.p. was +going to+be+p.p. were were [注] p.p.表示过去分词。

(1) 被动语态的用法：

① 不知道谁是动作的执行者(即不知道谁做)时用被动语态,省略by短语。如：A man was killed in the accident.(一个人死于事故)/ This window was broken yesterday.(这扇窗子是昨天被打破的)

②不说或者众所周知是谁做时,用被动语态,省略by短语。如：Rice is also grown in this place.(这个地方也种水稻)/ A railroad will be built here in three years.(三年之后这里将要修建一条铁路)

③强调动作的承受者,句尾加by短语。如：It was written by Lu Xun.(它(书)是鲁迅写的)/ A pet dog is never killed by its owner.(宠物狗是不会被主人宰杀的) (2) 主动语态如何改写为被动语态：

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--------呵护孩子的成长，把爱的能量传递下去

主动句： 主语(人/物) + 谓语(及物动词) + 宾语(人/物) + 其他 + 状语 (动作的执行者) (各种时态形式) (动作的承受者)

被动句： 主语(人/物) + 谓语(及物动词) + by +人 / 物 + 其他 + 状语 (动作的承受者) (be +过去分词) (动作的执行者)

(3) 注意点：

①“动词+间接宾语+直接宾语”改为被动时,可以用间接宾语做被动句的主语。如：

His teacher gave him a dictionary.→He was given a dictionary by his teacher.(老师给他一本字典→他得到老师

一本字典)

也可以用直接宾语做被动句的主语,但是需用to或者for引出原句的间接宾语。如：His teacher gave him a dictionary.→A dictionary was given ．to him by his teacher.(老师给他一本字典→一本字典由老师送给了他)/His ．father made him a kite.→A kite was made for him by his father.(他的父亲给他做了一个风筝→一个风筝由他的．．．父亲做给了他)

②“动词+宾语+动词原形”改为被动时,动词原形前要加to.如：The boss made the poor man work 12 hours a day.

→The poor man was made to work 12 hours a day.(老板让这个可怜的人一天工作12小时→这个可怜人被迫一．．

天工作12小时)

③“动词+…+介词”改为被动时,介词一般在原位不动。如：The girl takes good care of her little brother.→The girl’s ．．little brother is taken good care of by her.(女孩照顾小弟弟→女孩的小弟弟由她照顾着) ．．④“be+过去分词”未必表示被动语态,而可能是系表结构。如： He is pleased / worried / tired /…….(系表)(他高兴/焦虑/疲劳……)

He was hit / knocked down / told / shot / …….(被动)(他被击中/撞倒/关照/射中……)

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--------呵护孩子的成长，把爱的能量传递下去 7、动词的非谓语形式：动词不做谓语时的固定形式。

(1)动词的非谓语形式包括动词不定式、动名词和分词三种形式；其中分词又包含现在分词和过去分词两种形式。它

们在句子中不能单独作谓语。 (2)动词不定式：

① 形式：动词不定式基本形式由“不定式记号to+动词原形”构成。它的否定形式只要在“to” 前面加上“not”。

它的疑问形式是：“wh-疑问词+to+动词原形”。*它的被动形式：“to be +过去分词”。*它的完成形式：“to have +过去分词”。

② 动词不定式具有名词、形容词和副词的特征,即可以在句子中作主语、宾语、定语、状语、表语和宾语补足语。

但不定式也保留动词的某些特征,即不定式后面可以跟宾语、表语和状语。动词不定式加上相关成分就构成不定式短语。

③ 动词不定式可以放在谓语前句子作主语。但是通常将作主语的动词不定式或不定式短语放在谓语后面,而在主语

位置用“it”作形式主语(有时在不定式的前面还会用for sb.表示不定式的逻辑主语)。如：To help animals is helping people.(帮助动物就是帮助人)/ It is very difficult (for us) to learn Chinese well.((对于我们而言)学好汉语是非常的困难)/ It took me half an hour to work out this problem.(解出这道题花了我一个小时的时间) ④ 动词不定式可以作谓语动词(及物动词)的宾语。

[A] 及物动词+不定式一般形式：

+不定式 谓语动词(vt.) (作宾语) want(想) / try(试图) / decide(决定) / would like(想要) / hope(希望) / love(喜爱) / learn(学会) / afford(提供) / agree(同意) / fail(失败、未能) / mean(意味着) / prefer(宁愿) / wish(希望) help(帮助) begin(开始)/ start(开始)/hate(憎恨) + to (do) to可以省略 也可跟动名词,意义变化不大 (无) [说 明] 45