高中英语
35. She was surprised to find the fridge empty; the child _____ everything! A. had been eating B. had eaten C. have eaten D. have been eating
在这两道题中，到底什么时候用现在完成时，什么时候用过去完成时？？？？？
请解析的透彻一些，有劳了。。。。。 展开
1看一些人打扫了沙发 好，不是我我没做wasn't didn't 说明发生在过去沙发是干净的影响到现在所以选C2她惊奇地发现冰箱空了；孩子吃光了一切！ was surprised 说明发生在过去的过去B.此题考查时态。句意“她吃惊的发现冰箱空了；这个孩子吃掉了所有的东西！”。据前半句可知，孩子吃掉东西这个动作是发生在“was surprised”之前，因此用过去完成时。
现在完成时结构：
have+过去分词
He has been to Beijing.
这句话中be to表示 去过…… 的意思，所以have+过去分词，be→been
现在完成时被动语态结构：
have+been+过去分词
而被动语态结构：be+过去分词 ,完成时中be 变成了been
He has been taught English for five years
现在进行时：be动词+动词ing形式，如：i am speaking 我正在说话
过去进行时：be动词的过去式+动词ing形式，如：i was speaking at that moment 那一刻我正在说话
过去将来时：would+be/动词，如，i would be there if i knew 如果我知道我将去那
现在完成进行时：have+been+动词ing，如：i have been waiting here all the time我一直在这等着
现在完成时讲解
一、基本结构
助动词have/has+过去分词(done)
二、句型
否定句： 主语+have/has+not+过去分词+其他.
一般疑问句： Have/Has+主语+过去分词+其他.
简略答语： Yes, 主语 + have/has.(肯定) No, 主语 + haven't/hasn't.(否定)
三、用法
1、现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果
I have spent all of my money (so far).(含义：现在我没有钱花了.)
Guo Zijun has (just/already) come. (含义：郭子君现在在这儿)
My father has gone to work.(含义是：我爸爸现在不在这儿)
2、现在完成时可以用来表示发生在过去某一时刻的,持续到现在的动作（用行为动词表示）或状态（be动词表示）,常与for+时间段,since+时间点或过去时的句子连用.
①for+时段
②since+过去一个时间点译为自从„„以来
③since+时段+ago
④since+从句过去时
⑤It is+时段+since+从句过去时
Mary has been ill for three days.
I have lived here since 1998.
四、 has gone (to),has been (to), has been (in) 的区别
Have/Has gone(to) :去了(现在不在说话现场)
eg：A：Where is your father? B：He has gone to Shanghai.
Have/Has been (to) :去过（已不在去过的地方）
eg：My father has been to Shanghai.
Have/has been in呆了多久（还在所呆的地方）
eg：My father has been in Shanghai for two months/since two months ago.
五、现在完成时的标志
1. 现在完成时的含义之一是过去完成的动作对现在仍有影响,用以下四大标志词可以表达这种含义: * 以already, just和yet为标志
He has already got her help. 他已得到她的帮助。
He has just seen the film. 他刚刚看过这场电影。
He hasn't come back yet. 他还没有回来。
* 以ever和never为标志
This is the best film I have ever seen. 这是我曾经看过的最好的一部电影。
He has never been to Beijing. 他从没有到过北京。
* 以动作发生的次数为标志
He says he has been to the USA three times. 他说他已经去过美国三次了。
* 以so far+到目前为止为标+before
He has got to Beijing so far. 到目前为止他已到了北京。
She has passed the exam so far. 到目前为止她已经通过了考试。
2.过去已经开始的动作一直延续到现在, 甚至有可能继续延续下去,我们可以从动作“延续”的特性和“时间”点段的区分入手,进一步学习现在完成时。
* ①for+时段 ②since+过去一个时间点(过去从句)为标志
注意 1)现在完成时不能单独与过去的时间状语连用, 如yesterday,last week, three years ago 等; 2) 不能与when连用 2.现在完成时往往同表示不确定的过去时间状语连用 六、过去分词
1 、规则动词：规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则：
(1)、一般动词在词尾直接加“ ed ”。 work---worked---worked ,visit---visited---visited
(2)、以“ e ”结尾的动词只在词尾加“ d ”。 live---lived---lived ,
(3)、以“辅音字母 + y ”结尾的动词将 "y" 变为 "i" 再加“ ed ”。 study---studied---studied ,cry---cried---cried
(4)、重读闭音节结尾,末尾只有一个辅音字母,先双写该辅音字母,再加“ ed ”。
stop---stopped---stopped , drop---dropped--dropped
2 、不规则动词 七、瞬间动词(buy,die,join,come,go ,leave,join …)不能直接与for since 连用,要改变动词： buy----have borrow -----keep come/arrive/reach/get to-----be go out----be out leave ----be away begin-----be on finish----be over open----be open close -----be closed die----be dead(死) ★1、 have代替buy ： My brother has had(不能用has bought) this bike for almost four years. ★2、 用keep或have代替borrow： I have kept(不能用have borrowed) the book for quite a few days. ★3、用be替代become： How long has your sister been a teacher? ★4、用have a cold代替catch a cold： Tom has had a cold since the day before yesterday. ★5、用wear代替put on b)用“be+形容词”代终止性动词 1、be married代marry 2、be ill代fall (get) ill 3、be dead代die 4、be asleep代fall (get) asleep 5、 be awake代wake/wake up 6、be gone代lose,die,sell,leave 7、be open代open 8、be closed代close/shut 9、be missing(gone,lost)代lose c)用“be+副词”代终止性动词 1、“be on”代start,begin 2“be up”代get up 3“be back(to)”代return to,come back to,go back to 4“be here (there)”代come(arrive,reach,get) here或go (arrive,reach,get) there 等等 d)用“be+介词短语”代终止性动词 1.“be in/at +地点”代替go to /come to 2.用be in the army 代替join the army 3.“be in/at +地点”代替move to 常用瞬间动词变延续性动词表
1. have arrived at/in sw. got to/reached sw. come/gone/moved to sw. →have been in sw./at„相应的介词
2. have come/gone back/returned → have been back 3. have come/gone out →have been out
4. have become → have been 5. have closed / opened→ have been close/open
6. have got up → have been up 7. have died → have been dead
8. have left sw. → have been away from sw
9. have fallen asleep/got to sleep → have been asleep
10. have finished/ended/completed → have been over 11. have married → have been married
12. have started/begun to do sth. → have done sth. 13. have begun → have been on
14. have borrowed/bought →have kept/had 15. have lost → haven’t had
16. have put on →have worn 17. have caught /get a cold → have had a cold
18. have got to know → have known 19. have/has gone to → have been in
20. have joined/have taken part in the league/the Party/the army →have been a member of/ have been
in/have been the Party’s member/the league member/the soldier„
过去完成时就是had加过去分词新概念第2册的Lesson 14 Do you speak English? 上是这样解释的：
在第1册的第119—120课，我们第一次接触到了过去完成时。有人认为，过去完成时是表示“很久以前发生的事情”，这个概念是错误的。过去完成时常常用来表示发生在过去的两件事、动作中哪一个发生在前。
（然后是几个例子）：
He finished work.He went home.他结束了工作。他回家了。
我们也可以说：
After he had finished work he went home.他结束工作后就回家了。
注意一下句子是如何连在一起的，要特别注意用斜体印出的词。（因为不能打斜体，所以我就用括号表明一下咯~~）
The children ran away.They broke the window.孩子们跑了。他们打碎了玻璃。
The children ran away after they had broken the window.孩子们打碎玻璃之后跑了。
The sun set.We returnde to our hotel.太阳下山了。我们回到了旅馆。
As soon as the sunhad set we returned to our hotel.太阳一下山我们就到了旅馆。
He finished lunch.He asked for a glass of water.他吃完了中午饭。他要一杯水。
When he had finished lunch he asked for a glass of water.他吃完中午饭后要了一杯水。
I did not understand the problem.He explained it.我不懂这个问题。他解释了。
I had not understand the problem until he explained it.在他解释之前我不懂这个问题。
我们初三都学了
亲。您的最后一句话真心让人不爽。。。。。这是两道活生生的高考题呀！！！好吧，您太牛了，自叹不如。。。。但也不要这么伤自尊地说。。。。。。
可是我们真的学了是在上半学期2012年
