苏教译林版八下英语语法总复习资料及练习_第1页
苏教译林版八下英语语法总复习资料及练习_第2页
苏教译林版八下英语语法总复习资料及练习_第3页
苏教译林版八下英语语法总复习资料及练习_第4页
苏教译林版八下英语语法总复习资料及练习_第5页
已阅读5页,还剩20页未读 继续免费阅读

下载本文档

版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领

文档简介

1、牛津八下英语语法总复习一、现在完成时的“完成用法”和“未完成用法”1.现在完成时的"完成用法" 现在完成时的"完成用法"指的是动作发生在过去某一时刻并已结束,但该动作对现在产生了影响,与现在情况具有因果关系。例如:He has turned off the light.他已把灯关了。(动作结束于过去,但说明的是现在的情况-灯现在不亮了。)现在完成时"完成用法"的特点是动作不延续,因此,该时态只能与表示不定的过去时间状语(如:already,yet,before,recently等)、频度时间状语(如:never,ever,once等)

2、、包括现在时刻在内的时间状语(如:this morning month year.,today等)连用。例如: Have you found your pen yet?你已找到你的钢笔了吗?2.现在完成时的"未完成用法" 现在完成时的"未完成用法"指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。例如:He has lived here since 1978.自从1978年以来,他一直住在这儿。(动作起始于1978年,一直住到现在,可能还要继续住下去。) I have been in the army for more than 5 ye

3、ars.我在部队已经呆了五年多了。(动作开始于5年前,一直延续至今,有可能还要继续下去。) 此种用法的句中常需一个表示一段时间的状语(由since或for引导),或表示与现在时刻相连的时间状语(如:up to now,so far到目前为止)等。例如:I have heard nothing from him up to now.到目前为止我没有他的任何消息。 注意:(1)现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。如:come,go,arrive,leave,join,become,die等。 (2)现在完成时常见两种句型:主语have /

4、has beenfor短语 It is一段时间 since从句 例如:He has been in the League for three years.或It is three years since he joined the League. 他入团已三年了。3、延续性动词和终止性动词的概念英语中,动词按其动作发生的方式、动作发生过程的长短,可分为延续性动词和终止性动词。延续性动词 表示能够延续的动作,这种动作可以延续下去或产生持久影响。如:learn, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, s

5、leep, live, stay等。终止性动词 也称非延续性动词、瞬间动词或短暂性动词,表示不能延续的动作,这种动作发生后立即结束。如open, close, finish, begin, come, go, arrive, reach, get to, leave, move, borrow,buy等。4、延续性动词的用法特征1.延续性动词可以用于现在完成时,其完成时态可与表示"段时间"的状语连用。表示"段时间"的短语有:for two years, during the past three years, since last year, how l

6、ong等。如:I have learned English since I came here.自从我来到这儿就学英语了。2.延续性动词不能与表示短暂时间的"点时间"状语连用。如:It raind at eight yesterday morning.(误) rain为延续性动词,而at eight表示"点时间",前后显然矛盾。如果用延续性动词表示一瞬间的动作,可以借助come, begin, get等终止性动词来表示。上句可改为:It began to rain at eight yesterday morning.(正)又如:-When did yo

7、u get to know Jack?-Two years ago.-Then you've known each other for more than two years.-That's right.5、终止性动词的用法特征1.终止性动词可用来表示某一动作完成,因此可用于现在完成时。如:The train has arrived.火车到了。Have you joined the computer group? 你加入电脑小组了吗?2.终止性动词表示的动作极其短暂,不能持续。因此,不可与表示一段时间的状语连用(只限肯定式)。如:(1)他死了三年了。 误:He has died

8、 for three years.正:He has been dead for three years. 正:He died three years ago.正:It is three years since he died. 正:Three years has passed since he died.(2)他来这儿五天了。 误:He has come here for five days.正:He has been here for five days. 正:He came here five days ago.正:It is five days since he came here. 正

9、:Five days has passed since he came here. (1)、(2)句中的die、come为终止性动词,不能与表示"段时间"的状语连用。那么,应如何正确表达呢?可以采用下面的四种方法: (1)将句中终止性动词转换为相应的延续性动词,如上面两例中的第一种正确表达方式。下面列举几例:leavebe away, borrowkeep, buyhave, begin/startbe on, diebe dead, move tolive in, finishbe over, joinbe in/be a member of, open sth.keep

10、 sth. open, fall illbe ill, get upbe up, catch a coldhave a cold。 (2)将句中表示"段时间"的状语改为表示过去确定时间的状语,如下面两例中的第二种正确表达方式。 (3)用句型"It is+段时间+since."表达原意,如上面两例中的第三种正确表达方式。 (4)用句型"时间+has passed+since."表达原意,如上面两例中的第四种正确表达方式。3.终止性动词可用于现在完成时否定式中,成为可以延续的状态,因而可与表示一段时间的状语连用。如:He hasn'

11、;t left here since 1986.I haven't heard from my father for two weeks.4.终止性动词的否定式与until/till连用,构成"not+终止性动词+until/till ."的句型,意为"直到才"。如:You can't leave here until I arrive.直到我到了,你才能离开这里。I will not go to bed until I finish drawing the picture tonight.今天晚上直到我画完画,我才上床睡觉。5.终止性动

12、词可以用于when引导的时间状语从句中,但不可以用于while引导的时间状语从句中。when表示的时间是"点时间"(从句谓语动词用终止性动词),也可以是"段时间"(从句谓语动词用延续性动词)。而while表示的是一个较长的时间或过程,从句谓语动词用延续性动词。如:When we reached London, it was twelve o'clock. (reach为终止性动词)Please look after my daughter while/when we are away. (be away为延续性动词短语)6.终止性动词完成时不可与

13、how long连用(只限于肯定式)。如:误:How long have you come here? 正:How long have you been here?正:When did you come here?二、现在完成时与一般过去时的区别1. 一般过去时表示过去某个时间发生的事、存在的状态或经常发生的动作。说话的侧重点只在于陈述一件过去的事情,不强调对"现在"产生的影响。如:He visited Guilin in 1998.他1998年参观过桂林。(只说明去桂林的时间)2. 现在完成时表示动作发生在过去,对现在造成了影响或产生了结果。不与确定的过去时间状语连用。如

14、:Jill has bought a new computer.吉尔买了一台新电脑。(着重点是现在有了一台新电脑)3. 两种时态的区分 (1)一般过去时的谓语动词用过去式,而现在完成时的谓语基本构成是"助动词have /has +过去分词"。如:The film started at 7 oclock. He has been a teacher for many years. (2)一般过去时通常与表示过去的时间状语连用。如:yesterday, last week, two years ago, just now, in 2002等;而现在完成时则常与just, alr

15、eady, ever, never等副词和these days, this week, since., for.等表示一段时间的状语连用。看看以下的几组句子,有什么区别? Have you seen the film?(A) Did you see the film?(B) 说明 你看过这部电影吗?(A)句强调的是被问者对剧情是否了解;(B)句强调的是看这部电影的动作是否发生过,并不强调是否知道其内容。 How has he done it?(A) How did he do it?(B)说明他是怎么做的这件事?(A)句强调的是他做这件事的方式对现在产生了某种影响;(B)句单纯的询问做这件事的

16、方式。 He has lived in Beijing for 8 years.(A) He lived in Beijing for 8 years.(B)说明他在北京住了8年。(A)句讲的是到目前为止他在北京住了8年,可能还会继续在北京住下去。(B)句讲的是他在北京住过8年,现在不在北京了。三、现在完成时考点例析现在完成时是较难掌握、中考考查较多的时态。涉及的考点有:一、考查其构成"助动词have (has) +动词过去分词"构成现在完成时。如:1. Kate's never seen Chinese films,_ ? A. hasn't she B.

17、 has she C. isn't she D. is she析:陈述句部分含否定词never,简略问句部分要用肯定式,又因Kate's是Kate has的缩写,故选B。2. His uncle has already posted the photos to him. (改为否定句)His uncle _ posted the photos to him _. 析:already常用在肯定句中,yet常用在否定句、疑问句中,故填hasn't, yet。3. -Ann has gone to Shanghai. -So _her parents. A. has B. h

18、ad C. did D. have析:"so+助/系/情态动词+主语"结构中的动词形式应与前句结构中动词形式保持一致,又后句的主语为her parents是复数,故选D。二、考查其用法与标志词(一)当句中有never, ever, just, already, yet, before等时,常用现在完成时。如:1. -Mum, may I go out and play basketball? -_you_ your homework yet? A. Do; finish B. Are; finishing C. Did; finish D. Have; finished2.

19、 -_ you _anywhere before? -Yes, but I can't remember where I_A. Did; surf; surfed B. Have; surfed; surfed C. Did; surf; have surfed D. Have; surfed; have surfed析:据yet和before可知,应用现在完成时,故1题选D,2题选D。(二)当句中有"for +段时间"或"since +点时间"等时,主句常用现在完成时,谓语动词必须是延续性动词,若是非延续性动词,要改为延续性动词或表状态的词(短

20、语)。如:1. His brother has been to Stone Forest twice_he came to Yunnan. A. after B. before C. since D. for析:主句用的是现在完成时,而从句用的是一般过去时,故选C。2. Tom_the CD player for two weeks.A. has lent B. has borrowed C. has bought D. has had析:A、B、C均为非延续性动词,在肯定句中不与表"段时间"的短语连用,故选D。3. I_a letter from him since he

21、 left. A. didn't receive B. haven't got C. didn't have D. haven't heard析:据since可知,应排除A、C,"hear from sb.=receive/get/have a letter from sb."意为"收到某人的来信",故选B。三、考查have/has been (to, in)/have/has gone (to)的区别。如:1. -Have you ever_Lintong to see the Terra Cotta Warriors?

22、-Yes, I have. A. went to B. gone to C. been in D. been to析:据句中的have,排除A,B项意为"去某地了",C项意为"一直呆在某地",D项意为"去过某地",符合题意,故选D。2. My parents _ Shangdong for ten years. A. have been in B. have been to C. have gone to D. have been析:本题句中有"for+段时间"结构,据此可排除C,B项意为"去过某地&qu

23、ot;,不合题意,D项缺介词,故选A。四、考查现在完成时与其他时态的联系和区别。如:1. Sun's aunt has gone there for ten years.(改成正确的句子)析:非延续性动词与"段时间"连用时,除了把非延续性动词改成延续性动词外,还可把动词改为一般过去时或借助句型"It's +段时间+since+从句"进行句子转换。故答案为:Sun's aunt has been there for ten years. /Sun's aunt went there ten years ago. /It

24、9;s ten years since Sun's aunt went there. 2. Susan has been in this city for more than ten years.(改为同义句)_more than ten years _Susan _to this city. 析:据上题分析,且since引导的从句要用一般过去时,故填It is, since, came。3. I won't go to the concert because I _my ticket. A. lost B. don't lose C. have lost D. is

25、coming析:因我丢了票的动作发生在过去,而且对现在造成了我不能参加音乐会的结果,符合现在完成时所表示的含意,故选C。现在完成时专项练习题及答案一、单项选择。1、Both his parents look sad . Maybe they _what's happened to him . . knew . have known . must know .will know 2、He has _ been to Shanghai , has he ? . already .never .ever . still 3、Have you met Mr Li _? . just . ago

26、 .before . a moment ago 4、The famous writer _ one new book in the past two year . . is writing .was writing .wrote .has written 5、Our country _ a lot so far . Yes . I hope it will be even _ . . has changed ; well . changed ; good . has changed ; better . changed ; better 6、Zhao Lan _already _in this

27、 school for two years . . was ; studying . will ; study . has ; studied . are ; studying 7、We _ Xiao Li since she was a little girl . . know . had known . have known . knew 8、Harry Potter is a very nice film .I_ it twice . . will see . have seen . saw .see9、These farmers have been to the United Stat

28、es . Really ? When _ there ? . will they go . did they go . do they go . have they gone 10、_ you _ your homework yet ? Yes . I _ it a moment ago . . Did ; do ; finished . Have ; done ; finished . Have ; done ; have finished . will ; do ; finish 11、His father _ the Party since 1978 . . joined . has j

29、oined . was in . has been in 12、Do you know him well ? Sure .We _ friends since ten years ago . . were . have been . have become . have made 13、How long have you _ here ? About two months . been . gone . come . Arrived14、Hurry up! The play _ for ten minutes . . has begun . had begun . has been on .

30、began 15 It _ ten years since he left the army . is . has . will . was 16、 Miss Green isn't in the office . she_ to the library . .has gone . went .will go . has been 17、My parents _ Shandong for ten years . . have been in . have been to . have gone to . have been 18、The students have cleaned th

31、e classroom, ? A. so they B. dont they C. have they D. havent they 19、 has Mr White been a member of Greener China since he to China? A. How soon, comes B. How often, got C. How long, came D. How far, arrived20His uncle for more than 9 years. A. has come here B. has started to workC. has lived there

32、 D. has left the university 二、句型转换。 1、He has never surfed,_ ?(改成反意疑问句) 2、They have been here since 2000. (对划线部分提问)_have they been here? 3、The old man _ last year. He _for a year(die) (动词填空) 4、This factory opened twenty years ago.(同义句转换) This factory _ for twenty years. 5、Miss Gao left an hour ago. (

33、同义句转换) Miss Gao _ _ _ _ an hour ago. 6、Her mother has been a Party member for three years .(同义句) Her mother _ the Party three years _ . 7、The Green Family moved to France two years ago. (同义句转换) _ two years _ the Green family moved to France. 8、The bus has arrived here. It arrived ten minutes ago. (把

34、两个句子合并成一个句子) _ 三、        汉译英。 1、 吉姆已做完作业,他现在有空了。 _2、 他昨天收到一封信。 _3、 我父亲以前到过长城。 _4、 她还没有看过那部新电影。 _5、 她去过上海。 _6、 他这些天上哪儿去了? _参考答案: 一、单项选择。 1、现在完成时主要强调过去发生的】、作对现在造的影响,或过去发生的动作还未结束,一直持续到现在或将来,重点在于对现在的影响。这种考查难度较大,往往无时间状语,需要从上下文分析、推理才行。故上两侧根据上下文分析、推理,正确答案是。 2、现在完成时常与alrea

35、dy(已经),just(刚刚,正好),ever(曾经),never(从来,也不;从不),before(以前),yet(仍然)等连用。故2应选B。 3、C 4、现在完成时常与recently(近来),so far(到目前为止),in the past/“last + 一段时间”等时间状语连用。因为上述短语表示的是从现在起往前推算的一段时间,句中的动作是从过去某一时间或时刻开始持续到现在的。故4应选D。 5、C 6、现在完成时时常与“for +时间段或since +过去时间点”连用(含从句,从句过去时)。故6应选C。 7、C 8、现在完成时还与once(一次),twice(两次),three ti

36、mes(三次),several times(几次)等表示重复次数的词语连用。故8应选B。 9、现在完成时与一般过去时容易混淆,就是因为它们所表示的动作都发生在过去,但二者又有区别:一般过去时表示过去某个时间发生的事、存在的状态或经常发生的动作,说话的侧重点在于陈述一件过去的事情,与现在没有关系;现在完成时表示与现在有关系的发生在过去的动作,它不与表示过去的时间状语(如yesterday , last week , a moment ago等)连用。故9的正确答案为B。 10、B 11、现在完成时中,非延续性动词不能与for和since引导的表示一段时间的状语连用,通常是用相应的延续性动词来代替

37、。故11的正确答案依次为:D。 12、B 13、A 14、C 15、A。 16、“have/has gone to + 地点”表示“某人去了某地(还未回来)”,指主语所指的人不在这儿。“have/has been in + 地点”表示“在某地呆了多长时间”,常与表示时间的状语连用。“have/has been to +地点”表示“曾经去过某地(但现在已不在那儿)。”故16的正确答案为A。 17、A 18、D 19、C 20、C 二、句型转换。 1、has he? 2、How long 3、died, has been dead 4、has been open 5、has been away 6

38、、joined;ago 7、It is, since 8、The bus has been here for ten minutes. 三、汉译英。 1、Jim has finished doing his homework already. He is free now. 2、He received a letter yesterday. 3、My father has been to the Great Wall before. 4、She hasn't seen the new film yet. 5、She has been to Shanghai. 6、Where has h

39、e been these days?(UNIT2)过去进行时(注意when while as引导的时间状语从句。)(UNIT3)被动语态复习“三步曲”被动语态是动词语态的一种形式,表示主语是动作的承受者。在历年的中考题中,都有一定数量的考查被动语态的题目。因此,有必要对被动语态进行系统复习。第一曲:掌握被动语态的结构被动语态由"助动词+及物动词的过去分词"构成。不同时态的被动语态的差异主要体现在助动词be的变化上,同时助动词be还要在人称和数上与主语保持一致。现将初中阶段常见的几种时态的被动语态总结如下:1.一般现在时的被动语态:am/is/are+done(指及物动词的过

40、去分词,下同)如:English is used all over the world.2.一般过去时的被动语态:was/were+done如: The picture was painted two years ago.3.现在进行时的被动语态:am/is/are+being+done如: The flowers are being watered by them now. 4.现在完成时的被动语态:have(has)+been+done如:The room has been cleaned.5.一般将来时的被动语态:will/be going to+be+done如:The work wi

41、ll be finished tomorrow.6.含有情态动词的被动语态:情态动词+be+done如:Your homework must be handed in today.其它几种特殊句型:It is said that . It is well known that . It is reported that.have sth done 第二曲:掌握主动语态变被动语态的方法把主动语态变为被动语态时,应走好以下三步:1)主动语态的宾语变为被动语态的主语; 2)主动语态的谓语动词由主动语态形式变为被动语态形式; 3)主动结构的主语变为介词by的宾语,组成介词短语,放在被动结构的谓语动词之

42、后。在无须说明动作的执行者或只强调动作的承受者时,by短语可以省略。请看示范:主动语态:My brother repaired that bike yesterday. 主语 谓语动词 宾语其余部分被动语态:That bike was repaired (by my brother) yesterday. 主语 谓语动词 by+宾语其余部分对于主动语态变为被动语态方法的考查,主要在句型转换题目中出现。只要能够按照上面介绍的方法去做,一般是能够做对的。第三曲:注意主动语态变为被动语态的几种特殊句型1.含有短语动词的被动语态一般来说,只有及物动词才有被动语态。另外,许多不及物动词加上介词或副词构成

43、的短语动词,相当于及物动词,后面也可加宾语。在变被动语态时,注意不可丢掉后面的介词或副词,常见的这类短语动词有:take care of, look after, take off, look at, send for, look up等。如:The old people should be taken good care of.2.含有双宾语的动词的被动语态含有双宾语的主动句改为被动句时,应将其中一个宾语改为被动结构的主语,另一个宾语仍保留在原处。一种情况是把间接宾语(指人)变为主语,直接宾语(指物)不变。另一种情况是把直接宾语(指物)变为主语,间接宾语(指人)不变,这时,间接宾语前通常加介

44、词to,有时加for。如:My father gave me a new book on my birthday.I was given a new book (by my father) on my birthday. (间接宾语作了主语)A new book was given to me (by my father) on my birthday. (直接宾语作了主语)3.带有复合宾语的动词的被动语态带有复合宾语(宾语和宾语补足语)的主动语态变为被动语态时,只把宾语变为被动语态的主语,原来的宾语补足语不动。同时,如果宾语补足语是省略to的动词不定式,变为被动语态时,必须加上不定式符号to

45、,这类动词有make, let, see, hear, watch等。如:We find English very useful. English is found very useful. 宾语宾补I often hear him sing in his room. He is often heard to sing in his room. 宾语 宾补4.有的动词的主动形式可以表示被动意义,这类动词有: wash, sell, smell, taste, sound, feel等。如:The books sell well. The food tastes good.以上四种情况在中考题目

46、中经常出现,同学们在碰到类似题目时,应首先分析属于哪种情况,然后再根据掌握的知识来做题。二、被动语态考点归纳1. 主动语态改为被动语态时,被动语态应和主动语态的时态保持一致。如:We speak English . (改为被动语态) English _ _ by us. 分析此句主动语态为一般现在时态,被动语态也应用一般现在时态,因此,答案应是is spoken。2. 注意被动语态的谓语结构。一般现在时是:am / is / are + p.p ;一般过去时是:was / were + p.p ;现在完成时是:have / has / been + p.p;现在进行时是:am / is / a

47、re / + being + p.p;含有情态动词的是:情态动词be + p.p。有诗曰:被动语态须注意,谓语不离“be”“p.p”。主谓一致别忘记,“进行”易丢一个“be”。(注:p.p过去分词)。如:We must take good care of our eyes. (改为被动语态) Our eyes must _ _ good care of. 分析此句中含有情态动词must,那么,我们根据“情态动词be+p.p.”的公式可知,答案应是be taken。3. 注意句中主谓语的一致关系。如:Tea _ (grow)in southeast of China and India. 分析此

48、句中主语tea是不可数名词,作主语时谓语动词应用单数形式。而此句说明的又是一自然现象,因此就应用一般现在时态。所以,答案应是is grown。4. 注意复合宾语的变化。如:They couldn”t make the cow go. (改为被动语态)分析the cow go 在句中作make的复合宾语。一般情况下,变为被动语态后,宾语补足语的结构形式、所处位置原封不动地保存下来,但make / have / let / see / watch / hear 等后原可省的to要还原回来。显然,此句中,the cow go 中省去的to应还原回来,因此答案应是The cow couldn”t be

49、 made to go. 5. 注意双宾语的变化。如:Mr Smith showed the students two pictures yesterday . (改为被动语态)Two pictures _ _ _ the students by Mr Smith. 分析变为被动语态时,双宾语中的任何一个皆可变为主语,一般变直接宾语,但间接宾语前必须加上介词to或for。此句中显然是把直接宾语变为被动语态的主语,那么,间接宾语前须加上介词to,所以答案应是were shown to。6. 注意短语动词中的“小词”。如:The old men and the children _ in our

50、country. A. must take good care B. must be taken good careC. must be taken good care of D. must take good care of 分析短语动词是一个不可分割的整体,应当做一个词来看待,变成被动语态后,“小词”不能丢弃。因此,此题答案应是C。被动语态专项练习1. How long _ at this job?  Since 1990.    A. were you emp

51、loyed  B. have you been employed C. had you been employed  D. will you be employed 2. What happened to the priceless works of art? _. A. They were destroyed in 

52、the earthquake B. The earthquake was destroying them C. They destroyed in the earthquake D. The earthquake destroyed them 3. If city noises _ from increasing, people_ shout to 

53、;be heard even at the dinner  table 20 years from now. A. are not kept; will have to  B. are not kept; have to  C. do not keep; will have to  D. 

54、do not keep; have to  4.Do you like the material?    Yes, it _ very soft.   A. is feeling  B. felt  C. feels  D. is felt 5. I need one more stamp

55、 before my collection _.   A. has completed  B. completes C. has been completed  D. is completed  6. All the preparations for the task _ , and we're re

56、ady to start. A. completed  B. complete  C. had been completed  D. have been completed  7. Hundreds of jobs _ if the factory closes. A. lose  B. will be lost  C

57、. are lost  D. will lose  8. A new cinema_ here. They hope to finish it next month.  A. will be built  B. is built  C. has been built  D. is bein

58、g built  9. After the class,the students went out of the classroom one by one, but only Mary_.   A. left  B. had left  C. was leaving  D. was left 10. The&

59、#160;teacher told the students that they_ to be useful men to the country.  A. were all expected  B.were all expecting  C. all were expected  D. all expected 11. He_

60、in a shower last night and got wet through. A. caught  B. was caught  C. had caught  D. caught up  12. The thief_ when he was stealing a wallet from a woman. A. happened to notice  B. was taken place to notice   C.&#

温馨提示

  • 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
  • 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
  • 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
  • 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
  • 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
  • 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
  • 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

最新文档

评论

0/150

提交评论