请问现在完成时，有哪些标志单词或例句 一般将来时和现在完成时，下面例句的对比是什么？
\u628a\u4e00\u822c\u73b0\u5728\u65f6\uff0c\u4e00\u822c\u8fc7\u53bb\u65f6\uff0c\u4e00\u822c\u5c06\u6765\u65f6\uff0c\u73b0\u5728\u8fdb\u884c\u65f6\uff0c\u8fc7\u53bb\u8fdb\u884c\u65f6\uff0c\u73b0\u5728\u5b8c\u6210\u65f6\uff0c\u8fc7\u53bb\u5b8c\u6210\u65f6\uff0c\u8fc7\u53bb\u5c06\u6765\u65f6\u548c\u4eb2\uff0c\u6709\u4e9b\u65f6\u6001\u662f\u6807\u4e0d\u5230\u7ebf\u4e0a\u7684\u3002
\u4e00\u822c\u73b0\u5728\u65f6\u662f\u5355\u8bcd\u672c\u6765\u7684\u65f6\u6001\uff0c\u5728\u5f53\u4e0b\u7528\u3002\u4f8b\u53e5\uff1aI always have dinner at home.
\u4e00\u822c\u8fc7\u53bb\u65f6\u662f\u8bf4\u660e\u8fc7\u53bbor\u4ee5\u524d\u53d1\u751f\u7684\u4e8b\uff0c\u5355\u8bcd\u53d8\u5316\u4e00\u822c\u662f\u52a0ed\u3002\u4f8b\u53e5: I jumped of the car.
\u4e00\u822c\u5c06\u6765\u65f6\u662f\u6253\u7b97\u6216\u8005\u8981\u505a\u7684\u4e8b\u60c5\uff0c\u52a8\u8bcd\u4e0d\u53d8\uff0c\u53e5\u9996\u4e3b\u8bed\u52a0shall/will/be going to \u7b49\u3002\u4f8b\u53e51\uff1aI am going to the church tomorrow. \u4f8b\u53e52\uff1aI will go to America next year. \u4f8b\u53e53\uff1aI shall go there by car.
\u73b0\u5728\u8fdb\u884c\u65f6\u662f\u73b0\u5728\u4e00\u76f4\u5728\u5e72\u7684\u4e8b\u60c5\u3002\u4f8b\u53e5\uff1aI am trying to escape from the school.
\u8fc7\u53bb\u8fdb\u884c\u65f6\u662f\u5728\u8fc7\u53bb\u67d0\u4e2a\u65f6\u95f4\u4e00\u76f4\u5728\u505a\u7684\u4e8b\u3002\u4f8b\u53e5\uff1aI was talking to Lily when he came home.
\u73b0\u5728\u5b8c\u6210\u65f6\u662f\u8fc7\u53bb\u67d0\u4e2a\u65f6\u95f4\u70b9\u5230\u73b0\u5728\u4e00\u76f4\u6301\u7eed\u5728\u505a\u7684\u4e8b\uff0c\u6ca1\u6709\u505c\u3002\u4f8b\u53e5\uff1aI have been in China for almost a year.
\u8fc7\u53bb\u5b8c\u6210\u65f6\u662f\u8fc7\u53bb\u67d0\u4e2a\u65f6\u95f4\u70b9\u4e00\u76f4\u6301\u7eed\u505a\u7684\u4e8b\u3002\u5df2\u7ecf\u505c\u4e86\u3002\u4f8b\u53e5\uff1aI had been in Mr.green's class when I was four.
\u8fd9\u4e24\u53e5\u5e94\u8be5\u610f\u601d\u4e0a\u5dee\u522b\u4e0d\u5927\uff0c\u7b2c\u4e8c\u53e5\u66f4\u591a\u662f\u5f3a\u8c03\u5b8c\u6210\u5bb6\u5ead\u4f5c\u4e1a\u8fd9\u4e2a\u4e8b\u60c5\u3002
现在完成时是英文时态的一种现在完成时的用法
have(has)+过去分词(done)
1.现在完成时用来表示现在之前已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动作或状态发生在过去但它的影响现在还存在.
I have lost my wallet.(含义是:现在我没有钱花了.)
Jane has laid the table.(含义是:已可以吃饭了.)
Michael has been ill.(含义是:现在仍然很虚弱)
He has returned from abroad. (含义是:现在已在此地)
2. 现在完成时可以用来表示发生在过去某一时刻的,持续到现在的情况,常与for,since连用.
Mary has been ill for three days.
I have lived here since 1998.
3. 现在完成时往往同表示不确定的过去时间状语连用,如already, yet, just, before, recently, lately等:
He has already obtained a scholarship.
I haven't seen much of him recently (lately).
We have seen that film before.
Have they found the missing child yet
4. 现在完成时常常与表示频度的时间状语连用,如often, sometimes, ever, never, twice, on several occasion等:
Have you ever been to Beijing
I have never heard Bunny say anything against her.
I have used this pen only three times. It is still good.
George has met that gentleman on several occasions.
5. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如now, up to these few days/weeks/months/years, this morning/week/month/year, now, just, today, up to present, so far等:
Peter has written six papers so far.
Man has now learned to release energy from the nucleus of the atom.
There has bee too much rain in San Francisco this year.
The friendly relations and cooperation between our two countries have been enhanced in the past few years.
Up to the present everything has been successful.
6. 现在完成时表示现在之前业已完成的动作,虽然其效果或影响仍然存在但已不再继续,但是有一些现在完成时的句子,在后面加上for+一段时间,则现在完成时的动作就表示延续性.
Thomas has studied Russian. (现在不再学俄语)
Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now.(同第2点用法第一个例句)
7. 现在完成时还可以用来表示过去的一个时间到现在这段时间内重复发生的动作.
We have had four texts this semester.
===================
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)、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 years.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)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：
①主语＋have / has been＋for短语
②It 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
一般后面都会有since（➕时间点）或for（➕时间段）的出现
看不懂
绛旓細鐜板湪瀹屾垚鏃剁殑鏍囧織璇嶆槸锛already銆亂et銆乯ust銆乶ever銆乪ver銆乥efore銆乻ince 涓銆乤lready adv. 鏃╁凡锛宸茬粡锛涘厛鍓;鐢ㄥ湪鑲畾鍙ヤ腑锛坆e鍔ㄨ瘝銆佸姪鍔ㄨ瘝銆佹儏鎬佸姩璇嶄箣鍚庯紝瀹炴剰鍔ㄨ瘝涔嬪墠锛夊父涓巠et杩涜杞崲銆備緥濡傦細I have already finished the work.缈昏瘧锛 鎴戝凡缁忓畬鎴愯繖椤瑰伐浣滀簡銆傛敼涓哄惁瀹氬彞锛欼 haven't finished ...
绛旓細1. 鏍囧織璇嶄竴锛宸茬粡銆傚凡缁忔槸鐜板湪瀹屾垚鏃舵渶甯歌鐨勬爣蹇楄瘝涔嬩竴锛屽畠琛ㄧず鏌愪釜鍔ㄤ綔鎴栫姸鎬佸凡缁忓畬鎴愩備緥濡傦細鈥滄垜宸茬粡瀹屾垚浜嗕綔涓氥傗濊繖鍙ヨ瘽涓殑鈥滃凡缁忊濊〃鏄庝簡鍔ㄤ綔鐨勫畬鎴愭с2. 鏍囧織璇嶄簩锛氭浘缁忋備娇鐢ㄦ浘缁忕殑鍙ュ瓙閫氬父琛ㄧず杩囧幓鍙戠敓鐨勫姩浣滄垨鐘舵佸鐜板湪鐨勫奖鍝嶃備緥濡傦細鈥滄垜鏇剧粡鍘昏繃鍖椾含銆傗濊繖鍙ヨ瘽璇存槑璇磋瘽鑰呭幓杩囧寳浜紝...
绛旓細already銆亂et銆乯ust銆乶ever銆乪ver銆乥efore銆乻ince銆1銆乤lready鐨勬剰鎬濇槸鈥滆緝鏃╁湴鈥濃滄彁鍓嶁濓紝鍙〃绀衡滄瘮棰勬兂鍙戠敓鐨勬椂闂存棭鈥濓紝涔熷彲琛ㄧず鈥滄瘮鍙兘鍙戠敓鐨勬椂闂存棭鈥濓紝鍚湁鈥滄兂涓嶅埌鏌愪簨绔熺劧宸茬粡鍙戠敓浜嗏濇垨鈥滀互涓烘煇浜嬩細鏅氫竴浜涘彂鐢熲濈殑鎰忓懗銆2銆乤lready涓鑸敤浜庤偗瀹氬彞涓備笌鍔ㄨ瘝鎼厤鏃讹紝闈欐佸姩璇嶅鐢ㄤ竴鑸紡锛屽姩鎬佸姩...
绛旓細瀹屾垚鏃剁殑鏍囧織璇嶆槸锛just锛宔ver锛宯ever锛寉et锛宎lready锛宖or锛宐efore锛宻ince锛宻o far锛宺ecently锛宼wice锛宻till锛宼ill now锛寀p to now锛宼hree times銆1銆佽繃鍘诲彂鐢熺殑鏌愪竴鍔ㄤ綔瀵圭幇鍦ㄩ犳垚鐨勫奖鍝嶆垨缁撴灉鎴栧埌鐜板湪涓烘宸茬粡鍙戠敓鎴栧畬鎴愮殑鍔ㄤ綔銆2銆佽〃绀鸿繃鍘诲彂鐢熺殑銆佹寔缁埌鐜板湪鐨勫姩浣滄垨鐘舵併傜幇鍦ㄥ畬鎴愭椂鐢ㄦ硶 鈶犺偗瀹氬彞锛...
绛旓細鐜板湪瀹屾垚鏃剁殑鏍囧織璇嶆湁锛just锛宔ver锛宯ever锛寉et锛宎lready锛宖or锛宐efore锛宻ince锛宻o far锛宺ecently锛宼wice锛宻till锛宼ill now锛寀p to now锛宼hree times绛夈傜幇鍦ㄥ畬鎴愭椂锛圱he Present Perfect Tense锛夋槸杩囧幓鐨勫姩浣滄垨鐘舵佹寔缁埌鐜板湪锛屾垨瀵圭幇鍦ㄩ犳垚鐨勫奖鍝嶏紝鍙兘鎸佺画鍙戠敓涓嬪幓銆傚湪鑻辫鏃舵佷腑锛屸滄椂鈥濇寚鍔ㄤ綔鍙戠敓鐨...
绛旓細鐜板湪瀹屾垚鏃舵爣蹇楄瘝鍒嗗埆鏄細just锛宔ver锛宯ever锛寉et锛already锛宖or锛宐efore锛宻ince锛宻o far锛宺ecently锛宼wice锛宻till锛宼ill now锛寀p to now锛宼hree times绛夈1銆佺幇鍦ㄥ畬鎴愭椂鍚箟 鐜板湪瀹屾垚鏃(The Present Perfect Tense)鏄繃鍘荤殑鍔ㄤ綔鎴栫姸鎬佹寔缁埌鐜板湪锛屾垨瀵圭幇鍦ㄩ犳垚鐨勫奖鍝嶏紝鍙兘鎸佺画鍙戠敓涓嬪幓銆傚湪鑻辫鏃舵佷腑锛屸...
绛旓細鐜板湪瀹屾垚鏃剁殑鏍囧織鏄already銆亂et銆乥efore銆乯ust銆傚畬鎴愭椂鎬佺殑鏋勬垚鍒嗕负涓ら儴鍒嗭細涓鏄姪鍔ㄨ瘝锛屼簩鏄疄涔夊姩璇嶇殑杩囧幓鍒嗚瘝-ed銆傚叿浣撴潵璇达紝鐢ㄥ姪鍔ㄨ瘝have琛ㄧず鈥滄椂鈥濓紝浠ヨ〃鏄庡姩浣滃彂鐢熺殑鏃堕棿鏄湪杩囧幓銆佺幇鍦ㄨ繕鏄皢鏉ワ紱鐢ㄨ繃鍘诲垎璇嶆潵琛ㄧず鍔ㄤ綔鐨勨滄佲濓紝浠ヨ〃鏄庤鍔ㄤ綔宸茬粡瀹屾垚銆傚畠鐨勬瀯鎴愭槸锛氫富璇+鍔╁姩璇(have/has) +...
绛旓細鐜板湪瀹屾垚鏃舵椂闂存爣蹇楄瘝锛歜efore锛宔ver锛宯ever锛宩ust锛宺ecently锛寉et锛already锛宻ince锛宻o far锛宖or锛宨n the past銆1銆乥efore浠ュ墠銆備緥鍙ワ細Have you been to the Great Wall before锛熻瘧鏂囷細浣犱互鍓嶅幓杩囬暱鍩庡悧锛2銆乪ver鏇剧粡銆備緥鍙ワ細Have you ever been to Beijing锛熻瘧鏂囷細浣犳浘鍘昏繃鍖椾含鍚楋紵3銆乶ever浠庝笉銆備緥...
绛旓細鐜板湪瀹屾垚鏃剁殑鏍囧織璇嶆湁浠ヤ笅杩欎簺锛1銆丄lready锛氱敤鍦ㄨ偗瀹氬彞涓紙be鍔ㄨ瘝銆佸姪鍔ㄨ瘝銆佹儏鎬佸姩璇嶄箣鍚庯紝瀹炴剰鍔ㄨ瘝涔嬪墠锛夊父涓巠et杩涜杞崲銆備緥濡傦細I have already finished the work.鎴宸茬粡瀹屾垚杩欓」宸ヤ綔浜嗐 鏀逛负鍚﹀畾鍙ワ細I haven't finished the work yet.鎴戣繕娌℃湁瀹屾垚杩欓」宸ヤ綔銆2銆乯ust, before, recently, still...
绛旓細鈥滅幇鍦ㄥ畬鎴愭椂鈥濇槸杩囧幓鐨勫姩浣滄垨鐘舵佹寔缁埌鐜板湪骞朵笖宸茬粡瀹屾垚銆傚畠鐨勬爣蹇楁槸already銆亂et銆乥efore銆乯ust銆乪ver銆乶ever銆乻ince+杩囧幓鐨勬椂闂寸偣鎴杅or+鏃堕棿娈电瓑绛夈傚畠鐨勬瀯鎴愭槸锛氫富璇+鍔╁姩璇(have/has) +鍔ㄨ瘝鐨勮繃鍘诲垎璇嶃傚畬鎴愭椂鎬佺殑鏋勬垚鍒嗕负涓ら儴鍒嗭細涓鏄姪鍔ㄨ瘝锛屼簩鏄疄涔夊姩璇嶇殑杩囧幓鍒嗚瘝-ed銆傚叿浣撴潵璇达紝鐢ㄥ姪鍔ㄨ瘝...
