现在完成时什么时候用
1、过去发生的动作对现在造成的影响。2、过去的动作或状态持续到现在并且已经完成或可能持续下去。3、现在完成时表示将来。4、现在完成时表示重复。
句型构成
完成时态的构成分为两部分：一是助动词，二是实义动词的过去分词-ed。具体来说，用助动词have/has表示“时”，以表明动作发生的时间是在过去、现在还是将来；用过去分词来表示动作的“态”，以表明该动作已经完成，而且对现在有一定的影响。
基本结构：主语+have/has+动词的过去分词（p.p）
现在完成时用法
①肯定句：主语+have/has+动词的过去分词(p.p)（V-ed）+宾语（或者其他）.
②否定句：主语+have/has not(haven't/hasn't)+动词的过去分词（p.p）（V-ed）+宾语.
③一般疑问句：Have/Has+主语+动词的过去分词（p.p)（V-ed）+宾语（或者其他）?
肯定回答：Yes,I/they/we/you have.或Yes,she/he/人名has.
否定回答：No,I/they/we/you haven't.或No，she/he/人名hasn't.
④特殊疑问句：特殊疑问词+一般疑问句（have/has+主语+过去分词+其他）
⑤被动语态：
现在完成时的被动语态的肯定式为：have/has+been+done。如：
The experiment has been done successfully.这个实验做得很成功。
现在完成时的被动语态的否定式为：have/has+not+been+done。如：
Tom’s novel has not been published.汤姆的小说还没有被出版。
现在完成时的被动语态的一般疑问句需将have/has提到主语的前面。如：
Has his bike been repaired?他的自行车修好了吗?
现在完成时的被动语态的特殊疑问句为：疑问词+have/has+been+done?如：
Who has been invited?谁受到了邀请?
绛旓細11銆佺幇鍦ㄥ畬鎴愭椂鍙悓long ago杩炵敤銆傜幇鍦ㄥ畬鎴愭椂鏈夋椂鍙互鍚宭ong ago杩炵敤锛岃繖鏍风敤鐨刲ong ago鎴栦负浜嬪悗鎯冲埌鐨勬坊琛ヤ箣璇嶏紝鎴栨寚姣旇緝绗肩粺鐨勮繃鍘伙紝鎴栬〃绀虹粨鏋溿傛湁鏃讹紝鐜板湪瀹屾垚鏃惰繕鍙互鍚屽叿浣撹繃鍘绘椂闂磋繛鐢紝涓烘坊琛ヤ箣璇嶃12銆佺幇鍦ㄥ畬鎴愭椂鍙互琛ㄧず杩囧幓閲嶅鐨勫姩浣滐紝甯镐笌often锛宎lways绛夎繛鐢ㄣ13銆佺幇鍦ㄥ畬鎴愭椂鍙互琛ㄧず杩囧幓鐨...
绛旓細鐜板湪瀹屾垚鏃鏈変竴浜涙爣蹇楁х殑鏃堕棿鐘惰锛 鑰冪偣涓锛歠or + 鏃堕棿娈碉紱since + 鏃堕棿鐐 They have lived in Beijing for five years. They have lived in Beijing since 1995. I have learned English for ten years. 鑰冪偣浜岋細甯歌鐨勪笉纭畾鐨勬椂闂寸姸璇細lately; recently, just, already, yet, up to now;...
绛旓細鍥炵瓟锛氫竴鑸湪2绉嶆儏鍐典笅浣跨敤鐜板湪瀹屾垚鏃鎬併 1)鎸佺画鎬х殑鍔ㄤ綔寤剁画鑷充粖銆 鍩烘湰缁撴瀯:涓昏 + have done + 涓娈鏃堕棿 渚:鎴戝凡缁忓湪杩欓噷宸ヤ綔5骞翠簡銆 I have worked here for 5 years. 鎴栬 I have worked here since 5 years ago. 2)鐬棿鎬х殑鍔ㄤ綔宸茬粡鍙戠敓杩囦簡,涓斿鐜板湪鏈夊奖鍝嶃 鍩烘湰缁撴瀯:涓昏 + have...
绛旓細涓庣幇鍦ㄥ畬鎴愭椂鎬佽繛鐢ㄧ殑鏃堕棿鐘惰锛Before(鍦ㄢ︿箣鍓);so far(鍒扮洰鍓嶄负姝);till now(鐩村埌鐜板湪);just(鍒氬垰);since(鑷粠鈥);Already(鏃╁凡缁);for+鏃堕棿娈(宸茬粡)绛夋椂闂寸姸璇彲浠ヤ笌鐜板湪瀹屾垚鏃惰繛鐢ㄣ傞亣鍒版椂闂寸姸璇: for+鏃堕棿娈电殑鏃跺欙紝瑕佷娇鐢ㄧ幇鍦ㄥ畬鎴愭椂銆 姣斿: He has played theguita for two years.浠栧凡...
绛旓細3. 鐜板湪瀹屾垚鏃舵佺粡甯镐笌琛ㄧず棰戝害鐨勬椂闂寸姸璇繛鐢锛屽often,sometimes,ever,never,twice,on several occasion绛:Have you ever been to Beijing?浣犱互鍓嶅幓杩囧寳浜悧?4. 鐜板湪瀹屾垚鏃惰繕寰寰鍙互鍚屽寘鎷幇鍦ㄦ椂闂村湪鍐呯殑鏃堕棿鐘惰杩炵敤 濡俷ow,up to these few days/weeks/months/years,this morning/week/month/year...
绛旓細鈶his/It/That is the first/second/third...time that...琛ㄧず鈥滆繖/閭ｆ槸(鏌愪汉)绗嚑娆″仛鏌愪簨鈥濓紝that浠庡彞涓鐢鐜板湪瀹屾垚鏃銆侷t is the first time that I have visited the city.杩欐槸鎴戠涓娆℃父瑙堣繖搴у煄甯傘傗憿This is锛媡he锛嬪舰瀹硅瘝鏈楂樼骇锛嬪悕璇嶏紜that...缁撴瀯锛宼hat浠庡彞瑕佺敤鐜板湪瀹屾垚鏃躲俆hi...
绛旓細1銆佽繃鍘诲彂鐢熺殑鍔ㄤ綔瀵圭幇鍦ㄩ犳垚鐨勫奖鍝嶃2銆佽繃鍘荤殑鍔ㄤ綔鎴栫姸鎬佹寔缁埌鐜板湪骞朵笖宸茬粡瀹屾垚鎴栧彲鑳芥寔缁笅鍘汇3銆鐜板湪瀹屾垚鏃琛ㄧず灏嗘潵銆4銆佺幇鍦ㄥ畬鎴愭椂琛ㄧず閲嶅銆傚彞鍨嬫瀯鎴 瀹屾垚鏃舵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/has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...
绛旓細鐜板湪瀹屾垚鏃琛ㄧず杩囧幓鍙戠敓鐨勫姩浣滐紝瀵圭幇鍦ㄩ犳垚鐨勫奖鍝嶆垨缁撴灉銆傚父涓 already,yet,ever,never,before,just 锛宖or,since绛夎繛鐢
绛旓細鑻辫涓湪杩囧幓鍙戠敓鐨勫姩浣滃鐜板湪閫犳垚鐨勫奖鍝嶆垨缁撴灉鐨勬儏鍐典笅鐢鐜板湪瀹屾垚鏃銆傚姩浣滃彂鐢熶簬杩囧幓锛屾槸宸茬粡瀹屾垚鐨勶紝浣嗗仛杩囩殑杩欎釜浜嬪効锛岃窡鐜板湪鐨勬儏鍐垫湁鍏崇郴銆備妇涓緥瀛愭潵璇达細鍦ㄥ悆杩囨櫄楗箣鍚庡幓鏈嬪弸瀹朵覆闂紝鏈嬪弸鍒氬ソ鍦ㄥ悆楗紝灏遍個璇蜂綘涓璧峰悆锛屼綘璇达細I have just had dinner銆傝繖灏辨槸鐜板湪瀹屾垚鏃躲傜幇鍦ㄥ畬鎴愭椂鐨勫叾浠栫畝浠嬨...
绛旓細浠涔堟椂鍊欑敤鐜板湪瀹屾垚鏃锛熺浉鍏冲唴瀹瑰涓嬶細1. 寮鸿皟鍔ㄤ綔鍙戠敓鍦ㄨ繃鍘伙紝浣嗗鐜板湪浠嶇劧鏈夊奖鍝嶏紙Action Happened in the Past, Relevant to the Present锛夛細鐜板湪瀹屾垚鏃跺父鐢ㄦ潵琛ㄧず杩囧幓鐨勫姩浣滃鐜板湪鐨勬儏鍐垫垨鐘跺喌浜х敓褰卞搷銆備緥濡傦細I have lived in this city for ten years.锛堟垜鍦ㄨ繖涓煄甯備綇浜嗗崄骞淬傦級杩欏彞璇濊〃鏄庯紝...
