can't和couldn't can't与couldn't的区别
couldn't\u548ccan't\u7684\u533a\u522b\uff1f\u3000\u3000\u7b2c\u4e00\u4e2a\u533a\u522b \u65f6\u6001\u5728\u4e00\u822c\u8bed\u53e5\u91cc\u9762couldn't\u8868\u8fc7\u53bb\u65f6can't\u8868\u73b0\u5728\u65f6\uff0ccan \u662f\u73b0\u5728\u662f.could \u662f\u8fc7\u53bb\u5f0f
\u3000\u3000\u7b2c\u4e8c\u4e2a\u533a\u522b could \u6bd4can \u591a\u4e00\u4e2a\u610f\u601d\u5c31\u662f\u60c5\u6001\u52a8\u8bcd ,\u5927\u6982\u610f\u601d\u5c31\u662f couldnot \u6709\u4e2a \u59d4\u5a49,\u8fd9\u7c7b\u7684\u610f\u601d cannot \u6ca1\u6709\uff0c\u5728\u8bf7\u6c42\u8bed\u53e5\u91cc\u9762couldn't\u6bd4can't\u8f83\u59d4\u5a49
\u3000\u3000can't/couldn't\u8868\u793a\u63a8\u6d4b\u65f6,\u610f\u601d\u662f\u201c\u4e0d\u53ef\u80fd...\u201d,\u8bed\u6c14\u975e\u5e38\u575a\u51b3\u7684\u5426\u5b9a\u63a8\u6d4b.
\u3000\u3000\u6839\u636e\u52a8\u4f5c\u53d1\u751f\u7684\u65f6\u95f4,\u4e00\u822c\u5206\u4e3a\u4ee5\u4e0b\u4e09\u79cd\u60c5\u51b5\uff1a
\u3000\u30001\uff09\u8fdb\u884c\u5f0f\uff08\u5bf9\u6b63\u5728\u53d1\u751f\u7684\u4e8b\u60c5\u7684\u5426\u5b9a\u63a8\u6d4b\uff09\uff1acan't be doing sth
\u3000\u3000\u5982\uff1aIt's already ten o'clock.My father can't be sleeping now.
\u3000\u30002\uff09\u5b8c\u6210\u5f0f\uff08\u5bf9\u8fc7\u53bb\u7684\u52a8\u4f5c\u7684\u5426\u5b9a\u63a8\u6d4b\uff09\uff1acan't/couldn't have done sth
\u3000\u3000\u5982\uff1aHe is at schoool,so he can't/couldn't have stayed up last night.
\u3000\u30003\uff09\u4e00\u822c\u5f0f\uff08\u5bf9\u73b0\u5728/\u5c06\u6765\u60c5\u51b5\u7684\u5426\u5b9a\u63a8\u6d4b\uff09\uff1acan't do sth
\u3000\u3000\u5982\uff1aYour answer can't be true.
\u3000\u3000can/could\u8868\u793a\u63a8\u6d4b\u65f6\u4e00\u822c\u53ea\u7528\u4e8e\u5426\u5b9a\u53e5/\u7591\u95ee\u53e5,\u4f46\u662f\u4e5f\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5,\u53ea\u662f\u6bd4\u8f83\u5c11\u89c1.
\u3000\u3000\u5176\u4e2dcould\u4e0d\u8868\u793a\u8fc7\u53bb\u5f0f,\u800c\u8868\u793a\u53ef\u80fd\u6027\u8f83\u5c0f.
\u3000\u3000\u5982\uff1aI think the work can be completed ahead of time.\u6211\u8ba4\u4e3a\u8fd9\u9879\u5de5\u4f5c\u80fd\u63d0\u524d\u5b8c\u6210.
can't/couldn't\u8868\u793a\u63a8\u6d4b\u65f6\uff0c\u610f\u601d\u662f\u201c\u4e0d\u53ef\u80fd...\u201d\uff0c\u8bed\u6c14\u975e\u5e38\u575a\u51b3\u7684\u5426\u5b9a\u63a8\u6d4b\u3002
\u6839\u636e\u52a8\u4f5c\u53d1\u751f\u7684\u65f6\u95f4\uff0c\u4e00\u822c\u5206\u4e3a\u4ee5\u4e0b\u4e09\u79cd\u60c5\u51b5\uff1a
1\uff09\u8fdb\u884c\u5f0f\uff08\u5bf9\u6b63\u5728\u53d1\u751f\u7684\u4e8b\u60c5\u7684\u5426\u5b9a\u63a8\u6d4b\uff09\uff1acan't be doing sth
\u5982\uff1aIt's already ten o'clock. My father can't be sleeping now.
2\uff09\u5b8c\u6210\u5f0f\uff08\u5bf9\u8fc7\u53bb\u7684\u52a8\u4f5c\u7684\u5426\u5b9a\u63a8\u6d4b\uff09\uff1acan't/couldn't have done sth
\u5982\uff1aHe is at schoool, so he can't/couldn't have stayed up last night.
3\uff09\u4e00\u822c\u5f0f\uff08\u5bf9\u73b0\u5728/\u5c06\u6765\u60c5\u51b5\u7684\u5426\u5b9a\u63a8\u6d4b\uff09\uff1acan't do sth
\u5982\uff1aYour answer can't be true.
can/could\u8868\u793a\u63a8\u6d4b\u65f6\u4e00\u822c\u53ea\u7528\u4e8e\u5426\u5b9a\u53e5/\u7591\u95ee\u53e5\uff0c\u4f46\u662f\u4e5f\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5\uff0c\u53ea\u662f\u6bd4\u8f83\u5c11\u89c1\u3002
\u5176\u4e2dcould\u4e0d\u8868\u793a\u8fc7\u53bb\u5f0f\uff0c\u800c\u8868\u793a\u53ef\u80fd\u6027\u8f83\u5c0f\u3002
\u5982\uff1aI think the work can be completed ahead of time. \u6211\u8ba4\u4e3a\u8fd9\u9879\u5de5\u4f5c\u80fd\u63d0\u524d\u5b8c\u6210\u3002
第一个区别 could 比can 多一个意思就是情态动词 ，大概意思就是 couldnot 有个 委婉，这类的意思 cannot 没有
can't是不能could't是不愿
can't比could't语气要强
通常前者现在时，后者过去时，口语中前者语气没后者委婉，后者表示礼貌用法
首先是时态：前者表一般现在，后者表一般过去。其次是语气：前者直接，无商量余地，后者较委婉。且后者是前者的虚拟语气表达法。
绛旓細鈥can鈥濈殑鍥涚鐢ㄦ硶:1.琛ㄧず"鑳姐佷細",鎸囪剳鍔涙垨浣撳姏鏂归潰鐨"鑳藉姏"銆2.琛ㄧず"鍙兘",甯哥敤浜庡惁瀹氬彞鎴栫枒闂彞涓,鎸囨煇绉嶅彲鑳芥с3.琛ㄧず"鍙互",甯哥敤浜庡彛璇腑,鎸囪鍙垨璇锋眰鍋氭煇浜嬨4.琛ㄧず鈥滄鐤戔,鍦ㄨ〃杈炬鎰忔濇椂,鍙兘鐢ㄤ簬涓鑸枒闂彞涓,甯︽湁鎰熸儏鑹插僵銆 鎵╁睍璧勬枡 鈥渃an鈥濈殑鍥涚鐢ㄦ硶锛氳〃绀"鑳姐佷細"锛...
绛旓細鎯呮佸姩璇can鐨勭敤娉曚妇渚嬶細1銆乧an琛ㄧず鑳藉姏 姝ゆ椂锛宑an鎰忎负鈥滆兘锛涗細鈥濄傚锛欼 can play badminton, but I can't play volleyball.鎴戜細鎵撶窘姣涚悆锛屼絾鏄垜涓嶄細鎵撴帓鐞冦2銆乧an琛ㄧず璇锋眰 姝ゆ椂锛宑an鎰忎负鈥滃彲浠ワ紝鍙兘鈥濄傚锛Can you help me with the box?浣犺兘甯垜鎶繖绠卞瓙鍚楋紵3銆乧an琛ㄧず鍏佽 姝ゆ椂锛宑an...
绛旓細鍏充簬can鐨勬剰鎬濈浉鍏冲涓嬶細can锛岃嫳璇崟璇嶏紝鎯呮佸姩璇嶃佸悕璇嶃佸姩璇嶏紝浣滄儏鎬佸姩璇嶆椂鎰忎负鈥.鑳斤紱鑳藉[1]锛涙湁鏈轰細锛涘彲鑳斤紱琚厑璁糕濓紝浣滃悕璇嶆椂鎰忎负鈥滃渾鏌卞舰閲戝睘瀹瑰櫒锛涚綈澶达紱涓鍚墍瑁呯殑锛堥鐗╂垨楗枡锛夐噺锛涢厭鐡讹紱鍠风綈锛涚洃鐙憋紱鍗敓闂达紱鑷閮紱椹遍愯埌锛涚牬鍧忚咃紱锛堢編锛夊崱鎭╋紙浜哄悕锛夆濓紱浣滃姩璇嶆椂鎰忎负鈥滄妸锛堥鐗╋級瑁呯綈...
绛旓細涓銆佽瘝涔夊箍娉涙т笉涓鏍 1銆can 鑻 [kæn] 缇 [kæn]aux. 鑳斤紱鑳藉锛涙湁鏈轰細锛涘彲鑳斤紱琚厑璁 n. 鍦嗘煴褰㈤噾灞炲鍣紱缃愬ご锛涗竴鍚墍瑁呯殑锛堥鐗╂垨楗枡锛夐噺锛涢厭鐡讹紱v. 鎶婏紙椋熺墿锛夎缃愪繚瀛 2銆乨o 鑻 [duː , də , dəʊ] 缇 [duː , də ...
绛旓細can鏈夊洓绉嶇敤娉曪細涓銆1銆佽〃绀虹幇鍦ㄧ殑鑳藉姏锛堣〃绀轰細涓嶄細鍋氭煇浠朵簨鎯咃級渚嬪锛欼 can play basketball. 鎴戜細鎵撶鐞冦2銆乧an鐨勫惁瀹氬舰寮忥細cannot/can't 渚嬪锛欻e can't ride a bike. 浠栦笉浼氶獞鑷杞︺3銆佽〃绀鸿繃鍘荤殑鑳藉姏锛岀敤could銆傝偗瀹氾細could ;鍚﹀畾锛歝ouldn't 渚嬪锛欻e could dance when he was 3 ...
绛旓細CAN锛圕ontroller Area Network锛夋帶鍒跺櫒灞鍩熺綉缁滄槸涓绉嶅湪涓嶅悓璁惧涔嬮棿杩涜閫氫俊鐨勬荤嚎鏍囧噯銆傚畠鍏佽寰帶鍒跺櫒鍜屽叾浠栬澶囧彲浠ュ湪浣庨熷拰楂橀熼氳涔嬮棿鍒囨崲锛屽悓鏃跺彲浠ヨ繘琛屽疄鏃舵暟鎹紶杈撱侰AN鏄幇浠ｆ苯杞﹂鍩熸渶甯哥敤鐨勬荤嚎鍗忚锛屼篃鍦ㄥ叾浠栭鍩熶腑骞挎硾搴旂敤銆傚湪CAN鎬荤嚎涓婏紝澶氫釜璁惧鍙互杩炴帴鍒板悓涓缁勭嚎璺傛瘡涓澶囬兘鏈夊敮涓鐨勮瘑鍒...
绛旓細can鐨勪笁绉嶇敤娉曟槸锛1銆佹儏鎬佸姩璇嶏紝鑳斤紝鑳藉锛屽彲浠ワ紝鍙兘銆2銆佸悕璇嶏紝缃愶紱缃愬ご銆3銆乧an-could锛堣繃鍘诲紡锛夈俢an鐢ㄤ綔鎯呮佸姩璇嶇殑鍩烘湰鎰忔濇槸鈥滆兘锛岃兘澶熲濃滃彲浠モ濃滃彲鑳斤紝浼氣濓紝鍙〃绀轰綋鍔涖佹櫤鍔涜兘澶熷畬鎴愪竴浠朵簨鎯呮垨鐜璧嬩簣鐨勮兘鍔涳紱涔熷彲琛ㄧず鐢变簬鐜鎴栧叾浠栧洜绱犺屼骇鐢熺殑鍙兘鎬э紝鐢ㄤ簬鐤戦棶鍙ユ垨鍚﹀畾鍙ヤ腑锛涜繕鍙〃绀...
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绛旓細鑻辫涓嶄粎鍑虹幇鍦ㄨ鍫傞噷,瀹冨凡缁忚瀺鍏ュ埌浜嗘暣涓ぞ浼氫腑,鎴愪负浜虹被鐢熸椿涓笉鍙己灏戠殑涓閮ㄥ垎,can鏄垜浠湪瀛︿範鑻辫缁忓父纰板埌鐨勶紝瀹冪殑鐢ㄦ硶鏈夊緢澶氥傛帴涓嬫潵鎴戝湪杩欓噷缁欏ぇ瀹跺甫鏉an鐨勭敤娉曪紝鎴戜滑涓璧锋潵鐪嬬湅鍚!can鐨勭敤娉 涓銆佽〃鑳藉姏 1. can琛ㄨ兘鍔涙椂鎰忓懗鐫鍑綋鍔涙垨鑴戝姏鎴栨妧鏈瓑鍙互鏃犵敋闃诲姏鍦板幓鍋氭煇浜嬨侷 can climb this ...
