if引导的表示将来情况的虚拟条件句，什么情况下用was to 和were to 虚拟条件句中I必须用were，有用was的情况吗
if\u5f15\u5bfc\u7684\u865a\u62df\u6761\u4ef6\u53e5\u4e09\u79cd\u53e5\u578b 1 \u4e0e\u73b0\u5728 2 \u4e0e\u5c06\u6765 3 \u4e0e\u8fc7\u53bb\u6ca1\u6709\u89c1\u8fc7\u54df\u3002
1.\u8868\u793a\u4e0e\u73b0\u5728\u4e8b\u5b9e\u76f8\u53cd\u7684\u5047\u8bbe\u65f6\uff0c\u6761\u4ef6\u72b6\u8bed\u4ece\u53e5\u4e2d\u7684\u8c13\u8bed\u52a8\u8bcd\u7528\u201c\u8fc7\u53bb\u5f0f(be\u7684\u8fc7\u53bb\u5f0f\u7528were)\u201d\u3002\u800c\u4e3b\u53e5\u4e2d\u7684\u8c13\u8bed\u52a8\u8bcd\u7528\u201cwould(should, could, might)+\u52a8\u8bcd\u539f\u5f62\u201d\u3002\u5982\uff1aIf John had enough money, he could go out of the U.S.\u5982\u679c\u7ea6\u7ff0\u6709\u8db3\u591f\u7684\u94b1\uff0c\u4ed6\u5c31\u4f1a\u79bb\u5f00\u7f8e\u56fd\u3002
If I were in your position, I would accept their offer.\u5982\u679c\u6211\u5904\u4e8e\u4f60\u7684\u4f4d\u7f6e\uff0c\u6211\u5c31\u63a5\u53d7\u4ed6\u4eec\u7684\u63d0\u8bae\u3002
2.\u8868\u793a\u4e0e\u8fc7\u53bb\u7684\u4e8b\u5b9e\u76f8\u53cd\u7684\u5047\u8bbe\u65f6\uff0c\u6761\u4ef6\u72b6\u8bed\u4ece\u53e5\u7684\u8c13\u8bed\u52a8\u8bcd\u7528\u201chad+\u8fc7\u53bb\u5206\u8bcd\u201d\uff0c\u4e3b\u53e5\u4e2d\u7684\u8c13\u8bed\u52a8\u8bcd\u7528\u201cwould(should, could, might)+have+\u8fc7\u53bb\u5206\u8bcd\u201d\u3002\u5982\uff1aIf you had taken my advice, you wouldn't have failed in the examination.\u5047\u82e5\u4f60\u542c\u4ece\u6211\u7684\u5efa\u8bae,\u4f60\u5c31\u4e0d\u4f1a\u8003\u8bd5\u4e0d\u53ca\u683c\u4e86.
If I had known your address, I would have written to you.\u5047\u5982\u6211\u77e5\u9053\u4f60\u7684\u5730\u5740\uff0c\u6211\u65e9\u5c31\u7ed9\u4f60\u5199\u4fe1\u4e86\u3002
3.\u8868\u793a\u4e0e\u5c06\u6765\u4e8b\u5b9e\u76f8\u53cd\u7684\u5047\u8bbe\u65f6\uff0c\u4e3b\u53e5\u4e2d\u7684\u8c13\u8bed\u52a8\u8bcd\u7528\u201cwould(should, could, might)+\u52a8\u8bcd\u539f\u5f62\u201d\uff0c\u6761\u4ef6\u4ece\u53e5\u4e2d\u7528\u201cwere to (should)+\u52a8\u8bcd\u539f\u5f62\u201d\uff0c\u5982\uff1aIf the sun were to rise in the west, I would follow you.\u5047\u5982\u592a\u9633\u4ece\u897f\u8fb9\u5347\u8d77\uff0c\u6211\u5c31\u542c\u4f60\u7684\u3002
If he should come tomorrow, we would be greatly surprised.\u8981\u662f\u4ed6\u660e\u5929\u6765\u4e86\uff0c\u6211\u4eec\u4f1a\u5927\u611f\u60ca\u8bb6\u3002
4.\u5f53\u6761\u4ef6\u72b6\u8bed\u4ece\u53e5\u8868\u793a\u7684\u884c\u4e3a\u548c\u4e3b\u53e5\u8868\u793a\u7684\u884c\u4e3a\u6240\u53d1\u751f\u7684\u65f6\u95f4\u4e0d\u4e00\u81f4\u65f6\uff0c\u52a8\u8bcd\u7684\u5f62\u5f0f\u8981\u4f9d\u636e\u5b83\u6240\u8868\u793a\u7684\u65f6\u95f4\u6765\u8c03\u6574\u3002\u5982\uff1aIf you had taken the medicine yesterday, you might be well now.\u5982\u679c\u4f60\u6628\u5929\u5403\u4e86\u836f, \u4f60\u7684\u75c5\u4eca\u5929\u4e5f\u8bb8\u5c31\u597d\u4e86\u3002
If he had taken my advice, he would be a scientist now.\u5982\u679c\u5f53\u65f6\u4ed6\u542c\u4e86\u6211\u7684\u529d\u544a, \u73b0\u5728\u4ed6\u5e94\u8be5\u662f\u4e2a\u79d1\u5b66\u5bb6\u4e86\u3002
5.\u4ee5\u4e0a\u53e5\u578b\u53ef\u4ee5\u8f6c\u6362\u6210\u4e0b\u5217\u5f62\u5f0f\uff1a
\u2460 \u7701\u7565if\u7528\u201cwere, had, should+\u4e3b\u53e5\u201d\u3002\u5982\uff1aWere I in school again, I would work harder.\u5047\u82e5\u6211\u518d\u4e0a\u5b66\u7684\u8bdd\uff0c\u6211\u4f1a\u66f4\u52a0\u52aa\u529b\u5b66\u4e60\u3002
Had you been here earlier, you would have seen him.\u8981\u662f\u4f60\u65e9\u70b9\u6765\u7684\u8bdd\uff0c\u4f60\u5c31\u4f1a\u89c1\u5230\u4ed6\u3002
\u4f46\u5728\u865a\u62df\u6761\u4ef6\u72b6\u8bed\u4ece\u53e5\u4e2d\uff0c\u7701\u7565\u8fde\u8bcd\u7684\u5012\u88c5\u5f62\u5f0f\u7684\u53e5\u9996\u4e0d\u80fd\u7528\u52a8\u8bcd\u7684\u7f29\u7565\u5f62\u5f0f\uff0c\u5982\u6211\u4eec\u53ef\u4ee5\u8bf4\uff1aWere it not for the expense, I would go to Italy.\u4f46\u4e0d\u80fd\u8bf4\uff1aWeren't it for the expense, I would go to Italy.
\u2461 \u7528\u4ecb\u8bcd\u77ed\u8bedwithout, but for\u4ee3\u66ff\u6761\u4ef6\u72b6\u8bed\u4ece\u53e5\u3002\u5982\uff1a\u3000Without air, there would be no living things. \u6ca1\u6709\u7a7a\u6c14\uff0c\u5c31\u6ca1\u6709\u751f\u547d\u3002
But for your help, I couldn't have made so much progress.\u8981\u4e0d\u662f\u4f60\u7684\u5e2e\u52a9\uff0c\u6211\u4e0d\u53ef\u80fd\u53d6\u5f97\u8fd9\u4e48\u5927\u7684\u8fdb\u6b65\u3002
此时从句可以用If+主语+was/were to do,
主句用主语+would/could/should+have done.
例子：If I were to come tomorrow,I would have prepared for the ticket ahead of time.
翻译：如果我明天将要来的话，那么我就会提前准备好车票的。
if I were you
if he\she was
不用was
if引导的时间状语从句：
1、如果主句是一般现在时，从句时态不限；
2、如果主句是一般过去时，从句和主句时态保持一致
3、如果主句是将来时，从句用现在时
绛旓細瀵瑰皢鏉ヨ繘琛屽亣璁句富瑕佹湁涓夌鎯呭喌锛1,if鏉′欢浠庡彞鏄皳璇敤鍔ㄨ瘝杩囧幓寮,鍒欏悗闈㈢殑涓诲彞鏄儏鎬佸姩璇嶅姞鍔ㄨ瘝鍘熷舰 渚嬶細If I came tomorrow ,we would have the meeting.2,if鏉′欢浠庡彞鏄痺ere to褰㈠紡,鍒欏悗闈㈢殑涓诲彞涔熸槸鎯呮佸姩璇嶅姞鍔ㄨ瘝鍘熷舰 渚嬶細If it were to rain tomorrow ,the meting would be put off.3,if鏉′欢...
绛旓細1.(琛ㄧず鏉′欢)濡傛灉 ,涓诲彞鐢ㄥ皢鏉ユ椂,if浠庡彞鐢ㄧ幇鍦ㄦ椂琛ㄧず灏嗘潵 He will come if you invite him.濡傛灉浣犺浠,浠栦細鏉ョ殑.2.(琛ㄧず铏氭嫙)鍋囧,瑕佹槸 1锛夋椂鎬侊細鍙互琛ㄧず杩囧幓,鐜板湪鍜屽皢鏉ョ殑鎯呭喌.瀹冪殑鍩烘湰鐗圭偣鏄椂鎬侀鍚.a.鍚岀幇鍦ㄤ簨瀹炵浉鍙嶇殑鍋囪.鍙ュ瀷 锛氭潯浠朵粠鍙 涓诲彞 涓鑸繃鍘绘椂 should( would) +鍔ㄨ瘝鍘熷舰 I...
绛旓細If寮曞鐨勫皢鏉鏃铏氭嫙璇皵琛ㄧず鈥滃鏋滃皢鍙戠敓浠涔堝姩浣滐紝閭ｄ箞灏...鈥濇鏃朵粠鍙ュ彲浠ョ敤If+涓昏+was/were to do,涓诲彞鐢ㄤ富璇+would/could/should+have done.渚嬪瓙锛欼f I were to come tomorrow,I would have prepared for the ticket ahead of time.缈昏瘧锛氬鏋滄垜鏄庡ぉ灏嗚鏉ョ殑璇濓紝閭ｄ箞鎴戝氨浼氭彁鍓嶅噯澶囧ソ杞︾エ鐨勩
绛旓細He said if rain was stop.鐢眎f寮曞鐨勬潯浠剁姸璇粠鍙ワ紝鏃舵佸簲璇ユ槸涓诲皢浠庣幇锛屽氨鏄涓诲彞鐢ㄤ竴鑸皢鏉ユ椂锛岃屼粠鍙ョ敤涓鑸幇鍦ㄦ椂琛ㄧず灏嗘潵銆備緥濡 If it doesn't rain tomorrow, I will visit my former school.杩欓噷浠庡彞灏辩敤涓鑸幇鍦ㄦ椂銆傚綋鐒秈f寮曞鐨勪粠鍙ヤ篃鍙互鐢ㄨ櫄鎷熻姘 渚嬪If I got up early in the mor...
绛旓細if铏氭嫙璇皵鐨勪笁绉嶅舰寮忥細鈶犲鐜板湪鎯呭喌鐨勮櫄鎷熴佲憽瀵硅繃鍘绘儏鍐电殑铏氭嫙銆佲憿瀵瑰皢鏉ユ儏鍐电殑铏氭嫙銆1.瀵瑰皢鏉ユ儏鍐电殑铏氭嫙 涓诲彞锛氫富璇紜would/should/might/could锛嬪姩璇嶅師褰 浠庡彞锛歴hould锛嬪姩璇嶅師褰/were to锛嬪姩璇嶅師褰2.瀵圭幇鍦ㄦ儏鍐电殑铏氭嫙 涓诲彞锛氫富璇紜would/should/might/could锛嬪姩璇嶅師褰 浠庡彞锛氬姩璇嶈繃鍘诲紡 3.瀵硅繃鍘...
绛旓細If寮曞鐨鏉′欢鐘惰浠庡彞涓殑铏氭嫙璇皵锛1銆琛ㄧず瀵硅繃鍘鎯呭喌鐨勮櫄鎷锛氫粠鍙ワ細had done 涓诲彞锛歸ould/could/might/should have done If I had read the book,I would have told you about it.濡傛灉鎴戣浜嗚繖鏈功锛屾垜灏变細鍛婅瘔浣犱簡銆2銆佽〃绀哄鐜板湪鎯呭喌鐨勮櫄鎷燂細浠庡彞锛歸ould/could/might/should do 涓诲彞锛氬姩璇...
绛旓細浠庡彞濡備负铏氭嫙鏉′欢浠庡彞,璋撹鍔ㄨ瘝瑕佺敤铏氭嫙璇皵,琛ㄧず鍙兘鎬т笉澶ф垨涓庤繃鍘讳簨瀹炵浉鍙,浣溾滆鏄,鍋囧鈥濊В銆傚彲鎸囪繃鍘荤殑鎯呭喌,涔熷彲鎸囩幇鍦ㄥ拰灏嗘潵鐨刞鎯呭喌銆傛寚灏嗘潵鎯呭喌鏃跺彲鐢╳ere to鎴杝hould銆傚湪鐜颁唬鍙ｈ涓,涓銆佷笁浜虹О鍚庡父鐢╳as浠ｆ浛were銆if寮曞鐨勮櫄鎷鏉′欢鍙ヤ腑,鍔╁姩璇峸ere,should,had鍙互绉昏嚦涓昏鍓,姝ゆ椂if鍙渷鐣ャ
绛旓細瀵硅繃鍘荤殑铏氭嫙锛氫粠鍙 if + had done锛堣繃鍘诲畬鎴愶級 涓诲彞 would/could/should/might + have done锛堢幇鍦ㄥ畬鎴愶級瀵圭幇鍦ㄧ殑铏氭嫙锛氫粠鍙 if + did锛堣繃鍘诲紡锛 涓诲彞 would/could/should/might + do锛堝姩璇嶅師鍨嬶級瀵灏嗘潵鐨勮櫄鎷锛氫粠鍙1) if + should + do锛堝姩璇嶅師鍨嬶級; 2) if + were to +do锛堝姩璇...
绛旓細if sb do sth.he said if rain was stop.鐢if寮曞鐨鏉′欢鐘惰浠庡彞锛屾椂鎬佸簲璇ユ槸涓诲皢浠庣幇锛屽氨鏄涓诲彞鐢ㄤ竴鑸皢鏉ユ椂锛岃屼粠鍙ョ敤涓鑸幇鍦ㄦ椂琛ㄧず灏嗘潵銆備緥濡 if it doesn't rain tomorrow,i will visit my former school.杩欓噷浠庡彞灏辩敤涓鑸幇鍦ㄦ椂銆傚綋鐒秈f寮曞鐨勪粠鍙ヤ篃鍙互鐢铏氭嫙璇皵 渚嬪if i got up ear...
