when与while的时态各有什么特点 when和 while后面分别跟什么时态
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1\u3001\u7531when\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\uff0c\u4e3b\u53e5\u7528\u8fc7\u53bb\u8fdb\u884c\u65f6\uff0c\u4ece\u53e5\u5e94\u7528\u4e00\u822c\u8fc7\u53bb\u65f6\uff1b\u5982\u679c\u4ece\u53e5\u548c\u4e3b\u53e5\u7684\u52a8\u4f5c\u540c\u65f6\u53d1\u751f\uff0c\u4e24\u53e5\u90fd\u7528\u8fc7\u53bb\u8fdb\u884c\u65f6\u7684\u65f6\u5019\uff0c\u591a\u7528while\u5f15\u5bfc\u3002
2\u3001\u7531when\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\uff0c\u4e3b\u53e5\u7528\u73b0\u5728\u8fdb\u884c\u65f6\uff0c\u4ece\u53e5\u5e94\u7528\u4e00\u822c\u73b0\u5728\u65f6\uff1b\u5982\u679c\u4ece\u53e5\u548c\u4e3b\u53e5\u7684\u52a8\u4f5c\u540c\u65f6\u53d1\u751f\uff0c\u4e24\u53e5\u90fd\u7528\u73b0\u5728\u8fdb\u884c\u65f6\u7684\u65f6\u5019\uff0c\u591a\u7528while\u5f15\u5bfc\u3002
when\u548cwhile\u7684\u533a\u522b\uff1a
\u8981\u770b\u4ece\u53e5\u548c\u4e3b\u53e5\u4e2d\u6240\u4f7f\u7528\u7684\u52a8\u8bcd\u662f\u77ed\u6682\u6027\u52a8\u4f5c\uff08\u77ac\u65f6\u52a8\u8bcd\uff09\u8fd8\u662f\u6301\u7eed\u6027\u52a8\u4f5c\u3002
1\u3001\u82e5\u4e3b\u53e5\u8868\u793a\u7684\u662f\u4e00\u4e2a\u77ed\u6682\u6027\u7684\u52a8\u4f5c\uff0c\u800c\u4ece\u53e5\u8868\u793a\u7684\u662f\u4e00\u4e2a\u6301\u7eed\u6027\u52a8\u4f5c\u65f6\uff0c\u4e24\u8005\u90fd\u53ef\u7528\u3002\u5982\uff1a
He fell asleep when [while] he was reading. \u4ed6\u770b\u4e66\u65f6\u7761\u7740\u4e86\u3002
I met him when [while] I was taking a walk in the park. \u6211\u5728\u516c\u56ed\u6563\u6b65\u65f6\u9047\u5230\u4e86\u4ed6\u3002
2\u3001\u82e5\u4e3b\u3001\u4ece\u53e5\u8868\u793a\u4e24\u4e2a\u540c\u65f6\u8fdb\u884c\u7684\u6301\u7eed\u6027\u52a8\u4f5c\uff0c\u4e14\u5f3a\u8c03\u4e3b\u53e5\u8868\u793a\u7684\u52a8\u4f5c\u5ef6\u7eed\u5230\u4ece\u53e5\u6240\u6307\u7684\u6574\u4e2a\u65f6\u95f4\uff0c\u901a\u5e38\u8981\u7528 while\u3002\u5982\uff1a
Don\u2019t talk while you\u2019re eating. \u5403\u996d\u65f6\u4e0d\u8981\u8bf4\u8bdd\u3002
I kept silent while he was writing. \u5728\u4ed6\u5199\u7684\u65f6\u5019\uff0c\u6211\u9ed8\u4e0d\u4f5c\u58f0\u3002
3\u3001\u82e5\u4ece\u53e5\u662f\u4e00\u4e2a\u77ed\u6682\u6027\u52a8\u4f5c\uff0c\u800c\u4e3b\u53e5\u662f\u4e00\u4e2a\u6301\u7eed\u6027\u52a8\u4f5c\uff0c\u53ef\u4ee5 when \u4f46\u4e0d\u7528 while\u3002\u5982\uff1a
When he came in, I was listening to the radio. \u4ed6\u8fdb\u6765\u65f6\uff0c\u6211\u5728\u542c\u6536\u97f3\u673a\u3002
It was raining hard when we arrived. \u6211\u4eec\u5230\u8fbe\u65f6\u6b63\u4e0b\u7740\u5927\u96e8\u3002
4\u3001\u82e5\u4e3b\u3001\u4ece\u53e5\u8868\u793a\u7684\u662f\u4e24\u4e2a\u540c\u65f6(\u6216\u51e0\u4e4e\u540c\u65f6)\u53d1\u751f\u7684\u77ed\u6682\u6027\u52a8\u4f5c\uff0c\u4e00\u822c\u8981\u7528 when\u3002\u5982\uff1a
I thought of it just when you opened your mouth. \u5c31\u5728\u4f60\u8981\u8bf4\u7684\u65f6\u5019\uff0c\u6211\u4e5f\u60f3\u5230\u4e86\u3002
when\u548cwhile\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\u4e0e\u8fd9\u4e00\u65f6\u6001\u8fde\u7528\u3002\u6240\u4ee5\u533a\u522bwhen\u548cwhile\u7684\u7528\u6cd5\u6210\u4e86\u8fd9\u4e00\u5355\u5143\u7684\u96be\u70b9\u3002 \uff08\u4e00\uff09\u3001when\uff0cwhile\u90fd\u6709\u201c\u5f53\u2026\u2026\u65f6\u5019\u201d\u7684\u610f\u601d\u3002when\u65e2\u53ef\u8868\u793a\u67d0\u4e00\u70b9\u65f6\u95f4\uff0c\u4e5f\u53ef\u4ee5\u8868\u793a\u67d0\u4e00\u6bb5\u65f6\u95f4 \u3002\u5728when\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\u4e2d\uff0c\u5176\u8c13\u8bed\u52a8\u8bcd\u53ef\u4ee5\u662f\u5ef6\u7eed\u6027\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u975e\u5ef6\u7eed\u6027\u7684\uff0c\u53ef\u4e0e\u4e3b\u53e5\u4e2d\u7684\u8c13\u8bed\u52a8\u8bcd\u540c\u65f6\u53d1\u751f\uff0c\u4e5f\u53ef\u5728\u5176\u540e\u53d1\u751f\u3002 \u4f8b\u5982\uff1a 1\u3001I was just reading a book when she came into my room. \u5979\u8d70\u8fdb\u6211\u623f\u95f4\u65f6\uff0c\u6211\u6b63\u5728\u770b\u4e66\u3002 2\u3001Were you writing when the teacher came in? \u8001\u5e08\u8fdb\u6765\u7684\u65f6\u5019\uff0c\u4f60\u5728\u5199\u4fe1\u5417\uff1f 3\u3001When he was a child he was always trying out new ideas. \u4ed6\u5c0f\u65f6\u5019\u5c31\u5e38\u5e38\u8bd5\u9a8c\u4e00\u4e9b\u65b0\u7684\u8bbe\u60f3\u3002 \uff08\u4e8c\uff09\u3001while\u53ea\u80fd\u8868\u793a\u67d0\u4e00\u6bb5\u65f6\u95f4\uff0c\u4e0d\u80fd\u8868\u793a\u67d0\u4e00\u70b9\u65f6\u95f4\u3002\u5728while\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\u4e2d\uff0c\u5176\u8c13\u8bed\u52a8\u8bcd\u53ea\u80fd\u662f\u5ef6\u7eed\u6027\u7684\uff0c\u800c\u4e14\u4e5f\u53ea\u80fd\u4e0e\u4e3b\u53e5\u4e2d\u7684\u8c13\u8bed\u52a8\u8bcd\u540c\u65f6\u53d1\u751f\u6216\u5b58\u5728\u3002 \u4f8b\u5982\uff1a 1\u3001While Jim was mending his bike, Lin Tao came to see him. \u6b63\u5f53\u5409\u59c6\u4fee\u81ea\u884c\u8f66\u65f6\uff0c\u6797\u6d9b\u6765\u770b\u4ed6\u3002 2\u3001You can\u2019t do your homework while you\u2019re watching TV. \u4f60\u4e0d\u80fd\u4e00\u8fb9\u770b\u7535\u89c6\u4e00\u8fb9\u505a\u5bb6\u5ead\u4f5c\u4e1a\u3002 \uff08\u4e09\uff09\u3001\u53e6\u5916\uff0cwhen\u548cwhile\u7684\u533a\u522b\u8fd8\u5728\u4e8e\uff1awhile\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\u591a\u7528\u8fdb\u884c\u65f6\u6001\uff0c\u800cwhen\u5f15\u5bfc\u7684\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\u591a\u7528\u4e00\u822c\u65f6\u6001\u3002 \u4f8b\u5982\uff1a 1\u3001While they were talking , the bell rang. \u6b63\u5728\u4ed6\u4eec\u8c08\u8bdd\u7684\u65f6\u5019\uff0c\u4e0a\u8bfe\u94c3\u54cd\u4e86\u3002 2\u3001I was doing my homework when my mother came back home yesterday evening. \u6628\u5929\u665a\u4e0a\u5988\u5988\u56de\u5bb6\u7684\u65f6\u5019\uff0c\u6211\u6b63\u5728\u505a\u5bb6\u5ead\u4f5c
①when是at or during the time that, 既指时间点，也可指一段时间，while是during the time that，只指一段时间，因此when引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。②when 说明从句的动作和主句的动作可以是同时，也可以是先后发生；while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。
③由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导，如：
a. When the teacher came in, we were talking.
当此句改变主从句的位置时，则为：
While we were talking, the teacher came in.
b. They were singing while we were dancing.
④when和while 还可作并列连词。when表示“在那时”；while表示“而，却”，表对照关系。如：
a. The children were running to move the bag of rice when they heard the sound of a motor bike.
孩子们正要跑过去搬开那袋米，这时他们听到了摩托车的声音。
b. He is strong while his brother is weak.
他长得很结实，而他弟弟却很瘦弱。
when 一般突出“突然的”意思
while 一般指同时发生的事情 例如：
I was playing PC while he was looking TV
一般用现在时
when的使用范围很广，各种情景均可使用。
while强调两个动作同时进行。
while还可表转折，这点恰恰是试题中常见的。
给个例子：I was doing my homework,while he was watching TV in the sofa.
while作并列连词，意思是“而，却”，表对比
eg. He likes pop music,while I am fond of folk music.
when 可作并列连词，意为“那时，这时”，等于“at that/this time”,常用于下列句式：
①sb. was doing sth. when....
②sb. was about to/going to do sth. when...
③sb. had just done sth. when...
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绛旓細When I was a child, I used to play with my friends every day.锛堝綋鎴戣繕鏄釜瀛╁瓙鐨勬椂鍊欙紝鎴戞瘡澶╅兘鍜屾湅鍙嬩滑鐜┿傦級2.while鍒欓氬父鐢ㄦ潵琛ㄧず涓涓寔缁殑鏃堕棿娈碉紝琛ㄧず鏌愪釜鍔ㄤ綔鎴栦簨浠跺湪杩欎釜鏃堕棿娈靛唴鍙戠敓銆倃hile鍚庨潰鐨勪粠鍙ラ氬父浣跨敤杩涜鏃舵锛岃〃绀烘鍦ㄨ繘琛岀殑鍔ㄤ綔鎴栦簨浠躲備緥濡傦細I watched TV while my mother...
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绛旓細reading鏄暱鍔ㄤ綔锛堝彲鎸佺画锛夛紝鍦ㄤ富鍙ワ紱came in鏄煭鍔ㄤ綔锛堜笉鍙寔缁級锛岀敤when寮曞锛屽湪浠庡彞銆while锛氱煭鍔ㄤ綔鍦ㄤ富鍙ワ紝鐢ㄤ竴鑸椂锛涢暱鍔ㄤ綔鍦ㄤ粠鍙ワ紝鐢╳hile寮曞锛岀敤杩涜鏃躲傚锛While Mary was reading, I came in.reading鏄暱鍔ㄤ綔锛岀敱while寮曞锛屽湪浠庡彞锛沜ame in鏄煭鍔ㄤ綔锛屽湪涓诲彞銆備絾鏄娉ㄦ剰锛屽鏋滀富浠庡彞鏃...
