when的用法(引导什么句子,用于开头还是句中) when引导的从句的用法
When\u7684\u7528\u6cd5\uff0c\u53e5\u9996\u53e5\u4e2d\uff1f\u5982\u679c when \u4e0e\u8fdb\u884c\u65f6\u6001\u8fde\u7528\uff0c\u610f\u601d\u662f \u201c\u5c31\u5728\u8fd9\u4e2a\u65f6\u5019\u7a81\u7136\u53d1\u751f\u4e86\u67d0\u79cd\u60c5\u51b5\u201d\uff0c\u6240\u4ee5 Jasmine was holidaying with her family in a wildlife park (when)she was bitten on the leg by a lion \u610f\u601d\u662f \u201c\u8309\u8389\u548c\u5bb6\u4eba\u5728\u91ce\u751f\u52a8\u7269\u56ed\u5ea6\u5047\u65f6\uff08\u6ca1\u9632\u4f4f\uff09\u88ab\u72ee\u5b50\u54ac\u4f24\u4e86\u817f\u201d\uff0c\u8fd9\u79cd\u60c5\u51b5\u7684 when \u5c5e\u4e8e\u5e76\u5217\u8fde\u8bcd\uff0c\u4e0d\u80fd\u653e\u5728\u53e5\u9996\u3002
when可以引导多种从句或特殊疑问句。根据不同的语境，它既可以放在句首也可以放在句中。
when
读音：英 [wen] 美 [wen]
释义：什么时候，何时，什么情况下。
语法：when的基本意思是“什么时候”。可用作疑问副词，用来询问某事曾发生或将要发生的时间，引导特殊疑问句，还可用作关系副词引导限制性定语从句、非限制性定语从句和表语从句，表示“是…时候的事”。
例句：
I asked him when he'd be back to pick me up
我问他什么时候回来接我。
扩展资料
when的近义词：while
while
读音：英 [waɪl] 美 [waɪl]
释义：当…的时候，与…同时。
语法：while还可引导让步状语从句，意思是“虽然，尽管”，含有对比意味。while表示对比关系时，意思是“而，然而”。
例句：
They walked on in silence for a while.
他们继续默默无语地走了一会儿。
一、when可以和延续性动词连用，也可以和短暂性动词连用；而while和as只能和延续性动词连用。
① Why do you want a new job when youve got such a good one already？（get为短暂性动词）你已经找到如此好的工作，为何还想再找新的？
②Sorry，I was out when you called me．（call为短暂性动词）对不起，你打电话时我刚好外出了。
③Strike while the iron is hot．（is为延续性动词，表示一种持续的状态）趁热打铁。
④ The students took notes as they listened．（listen为延续性动词）学生们边听课边做笔记。
二、when从句的谓语动词可以在主句谓语动作之前、之后或同时发生；while和as从句的谓语动作必须是和主句谓语动作同时发生。
1．从句动作在主句动作前发生，只用 when。
①When he had finished his homework，he took a short rest．（finished先发生）当他完成作业后，他休息了一会儿。
②When I got to the airport，the guests had left．（got to后发生）当我赶到飞机场时，客人们已经离开了。
2．从句动作和主句动作同时发生，且从句动作为延续性动词时，when，while，as都可使用。
①When ／While ／As we were dancing，a stranger came in．（dance为延续性动词）当我们跳舞时，一位陌生人走了进来。
②When ／While ／As she was making a phonecall，I was writing a letter．（make为延续性动词）当她在打电话时，我正在写信。
3．当主句、从句动作同时进行，从句动作的时间概念淡化，而主要表示主句动作发生的背景或条件时，只能用 as。这时，as常表示“随着……”；“一边……，一边……”之意。
① As the time went on，the weather got worse．（as表示“随着……”之意）
② The atmosphere gets thinner and thinner as the height increases．随着高度的增加，大气越来越稀薄。
③As years go by，China is getting stronger and richer．随着时间一年一年过去，中国变得越来越富强了。
④The little girls sang as they went．小姑娘们一边走，一边唱。
⑤The sad mother sat on the roadside，shouting as she was crying．伤心的妈妈坐在路边，边哭边叫。
4．在将来时从句中，常用when，且从句须用一般时代替将来时。
①You shall borrow the book when I have finished reading it．在我读完这本书后，你可以借阅。
②When the manager comes here for a visit next week，Ill talk with him about this．下周，经理来这参观时，我会和他谈谈此事。
三、when用于表示“一……就……”的句型中（指过去的事情）。
sb．had hardly（＝scarcely） done sth．when．．．＝Hardly ／ Scarcely had sb．done sth．when．．．
①I had hardly ／scarcely closed my eyes when someone knocked at the door．＝Hardly ／ Scarcely had I closed my eyes when someone knocked at the door．我刚一闭上眼，就有人在敲门了。
②I had hardly ／scarcely entered my room when the telephone rang．＝Hardly ／Scarcely had I entered my room when the telephone rang．我刚一走进房门，电话就响了。
when可以引导多种从句。根据不同的语境，它既可以放在句首也可以放在句中。
引导状语从句，还有定语从句，要看具体情况了，他既可以放在句首，也可以放在句子中间。
可以用于句首也可以用于句中,一般据实际情况而定
绛旓細when 鍙互寮曞寰堝浠庡彞锛 1.瀹捐浠庡彞锛氫緥濡 I don`t know when he left here.鎴戜笉鐭ラ亾浠栦笂闈㈡椂鍊欑寮鐨.姝ゆ椂when浣滆繛鎺ヨ瘝寮曞瀹捐浠庡彞. 2.瀹氳浠庡彞锛氫緥濡 He left his hometown in that year when his father died.浠栧湪浠栫埗浜叉鐨勯偅涓骞寸寮浜嗕粬鐨勫涔.姝ゆ椂when浣滆繛璇嶄慨楗皌hat year,寮曞瀹氳浠庡彞....
绛旓細when寮曞鐨勬椂闂寸姸璇粠鍙ュ彲浠ユ帴涓娈垫椂闂存垨鑰呬竴涓叿浣撶殑鏃堕棿鐐锛屼粠鍙ョ殑璋撹鍔ㄨ瘝鍙互鏄欢缁х殑鍔ㄨ瘝锛屼篃鍙互鏄灛鏃跺姩璇嶃倃hen琛ㄧず鈥滃綋鈥︽椂鈥濃滃湪鈥︽椂鈥濓紝鎴栧氨鍦ㄩ偅鏃躲傘1銆戝湪杩囧幓锛寃hen浠庡彞鍜屼富鍙ョ殑鍔ㄤ綔鍏堝悗鍙戠敓 瑙ｉ噴锛氳〃绀哄湪杩囧幓锛屼富鍙ュ拰浠庡彞鍖呭惈鐨勫姩浣滃厛鍚庡彂鐢熶簡锛屾垨鑰呬富鍙ユ垨浠庡彞鐨勫姩浣滃厛鍙戠敓銆傚彞瀛愮粨鏋勶細w...
绛旓細涓昏鏈5涓柟闈㈢殑鐭ヨ瘑鐐瑰強鐢ㄦ硶 1銆佷綔涓哄壇璇嶏紝寮曞鐗规畩鐤戦棶鍙锛屾剰涓衡滀粈涔堟椂鍊欙紱浣曟椂鈥濄 濡傦細When will they come back? 銆浠栦滑浠涔堟椂鍊欏洖鏉ワ紵I'd like to know when they will come. 鎴戞兂鐭ラ亾浠栦滑浠涔堟椂鍊欐潵銆( when 寮曞瀹捐浠庡彞)2銆佷綔涓轰粠灞炶繛璇嶏紝寮曞鐘惰浠庡彞锛岃〃绀烘椂闂达紝鎰忎负鈥滃綋鈥︹︽椂锛涘湪...
绛旓細when鍙互寮曞澶氱绫诲瀷鐨勪粠鍙ワ紝鍖呮嫭鏃堕棿鐘惰浠庡彞銆佸師鍥犵姸璇粠鍙ャ佹潯浠剁姸璇粠鍙ャ佽姝ョ姸璇粠鍙ャ佸璇粠鍙ャ佸畾璇粠鍙ャ佷富璇粠鍙ワ紝浠ュ強骞跺垪鍒嗗彞绛銆備互涓嬫槸璇︾粏浠嬬粛锛1銆佹椂闂寸姸璇粠鍙ャ傝〃绀哄彂鐢熸煇浜嬬殑鏃堕棿锛屽鈥淗ewillgotothedoctor'swhenitissunny鈥濇剰涓衡滃綋澶╂櫞鏃讹紝浠栧氨浼氬幓鐪嬪尰鐢熲濄2銆佸璇粠鍙ャ傞氬父璺熷湪鍔ㄨ瘝...
绛旓細5.寮曞鏃堕棿鐘惰浠庡彞锛屽彲璇戜负鈥滃綋鈥︽椂鍊欌濓紝鏈枃寮濮嬭鏂囧彞瀛愪腑鐨剋hen鍗充负姝ょ敤娉曘俉hen he got up锛宧e felt dizzy.6.when寮曞浠庡彞鐨勭壒渚嬶細1)琛ㄧず绐佺劧鍙戠敓鏌愪簨鎴栫揣鎺ョ潃鍙戠敓鏌愪簨锛屽父鍙瘧涓衡溾﹁繕娌/鍒氬垰鈥﹀氨鈥︹濓紝鈥溾︽鍦ㄢ﹀拷鐒垛︹濇垨鈥滄瑕佲﹁繖鏃垛︹濓紝涓昏鐢ㄤ簬鈥渉ad done鈥hen鈥︼紝be doing鈥...
绛旓細when涓昏鐢ㄤ簬鏃堕棿鐘惰浠庡彞锛岃〃绀衡滃綋鈥︹︽椂鍊欌濄備緥濡傦紝鈥淲hen I was young, I used to play tennis.鈥濓紙褰撴垜骞磋交鏃讹紝鎴戝父甯告墦缃戠悆銆傦級鍦ㄨ繖涓彞瀛愪腑锛寃hen寮曞浜嗕竴涓椂闂寸姸璇粠鍙ワ紝鎻忚堪浜嗏滄墦缃戠悆鈥濊繖涓鍔ㄤ綔鍙戠敓鐨勬椂闂淬傚彟澶栵紝when涔熷彲浠ョ敤浜瀹捐浠庡彞鍜屽畾璇粠鍙ヤ腑銆傚湪瀹捐浠庡彞涓紝when浣滀负杩炴帴璇嶏紝寮曞...
绛旓細when 璇婚煶锛氳嫳 [wen] 缇 [wen]閲婁箟锛氫粈涔堟椂鍊欙紝浣曟椂锛屼粈涔堟儏鍐典笅銆傝娉曪細when鐨勫熀鏈剰鎬濇槸鈥滀粈涔堟椂鍊欌濄傚彲鐢ㄤ綔鐤戦棶鍓瘝锛岀敤鏉ヨ闂煇浜嬫浘鍙戠敓鎴栧皢瑕佸彂鐢熺殑鏃堕棿锛寮曞鐗规畩鐤戦棶鍙锛岃繕鍙敤浣滃叧绯诲壇璇嶅紩瀵奸檺鍒舵у畾璇浠庡彞銆侀潪闄愬埗鎬у畾璇粠鍙ュ拰琛ㄨ浠庡彞锛岃〃绀衡滄槸鈥︽椂鍊欑殑浜嬧濄備緥鍙ワ細I asked him when he...
绛旓細"when"鍜"while"閮芥槸鑻辫涓殑浠庡睘杩炶瘝锛屽湪鍙ュ瓙涓繛鎺ヤ竴涓浠庡彞鍜屼竴涓富鍙ワ紝璧峰埌鏃堕棿鍏崇郴鐨勪綔鐢紝浣嗗湪浣跨敤鏃舵湁涓浜涗笉鍚岋細"when"琛ㄧず涓や釜浜嬩欢鍙戠敓鐨勬椂闂存槸鐩镐簰鍏宠仈鐨勶紝涓涓簨浠跺彂鐢熷悗鍙︿竴涓簨浠剁珛鍗冲彂鐢熴備緥濡傦細When I arrived at the airport, the plane had already taken off. 锛堝綋鎴戝埌杈炬満鍦烘椂锛...
绛旓細缂╁悎杩炴帴鍓瘝锛寮曞鍚嶈瘝鎬т粠鍙銆俆his was when I was born.Do you know when the class will begin?I don't know when they will achieve the goal.姝ゅ锛岀枒闂壇璇峸hen鍚庨潰鍔犲姩璇嶄笉瀹氬紡to do锛堟敞鎰忥紝when鍚庨潰娌℃湁鎺ュ姩鍚嶈瘝doing鐨勭敤娉曪級锛屽彲浠ヤ綔鍙ュ瓙鐨勪富璇紝琛ㄨ銆佸璇瓑锛屽锛欼 don't know when ...
绛旓細1銆佸綋鏌愪汉姝ｅ湪鍋氭煇浜嬶紝杩欐椂鍙戠敓浜浠涔锛歴b. be doing sth when...渚嬶細I was doing eighty when I overtook you.2銆佸綋鏌愪汉鍒氬仛瀹屾煇浜嬶紝杩欐椂鍙戠敓浜嗕粈涔堬細sb. had just done sth when...I had just finished my report when someone knocked at the door.3銆佸綋鏌愪汉姝ｈ鍋氭煇浜嬶紝杩欐椂鍙戠敓浜嗕粈涔堬細...
