while后面可以跟什么时态？
while后的句子时态可以是一般现在时，也可以是过去时态、进行时态等。
一、while作名词用，表示“一会儿”“一段时间”。
She likes to lie down for a while after lunch. 她喜欢午饭后躺一会儿。
二、While作连词
1、引导时间状语。
We must strike while the iron is hot.趁热打铁。
2、引起让步状语从句，意思是“虽然…但是….”、“尽管…但是…”(多放于句首)。
While he loves his students，he is very strict with them.虽然他爱他的学生，可是他对他们很严格。
3、引起条件状语，意思是“只要”。
While there is life there is hope.只要生命存在，就有希望。
词义辨析
when，while，as这些连词均可表示“当……时”引出时间从句。
when所引导的从句，其谓语动词既可是持续动词，也可是短暂动词；谓语动词动作发生的时间可以与主句谓语动词的动作是同时，或之前、之后。
while句中的谓语动词应为持续动词，不用短暂动词，谓语动作发生的时间通常与主句谓语动词动作发生时间是同时。
as侧重指从句与主句的动作同时进行，谓语动词可以是持续性的，可以是短暂性动词。
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绛旓細褰搘hile浠庡彞鐨勫姩浣滀笌涓诲彞鐨勫姩浣滃悓鏃跺彂鐢熸椂锛屼竴鑸娇鐢ㄤ竴鑸繃鍘绘椂銆備緥濡傦細While he was studying, she was cooking dinner.褰搘hile浠庡彞鐨勫姩浣滃湪涓诲彞鍔ㄤ綔涔嬪墠瀹屾垚鏃讹紝涓鑸娇鐢ㄨ繃鍘诲畬鎴愭椂銆備緥濡傦細While I had already finished my work, he arrived.銆1銆佸湪涓诲彞鍔ㄤ綔涔嬪悗 褰搘hile浠庡彞鐨勫姩浣滃湪涓诲彞鍔ㄤ綔涔嬪悗鍙戠敓鏃...
绛旓細while "褰撯︹︽椂鍊"锛屾湁琛ㄧず涓娈垫椂闂寸殑鍚箟鍦ㄩ噷闈紝寮曞鏃堕棿鐘惰浠庡彞锛屾墍浠ュ畠鍚庨潰鐨勫彞瀛愮殑璋撹鍔ㄨ瘝鏄繛缁х殑鎴栬〃鐘舵佺殑锛屽叾鏃舵佸彲浠ユ槸涓鑸椂鎬侊紙琛ㄧ姸鎬侊級鎴栬繘琛屾椂鎬锛堣繛缁у姩浣滐級锛欻e saw a snake while he was in the mountains.浠栧湪灞遍噷鐨勬椂鍊欒鍒颁簡涓鏉¤泧銆侷 was doing my homework while my ...
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绛旓細while鍚庣殑鍙ュ瓙璋撹鍔ㄨ瘝骞朵笉涓瀹氭槸ing褰㈠紡锛屽叿浣撻渶瑕佹牴鎹笂涓嬫枃鍜屾椂鎬佹潵瀹氾紝while鍚庣殑鍙ュ瓙鏃舵佸彲浠ユ槸涓鑸幇鍦ㄦ椂锛屼篃鍙互鏄繃鍘绘椂鎬併佽繘琛屾椂鎬佺瓑銆倃hile鐢ㄦ硶锛氫竴銆亀hile鍋氬悕璇嶏紝琛ㄧず鈥滀竴浼氬効鈥濄備緥鍙ワ細It takes a while to adapt to a new environment.閫傚簲鏂扮幆澧冮渶瑕佽姳涓娈垫椂闂淬備簩銆亀hile 鍋氳繛璇嶃1銆佸紩瀵...
绛旓細while 鍚庣殑鏄粠鍙ワ紝鏄椂闂寸姸璇粠鍙ワ紝鍙敤杩涜鏃舵垨杩囧幓鏃躲傚 while we were having dinner yesterday, there was a knock at the door.I made many friends while I lived there. 杩欎釜璇嶅悗鐨勪粠鍙ヨ鐢ㄥ欢缁у姩璇嶃
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