since和from和for的区别 from和since的区别？
since\u3001for\u548cfrom\u7684\u533a\u522bfrom\u8868\u793a\u4ece\u4ec0\u4e48\u65f6\u95f4\u5f00\u59cb\uff0c\u4e0d\u8868\u793a\u6301\u7eed\uff1bsince\u8868\u793a\u4ece\u4ec0\u4e48\u65f6\u95f4\u4e00\u76f4\u5230\u73b0\u5728\u6301\u7eed\uff0c\u901a\u5e38\u4e0e\u5b8c\u6210\u65f6\u4e00\u8d77\u7528\u3002\u4e00\u4e2a\u662f\u6765\u81ea\uff0c\u4e00\u4e2a\u662f\u4ece
Since 用来说明动作起始时间，for用来说明动作延续时间长度。I have lived here for more than twenty years.
My aunt has worked in a clinic since 1949.
I have known Xiao Li since she was a little girl.
My brother has been in the Youth League for two years.
I have not heard from my uncle for a long time.
也就是说for 接一个时间段，since+时间起点(具体过去时间,如:1999; last+时间; 一段时间+ ago;一般过去时从句).如: I have been here for over 10 years. I have been here since 10 years ago。
from: [ fr�0�0m, fr�0�5m, frm ]
prep. 从,从...起
例句与用法
1. The sky slowly changed from blue to red.
天空慢慢由蓝色变为红色。
2. The train starts from Beijing.
这辆火车从北京开出。
3. From the evidence we have heard so far...
就我们所知的证据来说。。。
4. He dived from the bridge and rescued the drowning child.
他从桥上跳入水中，救起溺水的孩子。
5. Tears distilled slowly from her eyes.
泪水从她的眼睛里慢慢地滴下来。
6. Her arrest produced an immediate reaction from the press.
她被捕的事立刻在新闻界引起反应。
7. He saved his daughter from the fire but at the cost of his own life.
他牺牲了生命，把女儿从大火中救出来。
8. The dog roused a deer from the bushes.
狗惊起了丛林中的一只鹿。
绛旓細涓銆佽〃绀烘椂闂村惈鎰忎笉鍚 1銆from鍙〃绀烘煇浜嬬殑璧风偣锛岃琛ㄧず璧锋闇鐢╢rom...to銆攗ntil銆...缁撴瀯銆備緥锛欸reat changes have taken place in Beijing from 1990 to 2000.浠1990骞村埌2000骞达紝鍖椾含鍙戠敓浜嗗法澶х殑鍙樺寲 2銆since鏄寚寤剁画鍒拌璇濇椂鍒荤殑鍔ㄤ綔鎴栨儏鍐靛紑濮嬩簬浣曟椂,鏄珯鍦ㄥ姩浣滀腑姝㈢殑鏃堕棿鐐瑰線杩囧幓杩芥函璁＄畻銆...
绛旓細5.鐢for/since濉┖ 1锛 He has lived in Nanjing ___ the year before last.2锛. I鈥檝e known him ___ we were children.3锛塐ur teacher has studied Japanese ___ three years.4锛塖he has been away from the city ___ about ten years.5锛 It鈥檚 about ten years ___ she left ...
绛旓細since+鏃堕棿鐐 for+鏃堕棿娈 Since 鐢ㄦ潵璇存槑鍔ㄤ綔璧峰鏃堕棿,for鐢ㄦ潵璇存槑鍔ㄤ綔寤剁画鏃堕棿闀垮害銆 since鐨鐢ㄦ硶涓昏鏈変袱鐐:涓鏄〃绀衡滆嚜浠庘︹︿互鏉モ,浜屾槸琛ㄧず鈥滄棦鐒垛濅箣鎰忋備絾濡傛灉鍙簡瑙ｈ瘝鐨勫惈涔,鑰屼笉浜嗚В鍏剁敤娉,鍦ㄤ娇鐢ㄦ椂灏变細閫犳垚閿欒銆備緥濡:I have not heard from him since I lived in Shanghai. 涓嶅皯浜轰細鏈涙枃鐢熶箟,灏...
绛旓細i have had the book for two weeks.he has had the book since two weeks ago.my sister has studied english since one month ago.they have been skating for five hours.they have been skating since five o'clock 鐢╤ow far涓since鍜宖or閫犲彞 How far is it from your home to school?H...
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绛旓細(3)鈥擶hy is she absent? 濂逛负浠涔堢己甯?鈥擝ecause she is sick. 鍥犱负濂圭梾浜嗐傛澶栵紝鍦ㄥ己璋冨彞鍨嬩腑锛屽彧鑳界敤because銆備緥濡傦細(4)It was because I missed the early bus that I was late for school. 鎴戜笂瀛﹁繜鍒版槸鍥犱负鎴戞病鏈夎刀涓婃棭鐝苯杞︺2. since渚ч噸涓诲彞锛屼粠鍙ヨ〃绀烘樉鐒剁殑鎴栧凡涓轰汉鎵鐭ョ殑鐞嗙敱锛...
绛旓細For鍜since鐨鍖哄埆 鍖哄埆涓锛欶or 鍚庨潰浣跨敤鏃堕棿娈碉紝since 鍚庨潰浣跨敤鏃堕棿鐐 鍖哄埆浜岋細Since 鍙兘鐢ㄥ湪鐜板湪瀹屾垚鏃舵侊紝For 鏈涓昏鐢ㄥ湪鐜板湪瀹屾垚鏃跺拰涓鑸繃鍘绘椂 I has been a teacher for three years.I has been a teacher since 1996.I was a teacher for three years. 杩欑琛ㄨ揪鍙互锛宖or three years琛ㄧず...
绛旓細涓嶈繃,瀹堕暱浠彲鑳戒細涓鸿繖绉嶆敼鍙樹粯鍑轰竴浜涗唬浠,鍥犱负杩欐牱寰堝浜哄氨闇瑕佸拰瀛╁瓙浠緟鍦ㄥ閲屻傗斺擳he lovers in love forget each other since now?鐩哥埍鐨勬儏浜轰粠姝や袱涓ょ浉蹇橈紵2銆from now 鈥斺擸ou should look out for yourself from now on.浠庣幇鍦ㄨ捣浣犲簲璇ュ涓鸿嚜宸辩潃鎯炽傗斺擯erhaps it would be best not ...
绛旓細渚嬶細I鈥檝e been very busy since I came back from Japan. 鎴戜粠鏃ユ湰鍥炴潵鍚庡氨涓鐩村緢蹇欍備緥锛欼t鈥檚 been ten years since they married. 鑷粠缁撳鍒扮幇鍦ㄥ凡缁忓崄骞翠簡銆備笂闈袱涓緥鍙ョ殑 Since 鍚庨潰鎺ョ殑閮芥槸瀛愬彞銆3.Since 鍥犱负 Since 杩樻湁涓涓父瑙佺殑鐢ㄦ硶锛屽氨鏄敤鏉ヨ〃杈俱屽洜涓恒嶏紝璺 because 鐨勬剰鎬濅竴...
绛旓細1. for鍜since寮曞鐭/浠庡彞鍦ㄥ彞涓仛鏃堕棿鐘惰鏃讹紝濡傛灉璇ュ彞鏄偗瀹氬彞锛屽垯瑕佹眰鍙ュ瓙璋撹鍔ㄨ瘝鏄欢缁у姩璇嶃備絾鏄鏋滃彞瀛愪负鍚﹀畾鍙ワ紝鍒欐棤姝よ姹傘傚锛欼 have lived here for 3 years.= I have lived here since 3 years ago.I haven't seen you for a long time.2. 姝ょ鐢ㄦ硶涓紝for鍙兘鍋氫粙璇嶏紝...
