在一个句子中，before和when能同时使用吗 为什么该句中的before不能换成when或as？
after,Before,When\u4e2a\u522b\u6446\u5728\u53e5\u4e2d\u548c\u53e5\u9996\u7684\u5dee\u5f02\uff1f\u7531 after, before, \u548c when \u5f15\u5bfc\u7684\u72b6\u8bed\u4ece\u53e5\u5728\u590d\u5408\u53e5\u4e2d\u7684\u4f4d\u7f6e\u6bd4\u8f83\u7075\u6d3b\uff0c\u653e\u5728\u53e5\u9996\u6216\u53e5\u672b\u901a\u5e38\u4e0d\u4f1a\u5f71\u54cd\u539f\u53e5\u7684\u610f\u601d\uff1a
After I called you, I put it back = I put it back after I called you.
Before I came, did anything happen? = Did anything happen before I came?
When I saw my friend, he was eating. = My friend was eating when I saw him.
\u4f60\u7684\u7b2c\u4e09\u53e5\u5b89\u6392\u5f97\u5f88\u597d\u554a\uff0c\u5c31\u5e94\u8be5\u8fd9\u6837\u8bf4\uff01
\u591a\u8bfb\uff0c\u591a\u548c\u82f1\u8bed\u8fd1\u8ddd\u79bb\u63a5\u89e6\uff0c\u65f6\u95f4\u957f\u4e86\u4f60\u4eec\u5c31\u4f1a\u6210\u670b\u53cb\u3002\u5f00\u59cb\u7684\u65f6\u5019\u4f60\u4f1a\u501f\u52a9\u8bcd\u5178\u548c\u8bed\u6cd5\u89c4\u5219\u6765\u8ba4\u8bc6\u82f1\u8bed\uff0c\u6253\u4ea4\u9053\u591a\u4e86\u4e0d\u5c31\u8ba4\u8bc6\u4e86\u5417\uff1f\u4e0d\u719f\u6089\u7684\u5355\u8bcd\u6216\u8868\u8fbe\u65b9\u5f0f\u89c1\u591a\u51e0\u6b21\u5c31\u719f\u6089\u4e86\uff0c\u662f\u5427\uff1f\u719f\u6089\u4e86\u5c31\u4e0d\u4f1a\u518d\u7528\u8bcd\u5178\u548c\u8bed\u6cd5\u89c4\u5219\u4e86\u3002\u5927\u591a\u6570\u5b66\u751f\u4e0d\u662f\u201c\u5b66\u4e0d\u597d\u201d\u82f1\u6587\uff0c\u800c\u662f\u575a\u6301\u4e0d\u4e0b\u6765\u3002\u5c31\u50cf\u5543\u7518\u8517\u4e00\u6837\uff0c\u4e00\u8282\u4e0d\u751c\u4e24\u8282\u4e0d\u751c\u5c31\u6254\u4e86\u3002\u5176\u5b9e\uff0c\u63a5\u7740\u5543\u4e0b\u53bb\uff0c\u7518\u8517\u7684\u751c\u5473\u5c31\u51fa\u6765\u5566\uff01
before\u8868\u793a\u201c\u5728\u4ec0\u4e48\u4e4b\u524d\u201d\uff0c\u662f\u5f3a\u8c03\u4e3b\u53e5\u7684\u52a8\u4f5c\u53d1\u751f\u5728\u4ece\u53e5\u7684\u52a8\u4f5c\u4e4b\u524d\uff0c\u4ece\u53e5\u7684\u884c\u4e3a\u5177\u6709\u540e\u65f6\u6027\uff0c\u5373\u201c\u51e0\u5468\u4e4b\u540e\u6211\u624d\u610f\u8bc6\u5230\u6211\u7684\u753b\u4e0d\u89c1\u4e86\u3002\u201d
as\u548cwhen\u8868\u793a\u201c\u5f53\u2026\u2026\u65f6\u201d\uff0c\u4f46\u4fa7\u91cd\u70b9\u4e0d\u540c\u3002as\u7528\u4e8e\u53e3\u8bed\u8868\u793a\u201c\u540c\u4e00\u65f6\u95f4\u201d\uff0c\u201c\u4e00\u5148\u4e00\u540e\u201d\u6216\u201c\u968f\u7740\u201d\u7684\u610f\u601d\uff1a
As I was going out, it began to rain.
As spring warms the good earth, all flowers begin to bloom.
when\u5f3a\u8c03\u7684\u662f\u7279\u5b9a\u65f6\u95f4\uff0c\u5f53\u4ec0\u4e48\u65f6\u5019\uff0c\u4ece\u53e5\u7684\u884c\u4e3a\u4e0e\u4e3b\u53e5\u7684\u884c\u4e3a\u540c\u65f6\u3002
He was eating his breakfast when he heard the doorbell ring.
\u5e0c\u671b\u6211\u80fd\u5e2e\u52a9\u4f60\u89e3\u7591\u91ca\u60d1\u3002
不行,before,和when均指时间,用在一起会有逻辑矛盾.
before
英 [bɪ'fɔː] 美 [bɪ'fɔr]
prep. 在…之前，先于
adv. 以前；在前
conj. 在…以前；在…之前
when
英 [wɛn] 美 [wɛn]
conj. 考虑到；既然；当…时；在…时；如果
adv. 什么时候，何时；（用于时间的表达方式之后）在那时；其时；当时
pron. 那时；什么时侯
n. 时间，时候；日期；场合
如果一个讲述比较复杂情况的句子的话，是有可能同时出现的。
绛旓細涓嶈,before,鍜寃hen鍧囨寚鏃堕棿,鐢鍦ㄤ竴璧蜂細鏈夐昏緫鐭涚浘.before 鑻 [bɪ'fɔː] 缇 [bɪ'fɔr]prep. 鍦ㄢ︿箣鍓嶏紝鍏堜簬 adv. 浠ュ墠锛涘湪鍓 conj. 鍦ㄢ︿互鍓嶏紱鍦ㄢ︿箣鍓 when 鑻 [wɛn] 缇 [wɛn]conj. 鑰冭檻鍒帮紱鏃㈢劧锛涘綋鈥︽椂锛涘湪鈥︽椂锛涘鏋 adv. ...
绛旓細before琛ㄧず鈥滃湪浠涔堜箣鍓嶁濓紝鏄己璋冧富鍙ョ殑鍔ㄤ綔鍙戠敓鍦ㄤ粠鍙ョ殑鍔ㄤ綔涔嬪墠锛屼粠鍙ョ殑琛屼负鍏锋湁鍚庢椂鎬э紝鍗斥滃嚑鍛ㄤ箣鍚庢垜鎵嶆剰璇嗗埌鎴戠殑鐢讳笉瑙佷簡銆傗漚s鍜寃hen琛ㄧず鈥滃綋鈥︹︽椂鈥濓紝浣嗕晶閲嶇偣涓嶅悓銆俛s鐢ㄤ簬鍙ｈ琛ㄧず鈥滃悓涓鏃堕棿鈥濓紝鈥滀竴鍏堜竴鍚庘濇垨鈥滈殢鐫鈥濈殑鎰忔濓細As I was going out, it began to rain.As spring war...
绛旓細1銆佹剰鎬濇槸鈥滀笉涔呪濓紝鍙寚鈥滃皢鏉モ濓紝琛ㄧず鈥滈鏈熺殑鏃跺埢涓嶄箙灏变細鍒版潵鈥濄2銆佺敤浠ヨ皥璁轰笉涔呭皢鏉ョ殑浜嬫垨鍦ㄨ繃鍘绘煇鏃堕棿浠ュ悗涓嶄箙鎵鍙戠敓鐨勪簨锛屽己璋冧袱涓椂闂寸殑鎺ョ画鍏崇郴銆侷t was not long...before 璇婚煶锛氳嫳 [ɪt wəz nɒt lɒŋ bɪˈfɔː(r)] 缇...
绛旓細as soon as before as soon as杩炴帴鐨勬椂闂寸姸璇粠鍙涓紝鎸囨湭鍙戠敓鐨勫姩浣滐紝瑙勫緥鏄細涓诲彞涓鑸皢鏉ユ椂锛屼粠鍙ョ敤涓鑸幇鍦ㄦ椂浠ｆ浛涓鑸皢鏉ユ椂 濡傦細I will tell him the news as soon as he comes back銆 鎸囩揣鎺ョ潃鍙戠敓鐨勪袱涓煭鍔ㄤ綔锛屼富浠庡彞閮界敤涓鑸繃鍘绘椂 濡侶e took out his English books as soon as he ...
绛旓細There are four seasons in a year. Autumn comes before winter.涓骞存湁鍥涗釜瀛ｈ妭锛岀澶╁湪鍐ぉ涔嬪墠鍒版潵銆
绛旓細w/ 鏄痺ith鐨勬剰鎬濄備妇渚嬶細w or w/o u = with or without you 鑻辨枃缂╁啓璇嶅畠鏄敤涓涓鍗曡瘝鎴栬瘝缁勭殑绠鍐欏舰寮忔潵浠ｈ〃涓涓畬鏁寸殑褰㈠紡锛屽畠涓嶅悓浜庨瀛楁瘝缂╁啓璇嶃傝嫳鏂囩缉鍐欐槸鑻辫璇嶈鐨勭畝鏄撳舰寮忥紝鐢ㄨ嫳鏂囧崟璇嶄腑閲嶈鐨勫瓧姣嶆潵浠ｈ〃鏁翠釜鍗曡瘝鐨勬剰涔夛紝涔熻鎴愪负缂╃暐璇嶃
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绛旓細1銆佷竴鑸繃鍘绘椂琛ㄧず杩囧幓鏌愪釜鏃堕棿閲屽彂鐢熺殑鍔ㄤ綔鎴栫姸鎬侊紱杩囧幓涔犳儻鎬с佺粡甯告х殑鍔ㄤ綔銆佽涓猴紱杩囧幓涓昏鎵鍏峰鐨勮兘鍔涘拰鎬ф牸銆傚熀鏈粨鏋勶細涓昏+璋撹(鍔ㄨ瘝杩囧幓寮忥級+鍙ュ瓙鍏朵粬鎴愬垎锛涗富璇+was/were+褰㈠璇/鍚嶈瘝/浠嬭瘝鐭+杩囧幓鏃堕棿锛涘惁瀹氬舰寮忊憼was/were+not;鈶″湪琛屼负鍔ㄨ瘝鍓嶅姞didn't锛屽悓鏃惰繕鍘熻涓哄姩璇嶏紱涓鑸枒闂彞Did+...
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绛旓細1 Look! MS Evens is standing among the twelve students.2 I believe Peter told a lie just now.3 Do you know three times nine equals twenty-seven?濉┖濡備笅锛1 Hello,my dear friends.I'm your guide today.First,I'd like to (tell )you something about Hangzhou (before) we get ...
