主现从现什么意思？
主将从现是指在时间状语从句、条件状语从句和让步状语从句中，如果主句是一般将来时，从句用一般现在时替代一般将来时。常见的有以下六种情况：
一、如果主句是将来时或表示将来含义时，那么条件和时间状语从句多用一般现在时
如： When I grow up, I will be a nurse and look after patients/ I want to be a nurse and look after patients.
我长大后要当一名护士，照顾病人。
二、如果主句是祈使句，那么从句通常要用一般现在时
如：Don’t laugh at me when I make a mistake.
我犯错误的时候不要笑话我。
三、如果主句是含有情态动词的一般现在时，根据需要从句多用一般现在时
如：You should be quiet when you are in the reading room
在阅览室时应保持安静。
四、 如果if的条件状语从句遇到变换间接和直接时 , 祈使句应用not to....
如; She said not to close the window
常见的时间状语从句的连词有：as soon as,when,while ,as,until等
五、主将从现说的是在含有时间状语从句和条件状语从句的主从复合句中，如果主句的时态是一般将来时，那么从句要用一般现在时。
例如：I will tell him about it when he comes.
If it is fine tomorrow, we will go outing.
六、如果主句的时态是过去将来时，那么从句要用一般过去时 。例如：
He said that he would have another try if he had the chance.
I knew he could help me if he was free the next day.
主要标志有：if 、unless 、until、 when 、as soon as等
绛旓細鎮ㄥソ锛屾潯浠跺彞涓绫诲睘浜庯紙鐪熷疄鏉′欢鍙ワ級锛屼篃灏辨槸锛堝拰鐜板湪浜嬪疄鐩哥锛夌殑鏉′欢锛屾墍浠ヤ粠鍙ョ敤锛堜竴鑸幇鍦ㄦ椂锛夛紝浣嗕富鍙ユ棦鍙互鐢ㄤ竴鑸幇鍦ㄦ椂锛屼篃鍙互鐢ㄤ竴鑸皢鏉ユ椂锛岃繕鍙互鐢ㄨ繘琛屽紡锛屾垨鏄儏鎬佸姩璇嶏紝浣嗚涔夐渶瑕佹牴鎹粠鍙ョ殑鏉′欢鑰屽畾锛1锛夈涓荤幇浠庣幇銆戠殑鍙ュ瓙锛欼f you heat the water to 100'C, it boils.杩欓噷涓嶈兘...
绛旓細涓昏繃浠庤繃鐨勪笁绉嶅彞鍨嬪垎鍒槸锛氫富杩囦粠杩囥佷富灏浠庣幇銆涓荤幇浠浠汇佸父瑙佺殑鏈変互涓嬫儏鍐碉細1銆佹潯浠剁姸璇粠鍙ョ殑涓诲彞鏄竴鑸皢鏉ユ椂锛岄偅涔堜粠鍙ョ敤涓鑸幇鍦ㄦ椂銆2銆佷富鍙ユ槸绁堜娇鍙ワ紝浠庡彞瑕佺敤涓鑸幇鍦ㄦ椂銆3銆佷富鍙ユ槸鍚湁鎯呮佸姩璇嶇殑涓鑸幇鍦ㄦ椂锛屾牴鎹渶瑕佷粠鍙ュ鐢ㄤ竴鑸幇鍦ㄦ椂銆4銆佽嫢if鐨勬潯浠剁姸璇粠鍙ラ亣鍒板彉鎹㈤棿鎺ュ拰鐩存帴鏃讹紝绁堜娇鍙...
绛旓細2銆佷富绁浠庣幇搴旇鏄鏋滃彞瀛愭槸绁堜娇鍙ラ偅涔堟椂鎬佺敤涓鑸幇鍦ㄦ椂銆備緥鍙ワ細Please let me know if he comes back.杩欐槸涓荤浠庣幇锛屼富鍙ユ槸Please let me know涓惈鏈夆漰lease鈥滄槸绁堜娇鍙ワ紝绁堜娇鍙ヤ竴鑸紑澶存槸浠o 銆乴et銆乨on't銆乶ever銆乼o do寮澶达紝"he comes back"鏄粠鍙ワ紝"comes"璇存槑鏄竴鑸幇鍦ㄣ3銆佷富鎯呬粠鐜...
绛旓細濡傛灉涓诲彞鏄皢鏉ユ椂鎴栬〃绀哄皢鏉鍚箟鏃讹紝閭ｄ箞鏉′欢鍜屾椂闂寸姸璇粠鍙ュ鐢ㄤ竴鑸幇鍦ㄦ椂銆傚鏋滀富鍙ユ槸绁堜娇鍙ワ紝閭ｄ箞浠庡彞閫氬父瑕佺敤涓鑸幇鍦ㄦ椂銆傚鏋滀富鍙ユ槸鍚湁鎯呮佸姩璇嶇殑涓鑸幇鍦ㄦ椂锛屾牴鎹渶瑕佷粠鍙ュ鐢ㄤ竴鑸幇鍦ㄦ椂銆傚鏋滀富鍙ョ殑鏃舵佹槸杩囧幓灏嗘潵鏃讹紝閭ｄ箞浠庡彞瑕佺敤涓鑸繃鍘绘椂銆傛墍璋撶殑鈥滀富灏浠庣幇鈥濓紝灏辨槸鈥滀富鍙ョ敤灏嗘潵鏃舵侊紝浠庡彞鐢ㄧ幇鍦...
绛旓細涓诲皢浠庣幇鏄寚鍦ㄦ椂闂寸姸璇粠鍙 鍜屾潯浠剁姸璇粠鍙ュ拰璁╂鐘惰浠庡彞涓紝濡傛灉涓诲彞鏄竴鑸皢鏉ユ椂锛屼粠鍙ョ敤涓鑸幇鍦ㄦ椂鏇夸唬涓鑸皢鏉ユ椂銆 鍦ㄥ鍚堝彞涓紝鐢眞hen ,as soon as ,after ,before ,until , unless绛夊紩瀵肩殑鏃堕棿鐘惰浠庡彞鍜岀敱if 寮曞鐨勬潯浠剁姸璇粠鍙ワ紝閮界鍚堚滀富灏嗕粠鐜扳濈殑鍘熷垯锛屽嵆涓诲彞鏄竴鑸皢鏉ユ椂锛堟垨鐢ㄤ竴鑸...
绛旓細涓诲皢浠庣幇鏄竴绉嶅嚭鐜板湪鐘惰浠庡彞鎬荤殑鑻辫璇硶锛屽父鎸囧湪鏃堕棿鐘惰浠庡彞銆佹潯浠剁姸璇粠鍙ュ拰璁╂鐘惰浠庡彞涓紝濡傛灉涓诲彞鏄竴鑸皢鏉ユ椂锛屼粠鍙ョ敤涓鑸幇鍦ㄦ椂鏇夸唬涓鑸皢鏉ユ椂鐨勬儏鍐点傚鏋滀富鍙ユ槸鍚湁鎯呮佸姩璇嶇殑涓鑸幇鍦ㄦ椂锛屼粠鍙ュ鐢ㄤ竴鑸幇鍦ㄦ椂锛歒ou should be quiet when you are in the reading room銆傚湪闃呰瀹ゆ椂搴斾繚鎸佸畨闈...
绛旓細1锛屽璇粠鍙ラ噷涓诲彞鐢ㄤ竴鑸幇鍦ㄦ椂锛屼粠鍙ュ彲鐢ㄤ换鎰忔椂鎬侊紝褰掔撼涓涓荤幇锛堜竴鑸幇锛変粠涓嶉檺锛堜换鎰忔椂鎬侊級2锛寀nless锛屼綘涓嶅彲鑳借В鍐充簡杩欎釜闂 闄ら潪 鍛㈤棶浜嗚佸笀銆
绛旓細涓荤幇浠涓嶇幇鏄寚锛屽鏋滀富鍙ユ槸鐜板湪鏃舵侊紙鍖呮嫭涓鑸幇鍦ㄦ椂锛岀幇鍦ㄨ繘琛屾椂锛岀幇鍦ㄥ畬鎴愭椂锛夛紝浠庡彞鐨勬椂鎬佸彲鏍规嵁瀹為檯鎯呭喌鑰屽畾銆
绛旓細閫墂ould meant銆傝繖绉嶆儏鍐碉紝鏈変釜鍗佷笁瀛楀彛璇锛氣滀富灏嗕粠鐜帮紝涓昏繃灏嗕粠杩囷紝涓荤幇浠庣幇鈥濄傚嵆涓诲彞鏄竴鑸皢鏉ユ椂锛屼粠鍙ョ敤涓鑸幇鍦ㄦ椂锛涗富鍙ョ敤杩囧幓灏嗘潵鏃讹紝浠庡彞鐢ㄤ竴鑸繃鍘绘椂锛涘綋涓诲彞涓湁can/can鈥檛鐨勮瘽锛屽垯浠庡彞鐢ㄤ竴鑸幇鍦ㄦ椂銆傝繖閲屼粠鍙ユ槸涓鑸繃鍘绘椂锛屾墍浠ヤ富鍙ョ敤杩囧幓灏嗘潵鏃(would mean)銆傚綋鐒朵互涓婅鐨勬槸鎸囩湡瀹炴潯浠...
绛旓細涓诲皢浠庣幇鏄寚鍦ㄦ椂闂寸姸璇粠鍙ュ拰鏉′欢鐘惰浠庡彞涓紝濡傛灉涓诲彞鏄竴鑸皢鏉ユ椂锛屼粠鍙ョ敤涓鑸幇鍦ㄦ椂鏇夸唬涓鑸皢鏉ユ椂銆傚父瑙佺殑鏈変互涓嬪洓绉嶆儏鍐碉細涓銆佹潯浠剁姸璇粠鍙ョ殑涓诲彞鏄竴鑸皢鏉ユ椂锛岄偅涔堜粠鍙ュ父甯哥敤涓鑸幇鍦ㄦ椂 濡傦細 When I grow up, I鈥檒l be a nurse and look after patients 鎴戦暱澶у悗瑕佸綋涓鍚嶆姢澹紝鐓ч【鐥呬汉 浜屻...
