只要是条件状语从句就可以用主将从现么
“主将从现”是指的是当主句是一般将来时的时候,条件、时间、地点或让步状语从句中时态应该遵循的指导原则.这一原则尽管只有四个字,但是却适用于任何情况.不过简单的字面意思并不能涵盖“从现”的整个含义,因此在使用时要掌握以下几点：一、在真实条件从句中,可能会用到三种表示现在的时态
1、如果从句与主句的行为将接踵发生,那么从句要用一般现在时,如：
He will come in if you do your homework.如果你要做作业,他们就会进来.
2、如果主句的行为将发生在从句行为的过程中,那么从句要用现在进行时,如：
He will not come in if you are doing your homework.如果你做着作业的话,他就不会进来.
3、如果主句的行为将发生在从句行为的之前,那么从句要用现在完成时,如：
He will come in if you have done your homework.如果你已经做完作业,他们就会进来.
二、在虚拟条件从句中,对现在的虚拟应该相应推前到过去,即主句用“would + 动词原形”,从句可能会用三种由现在往前推的三种情况表示对将来的虚拟.
1、把条件从句中用现在表示将来的动词往前推为过去式,如：
They (would be killed) if the car (went) over the cliff.如果汽车真的翻在悬崖下,他们就会丧命.
2、把条件从句中用“shall + 原形”表示将来的动词往前推为“should + 原形”,如：
They (would be killed) if the car (should go) over the cliff.如果汽车真的有可能翻在悬崖下,他们就会丧命.
3、把条件从句中用“be to + 原形”表示预定将来的动词往前推为“were to + 原形”,如：
The car (would not be broken) if it (were to go) over the cliff.如果汽车真的按预定翻在悬崖下,他也不会摔坏.
绛旓細1銆佸鏋滀粠鍙ヤ笌涓诲彞鐨勮涓哄皢鎺ヨ傅鍙戠敓,閭ｄ箞浠庡彞瑕佺敤涓鑸幇鍦ㄦ椂,濡傦細He will come in if you do your homework.濡傛灉浣犺鍋氫綔涓,浠栦滑灏变細杩涙潵.2銆佸鏋滀富鍙ョ殑琛屼负灏嗗彂鐢熷湪浠庡彞琛屼负鐨勮繃绋嬩腑,閭ｄ箞浠庡彞瑕佺敤鐜板湪杩涜鏃,濡傦細He will not come in if you are doing your homework.濡傛灉浣犲仛鐫浣滀笟鐨勮瘽,浠栧氨...
绛旓細1銆佹妸鏉′欢浠庡彞涓敤鐜板湪琛ㄧず灏嗘潵鐨勫姩璇嶅線鍓嶆帹涓鸿繃鍘诲紡锛屽锛歍hey (would be killed) if the car (went) over the cliff. 濡傛灉姹借溅鐪熺殑缈诲湪鎮礀涓, 浠栦滑灏变細涓у懡銆2銆佹妸鏉′欢浠庡彞涓敤鈥渟hall + 鍘熷舰鈥濊〃绀哄皢鏉ョ殑鍔ㄨ瘝寰鍓嶆帹涓衡渟hould + 鍘熷舰鈥濓紝濡傦細They (would be killed) if the car (should ...
绛旓細鏉′欢鍜屾椂闂寸姸璇粠鍙ョ敤涓诲皢浠庣幇銆備富灏嗕粠鐜版槸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銆傛槸涓绉岻f寮曞鐨勬潯浠跺彞銆傚父瑙佺殑鏈変互涓嬪洓绉嶆儏鍐碉細1銆佸鏋滀富鍙ユ槸灏嗘潵鏃舵垨琛ㄧず灏嗘潵鍚箟鏃讹紝閭ｄ箞鏉′欢鍜屾椂闂寸姸璇粠鍙ュ鐢ㄤ竴鑸幇鍦ㄦ椂銆2銆佸鏋滀富鍙ユ槸绁堜娇鍙ワ紝閭ｄ箞...
绛旓細鍦╥f寮曞鐨勬潯浠剁姸璇粠鍙ヤ腑锛鏃犺涓诲彞鐢ㄤ竴鑸皢鏉ユ椂銆佹儏鎬佸姩璇嶈繕鏄浣垮彞锛屼粠鍙ュ潎鐢ㄤ竴鑸幇鍦ㄦ椂锛屽嵆涓诲皢浠庣幇鍘熷垯銆備緥鍙ワ細They are going to have a picnic if they are free next Saturday.(涓诲彞鐢ㄤ竴鑸皢鏉ユ椂) (if浠庡彞鐢ㄤ竴鑸幇鍦ㄦ椂)
绛旓細鈥滀富灏嗕粠鐜扳锛屽彧閫傚悎銆愮姸璇粠鍙ャ戯紝鍖呮嫭鐢眎f锛寀nless 绛夊紩瀵肩殑銆愭潯浠剁姸璇粠鍙ャ戝拰鐢眞hen锛宎s soon as绛夊紩瀵肩殑銆愭椂闂寸姸璇粠鍙ャ戙傚锛欼 will call you as soon as I get there./ If it doesn't rain tomorrow,we'll go on a picnic.锛岃繖涓や釜鍙ュ瓙閮芥槸鍏稿瀷鐨勨滀富灏嗕粠鐜扳濈殑鍙ュ瓙銆備絾銆愬璇...
绛旓細prefer 灏辫浜 涓诲皢浠庣幇 鍙槸閫傚悎澶ч儴鍒嗘儏鍐碉紝 鏈変簺鏄庢槑涓诲彞涓嶆槸灏嗘潵鑰屾槸閫氬父鎯呭喌锛屽氨涓嶉渶瑕佺敤灏嗘潵鏃朵簡銆傛瘮濡 If he is free, he often does some reading. 濡傛灉浠栨湁绌猴紝浠栫粡甯歌鐐逛功銆傘愪繆鐙肩寧鑻便 鍥㈤槦涓烘偍瑙ｇ瓟锛屼笉鎳傝拷闂紝鏈夌敤鐨勮瘽璇烽噰绾充竴涓嬶紒
绛旓細鏃堕棿鐘惰浠庡彞涓篃鍙互杩欎箞鐢.
绛旓細鏄 褰撶敤鍒鏉′欢鐘惰浠庡彞鏃朵富鍙ョ敤灏嗘潵鏃朵粠鍙ヤ竴鑸幇鍦ㄥ笀琛ㄥ皢鏉 I will go to school if it dosn't rain tomorrow
绛旓細if / unless寮曞鐨鏉′欢鐘惰浠庡彞鍜屾墍鏈夌殑鏃堕棿鐘惰浠庡彞閮鏄富灏浠庣幇
绛旓細鏉′欢鐘惰浠庡彞 if, unless, as(so)long as, etc.璁╂鐘惰浠庡彞 though, although, even if, even though, however, whatever, as,etc.姣旇緝鐘惰浠庡彞 as鈥s, so鈥s, than, etc.鏂瑰紡鐘惰浠庡彞 as, as if, as though, etc.if瑕鐢ㄤ富灏浠庣幇 Once鐪嬫儏鍐 涓嶇敤鎶婅嫳璇杩欎箞姝 鑻辫鍏跺疄鏄彲浠鍙橀氱殑...
