一般现在时代替将来时
<p> 时间状语从句，条件句中，从句用一般现在时代替将来时</p><p><span word="When">When</span>, <span word="while">while</span>, <span word="before">before</span>, <span word="after">after</span>, <span word="till">till</span>, <span word="once">once</span>, <span word="as">as</span> <span word="soon">soon</span> <span word="as">as</span>, <span word="so">so</span> <span word="long">long</span> <span word="as">as</span>, <span word="by">by</span> <span word="the">the</span> <span word="time">time</span>, <span word="if">if</span>, <span word="in">in</span> <span word="case">case</span> (<span word="that">that</span>), <span word="unless">unless</span>, <span word="even">even</span> <span word="if">if</span>, <span word="whether">whether</span>, <span word="the">the</span> <span word="moment">moment</span>, <span word="the">the</span> <span word="minute">minute</span>, <span word="the">the</span> <span word="day">day</span>, <span word="the">the</span> <span word="year">year</span>, <span word="immediately">immediately</span></p><p> <span word="He">He</span> <span word="is">is</span> <span word="going">going</span> <span word="to">to</span> <span word="visit">visit</span> <span word="her">her</span> <span word="aunt">aunt</span> <span word="the">the</span> <span word="day">day</span> <span word="he">he</span> <span word="arrives">arrives</span> <span word="in">in</span> <span word="Beijing">Beijing</span>. 他一到北京，就去看他姨妈。</p><p>典型例题</p><p>(1）<span word="He">He</span> <span word="said">said</span> <span word="he">he</span>________<span word="me">me</span> <span word="a">a</span> <span word="present">present</span> <span word="unless">unless</span> <span word="I">I</span>_______ <span word="in">in</span> <span word="doing">doing</span> <span word="the">the</span> <span word="experiment">experiment</span>.<span word="http">http</span>://<span word="yingyu">yingyu</span>.<span word="chazidian">chazidian</span>.<span word="com">com</span></p><p> <span word="A">A</span>. <span word="had">had</span> <span word="not">not</span> <span word="given">given</span>; <span word="had">had</span> <span word="not">not</span> <span word="succeeded">succeeded</span> <span word="B">B</span>. <span word="would">would</span> <span word="not">not</span> <span word="give">give</span>; <span word="succeed">succeed</span></p><p> <span word="C">C</span>. <span word="will">will</span> <span word="not">not</span> <span word="give">give</span>; <span word="succeed">succeed</span> <span word="D">D</span>. <span word="would">would</span> <span word="not">not</span> <span word="give">give</span>; <span word="will">will</span> <span word="succeed">succeed</span>.</p><p> 答案<span word="B">B</span>. 在时间，条件或让步主语从句中一般不用将来时。本题有<span word="He">He</span> <span word="said">said</span>，故为过去式。主句用将来时，故选<span word="B">B</span>. 此处用一般过去式代替了过去将来时。</p><p>(2) 表示现在已安排好的未来事项，行程等活动。</p><p> <span word="The">The</span> <span word="museum">museum</span> <span word="opens">opens</span> <span word="at">at</span> <span word="ten">ten</span> <span word="tomorrow">tomorrow</span>. 博物馆明天10点开门。(实际上每天如此。)</p></p>
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