斗鱼|do so, do that和do it的用法区别
时间:2012-09-16 来源:教法研究 点击：
斗鱼|do so, do that和do it的用法区别
doso,dothat(it)doso和dothat(it)常用来代替前面的动词短语，以免重复。一般说来，当被代替的动词是表示动作的动词和短暂动词时，doso,dothat(it)都可以使用，并无多少差别。如：
Johndranktoomuchyesterday.Iwonderwhyhedidso/that/it.但是，在较规范的英语中，doso和dothat在以下场合不能混用。
1.doso主要用来表示同一主语所做前面刚提到过的同一动作。如：Ipromisedtogetthetickets,andIwilldosoassoonaspossible.Thedoctorsaid,“Now,breathedeeply,Charlie.”Charliedoesso.
注意：如果动作的发出者是前面句子的宾语，也多用doso.如：Amanaskedthewritertolookafterhisparrotandthewritersaidhewoulddoso.
2.当do本身以不定式、现在分词和动名词等形式出现时，不管被替代的是谓语动词还是非谓语动词，其后一律接so。如：
Theydidn’tworkyesterdayandinsteadofdoingso,theywenttothecinema.Wedecidednottogo.Todosowouldhavemadethingsverydifficult.
3.当替代动词do的主语与前面所提到的句子的主语不同时，应该用dothat或doit.
如：Tomsuggestedemptyingallthepocketsonthetable,buttheownerofthepubwouldnotletthemdothat.
Ihaven’tgottimetogetthetickets.Who’sgoingtodothat?
4.注意，在某些特定的场合，doso,dothat,甚至doit,表示的意义也是不一样的。试比较：
Bob’sgettinghishousepainted,andmoreover,hewantsmetodoso.(Hewantsmetogetmy
housepainted.)
—Bob’sgettinghishousepainted!
—AndI’dliketodothat,too.(Iwanttogetmyhousepainted,too.)
Bob’sgettinghishousepainted,andmorevoer,hewantsmetodoit.(Hewantsmetopainthishouse.)
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