英语中的否定句

否定句子(NegativeSentences)1否定句的基本规则在任何语言，我们都有必要造出〝否定〞的句子，在中文，写出否定句子并非难事，在英文，无论任何否定句子，都必须遵行一些规定，以下是否定句子的例子肯定句子否定句子Ilikemusic.Idon’tlikemusic.Helovesswimming.Hedoesnotloveswimming.Theyhavecometowork.Theyhavenotcometowork.Marywenttoseeamovieyesterday.Marydidnotgotoseeamovieyesterday.Johnisagoodboy.Johnisnotagoodboy.IwillgotoNewYorktomorrow.IwillnotgotoNewYorktomorrow.Hecansing.Hecannotsing.Youmaygonow.Youmaynotgonow.Heshouldsleepearly.Heshouldnotsleepearly.Itisrainingnow.Itisnotrainingnow.Itrainsveryoftenhere.Itdoesnotrainveryoftenhere.Hehasalotofmoney.Hedoesnothavealotofmoney.Itisexcitingtoseethisgame.Itisnotexcitingtoseethisgame.Heaskedmethreequestions.Hedidnotaskmethreequestions.从以上的例子来看，我们可以归纳出以下的规则：1.Verbtobe后面可以直接加not。例如：Heisnotagoodteacher.Marywasnotveryhappywhenshewasyoung.Theyarenotstrongboys.Peterisnotcoming.Johnisnotgoingtowork.2.助动词后面可以直接加not。例如：Hehasnotwrittenanyletter.Theywillnotcome.Hecannotswim.Theyshouldnotcryveryoften.Tomhadnoteatenanythingbeforeyoucame.Hemaynevereatcakesinthefuture.Johnhasnotlivedhere.3.一般句子的动词必须加入do或他的变形。Hedoesnotsmoke.Hedidnotgo.Idonotlovesports.Youdonotliketoeatfish.Theydonotswimverywell.Wedidnotseethatmovie.在英文中，我们可以用haveto来代替must，以下是haveto的例子：HehastogotoChicagotomorrow.（他明天应该去芝加哥）Theyhadtobuythreeticketstogototheconcert.（他们必须买三张票去听音乐会）Ihavetoworkveryhard.（我必须努力工作）含有haveto的句子，如要改成否定句子，必须在haveto前面加do或它的变形，请看以下的例子：肯定句子否定句子Hehastoeatalotoffood.Hedoesnothavetoeatalotoffood.Hehadtoleave.Hedidnothavetoleave.Ihavetowritethatletter.Idonothavetowritethatletter.练习将以下的肯定句子改成否定句子：1.Isawyourbrotherlastnight.2.Ilikeapples.3.Sheisabeautifulgirl.4.Theycanplayviolinverywell.5.Mr.Changmustanswerthefollowingquestions.6.Hewenttoseehisbrotherlastnight.7.Hecouldsingmanysongs.8.Hewillbuythiscar.9.Itrainedheavilylastnight.10.Ihavelivedhereforthreeyears.11.Hehastoseehismother.12.Hehadtostayhereyesterday.2No,Never和Any的用法要达成否定的意思,有时我们也可以用no和never这些字，no必须跟一个名词，请看下面的例子：1.Isawnostudentshere.2.Therearenolakesinthiscountry.3.Ihavenomoney.4.Ihadnochoice.5.Hehasnofriends.以上这些例子也可以用not来表示否定的意思，如果用not，则以上的句子应该照下面的方式写；1.Ididnotseeanystudenthere.2.Wecannotfindanylakeinthiscountry.3.Idonothaveanymoney.4.Ididnothaveanychoice.5.Hedoesnothaveanyfriends.除以上not之外，never也可以表达否定的意思，以下都是never的例子，请注意never常用在完成式的句子里：Ihavenevergonethere.Hehasneverwrittenanysong.Theyhaveneverwashedtheirclothes.