英语四级语法（基础）ppt课件.ppt

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1、英语四级语法（基础）英语四级语法（基础）英语句子的拆分：ThistrendbeganduringtheSecondWorldWar,whenseveralgovernmentscametotheconclusionthatthespecialdemandsthatagovernmentwantstomakeofitsscientificdepartmentscannotbepredictedindetail.英语译群的基本形式：主谓宾结构：主语（名词）+谓语（动词）+宾语（名词）例句：IspeakEnglish.主谓修饰结构：主语（名词）+谓语（动

2、词）+修饰语（形容词，副词，状语，被动态等）例句：Helookscool.Tomrunsfast.Hestayedathome.Iwasbeaten.英语句子的组成英语的复合句都是由数个短意群组成的：YouarethegirlwhoI’mlookingfor.谓语以及非谓语Finishingthehomework,TomwantedtowatchTV.动词的时态过去现在将来一般一般过去时一般现在时一般将来时进行过去进行时现在进行时将来进行时完成过去完成时现在完成时将来完成时一般过去时动词的变化1：+edEx.Theywatchedthatmovie

3、yesterday.动词的变化2：+iedEx.trytried动词的变化3：不规则变化Ex.iswas一般现在时第三人称单数：+s结尾是s,x,sh,ch的话，+es表示规律发生的动作：Tomreadsnewspapereverynight.表示客观规律：Thesunrisesfromtheeast.进行时：动词变化：be+动词现在分词（+ing）现在进行时:Theyarehavingapicnic.过去进行时：Theywerehavingapicnic.完成时：动词变化：have(had)+动词过去分词现在完成时：Ihavefinished

4、myhomeworksothatIcanplayfootballnow.过去完成时：Ihadfinishedmyhomeworkuntilmymothercameback.意群的类型：主谓宾结构：IspeakEnglish.主谓(修)结构：Tomrunsfast.冠词：a,an,the:Atsametime,educationalresearchershavecomeupwithinnovativeteachingstrategiesforkids.修饰语：（形容词与副词）形容词：Thereisstillanewsubject.Thereissom

5、ethingnew.副词：TheWHOhasgivenmulti-drugtherapytopatientsfreelyforthelastfiveyears.修饰语：副词副词修饰动词：Hecantakephotosverywell.副词修饰形容词：YourEnglishisextremelygood.副词修饰副词：Ipushthedoorveryhard.短译群中的修饰语（介宾结构）Onedifficultyisthatalmostallofwhatiscalledbehavioralsciencecontinuestojudgebehavior

6、bystatesofmind,feelings,traitsofcharacter,humannatureandsoon.短译群中的修饰语（介宾结构）Theroleofnaturalselectioninevolutionwasstudiedonlyalittlemorethanahundredyearsago,andtheselectiveroleoftheenvironmentinshapingandmaintainingthebehavioroftheindividualisonlybeginningtoberecognized.短译群中的修

7、饰语（插入语）Theirimprovedintelligence,sovitaltotheiroldhuntinglife,wereputtoanewuse.短译群中的修饰语（插入语）Itisgenerallyrecognized,however,thattheintroductionofthecomputerintheearly20thcentury,followedbytheinventionoftheintegratedcircuitduringthe1960s,radicallychangedtheprocess,althoughitsim

8、pactonthemediawasnotimmediatelyapparent.短译群中的修饰语（插入语）Itisgene