句子按结构分为三类：简单句，并列句，复合句★简单句：由一个主语(或并列主语)和一个谓语(或并列谓语)构成的句子Igetupatsixinthemorning.MymotherandIoftengoshoppingonweekendsThestudentssanganddanced.这些学生们唱啊，跳啊。★并列句：由并列连词(and,so,but,or,等)把两个或两个以上的简单句连在一起的句子。Shedoesn'tlikescience,andshethinksitisboring.Edhasagreatsportscollection,buthedoesn'tplaysports.★复合句：由一个句子来充当一个简单句中的一个成分(作状语，作宾语，作定语，作表语，等)这种句子叫复合句。⑴(时间状语从句)Thegirlcouldswimwhenshewasfouryearsold.简单句的五种基本句型⒈主语+不及物动词---Weexerciseeveryday.Thegirliscrying.⒉主语+及物动词+宾语---Ienjoyedreadingyour"what'scool?"。Weplantohaveaveryrelaxingvacation.⒊主语+连系动词+表语--Thisbikeismysister's.Thatsoundsinteresting.⒋主语+及物动词+某人+某物；或主语+及物动词+某物+to+某人Peoplegivemetheirmoney.Shegavemeanewbike.give--gave(给)Heshowedhisphotostome.但：Myfatherboughtmeanewwatch.Myfatherboughtanewwatchforme.⒌主语+及物动词+宾语+宾语补语(作补语的可以是名词，形容词，动词等)Ifoundasmallboycryinginthecorner.(动词ing,现在分词)Thatmademefeelveryhappy.(动词原形)Hemakesmeverytired.Wehavegreatfunplayinginthewater.句子的成分◆主语：表示所说的是“什么人”或“什么事物”，通常由名词，代词或相当于名词的词或短语等来充当。TomisfromAmerica.Heoftengoestothemovies.Eeatingtoomuchjunkfoodisbadforyouhealth.◆谓语：①说明主语是什么，怎么样，由系动词词和它后面的表语一起构成MyfatherisanEnglishteacher.Hissisterisverytall.Mary'sbooksareonthedesk.Thatsoundsgood.②说明主语做什么，由行为动词构成Theboysareplayingbasketball.Mybrothersingswe◆表语：说明主语“是什么”或“怎么样”，由名词，代词或相当于名词的词或短语等来充当，和系动词一起构成谓语。Hermotherisabankclerk.Thegirlisverybeautiful.Myhobbyislisteningtomusic.我的爱好是听音乐。◆宾语：放在介词、及物动词后，表动作行为的对象。由名词，代词，或相当于名词的词或短语等来充当。和主语一样。Heislookingforhispen.◆定语：用来修饰名词或代词。常放在名词前面，介词短语作定语时放在名词后。形容词作定语修饰不定代词anything,something,nothing,形容词放后面。“-----的”threebananas,aredsweater,yourname,Mary'sfatherthegirlinaredsweater,theboyunderthetree树下的男孩somethingdifferent,somethinginteresting◆状语：用来修饰动词，形容词，副词。表示①时间，②地点，③目的，④方式，⑤程度等。Iwaslateforschoolyesterday.(时间)Let'sgotothepark.(地点)Canyoucometohelpwithmyhomework?(目的)Hegetstoschoolbybus.(方式)Theboyisveryshy.(程度)
