构词法英语构词法主要有派生法(即词根加前缀或后缀构成的新词)、合成法和转化法三种。一、派生法常见的派生构词法归纳：(一)形容词加­ly变为副词的规律1．一般情况加­ly。如：real→really/careful→carefully/polite→politely/quick→quickly2．“辅音字母＋y”结尾的，将y改为­ily。如：angry→angrily/busy→busily/heavy→heavily3．以­ble结尾的，将ble改为bly。如：probable→probably/possible→possibly4．个别单词，去掉e再加y。如：gentle→gently/true→truly5．以­ic结尾的，加ally。如：basic→basically/energetic→energetically注意：有的名词＋ly→形容词。如：friend→friendly等。(二)动词/名词变形容词的常见后缀大家有疑问的，可以询问和交流(三)动词变为名词的后缀(四)形容词变名词的后缀(五)表示“人”的后缀在表示形容词、名词或动词后面加后缀变成具有某种职业或动作的人。常见的表示“人”的后缀有：(六)表示否定或相反意义的前缀和后缀(七)变动词的前缀和后缀(八)其他前缀的意义二、合成法两个或两个以上的词合成一个新词的构词方法称为合成法。三、转化法转化法：不改变词形，把一个词由一种词类转用为另一种词类的方法叫转化法。Ⅰ.单词填空：用括号内所给词的适当形式填空1．Iwassupposedtoarriveattheairportontime._______________(fortunate)，Iwasheldupbytheheavytrafficjam.2．Therefore，whentheybecomeoldertheyare_________(able)todoanyotherkindofwork.3．Veryearlythenextmorning，amazingly，wegotcompletelysatisfiedinatotally__________(expect)way.4．Iwon’tdothepurchasebecausethepriceofthisdressis_____________(reason)．5．Job__________(apply)needtoshowtheirabilitytobebothorganizedandflexibleintakingonmanytasksatthesametime.6．Allfactsarethesourceof____________(conclude)．7．However，most_________(science)agreethatEQhasalottodowith__________(educate)．8．Excellentoralandwritten________________(communicate)skillsinChineseandEnglishareof__________(important)．9．Freshfruitsandvegetablescanprovidemuchofourdaily_____________(require)．10．Itisyour________(free)todowhatyouwantafterclass.11．Asisknowntousall，theEntranceExamisagreat___________，andthestudentsare____________.(compete)12．Iam_________(grate)toyouforyourhelp.13．Hegavemesome____________(construct)suggestions.14．Ajury’sdecisioninacourtcasemustbeabsolutely__________(object)．15.Hedevotedmuchmoneytobuildingschoolsin___________(mountain)areas.16．Unfortunately，mycarbrokedownona__________(mud)road.17．Everyoneshouldplayhispartinbuildinga_____________(harmony)society.18．The____________(mystery)lettersentfromTaiwanmadetheprofessorlostinthought.19．Tomakemyself____