名词复数学1-What are these?-Whats this?-Its a pen.-They are pens.2-What are those?-Whats that?-Its an English book.-They are English books.3watchesoranges bags-Whatre these ?-Theyre .boxes4mapskeys-Whatre those ?-Theyre .dictionaries5单数复数可数名词如何变化？规则变化不规则变化规则变化61. 一般情况下，直接在词尾加-s 构成复数形式。结尾是清辅音读s ，结尾是浊辅音或元音读zcarbackpackcarsbackpacksbook books.7namepencardrulernamespenscardsrulers8box2. 以s, x, ch, sh 等结尾的名词， 在词尾加-es 构成复数形式。统一读izboxesclass classeswatch watchesbrush brushessxshch2.9bus busesfoxesfox( 狐狸)di
