如:day-days伏),boy-boys(男孩)4)以f或fe结尾,复数变f或fe为v再加-es如 knife-knives(书),half-halvesL半)(thief ,wife ,life ,shelf ,knife ,lea 7、f ,self ,half ,wolf)注意有少数词后直接加s,如roof-roofs (屋顶)5)以 o 结尾(1)辅音字母加o 结尾名词的加-es如 tomato-tomatoes(西红柿)...
( )4.The boys are boating. ( )5.A duck is in the river. B Hi,I’m Mike.It’s a fine day today.My family and I are in the park now.The park near my house is new.On my left(左边),there is a restaurant.On my right(右边),there is a big lake.There are many flowers and...