Unit 7 Summer holiday plansIntroduceT:Do you know anything about Australia?T:Do you want to know something about London?Who is from London?Words children tldrn 名词,意为“孩子们”,为复数,其单数形式为child。eg:The children are playing in the playground.孩子们在操场上玩耍。小练习:用所给词的适当形式填空:The _(child)climb up the trees.children【拓展】(1)通过内部元音变化的方法来构成复数形式。eg:manmen;womanwomen;footfeet ;tooth teeth ;goose geese Words(2)以f或fe结尾,在构成复数时,去掉f或fe加-ves。eg:thief thieves;wife wives ;life lives ;knife knives;wolf wolves (3)单、复数相同的形式。eg:she