人教版pep 四下四单元第四课时

Unit4AtthefarmPartBReadandwriteTheseare…/Thoseare….MakeadialogueWhatarethese?Theyare....Arethey...?No,theyaren't./Yes,theyare.两人一组对话练习题(1)单复数的变化sheep______cow______hen_______duck______chick_______horse______pig_______goose________cat_______do_______it________this________that________is_______