【正文】
a sheep → some sheep a child → some children。 a scarf → three scarves Rule 5: We should change “ f” /“ fe” into “ ves” if the noun ends in “ f” or “ fe” . (6) some other nouns a man → two men。 a potato → three potatoes。 a match → some matches。 a cake → two cakes Rule 1: We add “ s” to most nouns. (2) a story → some stories Rule 2: If the noun ends in a consonant + y, we should change “ y” into “ ies” . (3) a bus → two buses。 3. use nouns before uncountable nouns to show their amounts. II. Teaching contents 1. New words and expressions: piece, glass, salt, cup, kilo, bottle, plate, carton, a piece of, a glass of, a packet of, two bags of, three cups of, four kilos of, six bottles of 2. New structures: What do we need to buy? III. Focus of the lesson and predicted area of difficulty 1. Know how to form the plural of countable