《Unit?8?They?are?sweet?potatoes.》Teaching designTeaching aims:1.To?master?the?five?words?“tomatoes,?potatoes,?corns,?beans,?cabbages.?2.To?understand?and?speak?the?sentence?pattern?“What?are?those??Are?they….They?are…”3.?To?write?the?sentences:?Are?they?potatoes??Yes,?they?are.?Key?points:master the sentences (?Are?they?potatoesYes,?they?are.?No?,they?aren’t.).Difficult?points:To use the new words and sentences make simple dialogues.Teaching steps:Step1,Warm-up1, Greetings .T: Hello, boys?and?girls! How are you today? Ss: …2, Say a song together.(Old McDonald Had a Farm)