I.口语练习
There are many helpful inventions around us.Choose one youre familiar with and introduce its history to your partner.
Ⅱ.听力
A.根据所听到的内容在短文空白处填上正确的单词
生词:cacao n.可可(树);可可豆 ceremony n.典礼
Do you know how chocolate is 1 and what it is made of? Whe...