重点单词,Period 4 Grammar,听，并跟读下列单词 1. discussion n. 讨论 2. express vt. 表达 听，并跟读下列单词变形 discussion n. discuss vt.,重点短语,听，并跟读下列短语 1. join the discussion 参加讨论 2. write down 记下，写下 3. be busy with sth 忙于某事,Period 4 Grammar,重点句型,听，并跟读下列句子 Simon was too excited to express himself clearly. 西蒙太激动了，不能清楚地表达他自己。,Period 4 Grammar,公交小句,听，并跟读下列句子 1She is generous enough to buy us so many presents. 她真慷慨，为我们买了这么多礼物。 2. Mum was busy cooking in the kitchen while I was busy with my homework. 妈妈忙着在厨房做饭，我在忙着写作业。,Period 4 Grammar,
