Unit 4,What can you do,Introduce,Can you sing a song,Words,swim 作动词，意为“游泳,eg: Did I think she could swim? 我真觉得她会游泳么,小练习： I usually_a few laps as warm-up during practices. A. swim B. swims C. swimming,A. 第一人称后跟动词原型,A,Words,wonderful wndfl 作形容词，意为“极好的，了不起的,常用例句： This is a wonderful thing. 这是一件美妙的事情,小练习： He is _（了不起,wonderful,Words,learn l:n 作动词，意为“学，学习，学会,常用例句： Sometimes, you can learn a lot from a single number. 有时，你能从一个数字中得知很多信息,小练习：It your voice as it goes along. A.learn B. learns
