练习材料：
Lesson 4 An exciting trip
I have just received a letter from my brother, Tim. He is in Australia. He has been there for six months. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice Springs, a small town in the centre of Australia. He will soon visit Darwin. From there, he will fly to Perth. My brother has never been abroad before, so he is finding this trip very exciting.
任务配置：
L0+L4
知识笔记：
- firm 商行，公司
- exciting 令人激动的，令人兴奋的
- centre 中心
*abroad 在国外
练习感悟：
今天是16号，来补一下14号的
仿佛重复多次，每天给自己创造语境，自己对英文也有了一点敏感程度
