求助：新概念英语二册第四课中的问题

Lesson 4 An exciting trip
★New words and expressions
☆exciting adj.令人兴奋的
v.excite 激动->adj.excited ,exciting
-ed:自己感到；-ing：令人感到
如：interesting:令人感到有趣的；interested：感到有意思的
动词的宾语一定是人，让后面的人感到……
eg:The news excited me.
Rhe book interests me.
☆receive v.接受，收到
3个接受：
accept:同意接收，主观上乐意
receive（与have通用）：客观的收到 receive/have a letter from sb
eg:This morning I received a bunch of flowers from a boy,but I didn't accept it.
take:接受，与前两词无可比性，只需记住两个搭配：
take the exam;take advice
☆firm n.商行，公司
等同于company
☆abroad adv.在国外
注意是个副词，直接和动词连用，不需要介词
go/live/study abroad
★Text
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 ha just bought an Australian car and has gone to Alice Springs,a small town in the centre of Australi