Lesson 4 An exciting trip 激动人心的旅行单词讲解关键句型课文讲解练习复习补充内容单词讲解New words and Expressionsexciting adj. 令人兴奋的receive v. 接受,收到firm n. 商行,公司different adj. 不同的center n. 中心abroad adv. 在国外1. exciting adj. 令人兴奋的 excited adj. (感到)兴奋的excite v. 令某人兴奋(人做宾语)eg. The news excited us. (过去式) 令我们兴奋。eg. I have never been to Australia. It must be an exciting trip. 我从