知识要点1 enthusiastic adj.热心的，热衷的
(教材P18) With life being made up of ups and downs，it is not always easy to maintain a good and enthusiastic attitude.
由于生活有起有伏，要保持一种良好而热情的态度并不总是那么容易。
[例] He doesn't know much about this subject，but he's very enthusiastic.
他对这个问题所知不多，但他非常有热情。
[知识拓展]
(1)be enthusiastic about 对……热心
(2)enthusiasm n. 热情
enthusiastically adv. 热心地，热情地
[即学即练] 单句语法填空
①Today，I am just as enthusiastic about my job as the day I first started.
②University teachers generally have admitted a lack of enthusiasm(enthusiastic) about their subjects.
③The whole playground was excited with the audience cheering enthusiastically (enthusiastic) for the athletes.
