【3.ThewholenationwaswhennewscamethatChina’sfirstman3.ThewholenationwaswhennewscamethatChina’sfirstman-madesatellitehadbeensuccessfullylaunched.a.perpetualb.excitingc.asti】

陈艇回答：

　　1.选c,astir.adj.轰动起来的,沸腾起来的.从词义上说a不合适,exciting一般修饰物,令人兴奋的,如excitingnews令人兴奋的新闻；thrilling一般也是修饰物,令人兴奋的,令人毛骨悚然的athrillingstory.

　　2.选b,例句Davidisknownasaenglishteacherinourtown；knowfor辨认出,识别出(某人)是(某种人),认出(某人)是…而且应该是被动语态；答案d也不正确,应该被动.

　　3.选b,endupinprison坐牢（以坐牢而告终）还有一个短语putsbintoprison