小题1:As soon as we arrived, we couldn’t wait to start/get started.

小题2:I’m very impressed by his devotion to teaching.

小题3:Mr. Zhang has a sense of humor and always makes his class lively and interesting.

小题4:I feel it necessary to let him know cheating is wrong.

小题5:Look at the trouble I am in! If only I had followed your advice.

题目分析：

小题1:考查连词：As soon as 后面接时间状语从句，we arrived,词组： 迫不及待地can’t wait to do，开始是： start/get started.

小题2:考查词组：be impressed by 对…印象深刻， his devotion to teaching献身于教学.

小题3:考查词组：幽默感：a sense of humor ，and连接并列句： makes his class lively and interesting.是使用了make+宾语+形容词（宾语补足语）结构。

小题4:考查句型：feel it +adj+ to do，觉得做…是怎样的…，let sb do sth让某人做….

小题5:考查定语从句：I am in是定语从句修饰the trouble! 句型：If only +虚拟语气的句子（但愿…就好了），后接相应的过去时，I had followed your advice.

点评：结合汉语意思，结合所给提示，选用适当的句型和短语，注意句子的主谓一致，动词的时态语态，名词的单复数等。