新东方网英语四级频道为备考英语四级的同学整理了英语四级词汇讲解及考点归纳，希望可以为大家带来帮助，一起来学习一下吧。
I only wish he showed half as much for his English lessons.
四级词汇讲解:
wish在表示愿望时，使用的频率很高。可以用在陈述句或者感叹句中，表示与事实相反的情况，或表示将来不太可能实现的愿望，因此从句中必须用虚拟语气。如:
※ He wished he hadn't said that.他希望他没讲那样的话。
※ How I wish I were as tall as you are.我真希望和你一样高。
本中的half as much其实是倍数的表达法half as much as he showed(比较结构halfi/aquarter/twice/three times+as…as)的缩略表达。如:
I won't marry a man who is twice as old as me.我不会嫁给一个岁数比我大一倍的人。
From:https://www.zgghmh.com/CET-4/20004373.asp