boast
1.boast和boast of略有不同。boast是“自夸…”，它的宾语是具体的东西。例如：The village boasts an old tower。boasts of是“因…而自夸”，它的宾语往往是抽象的东西。例如：He boasts of his scholarship. boast of用作“自夸…”解也可以，但不及boast普通。
2.注意He boasts himself more clever than his brother里在more前面没有as。有时有to be。
3.boast后面可接以that引导的从句。例如：He boasts that he is more clever than his brother.
