period four导
学案 重庆大学版选修6 1.vt.(1)warn sb. of/about sth. 提醒、警告某人注意某事(2)warn sb. not to do sth. 警告某人不要干某事 =warn sb. against doing sth. (3)warn that clause 提醒某人... vi.(4)warn against doing sth. 告诫某人不要做某事 they warned him of the danger. 他们警告他有危险。 he warned me not to go out alone at night. =he warned me against going outside alone at night. = he warned that i couldn’t go outside alone at night. 他提醒我晚上不要单独出去。