形容词sure是英语学习中的基本词汇，也是口语和书面语中常常遇到的单词。在英语考试中，它常出现在完形填空、选项题中。在这个单词的学习中，我们首先要掌握这个词的常用意义，更重要的事它的常见短语需要会用。现就其常见意思、常用短语进行归纳。
1.sure指“确信的，有把握的”。比如：
You don't sound very sure.听你这口气，你自己也不大肯定。I'm pretty sure (that) he'll agree.他会同意的，对此我有相当的把握。Are you sure you don't mind?你确实不在意？
2.sure表示“一定的，必定的”。比如：
With over 80 beaches to choose from, you are sure to find a place to lay your towel.有八十多个海滩可供挑选，你一定能找到一个晒日光浴的地方。You're always sure of a warm welcome there.到了那里你肯定会受到热烈欢迎。
England must win this game to be sure of qualifying for the World Cup.英格兰队必须拿下这场比赛才能确保获得世界杯的参赛资格。The exhibition is sure to be popular.这一展览肯定受欢迎。
3.sure表示“可靠的，稳妥的”。比如：Sharpe's leg and shoulder began to ache, a sure sign of rain.夏普的腿和肩开始痛了，这是要下雨的准确迹象。The doctors and the scientists haven’t found a sure remedy for cancer now.现在,医生和科学家们还没有找到医治癌症的良药(可靠的药)。
4.常考短语
make sure可以表示“查明,弄确实；务必”两个意思。比如：Make sure that you follow the instructions carefully.一定保证你认真遵循这些用法说明。Make sure (that) no one finds out about this.绝对不要让任何人发觉这件事。
He looked in the bathroom to make sure that he was alone.他往那间浴室里看了看，以核实那就他一个人。I think the door's locked, but I'll just go and make sure.我觉得门已经锁上了，不过我还是去看看好放心。
