考研英语标点符号作用:2018考研英语标点符号解密：冒号用法面面观

1、解释说明
　　例1：The English teacher wants just one thing from us: that we try our best. (英语老师只希望我们做到一点：全力以赴。)
　　例2：May I offer you a suggestion: don't drive without your seat belts fastened. (给你一个建议：开车一定要系安全带。)
　　2、承接因果
　　例1：I turned to look at the children, but there weren't any in sight: they had all run away. (我转过头去看那些孩子，他们却全无踪影：他们都跑光了。)
　　例2：We found the place easily: your directions were perfect. (我们找到这个地方毫不费力：你的导航太棒了。)
　　3、举例或罗列
　　例1：There are only two tragedies in life: one is not getting what one wants, and the other is getting it. (人生的悲剧有两种：一种是得不到自己想要的，一种是得到它。)
　　例2：For our camping trip, I brought various essential items: a lantern, a sleeping bag, food, water, and a flashlight. (关于露营，我带了各种必备品：一盏灯，一个睡袋，食物，水，还有一个手电筒。)
　　4、用于引用
　　例1：The professor said: "It was horrible."(教授说："这太可怕了。")
　　例2：In his most famous speech, he said: all men are created equal and must enjoy the equal rights that are given by God. (在他最的演讲中，他说：人人生而平等，必须享受上帝赋予的平等权利。)
　　5、隔开正副标题
　　例1：Web Directory: World and Non-U.S. Economic Data(网络目录：世界与非美国经济数据)
　　例2：Math Application: Using Calculus to Determine the Age of Rocks (数学应用：利用微积分测定岩石年龄)
　　6、用于正式信件的称呼后(美式)
　　例1：Dear Mr. Lee: We were very honored to have you come visit our company. (亲爱的李先生，非常荣幸您来我公司参观考察)
　　7、表示时间
　　例1：The train is to leave at 4:45 pm. (火车下午4:45开)
　　8、表示比例
　　例1：The proportion of men to women is 3:5. (男女比例是3:5)

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