(含答案)
1. International aid helps many people around the world to have better lives, especially when things go wrong.
国际援助帮助世界上的许多人过上了更好的生活，尤其是当情况变得糟糕的时候。
go wrong 出毛病，发生故障；变糟，变坏
go 的用法：go 在此处充当系动词，后加形容词做表语，表示变化（通常是由正常变为不正常，好变成坏）。
拓展： go deaf 变聋 go blind 变瞎
go sour 变酸 go pale 变苍白
go mad 变疯 go bad 变质
eg. 1) To my surprise, something has gone wrong with the engine.
使我吃惊的是，发动机出毛病了。
2) She went pale at the news. 听到那消息她的脸色变得苍白。
3) Eggs go bad easily in summer. 夏天鸡蛋容易变坏。
4) He went blind after the accident. 这次事故后，他的眼睛就瞎了。
2. Being a Goodwill Ambassador means that I visit countries where the UN operates programs to help people.
作为一名亲善大使意味着我要访问那些联合国采取行动帮助其人民的国家。
operate vt. 使用，使……运转（系统、项目、服务等）
eg. 1) The government operates a new system for assisting the old people.
政府制定了一个新的制度来帮助老年人。
2) Machines are operated by electricity. 机器靠电开动。
operate vi 动手术 operate on …
eg. The doctor operated on his chest yesterday. 昨天医生给他的胸部动了手术。
operation n. 军事行动；手术；操作，实施。
eg. 1) The army received an order to put off the operation. 部队接到命令要推迟行动。
2) The operation of the machine is simple. 这台机器的操作很简单。
3) You’d better examine the engine regularly to guarantee its smooth operation.
你最好经常检查引擎以保证它能正常运转。
4) He is very ill and needs an operation. 他病得很重，需要做手术。
3. I’m pleased to have this chance today to talk to you about the United Nations or the UN, as it is more often referred to.
我很高兴今天有机会同大家谈谈联合国的情况，联合国被称为UN.
refer to: 1) 提交，交付； 2）求助，查询； 3）参照，参阅；