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托福雅思口语太难？快来和安迪一起学习地道的美语来征服雅思托福口语吧！欢迎大家留言评论以及订阅节目哦！今日话题：What are the benefit and drawback of using robots? Please include details in your answer. 解题方案：好坏对比法+5Ws+ Effects解题思路：5Ws+ResultWhat is the benefit of using robots?Andy: It can save lives.When?Where?Who invented What?Andy: Recently, doctors from the US have invented nanorobots（纳米机器人).Why do we use it?Andy: Coz it can do some jobs that humans cannot do.What can they do?Andy:   First, they can go into the bloodstream（血液） and produce some chemicals（化学物质） to identify （识别）and fight against some diseases like cancer（癌症）, tumor （肿瘤） or viruses （病毒）.             Also, it can be used to repair DNA, RNA and some cells（细胞）.What is the effect? Andy:  It will save millions of lives.What is the drawback of it?Andy: It might replace lots of workers in the factory, since it’s really cheap and efficient, thus human labors will lose jobs. So in order to keep people employed, we won’t allow robots to take over the world. 示例答案Well, the benefit of using robots is that it can