【题干考查点】细节题。跨国公司使用当地语言的原因是：
【原文定位句】定位段落第五段，定位句为“If these companies want to continue to achieve success on the international trading circuit，they must be prepared to adapt to situations and speak the local language．If not，someone else will．”即：如果公司想要在国际贸易中持续取得成功，就要做好适应环境的准备并且使用当地语言。如果不这样做，那么竞争对手就会这样做。【答案对应点】原文定位句中they must be prepared to adapt to situations and speak the local language．If not，someone else will．与选项A中to prevent other companies taking their business所表达的意思相近。
【干扰项分析】选项B中to help them find new international partners表示帮助公司发现新的国际合伙人，选项C中to meet clients’current expectations表示满足客户的当前期望，而原文中陈述的是such companies are not yet faced with their international partners and clients demanding that business be conducted in their mother tongue；选项D中to become more aware of their competitors’activities表示变得更加关注竞争者们的活动，而原文陈述的是they realize that overseas competition is increasingly fast。