连接词在雅思大作文中的最大的作用就是使雅思大作文的例证更加明显，也是雅思大作文的逻辑顺序更加清晰，也就使大家更容易拿雅思大作文高分。通常情况下，雅思大作文的例证作为论据支撑论点由for example, for instance, like, such as, take… as 等引出，很容易就找到了。
如：it is undeniable that mobile phones have facilitated our lives in many different ways. For example, when an emergency occurs, such as a traffic accident or a violent crime, mobile phones can help the victims to call the police or an ambulance immediately for help.
本例中，for example 引出例子论证“mobile phones have facilitated our lives in many different ways.” 而后面的 such as 则引出emergency 的具体形式。For instance 与它的用法完全相同，即后面要接句子例证。 Like, such as, take…as 等直接名词(或相当于名词的词)。这些看似常识的语法知识才是大家雅思大作文高分的关键，不要因小失大!
为了使连接词多样化，天道专家建议考生运用下面的一些短语(或句式)连接论点和论据：…is a case in point; …serve as a typical example;…can be taken as an example; one example is that… another one is that等。
如：Working part time when you are studying in university is beneficial to your life. I myself is a case in point(or ‘my experiences serve as a typical example’). Through those experiences, I have learned to be independent and responsible.
综上所述，连接词在雅思大作文的例证的列举中起到了非常重要的作用，使大家拿高分有了一个保证。所以大家在平常的练习中要对此熟练掌握，熟练应用。