關於求職信的語氣該如何把握

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應徵函要發揮最大的效果，語氣必須肯定、自信、有創意而不過份誇張，如能事先洞察僱主的喜好，或其他人格特性，根據物以類聚的原理，應徵函若能配合僱主的特性，求職的人一定可以比其他人佔上風，獲得面談的機會。 比較下列各句語氣上有何不同：

1．I think that I should probably make a good bookkeeper for you. 我想我可能成爲貴公司的好簿記號。

2．I am confident that my experience and references will show you that I can fulfill the particular requirements of your bookkeeping position. 我想信我的經驗和推薦人可以告訴您，我能夠符合貴公司簿記員一職的特定需要。

3．I recently completed a course in filing at the Crosby School of Business. I am competent not only to install a filing system that will fulfill the needs of your organization, but I am also well qualified to operate it efficiently. 最近我在克洛斯比商業補習班讀完一門檔案處理的課程，我自信不僅可以設置一套檔案人類系統符合您的要求，而且可以有效地操作。

4．I feel quite certain that as a result of the course in filing which I completed at the Crosby School of Business, I can install and operate efficiently a filing system for your organization. 我相信在克洛斯比商業實習班修完一門課後，我能夠替貴公司設置並且操作一套檔案分類系統。

第一句顯得語氣太弱，寫信的人有點羞怯的樣子。第二句有特殊風格，第三句太過自信，第四句，作者表示謙虛。