隨著網路的發展，人們的閱讀習慣和閱讀行為一直不斷的進化與改變。過去的研究指出在這數位化的年代，更多的網路閱讀習慣的研究需要再進一步的進行與更新，以便英語教育者更加了解英文學習者如何使用網路幫助他們的英語學習。本研究欲探討大學生如何運用網路幫助他們的英語學習，此研究主要探索大學生英文網路閱讀的習慣以及他們對於英文網路閱讀的觀感。此外，此研究更進一步探討大一學生和大四學生在英文網路閱讀及觀感上是否有差異。 本研究採取質性研究，以北台灣兩所大學為例，參加本研究的學生一共有四十九位學生，分別有二十五位大四英文系學生以及二十四位大一英文系學生。資料收集主要採用焦點團體訪談的方式，以半結構式的方談方式採訪了十八組學生。學生的訪談資料收集後，將訪談內容轉為逐字稿以進行內容分析。 本研究主要發現，學生上網閱讀英文的主要目的是完成學校作業。學生喜歡在網路上閱讀和課業有關的文章、比較聳動以及容易記住、輕鬆的文章主題（例如：休閒活動和藝術）。學生也喜歡在網路上挑選比較簡短、比較具有信賴度和權威性的文章閱讀。根據網路上各種英語學習資源以及學生所提供的資料來分類，本文中整理出學生經常使用的英文學習網站，以供參考。此外，在網路上閱讀英文時，學生比較有動機閱讀有多媒體呈現的文章內容。當在網路閱讀英文時，遇到閱讀理解有問題，學生通常利用線上網路字典或是網路即時翻譯的功能，以幫助他們對文章的理解。 學生提出在網路閱讀英文有些缺點，包含缺乏靈活性、容易分心和迷失方向、提供過多的資訊、缺乏人體工學的考量。此外，學生也提出網路閱讀的優點。學生認為在網路閱讀可以讓他們省時、省錢的得到資訊、得到快速更新的資訊以及其他人的觀點、得到不同形式的資訊、與他人溝通、製作自己的閱讀檔案、增進英文學習、同時處理很多事務。學生也提出一些建議給有意願使用網路教學的的老師，以便老師能夠了解他們的真正的需求與困難。例如，他們希望老師能夠推薦他們有用的網站、教導他們網路搜尋技巧、並且能夠將網路的使用真正的融入課堂中。 本研究也發現大一學生和大四學生在網路閱讀習慣及觀感最主要的相異之處在於大四學生比大一學生習慣將英文融入他們的日常生活中，以便他們透過網路來增加學習英文環境的機會。此外，大四學生比較能夠有技巧性地運用網路資源，以解決他們在網路閱讀上遇到的問題。相反地，大一學生仍然需要老師教導他們一些技巧來解決在網路上閱讀所遇到的問題，以及教導他們如何分辨可信賴和不可信賴的網站。 希望本研究的發現可以讓教育者瞭解大學生如何使用網路來幫助他們的英語學習，以及網路的使用如何影響他們的閱讀習慣。文末進一步提出相關建議，作為教育學者們教學上的參考。 / With the advancement of the Internet, people’s reading habits and behaviors have been evolving and reshaped. Previous studies indicated that more research on reading habits in this digital age is necessary to be further investigated and updated to eke out EFL educators’ understanding of EFL learners’ uses of the Internet to facilitate their English learning. This study attempts to explore how undergraduate students use the Internet to facilitate their English learning by delving into their habits and perceptions of reading English on the Internet and whether there is any difference between undergraduate freshmen and seniors. The present study adopted a qualitative research method. The participants are forty-nine EFL English major undergraduates with twenty-five seniors and twenty-four freshmen from two universities in northern Taiwan. The major way to collect data is focus group interviews, which are semi-structured interviews with eighteen focus interview groups of the participating students. The interview data were transcribed in verbatim and analyzed in accordance with content analysis method. The major findings of the habits of reading English online revealed that the participants basically held positive attitude towards and grew into the habit of reading English on the Internet. They read English online for the purpose of doing schoolwork and they preferred reading contents related to their courses, with light topics such as leisure and art, with sensational and catchy topics, in short length, or with more reliability and authority. The English learning websites that the participants usually went to were also provided for pedagogical references. Moreover, the participants were much more motivated to read English online when the reading contents were accompanied with multimedia. Upon facing reading comprehension problems, they usually turned to online dictionaries or online instant translators to improve their understanding of the contents they were reading on the Internet. The students’ perceptions of disadvantages of reading online included inflexibility, distraction and disorientation, oversupply of information, and lack of ergonomic concerns. Apart from the disadvantages of reading English on the Internet, the participants put forth a number of valuable merits of reading online, including time and cost saving in gaining information, gaining rapidly-updated information, others’ perspective, accessing information in divers forms, interacting with others, making documents, benefiting English learning, and multitasking. As for the suggestions made to the teachers intending to integrate the Internet use into classes, the participants hoped that teachers could recommend them useful websites, teach them search skills, and infuse the Internet into the classroom setting. The major findings of the differences between the seniors and the freshmen were that the seniors were more accustomed to incorporating English language into their daily lives in order to increase more chances to immerse themselves in English learning environments through the Internet than the freshmen. In addition, the seniors were more resourceful in using the Internet to help themselves with problems they met while reading online. Contrarily, the freshmen still needed teachers’ training on how to solve their reading comprehension with more methods and on how to distinguish reliable websites from incredible ones. Finally, it is expected that the findings of this study can provide educators with more understanding about how undergraduates utilize the Internet to facilitate their English learning and how their reading habits are influenced by the widespread use of the Internet. Besides, a number of pedagogical implications and instructional suggestions are presented at the end of this thesis for educators’ teaching references.