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Effects of Graded Texts on EFL College Students' Incidental ...

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learning to occur.<br />

2. Word meaning search activity could result in word acquisiti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> more quality,<br />

hence, search access should be provided for learners while reading.<br />

3. Gloss, especially computerized gloss is generally effective in bridging the gap<br />

between L2 text and the L2 learners’ limited cultural and lexical knowledge.<br />

Given technical difficulties and learners’ limited mental capacity, however, textual<br />

gloss is regarded as more feasible for computerized extensive reading<br />

envir<strong>on</strong>ments.<br />

2.3. Vocabulary Acquisiti<strong>on</strong> with Word Lists<br />

Preliminary to discussing word list uses in vocabulary teaching, the salient term,<br />

word family, needs to be defined first. A word family is a group <str<strong>on</strong>g>of</str<strong>on</strong>g> words which<br />

have the same morphemic stem. It c<strong>on</strong>sists <str<strong>on</strong>g>of</str<strong>on</strong>g> a headword, its inflected forms such<br />

as plural, past tense, and comparatives; and its closely related derived forms such as<br />

words which are derived by adding affixes –ly, -ness, or un- to the headword (Nati<strong>on</strong>,<br />

2001). In other words, items within a comm<strong>on</strong> word family would have various<br />

surface forms due to inflecti<strong>on</strong>al or derivati<strong>on</strong>al affixati<strong>on</strong>. Word families are <str<strong>on</strong>g>of</str<strong>on</strong>g>ten<br />

used as frequency counting units in word lists.<br />

The significance <str<strong>on</strong>g>of</str<strong>on</strong>g> developing learners’ mental lexic<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> an adequate<br />

vocabulary c<strong>on</strong>sisting <str<strong>on</strong>g>of</str<strong>on</strong>g> high frequent words was repeatedly emphasized by<br />

researchers in sec<strong>on</strong>d language learning (Carter & McCarthy, 1988; Cobb & Horst,<br />

2001; Ky<strong>on</strong>gho & Nati<strong>on</strong>, 1989; Nati<strong>on</strong>, 2001). It was estimated that the most<br />

frequent 1000 word families <str<strong>on</strong>g>of</str<strong>on</strong>g> English, including words such as put, end, come and<br />

difficult, <str<strong>on</strong>g>of</str<strong>on</strong>g>fer a coverage <str<strong>on</strong>g>of</str<strong>on</strong>g> approximately 75% in any text (Cobb & Horst, 2001).<br />

Apparently, the return for learning a core vocabulary c<strong>on</strong>sisting <str<strong>on</strong>g>of</str<strong>on</strong>g> the most frequent<br />

words is significant. Based <strong>on</strong> the assumpti<strong>on</strong> that learning burden could be<br />

10

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