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talk; children
learn
to talk the surrounding language and use other speakers
as their testing devices for their own emerging ideas about language (Daniels,
2008: 4).
The acquisition of a second language, on the other hand, may be a
complex process. In learning a second language, the words do not come
naturally and therefore they have to be taught. Second-language learners probably
need to know several thousand word families (Ur, 2012: 64). The term
word family
means a word and all its morphological variants. The forms
need, needs, needed,
and
needing
count as a single word and also derivations of the base word, e.g.
needful
and
necessity
should be included in the word family (Ur, 2012: 2, 3, 7, 63,
64). Researchers today generally agree that in order to understand a text, one
needs to be able to understand between 95% and 98% of its words. Thus, one of
the important parts of learning a second language is acquiring vocabulary. A
learner never finishes this learning process because the acquisition of new
vocabulary is an ongoing process . The importance of vocabulary is also
mentioned by Wilkins who said that “without grammar very little can be
conveyed, without vocabulary nothing can be conveyed.” Furthermore, Ur
claims that it is important for students to use English both fluently and correctly
in order to get the message across effectively while using standard lexical
conventions. By lexical conventions Ur means e.g. a group of words like
post office
or expressions, like
in any case
.
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