they can give the students more knowledge about new academic words through the reading texts, especially by using authentic materials. According to the
understanding of the English teachers in SMA Negeri 1 Wonosari, the twelfth grade students in science class have better mastery of vocabulary than the students
in social class. Vocabulary tests in the teaching learning processes are not done specifically, they are integrated with the other skill tests, such as in reading,
writing, speaking, and listening test.
1.6.2 Vocabulary Mastery
According to Young 2007, vocabulary is a study of the word meanings, how to use the words, and root words and the affixes. Based on Lehr’s opinion
2001, the more the students read various texts or books, the more the students obtain new vocabulary items and know or understand many new words from
academic text books and they will be able to comprehend the content of the reading texts better. In this research, vocabulary means the words and word
meanings mastered by the EFL learners, especially the twelfth grade students in senior high school. Mastery in this context means the ability to understand the
meaning of the vocabulary items that they have learned in academic study.
1.6.3 Academic Words
Academic words are in the second level of learning vocabulary after high- frequency words Nation, 1990. Academic words are only found in academic
discipline, such as in junior high school, senior high school, and in the university. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI
Senior high school students are in the beginner level and they should be able to master 570 up to 800 academic words that often occur in the learning materials for
the beginner Nation, 2002. There are some examples of academic words that often occur in reading texts: approach, brief, comply, disposal, evident, etc.
1.6.4 English Productive Skills
Nunan 2003 states that in language teaching, there are four skills described in terms of their definition, i.e. productive and receptive skills.
Productive means language generated by the learners in speech or writing and receptive means language directed at the learners in reading or listening.
According to Nunan 2003, speaking is productive oral skill and writing is the physical act of committing words or ideas to some medium, such as handwritten
or typed into a computer. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI
