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Intrigue students’ interests

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cater to students‘ needs

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More suitable for students’ specific needs

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Save time, provide them with guidelines and inspiration of how to teach

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based on students’ needs and provide them with a more suitable teaching content

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Solve some problems which teachers have met during their teaching.

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Up to date

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Pay attention to the local culture
Develop intercultural competence

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accommodate to the changing policy

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Better to achieve the teaching goals

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compare and contrast various materials in order that teachers Can find the most suitable one

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materials could be a guidence for students. One fixed textbook cannot suitable for all kinds of students, so, teacher should improve it according to different students.

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The development of new material can update knowledge and information to adapt to the  advancement of the society and culture.

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Add some new findings of researchers.
Policies may have changed. So the textbook have to fit these.
The development of other fields may affected the content of textbook.

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suit for new technology development

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Suit our students' needs and levels better

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To adapt for changed knowledge and discoveries

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To improve language teaching adjusted to different proficiency of students

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compete with colleges

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Different levels of the English learners need new materials to meet their needs

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adopting new pedagogy e.g. grammar translation to communicative

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Adapt to the changing requirements of the exams

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Offer students more updated information and knowledge.

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improve the effectiveness of the use of the textbook

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Sometimes the content of low level have changed, so the high level have to change too.