It also summarizes some main theories of bilingual teaching that have been approved by most scholars, such as Think Tank Theory, the Thresholds Theory and Communicative Language teaching Theory.
作者还对已经被大多数学者认可的双语教学的主要理论作了陈述，如：思想库理论、阈限理论和外语交际法教学理论。
Chapter Two briefly introduces cooperative learning, communicative teaching and the second language acquisition theories, which provides the theoretical basis for this study.
第二章对合作学习、交际法教学、二语习得的相关理论进行简述，为本研究奠定理论基础。
Chapter Two briefly introduces cooperative learning, communicative teaching and the second language acquisition theories, which provides the theoretical basis for this study.
第二章对合作学习、交际法教学、二语习得的相关理论进行简述，为本研究奠定理论基础。
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