【单元教学设想】宏观世界,气象万千;微观世界,奥妙无穷。本单元,编者用通俗而科学的文字,揭示了大自然语言的独特、克隆技术的神奇、恐龙灭绝的奥秘、生物入侵的危害、声音世界的微妙,既增长见识,又启迪智慧。学习本单元,要求:1.知识和能力维度——能用正确的语音语调阅读科学 [Unit teaching ideas] the macro-world, meteorology; micro-world, infinite mystery. In this unit, the editors used popular and scientific texts to reveal the unique nature of natural language, the magic of cloning technology, the mysteries of the extinction of dinosaurs, the dangers of biological invasion, the subtleties of the sound world, and the growth of knowledge and enlightenment of wisdom. Studying this module requires: 1. Knowledge and ability dimensions - Ability to read science with correct phonetic intonation