教材单元架构介绍：教材中每单元由3个部分构成。 第一部分以情景化听力任务为驱动的词汇扩展练习（vocabulary　elicitation　driven　by　listening　comprehension）； 第二部分以知识小测验为导入方式的阅读理解任务(reading　comprehension　and　critical　thinking)； 第三部分以第二部分文章相关段落的语言特点为范本，进行相应语法知识的输入，并服务于后续的写作练习(grammatical　knowledgebased　writing　task)。 单元每部分内容排序合理（wellsequenced），依照交际教学法四步骤（P.A.C.E.）和传统结构法三步骤（P.P.P.）方式实现自给自足（selfcontained），即：每个部分中新出现的学习内容（包括词汇知识和语法知识等）可以通过对应部分中的相关练习、任务和活动进行回收循环（recycle）。有些重点词汇和句式亦会在整个单元中重复出现，以期达到强化和加深印象的效果。 本教材选择恰当、地道的科普型语言素材，采用以任务为主的多样化活动设计，注重同一话题的争议性或对话性素材的选取，引导学习者以学科整合的方式来认识世界，提升学生的思辨能力、问题解决能力、同伴合作能力和自我激励能力，以期培养具备科学人文素养、批判思维的专业技术人员。

Unit 1 Climate Change
Learning Objectives
PART Ⅰ Vocabulary & Watching
PART Ⅱ Reading
TEXT A Global Climate Change: What You Need to Know
TEXT B The False Alert of Global Warming
PART Ⅲ Grammar & Writing
Assignment 1
Assignment 2
Unit 2 Smart City
Learning Objectives
PART Ⅰ Vocabulary & Watching
PART Ⅱ Reading
TEXT A Smart Cities: 6 Essential Technologies
TEXT B Key Challenges of Smart Cities & How to Overcome Them
PART Ⅲ Grammar & Writing
Assignment 1
Assignment 2
Unit 3 Population and Society
Learning Objectives
PART Ⅰ Vocabulary & Watching
PART Ⅱ Reading
TEXT A Population Decline Is Bad for Us
TEXT B Population and Sustainability: Can We Avoid Limiting the Number of People
PART Ⅲ Grammar & Writing
Assignment 1
Assignment 2
Information Technology
Unit 4 Learning Objectives
PART Ⅰ Vocabulary & Watching
PART Ⅱ Reading
TEXT A 5G and Wi-Fi 6: What's the Difference, and Where Do They Belong on Campus
TEXT B Stronger Cybersecurity Laws for the Internet of Things
PART Ⅲ Grammar & Writing
Assignment 1
Assignment 2
Unit 5 Nature and Resources
Learning Objectives
PART Ⅰ Vocabulary & Watching
PART Ⅱ Reading
TEXT A Is It Important to Conserve and Protect Biodiversity
TEXT B Why Are Tigers Endangered
PART Ⅲ Grammar & Writing
Assignment 1
Assignment 2
Unit 6 Learners' Autonomy
Learning Objectives
PART Ⅰ Vocabulary & Watching
PART Ⅱ Reading
TEXT A The Rise of Online Classes After COVID-19
TEXT B Why Is Traditional Classroom Learning Better than Online Courses
PART Ⅲ Grammar & Writing
Assignment 1
Assignment 2