人教版英语教材八年级下册Unit 4单元核心内容梳理及导图

人教版英语教材八年级下册Unit 4单元核心内容梳理

Unit 4 The Wonders of Nature

一、核心词汇梳理

wonder, measurement, square kilometre, below, level, surface, depth, dive, research, vessel, unusual, bottom, waterfall, civilization, means, development, desert, cubic, mile, pool, climber, northern, distance, survive, condition, degree, cliff, changeable, death, determined, above, teammate, shoulder, bit by bit, ladder, measure, successfully, risk, curiosity, ambition, explorer, simply, risky, southern, located, freshwater, type, attract, curious, traveller, natural, underwater, northeastern, coast, coral, reef, include, sand, alive, structure, snorkel, school, turtle, lifetime

二、单元短语必背  

because of, feel like, in high spirits, at the top, at the start, at the end, such as, from... to..., all over, around the world, rush hour, work out

三、必备句型精讲

1. What's the highest... in the world? – It's...  

2. How high/deep is it? – It's... metres high/deep.  

3. It's one of the greatest wonders of the world.  

4. Why do people risk their lives to...? – Because...

四、单元语法详解

1. 形容词和副词的比较级、最高级（复习）  

2. 大数字的表达  

3. 连词so... that, although 引导结果和让步状语从句

五、单元写作指导  

写一篇自然奇观的广告或介绍，描述其特点、位置和意义。  

写作提示：使用比较级和最高级进行对比，准确表达大数字。