Unit 7 知识点、语法详解 2022-2023学年人教版八年级英语下册

unit 7 What’s the highest mountain in the world? 1. deep 深的,纵深的 形容词deep常作表语和定语,还可表示“深呼吸” The water is very deep,don’t get close to it.水深勿靠近 Relax and take a deep breath. 放松然后深呼吸 deeply是其副词,表示“深深地”常用来修饰动词作状语 This story touched me deeply.这个故事深深地感动了我 英语中表达物体长、宽、高、深的方式: 1) 基数词+单位词+形容词(long、wide、high、deep等) 2) 基数词+单位词+in+名词(length、width、height、depth等) The river is 20meters wide=The river is 20 meters in width. 这条河20米宽 2. population 人口 该词为集体名词,作主语时谓语动词用单数,表示用多少人口时用: the population of+地点=地点+have/has a population of+基数词 China has a population of about1.4 billion.= The population of China is about 1.4 billion.中国大约有14亿人口 询问人口时用:what’s the population of+地点 What’s the population of Henan?河南的人口有多少? 形容人口多或少时,用big/large、small修饰population,不能用many、much、few India has a large population.印度人口众多 3. amazing令人惊奇的 In autumn,leaves fall down and it makes an amazing scene. 秋天树叶凋零,形成令人惊叹的景象 amazed“大为惊奇的”表示人的感受,主语通常是人 常构成短语:be amazed at“对...感到惊讶” I am amazed at his progress.我对他的进步感到惊讶 4. protect 保护,防护 常作及物动词,常构成protect...against/from“保护...免于...” He wears sunglasses to protect his eyes from the strong sunlight. 他戴着太阳镜以保护眼睛不受强光伤害 protection是其名词形式 environment protection 环境保护;under the protection of..在..的保护下 5. feel free 随便做某事 feel free to do sth相当于make oneself at home“自便” I made lots of sweets,feel free to eat whatever you like. 我做了很多甜点,喜欢吃什么就吃什么 6. thick 厚的,浓的 该词常用来修饰头发thick hair浓密的头发、修饰森林a thick forest 茂密的森林、修饰烟雾thick fog 浓烟 反义词为thin“薄的,淡的,瘦的” The birds flew through thick fog.鸟群飞过浓烟. 7. include 包括,包含 及物动词,有时也会以被动语态的形式出现即:included,常放在句末 构成be included in结构 The performance includes a dance and a magic show. =A dance and a magic show are included in the performance. 这场表演包含一个舞蹈和一个魔术表演 including是其介词形式,意为“包括..在内”后跟名词或代词作宾语 There are many kinds of fruits on the table,including apples. 桌子上有很多种水果,包括苹果在内 8. freezing 冰冻的,寒冷的 形容词freezing常用来修饰名词作定语,也可作表语修饰天气 It is freezing outside.外面冰冷刺骨. freeze是其动词意为“结冰”过去式是froze,过去分词为frozen The water will freeze if the temperature drops below zero degree. 水在零度以下会结冰 9. con