New words:

encompass [ɪnˈkʌmpəs] v.包含;包围;围绕;围住

前缀 en- = 使… 进入、使… 处于(来自拉丁语 in-,表 “使动”)

必记高频搭配

encompass many areas 涵盖许多领域

The subject encompasses history, art and science.

encompass all kinds of 包含各种各样的

The report encompasses all kinds of examples.

be encompassed by 被…… 包围

The small village is encompassed by green hills.

关键使用提醒:

encompass = include / cover,作文里替换超加分

多用于抽象范围:计划、研究、主题、领域等

New words:

compass [ˈkʌmpəs] n.罗盘;指南针;圆规;

详细词源拆解:

前缀 com- = 一起、共同、完全(来自拉丁语 com-)
词根 pass = 走、步、通过(来自拉丁语 passus 步幅、步伐)
原始含义:一步步环绕、围绕而行 → 包围、环绕

后来引申:

能绕圈画圆的工具 → 圆规
能指示方向、绕定方位的工具 → 指南针、罗盘

整体逻辑:

→ com- (一起) + pass (迈步、伸展)
向四周伸展、环绕 → 圆规 → 指南针 / 罗盘

必记高频搭配

We need a compass to draw a perfect circle.
Without a compass, it is easy to get lost in the forest.
Long ago, sailors used a compass to sail across the sea.


New words:

mariner [ˈmærɪnə(r)] n.水手;海员
submarine [ˈsʌbməˌrin] n.潜艇 adj.海底的


必记高频搭配

the mariner's compass 航海罗盘

The compass is very important for a mariner.

a nuclear submarine 核潜艇

A nuclear submarine can stay under water for a long time.

submarine volcano 海底火山

There are many submarine volcanoes in the ocean

compass[ˈkʌmpəs] n.罗盘;指南针;圆规;

New words:

marine [məˈrin] adj. 海的;海产的;海生的;海船的

详细词源拆解:

源自拉丁语 mare = 海洋;海
拉丁语形容词形式 marinus = 海洋的,与海相关的
进入法语后变为 marin
最终进入英语写作 marine
核心逻辑:与大海、海洋、海生有关的

词汇家族:

marine(海洋的)→ submarine(潜艇;海底的)→ mariner(水手)

必记高频搭配

marine organism 海洋生物;海洋有机体

Whales are large marine organisms.

marine environment 海洋环境

We must protect the marine environment.

marine pollution 海洋污染

Plastic waste causes serious marine pollution.

marine animals/plants 海洋动物 / 植物

Many marine animals are in danger.

New words:

organism [ˈɔrɡəˌnɪzəm] n. 生物;有机体;有机组织;


必记高频搭配

living organism 生物;活体生物

Every living organism needs water and air.

single-celled organism 单细胞生物

A bacterium is a single-celled organism.

marine organism 海洋生物

The sea is full of different marine organisms.

marine [məˈrin] adj. 海的;海产的;海生的;海船的


关键使用提醒:

organism 是可数名词,复数:organisms
常与 living, single-celled, marine, complex 连用
反义词:inorganic matter 无机物