essential

【发音】

美 /ɪ'sɛnʃl/ 英 /ɪˈsenʃl/

【翻译】

1. adj.必须的；本质的

   英释:extremely important and necessary

【记忆】

es ＋ sent(感觉) ＋ ial(…的) → 必要的感觉 → 必要的

【短语】

1. essential oil : 香精油，精油

2. essential condition : 必要条件

3. essential hypertension : 原发性高血压；特发性高血压

4. essential element : 必需元素

5. essential component : 主要部件；主要成分

6. essential difference : 本质区别

7. essential requirements : 基本要求；基本规范

8. essential amino acid : 必需氨基酸

9. essential nutrients : 基本营养物；必需营养素（essential nutrient的复数形式）

10. essential qualities : 固有性；本质（essential quality 的复数）

11. essential point : 本质点

12. essential information : [计]基本信息

13. be essential for : 对…必不可少的

14. essential drugs : 基本药物

15. essential mineral : 知矿物；主成份矿物；基本矿物

16. essential fatty acid : 必需脂肪酸

17. essential parameter : 基本参数；本质参数

18. essential water : 组成水份

19. essential goods : 主要货物；必需品

【例句】

1. Window locks are fairly cheap and absolutely essential.

   窗锁相当便宜，绝对有必要安装。

2. Even in small companies, computers are an essential tool.

   即使在小公司里，计算机也是不可或缺的工具。

3. The essential difference between Sam and me was the fact that I took life seriously.

   我和萨姆的根本区别在于我是认真对待生活的。

【真题例句】

1. (2017.12 • CET4 • • 阅读理解)...and essential work skill...

2. (2017.12 • CET4 • 第二套 • 阅读理解)...curiosity is essential to one's success...

3. (2014.6 • CET4 • 第二套 • 阅读理解)...But crying as an expression of feeling is tmique to humans and has played an essential role in human evolution and the development of human cultures...

4. (2014.6 • CET4 • 第二套 • 阅读理解)...Our ability to experience sympathy is essential to the development of civilization...

5. (2014.6 • CET4 • 第二套 • 阅读理解)...tears have developed an essential role in social relationships...

6. (2014.12 • CET4 • 第三套 • 阅读理解)...computer-aided design has become essential but in some ways has cheapened the design process...

7. (2013.12 • CET4 • 第二套 • 阅读理解)...and yet strangely we worry when we see families investing so much in this supposedly essential good...

8. (2011.12 • CET4 • • 阅读理解)...It is essential that we act with integrity in order to build the kind of world in which we want to live...

9. (2011.12 • CET4 • • 阅读理解)...Trust is essential in any important relationship...

10. (2010.12 • CET4 • • 阅读理解)...It is essential to our well-being...

11. (2009.6 • CET4 • • 阅读理解)...it is becoming essential to expand our under-standing of others and to reexamine some of our false assumptions...

【同、近义词】

1. adj.基本的；必要的；本质的；精华的

   elementary/fundamental/basic/necessary/primary/

2. n.本质；要素；要点；必需品

   element/principle/entity/necessity/requirement/texture/

【同根词】

1. adv

   essentially : 本质上；本来

2. n

   essence : 本质，实质；精华；香精

   essentiality : 重要性；本质；真髓；根本性