New words:

sure [ʃʊr] adj. 确定的;肯定的;adv. 当然

是核心词根词,直接体现 “确定、无疑问”,日常最常用

如 “be sure of sth”(确信某事)、“Sure!”(当然!)

assured [əˈʃʊrd] adj. 确定的;自信的;n. 被保险人

assure 的形容词 / 名词形式 → 形容词 “确定的、有把握的”,名词 “获得保障的人(即被保险人)

如 “an assured smile”(自信的微笑)、“life assured”(人寿保险被保险人)


必记搭配:

形容词核心搭配:

assured smile(自信的微笑)、assured manner(从容自信的态度)、assured voice(坚定的语气)
be assured of success(确信会成功)、be assured that 从句(确信…)

名词专业搭配:

the assured(被保险人)、life assured(人寿保险被保险人)、assured’s right(被保险人的权利)

动词时态搭配:

assured sb of sth(过去向某人保证某事)、assured sb that(过去让某人确信…)

Sample Sentences:

She is an assured speaker—she never gets nervous on stage.
The teacher has assured the parents of the students’ safety.
The insurance company will pay the money to the assured directly.


New words:

assure [əˈʃʊr] v. 确保;使确信;向… 保证

as- 加强语气 + -sur- 确定 → “强化确定性,消除他人担忧”,侧重 “通过承诺让对方放心”
如 “assure her of safety”(向她保证安全)

必记搭配:

核心搭配(必背):

assure sb of sth(向某人保证某事)
assure sb that + 从句(向某人保证…)

常见宾语搭配:

assure me/you/him/her/them(向我 / 你 / 他 / 她 / 他们保证)
assure customers/parents/students(让顾客 / 父母 / 学生确信)

宾语补足语搭配:

assure sb of safety/success/fairness(向某人保证安全 / 成功 / 公平)
assure sb of a happy ending(让某人确信会有好结果)


Sample Sentences:

My dad assured mom that he would come home early.
She assured me of her support before the competition.


New words:

insure [ɪnˈʃʊr] v. 给… 投保;确保

-sur-(安全、保障)+ 前缀in-(使…)→ “使某物 / 某人处于安全状态”,既指 “投保规避风险”,也指 “采取措施确保安全

必记搭配:

投保场景搭配:

insure a car/house/pet(给汽车 / 房子 / 宠物投保)、insure sb’s health/life(给某人投保健康 / 人寿保险)
insure against accident/fire/theft(投保意外 / 火灾 / 盗窃险)、insure sth for + 金额(给某物投保… 金额)

确保场景搭配:

insure success/safety(确保成功 / 安全)、insure that + 从句(确保…)

动作延伸搭配:

insure with an insurance company(向某保险公司投保)、insure online(网上投保)

Sample Sentences:

I need to insure my new car this week.
Please insure that all doors are locked before leaving.


New words:

insurance [ɪnˈʃʊrəns] n. 保险;保险业;保险费;

“insurance” 的核心词根是 -sur-/-sure-,源自拉丁语 “securus” 意为 “安全的、无担忧的”

“insurance” 由词根 -sur-(安全、保障)+ 前缀 “in-”(使…)+ 后缀 “-ance”(表事物 / 状态)构成,字面意为 “使人获得安全的事物”,本质是 “规避风险、提供保障的手段”。


必记搭配:

具体险种搭配:

health insurance(健康保险)、car insurance(汽车保险)
travel insurance(旅行保险)、life insurance(人寿保险)、house insurance(房屋保险)

动作搭配:

buy insurance(买保险)、get insurance(投保)、have insurance(有保险)
claim insurance(理赔)、provide insurance(提供保险)

介词搭配:

insurance for(给… 的保险,如 “insurance for children” 儿童保险)
insurance against(防范… 的保险,如 “insurance against accidents” 意外保险)

Sample Sentences:

She bought car insurance yesterday.
We need house insurance for our new home.


New words:

vertical [ˈvɜrtɪk(ə)l] adj. 垂直的;竖的;纵向的;n. 垂直线

由词根 -vert-(转动、转向)+ 形容词后缀 “-ical” 构成,字面意为 “转向垂直方向的”,核心词根和 “convert(转变)、reverse(反转)” 同源。

vertically ['vɜːtɪkli] adv. 垂直地;直立地


必记搭配:

基础搭配:

vertical line(垂直线)、vertical surface(垂直面,如墙面)
vertical direction(垂直方向)、vertical position(垂直位置)

日常场景搭配:

vertical garden(垂直花园)、vertical scroll(垂直滚动,如手机上下滑动)、vertical tower(直立的塔)

对比搭配:

vertical and horizontal(垂直和水平的,日常最常用对比组合)

Sample Sentences:

The cliff was almost vertical.
Please draw a vertical line down the middle of the paper.