1. hospitality n. 好客
cordial hospitality 盛情接待
I received the hospitality of the family.
我受到这家人亲切的款待。
2. immerse v. 沉浸于
She immersed herself in English.
她让自己沉浸于英语的世界中。
3. implicit a. 内含的;含蓄的
Her attitude was implicit in the answer she gave us.
她在给我们的答复中态度是含蓄的。
4. impulse n. 冲动
She bought the dress on impulse.
她一时冲动买了这件衣服。
5. incidence a. 发生率
Each incidence of truancy will impact the citizenship credit.
每发生逃学事件都会影响公民的信用。
6. indignant a. 愤怒的
词义辨析：indignant, angry, mad
indignant: 侧重愤怒是有充分理由和正当的。
angry: 侧重以愤怒的表情、激烈的言辞或威胁的目光等来表达感情。
mad: 多用于非正式文体和讲话中，与angry意义相近。
People are indignant by their shooting of innocent civilians.
对于他们枪杀无辜平民，人们感到义愤填膺。
7. infectious a. 传染的
词义辨析：infectious, contagious
infectious: 修饰的是“间接传染的病”，指病菌通过空气、食物、水、衣服、容器等物的传染。
contagious: 修饰的是“直接传染的病”，一般指跟病人直接接触而感染的病。
Tuberculosis is an infectious disease.
肺结核是一种传染病。
8. ingenious a. (人)灵巧的;(设计等)巧妙的
ingenious handicraftsman 灵巧的手工艺人
By dint of this ingenious scheme, his gloves were got on.
靠这种巧妙的方法，他那副手套终于戴上了。
9. inherent a. 固有的
the inherent defects of planned-economy 计划经济固有的缺陷
It suffers from an inherent and irreparable weakness.
它有着固有的，无法弥补的弱点。
10. initiate v. 开始;发起
initiate a new plan 开始新计划
The company initiated a management training program for small businesses.
该公司发起了针对小企业的管理培训方案。