1、几个词的辨析
一、 environment and surroundings
environment : 环境，周围状况， 自然环境，社会环境 （including the emotions of the people there ）
Surroundings 狭义的环境，仅只周围的具体的物质性的东西 ,侧重生活、居住的周围环境。( such as trees , buildings , cars etc. )
e. g. The students live happily in beautiful surroundings .
environment 则指对人的成长、情感、观念、
2、伦理、道德、品行等产生影响的环境，意义宽泛，延伸到人类活动的各种领域。
优美的周边环境：beautiful surroundings
幸福的家庭环境：happy home environment
遗传和环境，发展和环境,破坏或保护环境，只能用environment
International environment , economic / cultural / social / investment / language / learning / political environment
二、produce , product , production
Product
3、 ( 天然或人造的) 产品，生产物 farm products 农产品
Produce v. 生产，制造
production n. 1. 生产，制造 the production of crops 农作物的生产
2. 产量 【 U 】e. g. increase production by using better methods and tools a fall in production 产量减少
3. 制造品 生产品 his early productions as a writer
*** adj. productive
4、能生产的，肥沃的
n. productivity 生产力，生产
三、 introduce
1. introduce sb to sb 介绍认识 Allow me to introduce Mr. Green to you .
2. introduce in / into 采用，引进，提倡，使（某人）认识某人
e. g. introduce new ideas into a business
The teacher introduced his young pupils to the intricate biology.
3. introduce into 插入， 引入
四、staff 全体职员、 全体工作人员 既可看成整体，集合名词，谓语单数； 也可看成个体，谓语用复数
e. g. A large staff of advisers has been employed for the President . 总统已任用许多顾问。
The school staff are expected to improve the salary .
the headmaster and his staff 校长和全体教师 office-staff 办公人员
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