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Tiếng anh cho nhà hóa học

Tài liệu tiếng anh giúp các nhà hóa học nâng cao trình độ tiếng anh, hiểu sâu hơn các kiến thức, các ký hiệu hóa học nhằm phục vụ cho công tác nghiên cứu | English for Chemists lesson 2 GV: Châu Nhật Bằng Trường: ĐH Bà Rịa – Vũng Tàu www.themegallery.com Vocabulary Composition: thành phần - Paraffins - Naphthenes - Aromatics - Asphaltenes - sulfur: lưu huỳnh - oxygen, nitrogen, hydrogen - metal www.themegallery.com Vocabulary Characteristics: tính chất Density: tỉ trọng API (American Petroleum Institute) gravity: độ API Sulfur content: nồng độ lưu huỳnh Viscosity: độ nhớt Pour point: nhiệt độ đông đặc Salt content: nồng độ muối www.themegallery.com Vocabulary Classification: phân loại Sweet oil: dầu ngọt Sour oil: dầu chua Heavy oil: dầu nặng Light oil: dầu nhẹ www.themegallery.com Vocabulary OPEC Organization of Petroleum Exporting Countries IUPAC: International Union of Pure and Applied Chemistry SI:International System of Units (Système International d’unités) Barrel (bbl): 1bbl= 42 US gallon=159 liters www.themegallery.com Grammar of sentences Clauses Clauses are the building blocks of sentences. A clause is group of words that . | English for Chemists lesson 2 GV: Châu Nhật Bằng Trường: ĐH Bà Rịa – Vũng Tàu www.themegallery.com Vocabulary Composition: thành phần - Paraffins - Naphthenes - Aromatics - Asphaltenes - sulfur: lưu huỳnh - oxygen, nitrogen, hydrogen - metal www.themegallery.com Vocabulary Characteristics: tính chất Density: tỉ trọng API (American Petroleum Institute) gravity: độ API Sulfur content: nồng độ lưu huỳnh Viscosity: độ nhớt Pour point: nhiệt độ đông đặc Salt content: nồng độ muối www.themegallery.com Vocabulary Classification: phân loại Sweet oil: dầu ngọt Sour oil: dầu chua Heavy oil: dầu nặng Light oil: dầu nhẹ www.themegallery.com Vocabulary OPEC Organization of Petroleum Exporting Countries IUPAC: International Union of Pure and Applied Chemistry SI:International System of Units (Système International d’unités) Barrel (bbl): 1bbl= 42 US gallon=159 liters www.themegallery.com Grammar of sentences Clauses Clauses are the building blocks of sentences. A clause is group of words that contains a subject and a verbs Ex - chemistry is a science - when the first oil well was first drilled in 1859 These are not clauses: - after drilling the first oil well - to produce kerosene Prefixes Un- ( uncomfortable, uncountable, unemployed, unhappy, unlucky, unprofessional, unknown, unusual, unwell ) In-( incorrect, inactive, inconvenient, indirect, invisible ) Dis-(dishonest, disorder, disbelief, dislike, disagree ) Ir-, il-, im- (irregular, irresponsible, illegal, illogical, impossible, impolite ) www.themegallery.com Suffixes -able, -ible (remarkable, avoidable, memorable, valuable, divisible) -ed (bored, shocked, pleased ) -ing (boring, shocking, pleasing, worrying ) www.themegallery.com Plural Noun -s 1 cat 2 cats 1 ipad 2 ipads 1 cup 2 cups 1 club 2 clubs www.themegallery.com Plural Noun -ES when noun end with one of these sounds s z ch sh dg 1 page 2 pages 1 box 2 boxes 1 lunch 2 lunches www.themegallery.com Plural Noun Irregular Noun Man men Woman women Child children Person