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English for chemists 2

Được đăng lên bởi Anh Tuan
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English for Chemists
lesson 2

GV: Châu Nhật Bằng
Trường: ĐH Bà Rịa – Vũng Tàu

Vocabulary
 Composition: thành phần
- Paraffins
- Naphthenes
- Aromatics
- Asphaltenes
- sulfur: lưu huỳnh
- oxygen, nitrogen, hydrogen
- metal


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


Vocabulary






Classification: phân loại
Sweet oil: dầu ngọt
Sour oil: dầu chua
Heavy oil: dầu nặng
Light oil: dầu nhẹ



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



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…)


Suffixes
 -able, -ible (remarkable, avoidable, memorable,
valuable, divisible..)
 -ed (bored, shocked, pleased…)
 -ing (boring, shocking, pleasing, worrying…)



Plural Noun

-s

1 cat

2 cats

1 ipad
1 cup
1 club

2 ipads
2 cups
2 clubs



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



Plural Noun
Irregular Noun
Man
men
Woman
women
Child
children
Person
People
Mouse
Mice
Datum
data
Nucleus
nuclei
Spectrum
spectra


Grammar of sentences
Clauses

Independent

Dependent

S+V

Subordinator + S + V

Subordinator: if, although, after, before, after, as
soon as, unless, who, which, that, ….


Grammar of sentences

COMPOUND-COMPLEX
COMPLEX

Kind of sentences

COMPOUND
SIMPLE



Grammar of sentences
 Sim...
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English for Chemists
lesson 2
GV: Châu Nhật Bằng
Trường: ĐH Bà Rịa – Vũng Tàu
English for chemists 2 - Trang 2
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