Tiếng anh cho nhà hóa học doc
Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (302.57 KB, 17 trang )
LOGO
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 People
Mouse Mice
Datum data
Nucleus nuclei
Spectrum spectra
www.themegallery.com
www.themegallery.com
Grammar of sentences
Subordinator: if, although, after, before, after, as
soon as, unless, who, which, that, ….
Independent
S + V
Clauses
Dependent
Subordinator + S + V
www.themegallery.com
Grammar of sentences
Kind of sentences
COMPOUND-COMPLEX
COMPLEX
COMPOUND
SIMPLE
www.themegallery.com
Grammar of sentences
Simple sentence
A simple sentence is one independent clause
Ex:
- I enjoy playing tennis with my friends every weekend
- I enjoy playing tennis and look forward to it every weekend
- My friends and I played tennis and went swimming this weekend
www.themegallery.com
Grammar of sentences
Compound sentence
A compound sentence is two or more independent
clauses joined toghether
3 ways
1. Coordinator I enjoy tennis, but I hate
golf.
2. Conjunctive
adverb
I enjoy tennis; however, I
hate golf.
3. Semicolon I enjoy tennis; I hate golf.
www.themegallery.com
Grammar of sentences
Coordinators Conjunctive
adverbs
Sentence
and moreover
besides…
You study English at school;
moreover, you should watch TV in
English at home.
but however
nevertheless
Ihave learnt English for a long time;
however, I can not speak well
or otherwise
I try hard to study English; otherwise, I
need to find a new way to study it
so consequently
therefore
thus….
I have tried my best; therefore, I know
I will be successful
LOGO
www.themegallery.com
