- •I предисловие
- •Vocabulary notes
- •Vocabulary notes
- •Find international words in the text.
- •Find English equivalents for the following
- •3. Match the English words and word combinations given below with the Russian equivalents
- •4. Answer the following questions
- •5. Translate the passage of the text beginning with «When Ghritopher Columbus...» to «... Particularly silver» in writing.
- •Metals and alloys
- •3. Match the English words and word combinations given below with the Russian equivalents
- •4. Answer the following questions
- •Bronze and brass
- •Vocabulary notes
- •If mixed with tin if you had been a soldier to straighten sword
- •Improvement to bend
- •1. Answer the following questions
- •2. Match the words on the left with their definitions on
- •3. Find out which sentences correspond to the contents of the text
- •4. Render the following
- •5. Translate at sight
- •1, Answer the following questions
- •2. Find out which sentences correspond to the contents of the text
- •3. Match the words on the left with their definitions on the right
- •1. Answer the following questions
- •4. Render the following
- •5. Translate at sight
- •2. Match the words on the left with their definitions on the right
- •3. Find out which sentences correspond to the contents of the text
- •4. Render the following
- •1. Answer the following questions
- •2. Match the words on the left with their definitions on the right
- •1. Answer the following questions
- •2. Match the words on the left with their definitions on the right
- •Metal handling
- •3. Look up in the Polytechnical or Metallurgical dictionaries to find some other types of pouring metal in addition to those given ** the text. Give their definitions.
- •4. Find out which sentences do not correspond to the contents of the text
- •Read the following text and find the answers to the question below
- •7. Translate at sight
- •Shell moulding
- •1. Answer the following questions
- •2. Match the words on the left with their definitions on the right
- •4. Read the following text and find the answers to the questions below
- •Give the title to the text above.
- •Use your translation of 4 in describing the process of «Shell Moulding» as compared with «Sand Moulding».
- •Translate at sight
- •Investment casting
- •1. Answer the following questions
- •Translate at sight
- •1. Answer the following questions
- •2. Match the words on the left with their definitions on the right
- •3. Find out which sentences do not correspond to the contents ofthe text
- •4. Read the text and
- •2. Match the words on the left with their definitions on the right
- •Fibre direction
- •Match the words on the left with their definitions on the right
- •1. Answer the following questions
- •2. Find the English equivalents for the following Russian word combinations
- •3. Match the words on the left with their definitions on the right
- •4. Translate at sight
- •3. Translate at sight
- •1. Answer the following questions
- •2. Find the English equivalents for the following Russian word combinations
- •3. Translate at sight
- •Impact pressure squeeze pressure production
- •5. What do these descriptions refer to
- •Find the key terms in the part of the text «Simple Structure of steel», beginning with «When this cementite is formed...» and to the end of the text. Give their definitions.
- •Make up a summary of the text above.
- •Retell the text «Quenching and Tempering» using the answers to the questions from 1 as a plan.
- •Read the text
- •Find in the text above two coupling terms. Give their definitions.
- •Give a title to the text.
- •Make up an abstract of the text «Hardening» in writing.
- •6. Say what these statements have to do with. Paraphrase them using the words from the text above. Start each answer in this way, «This statement has to do with...»
- •Make up a summary of the text.
- •2. Find in the text «The Sintering Process» synonyms for the following
- •Design rules
- •6. Prepare a report on the topic «The Powder Metallurgy Process» taking in Units 29-33. Use the word combinations from Chapter 3, Appendix 4 «English for Scientific Discussions».
- •Industrial mould-casting processes
- •Introduction
- •Is to do with...
- •Is devoted to...
- •7. Referring to visual aids
- •9. Inviting questions
- •I contents
Vocabulary notes
non-ferrous
metals
to
be composed of
to
consist of, to comprise, to contain
to
include
rock
цветные металлы состоять из - содержать
содержать, включать, заключать горная порода, скалистый грунт
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Exercises
Find international words in the text.
Find English equivalents for the following
цветные металлы
содержать железо
извлекать
железо и сера вступают в реакцию с кислородом
электролиз
сляб, анод и катод
эле ктро обмотка
молниеотвод
галенит
припой
гарт
касситерит
предотвратить коррозию
мягкий припой
сплав на оловянной основе
олово
система водоснабжения
ржаветь
акведук
3. Match the English words and word combinations given below with the Russian equivalents
to be composed of а) едкое вещество
sulphide ore b) оседать на дно
sulphur dioxide с) состоять из
blister copper d) длиться долгое время
fall below e) электроприборы
electrical devices f) двуокись серы, сернистый ангидрид
to last a long time g) противорадиационный экран
corrosive h) свинцовые отравления
radiation shielding i) покрывать металлы Ю) lead-poisoning j ) пузырчатая медь
11) to cover metals k) серный (железный) колчедан, пирит
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4. Answer the following questions
What is a non-ferrous metal?
What is most copper extracted from?
Why is copper so widely valued?
Were lead and tin widely known in Roman times?
How did the Romans use lead?
What are the properties of tin?
Why is tin widely used for coating other metals?
5. Vocabulary in context. Choose the word that best matches with the meaning of the italicized word as it is used in each of the sentences
1. Calcium is obtained from the electrolysis of calcium chloride a) destroyed
b)got
2. The initial research was not successful, so a second experi ment was planned
last
first
3. He wanted to shield himself from the burning sun
pan
protect
4. The space between the earth and the moon is a vacuum
empty
fill
5. The earth absorbs the water from the rain
gives off
drinks in
6. AU efforts were concentrated on the research programme
devoted
centered
7. Car natural resources are not inexhaustible
limited
endless
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ный металл
9) the least chemically active metal i) удивительные достижения
10) to draw into a wire j) критиковать за
4. Answer the following questions
What are the precious metals valued for?
When did the Spanish expeditions set for South America?
What did they find there?
What was their most exciting discovery?
Why is it easy to hammer gold into thin sheets?
Where is gold used?
What are the properties of silver?