- •Ф едеральное агентство по образованию
- •Английский язык
- •Unit I engineering
- •I. Read the title of the text and recollect everything you now about engineering and the profession of an engineer. Discuss your answers with a partner.
- •II. Discuss the following questions with a partner.
- •III. Read the text and decide if the following questions correspond to the information in the text.
- •Engineering
- •IV. Give Russian equivalents to the following English words and word combinations.
- •VI. Read the text again and find English equivalents to the following Russian words and word combinations.
- •VII. Match the words with their definitions:
- •VIII. Are these statements true or false? Correct the false ones with the right information from the text and discuss your answers with a partner.
- •IX. Give your definition of the term “engineering”.
- •X. Talk about the profession of an engineer from memory using these prompts:
- •XI. Surf the Internet and find new information about the profession of an engineer. Make a note of it and bring your notes to the class.
- •V. Match a word in a with its synonym in b:
- •Text b Science
- •I. Read the text about mechanical engineering and find answers to the following
- •I. Read the text about history of mechanical engineering and find answers to the following questions:
- •I. Make a comment on the quotations given below.
- •II. Answer the following questions:
- •Industrial Revolution
- •Text b Steam power
- •Unit II technological processes
- •I. Read the text and decide if the following questions correspond to the information in the text.
- •Technological Process
- •II. Find English equivalents to the following Russian words in the text:
- •III. Match the word from two columns with its antonym:
- •IV. Match the words with their definitions:
- •V. Are the statements true or false? Correct the false ones with the right information from the text and discuss your answers with the partners.
- •VI. Talk about technological processes using following prompts:
- •VII. Chose one of the technological processes and find more information about it by means of the Internet.
- •I. Read the texts and decide if the following statements correspond to the information in the texts or not.
- •II. Read the texts again. Which text a or b does the information correspond to?
- •I. Read the text and give the answers to the questions.
- •Electric discharge machining
- •Unit III Machine Tools
- •I. Read the text and decide if the following questions correspond to the information in the text.
- •II. Match a word in a with a word in b:
- •III. Match a word in a with its synonym in b:
- •IV. Read the text again and find English equivalents to the following Russian words and word combinations:
- •V. Match the words with their definitions:
- •VI. Work in pairs. Discuss which sentence in b best continues the sentence in a.
- •VII. Talk about machine tools according to the plan:
- •Text a Lathe
- •I. Read the text about lathes and find answers to the following questions.
- •Text b Grinding machine
- •I. Read the text about grinding machines and find answers to the following questions.
- •Text c Milling Machine
- •I. Read the text about milling machine and find answers to the following questions.
- •History of Machine Tools
- •Unit IV metals
- •I. Discuss the following questions in class.
- •II. Read the text and decide if the following questions correspond to the information in the text or not.
- •III. Find English equivalents to the following Russian words and word combinations.
- •IV. Match the words from two columns to make word combinations. Each word can be used only once:
- •V. Match the word from two columns with its synonym:
- •VI. Are the statements true or false? Correct the false ones with the right information from the text and discuss your answers with the partners.
- •VII. Answer the questions.
- •VIII. Put the sentences in the right order according to the text. Use them as a plan for retelling.
- •I. Read the text. Give the appropriate heading to every part of the text.
- •II. Say whether the following statements are true or false. Correct the false statements.
- •III. Answer the questions.
- •I. Discuss the following questions in class.
- •II. Read the text, answer the questions.
- •Unit V Automation
- •Automation
- •IV. Give Russian equivalents to the following English words and word combinations:
- •V. Match a word in a with its synonym in b:
- •VI. Read the text again and find English equivalents to the following Russian words and word combinations:
- •VII. Match the words with their definitions:
- •VIII. Are these statements true or false? Correct the false ones with the right information from the text and discuss your answers with a partner.
- •I Read the text about types of automation and find answers to the following questions:
- •Types of Automation
- •Unit VI casting
- •I. Read the text and circle the information that is not mentioned in the text.
- •II. Match the words with the Russian equivalents:
- •IV. What meaning do the following prefixes add? Find another example for each of these prefixes. Share them with the whole class.
- •V. Find the word in the text that has the similar meaning to the following.
- •VII. Discuss with your partner which sentence in b best continues the sentence in a.
- •VIII. What do the numbers refer to?
- •IX. Talk about casting from memory using these prompts:
- •I. You are going to read the text about cast defects. For the questions choose the answers
- •II. Surf the Internet and find some other cases of casting defects. Make a note of them and bring your notes to the class. Unit VI I ammunition
- •I. Read the text and circle the information that is not mentioned in the text.
- •Text b Rifle
- •II. Discuss with your partner which sentence in b best continues the sentence in a.
- •Unit VIII computers
- •I. Match the computer parts with the words below:
- •II. Make a list of people who use computers. What do they use them for?
- •III. Read the text Personal computers and circle the information that is not mentioned in the text.
- •Personal computers
- •IV. Match the words with the Russian equivalents:
- •V. Look at the groups of words below. Which is the odd one out in each group?
- •VI. Match the words with their definitions:
- •VIII. Discuss with your partner which sentence in b best continues the sentence in a.
- •IX. What do these numbers refer to?
- •X. Talk about computers from memory using these prompts.
- •I. Skim through the following text to get the general idea of the meaning. Do not worry about words you do not know. Choose a suitable title for the text.
- •II. Look at these words from the text. Write h (hardware), p (peripheral), s (software) or m (measurement) next to each one.
- •III. Work in pairs. Look at the chart and compare the two computers. Use fast, slow, cheap, expensive, big, small.
- •The computer and its uses
- •Unit IX the system of quality control
- •I. Discuss the following questions in class.
- •II. Read the text and decide if the following questions correspond to the information in the text or not.
- •III. Find English equivalents to the following Russian words and word combinations in the text.
- •IV. Match the words with their definitions. Translate these words into Russian.
- •V. Are the statements true or false? Correct the false ones with the right information from the text and discuss your answers with the partners.
- •III. Say whether the following statements are true or false. Correct the false statements.
- •I. Read the text and give the answers to the questions.
- •Essential vocabulary Unit I Engineering
- •Unit II Technological process
- •Unit III Machine tool
- •Unit IV Metals
- •Unit V Automation
- •Unit VI Casting
- •Unit VII Ammunition
- •Unit VIII Computers
- •Unit IX The system of quality control
- •Сontent
I. Read the text and give the answers to the questions.
1. When did English scientist Priestley first detect the erosive effect of electrical discharges on metals?
2. What did the Soviet scientists develop concerning this problem?
3. What process can we compare the EDM process with?
4. The Soviet scientists announced the construction of the first spark erosion machine in 1970,
didn’t they?
5. What spheres was the EDM process used in and why?
6. The conventional cutting process can be easily applied to electrical conductive materials, can’t it?
7. What makes the EDM process more versatile?
8. Is it true that, the process can be easily automated?
9. What other advantages of the EDM process can you enumerate?
Electric discharge machining
In 1970, the English scientist, Priestley first detected the erosive effect of electrical discharges on metals. More recently, during the research (to eliminate erosive effects on electrical contacts) the Soviet scientists Lazarenko ( father and son) decided to exploit the destructive effect of an electrical discharge and develop a controlled method of metal machining. In 1943, they announced the construction of the first spark erosion machine. The spark generator used in 1943, known as the Lazarenko circuit, has been employed over many years in power supplies for EDM machines and an improved form is being used in many current applications. The EDM process can be compared with the conventional cutting process, except that in this case, a suitably shaped tool electrode with a precision controlled movement is employed in place of cutting tool, and the cutting energy is provided by means of short duration electrical impulses. EDM has found ready application in the machining of hard metals or alloys which cannot be machined easily by conventional methods. It thus plays great role in the machining of dies, tools etc. made of tungsten carbides, satellites or hard steel. Alloys used in the aeronautics industry, for example, hastelloy etc. could also be machined conventionally by this process. This process has the added advantage of being capable of machining complicated components. The popularity of the EDM process is due to the following advantages:
The process can be easily applied to electrical conductive materials. Physical and metallurgical properties of the work material, such as strength, toughness, microstructure etc., are no barrier to its application.
During the machining the workpiece is not subjected to mechanical deformation as there is no physical contact between the tool and the work. This makes the process more versatile. As a result, slender and fragile jobs can be machined conventionally.
Although the metal removal in this case is due to thermal effects, there is no heating in the bulk of the material.
Complicated die counters in hard materials can be produced to a high degree of accuracy and surface finish.
The overall production compares well with the conventional processes because it can dispense with operations like grinding etc.
The surface produced by EDM consists of multitude of small craters. This may help in oil retention and better lubrication, especially for components where lubrication is a problem. The random distribution of the craters does not result in an appreciable reduction in fatigue strength of the components machined by EDM.
The process can be automated easily requiring very little attention from the machine operator.