- •Unit 15. Materials Science. Language Work
- •1. Fill in the table:
- •2. Put in the missing words, using the words from the table above:
- •7. The students are at the seminar on metal technology. Listen to their discussion and learn what properties copper has and where it can be used. Insert the appropriate modal verbs.
- •8. That’s how we ask for and give permission in English. Study the table.
- •9. Complete the dialogues using the phrases for asking and giving permission.
- •10. Find words formed from the first word in the line.
- •11. Restore the original sentences.
- •12. Say what these people could do in the past.
- •13. Give advice to your friend in the following situations. Use the modal verb should.
- •14. Use the following statements in the past and future.
- •15. Ask your scientific supervisor to explain what can happen to these engineering materials.
- •16. Your partner is an Instructor in the lab. Ask him if you may perform the following actions. Work in pairs.
- •17. Your friend wanted to do a lot of things at the practical class yesterday. Ask him if he was allowed to do all of them.
- •18. Discuss with your friend which of these things may be done.
- •19. Translate the following sentences from Russian into English.
- •20. Choose as many words from the table оf ex. 1 as you can and form sensible, using Modal Verbs.
- •Specialist Reading
- •If you failed try to answer these questions again after doing the exercises given below the text.
- •Speaking
- •25. Divide into 2 groups. Group 1 translates Extract a and group 2 – extract b of the text “Welding” with a dictionary in writing.
12. Say what these people could do in the past.
For example:
• I cannot use the new apparatus now but I could use it yesterday.
He cannot do research on copper alloys this term but he … it last term.
We cannot compare the properties of these substances now but we … them during our previous experiment.
They cannot study aluminium bronze at the lesson now but they … it in the lab yesterday.
We cannot extract copper with the help of stone and bone but ancient people … it in this way thousands of years ago.
I cannot describe the results of his experiment today but I … them yesterday.
13. Give advice to your friend in the following situations. Use the modal verb should.
For example:
• Student A: I have an examination tomorrow.
Student B: Well, you should work very hard tonight.
I don’t know how to draw up a report of my experiment.
I’m very tired after the practical class.
I’d like to know more about plastics.
I’d like to buy good sports equipment.
I want to become a materials engineer but I don’t know what I must study and at what University.
14. Use the following statements in the past and future.
For example:
He can drive well / He may continue the research.
He could drive well 10 years ago / He was allowed to continue the research.
He will be able to drive well in a month / He will be allowed to continue the research.
He can continue his studies at the Mechanical Engineering faculty.
Our engineers can extract copper in several ways.
You may use carbon steel in the construction of this building.
I can visit the Bingham Canyon copper mine.
She may extract iron from iron ores.
You may use manganese for changing properties of steels.
This new car can move without a driver.
You may apply alloy steels for various engineering purposes.
The scientists can use the samples of this substance in the test.
The engineer may increase the carbon content of the steel.
15. Ask your scientific supervisor to explain what can happen to these engineering materials.
For example:
copper / to be alloyed with iron
A: Can copper be alloyed with iron?
B: Certainly it can. Copper can be alloyed with iron.
or I’m afraid it can’t. Copper can’t be alloyed with iron.
a ductile metal / to be worked into a new shape
copper / to be used as a conductor of electricity
tin / to be alloyed with copper
brass / to be used in bearings and gears
copper / to be recycled several times
16. Your partner is an Instructor in the lab. Ask him if you may perform the following actions. Work in pairs.
For example:
to use these substances for the experiment
A: May I use these substances for the experiment?
B: Yes, you may. You may use these substances for the experiment.
To elaborate the plan of the research; to experiment with alloying elements; to carry out different operations on milling machines; to demonstrate the properties of tool steels; to observe the steel-making process.