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ІІІ . Language


Ex.7. Match word and word combinations in column A with those in column B:

A 1.вологий 2. олово 3. свинець 4. латунь 5. в’язкий 6. легіруючий елемент 7. іржа 8. обробляти 9. невід’ємний 10. м’який 11. ковкий 12. твердість

B 1. tough 2. lead 3. alloying element 4. rust 5. brass 6. ductile 7. soft 8. essential 9. hardness 10. to treat 11. damp 12. tin

Ex.8. Match words and their definitions:

1. to mix 2. to treat 3. rust 4. pipe 5. wire 6. to describe 7. aluminium 8. to predominate 9. casting 10. application

1.a reddish – brown substance that forms the surface of iron 2. metal in the form of thin thread 3. to say what sth is like, or what happened 4. the practical use 5. to combine two or more substances 6.to be most important or greatest in number 7. the process of metals’ melting or pouring into a form 8. to put a chemical substance into smth in order to protect it from damage 9. a light silver-coloured metal that is used for making cooking equipment 10. a tube that carries gas or liquid

Ex.9. Find the right ending of the sentences and translate these sentences:

1. 
   Non ferrous metals are rather … ……………………………………… .
   

1. 
   cheap
   
2. 
   expensive
   
3. 
   essential
   
4. 
   inexpensive
   

2. 
   Aluminium is used extensively for casting that are………………………. .
   

1. 
   to be light in weight, to be easily machined, or that must rust
   
2. 
   to be light in weight, light in colour, or that must not rust
   
3. 
   to be light in colour, light in weight, or that must be brittle
   

3. 
   All non-ferrous castings will take a high polish and ………………………. .
   

1. 
   will not rust so easily as the ferrous metals
   
2. 
   will rust so easily as the ferrous metals
   
3. 
   will alloy freely with carbon.
   

4. 
   Brasses are very ductile and……………………………………………….. .
   

1. 
   may be combined with carbon and silicon
   
2. 
   may be so hard that ordinary tool steel will not cut them.
   

5. 
   It is necessary to mix aluminium with some other metals………………… .
   

1. 
   because it is too hard for making castings.
   
2. 
   because it is too brittle for making castings.
   
3. 
   because it is too soft for making castings.