Unit 1 Topic: Engineering I. Reading skills Pre-reading tasks

3. Make up a plan in the form of questions.
4. Give the summary of the text in a written form.


IV. Comprehensive skills


1. Read and remember.
band [bænd] v скріпляти
be out of order v бути не гідним
bond n з’єднання
cinder [’sində] adj шлакобетонний
dense [dens] n щільний
porcelain [’pƆ:s(ə)lin] n фарфор
reinforced n зміцнений
travertine [’trævətin] n травертин, вапняний туф
wear v зношуватись


2. Listen to the text “Diamond Tool” and try to understand it.


3. True or false statements.

1. 
   A diamond tool is a cutting tool which contains diamond segments bonded to a base material.
   
2. 
   A diamond tool is used for cutting a wide variety of ferrous materials.
   
3. 
   Diamond is not suited to cut ceramics.
   
4. 
   The diamonds used in cutting tools are synthetic industrial diamonds.
   
5. 
   To cut a soft abrasive material you would need to use a diamond blade with a soft bond.
   

4. Listen to the text once again and answer the following questions.

1. 
   What does a diamond tool contain?
   
2. 
   What diamond blade would be needed for grinding or sawing?
   
3. 
   What kinds of diamonds are used in the diamond tools?
   
4. 
   Where are diamond-edged tools commonly used?
   
5. 
   The diamond segments are composed of diamond crystals and powder metal.
   

V. Communicative skills


Topic for discussion: Standard cutting tools shapes and their functions