Page 33 - English for Construction 2
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Vocabulary  7  Match he ouns   1-6  with  the orrect  adjectives  a-f.
                                      n
                                  t
                                                       c
                             1  strength        a)  elastic
                            2  toughness        b)  strong
                            3  hardness         c)  brittle
                            4  elasticity       d)  porous
                            5  brittleness      e)  hard
                            6  porosity         0   tough
                         8   Complete  these  sentences  by hoosing  the orrect  words  in  italics.
                                                                  c
                                                       c
                             1  Asphalt is used n road  construction because  it is strength  /  strong.
                                             i
                             2  Hardness  / Hard  asphalt is often  very  brittleness  /  brittle.
                                                                                         t
                                                                      r
                                                                                     f
                             3  Porosity  / Porous  asphalt mproves  safety  by emoving  water rom he
                                                     i
                                         t
                               surface  of he road.
                                                             t
                             4  Toughness  /  Tough  is a measure  of he energy  y o u need  to break  something.
                                            t
                                                                                           t
                                   i
                             5  It is mportant hat  roads  have  enough  elasticity  /  elastic  to eturn  to heir
                                                                                   r
                               original shape  after  loading.
              Language
        Comparatives
         We use adjectives to describe nouns.  a  loose/firm  surface
                                        an original  shape
                                        a  strong  material
         We make comparisons  by changing   Short adjectives: hard  -  harder,  strong  -  stronger
         the adjective.                 Adjectives ending in -y: heavy  -  heavier,  easy  -  easier
                                        Long adjectives: brittle  -  more/less  brittle,  porous  -  more/less  porous
                             Complete  these  sentences  with  materials of  your  choice.
                                  r
                                                          t
                             1  A ubber  band is  more  elastic han
                               A ceramic  tile is  more  brittle han
                                                         t
                                                      t
                               A piece of steel  is harder han
                                                 t
                                Soil  is  more  porous han
                                A slab of concrete  is stronger  than
                                                  t
                                A piece of Kevlar® is ougher han _
                                                         t
                        10   What  building  material(s)  can be used  to omplete  all of the sentences  in 9?
                                                                 c
               Speaking  11  Scaffolding  can be  constructed using different  materials, uch as  metal pipes  or
                                                                               s
                                                      t
                                                         p
                             bamboo.  With a partner, list he roperties  of these  t w o materials and discuss
                             the advantages  and disadvantages  of  each.


















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