Properties and Shapes

Warming – up

1. Do you know shapes of buildings ?

2. What building components do you know ?

3. Can you give examples of different building forms ?

4. What properties of building material do you know ?

I. Look at these:

Here are some examples of basic forms:

a cube a hemisphere a triangular

prism

a pyramid a rectangular a cone a cylinder

prism

Now look at these drawings of buildings and building components:

a hotel a minaret an Egyptian a mosque

house

a brick an Arabic a Roman the structure

arch arch of a factory

a church a power station a steel a steel

building beam channel

Look at this example:

The brick is shaped like a rectangular prism.

Now complete these sentences:

a) The hotel is shaped like a___ .

b) The top of the minaret...

c) The dome of the Egyptian house

d) The column.....

e) The slab.......

f) The church......

g) The power station building..

II. Look at these drawings of two-dimensional shapes:

asquare shape a circular shape a semi-circular shape

arectangular shape atriangular shape

Nowlook and read:

The cross-section of a square prism is square in shape.

The longitudinal section of a square prism is rectangular in shape.

Make sentences from this table:

III. Now answer these questions about the drawings in exercise I:

a) Which building is pencil-shaped?

b) Which building component is I-shaped in cross-section?

c) Which building component is C-shaped in cross-section?

d) Which dome is egg-shaped?

e) Which arch is horseshoe-shaped?

f) Which building has diamond-shaped windows?

IV. Look and read:

a tube is hollow a rod is solid

a curved surface a flat surface

The power station building is hollow. It has five flat external

surfaces.

Now describe these buildings and components in a similar way:

a) The church

b) The slab

c) The column

d) The mosque

e) The steel beam

Date: 2015-12-24; view: 2240