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Listen to the text again and fill in the gaps.
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3-Dimensional, 3-Dimensional, this means the shape or something has 1)_____ dimensions that means a curves up and 2)_____, side to side and front and 3)_____. That is 3-D. The opposite would be 2-D. So on the 4)_____ screen everything is 2-D. This is up and down and side to side. For 3-D you need 3-D 5)_____ for depth perception.
SPEAKING
12.Work in small groups; name the things which are usually round, triangle or square.
13.Imagine that you are a professor preparing for a lecture on Geometric Figures and Shapes. Think about the main ideas that you would like to cover in this lecture. You may also use the information from the text.
WRITING
14. Imagine that you are an examiner and you have to prepare some questions on the topic «Geometric Figures». Read the text again and use it to make a list of questions the students will have to answer at the exam. The following opening questions may help you.
- What is the difference between the …?
- How can we calculate the area/perimeter of …?
- How many straight/curved sides/angles …?
GRAMMAR IN USE
These exercises can help you to practise grammar topic “Comparisons” (See Appendix 1 p. 203 – 205) and do the following exercises.
Complete the table of adjectives.
| adjective | comparative | superlative |
| accurate | more accurate | the most accurate |
| pure | ||
| tall | ||
| hard | ||
| heavy | ||
| thin | ||
| far | ||
| impractical |
Use the information from the table to complete the sentences below.
| Bridge | Types of bridge | Length | Built |
| Humber Bridge, England | suspension | ||
| Golden Gate Bridge, USA | suspension | ||
| Verrazano Narrows, USA | suspension | ||
| Quebec Bridge, Canada | cantilever | ||
| Firth of Forth Railway Bridge, Scotland | cantilever | ||
| Commodore John Barry, USA | cantilever | ||
| New River Gorge, USA | steel arch | ||
| Sydney Harbour Bridge, Australia | steel arch |
The Humber Bridge is the (a) ____ (long) bridge listed in the table above. It is (b) ____ (long) than the Golden Gate Bridge in the USA but it isn't as (c)____ (old). The Verrazano Narrows Bridge in the USA is (d) ____ (new) than the Golden Gate Bridge but (e) ____ (old) than the Humber Bridge. The (f) ____ (long) cantilever bridge is the Quebec Bridge in Canada. It is 28 metres (g) ____ (long) than the Firth of Forth Railway Bridge in Scotland which is over 110 years (h) ____ (old). The (i) ____ (new) cantilever bridge is the Commodore John Barry which is also the (j) ____ (short). The Sydney Harbour Bridge is (k)____ (short) and (l) ____ (old) than the New River Gorge.
Complete the table of adverbs.
| adverb | comparative | superlative |
| quickly | more quickly | the most quickly |
| fast | ||
| well | ||
| badly | ||
| carefully | ||
| early | ||
| little | ||
| much |