Self study Task I. Read the text about the light tubes in Potsdamer Platz. What is a heliostat? Write the translation

Self study 2.

Task I. Read the text about the light tubes in Potsdamer Platz. What is a heliostat? Write the translation.



Task II. Are these statements true (T) or false (F)? Correct the false statements.

1 Each tube is over ten metres above ground. (T / F)

2 The tubes are made of glass and steel. (T / F)

3 A heliostat contains mirrors . (T / F)

4 Each light tube contains a plastic pipe. (T / F)

5 Light can onl y travel dow n the tubes. (T / F)

Task III. Put these words in the correct order to make zero conditional sentences.

1 If / need, / you / tell / help / me

2 If / it / wet / site, / things / on / rains / get

3 If / visits / the / client / let / know / me

4 If / is / you / a / cube / cut, / the / a / cross-section / square

5 If / strike / there / is / a, / stops / work

Task IV. Imagine a friend asks you to help hi m estimate the costs for building a garage on the side of his house. List the things he needs to consider in his estimate.

dimensions - First of all, we need to know the exact dimensions of the garage,

utilities - We need to check electrical requirements.