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7. Fill in the gaps using words/phrases from the list. Some words/phrases can be used more than once.

additionally, because of, as well, however (2), moreover, but (2), thereby,

in particular, that’s why, since (2) despite the fact that, consequently, thus, although (2), on the other hand

a) For many years after its discovery in 1817 lithium was a useless curiosity 1 its exceptive properties, 2 it has come into use quite recently.

b) 3 cesium is very active a small amount of it is enough to bring about good result and 4 Cs is a rare metal, it has many important uses.

c) 5 diesel is identical to heating oil, used in central heating, in both Europe and the United States taxes on diesel fuel are higher than on heating oil.

d) Food-grade paraffin wax is used in some candies to make them look shiny. 6 it is edible, 7 nondigestible, it passes right through the body without being broken down.

e) It might seem odd that fuels with higher octane ratings are used in more powerful engines, 8 such fuels ignite less easily. 9 many high-performance engines are designed to operate with a high maximum compression, and thus demand high-octane premium gasoline. 10 , an uncontrolled ignition is not desired in a spark ignition engine.

d) The ban on leaded gasoline resulted in lower levels of lead in the environment and 12 in human organism as well. 13 , an unexpected effect of the removal of lead was the effect on engines; 14 a side effect of the lead additives was protection of the valve seats from erosion, 15 many classic car's engines needed modification to use lead-free fuels.

e) The processing of natural gas involves removal of propane and butane from the natural gas to prevent condensation of these liquids in natural gas pipelines. 16 propane is not produced for its own sake, 17 as a byproduct of two other processes: natural gas processing and petroleum refining. 18 , oil refineries produce some propane as a by-product of production of gasoline or heating oil.

Visual Aids

The whole idea of using Powerpoint and graphics to boost your presentation skills is that people learn best when they hear and see at the same time. This is the best way to convey the “greatest number of ideas in the shortest amount of time”.

8. Read and take into account the recommendations in the table. PowerPoint Presentation Guidelines

Slides should be well-designed (i.e. made specifically for presentation purposes) and should remain on display for a significant length of time while you explain something.

"Flashing" slides is bad style. In general 8-10 slides (including the title/intro and conclusions) is plenty for a 15-minute talk.

Light fonts on dark backgrounds are good for textual material. Scientific graphs often work better on a light background.

Pale shade of fonts and graphs make them illegible. Avoid light colours like yellow as these sometimes do not appear in the conference room lighting conditions.

Keep the backgrounds simple - one colour or a gradual fade.

Multi-coloured or ornamented backgrounds draw attention from information itself.

Leave graphical figures up for a long time while talking, textual material up for a short time only. Keep text to a minimum.

Don’t press much textual material into one slide as too much information is liminal. Many photos or pictures in a slide clutter the audience with details.

You should label the x and y axes in graphs.

Try not to add grid lines to graphs as they clutter the image.

Graphs are more powerful than tables because they represent the change in information and powerful trends. Use relational graphs (i.e. plotting one variable against another) as they contain more information and allow to avoid confusion.

Avoid the use of vast tables, sometimes a fragment of a table illustrates your statements or results more effectively.

9. Read a cut version of the presentation and put the fragments into logical, commonly-accepted order. Decide which part a) includes Motivation and Reasons for this research; b) deals with the Results; c) includes Problems the researchers faced with.

Answer the following questions:

1. Did the scientists succeeded in creation of new materials?

2. Did they create absolutely new nanocoatings or only modified the ones created earlier?

3. What innovations are ready to come into practical use at present?