C 057


Listen to Part 2 of Brad’s talk. 1. Complete the notes with the nouns in the box.


magnetism paint price recycling rust


strength


2. Work in pairs to compare your notes. 3. 057


Listen again and check.


D Work it out! Engineers use aluminium for most planes. Why? Make a list of ideas.


Cars: Why steel? 1.


2. 3.


. ..


95% of a car in EU = ‘must be recycled’ steel = easier to recycle than Al. Problem = But


= protects steel


E Work in groups. Which material is better for each of these products – steel or aluminium? Why?


!


(Al. = not magn.) = imp.


= 5 x cheaper than Al. = 1.5 x stronger than Al. – steel = magnetic


a speedboat


a food can


a window frame Grammar for listening: Predicting the next word


You must learn to predict information during listening. This is active listening. Aluminium is very [adjective] common. It is a very common [noun] element. Aluminium is quite hard to [verb] recycle.


The grammar of the sentence helps you. The vocabulary in the sentence helps you, too. 058


air. away.


changes. material.


1 steel. Listen to fi ve sentences from the talk. Choose the best word to complete each sentence.


a warship


a ladder


53


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