like coatings that can prevent the growth of certain types of bacteria. However, research on surface-coating applications of antimicrobial plant extracts is still largely in the experimental stages. Much more would need to be known about the key ingredients and the types of micro-organisms they would target. Look at the text again. Which highlighted verbs mean: A this is the whole of it? B this is only part of it? C it has this inside it? Look at these sentences. Which verb do you think should be used in each case? Why? 1 The development of microbe-killing surfaces includes / involves a lot of work. 2 Each of these insect wings includes / contains lots of tiny spikes. 3 Our collection of natural materials comprises / contains animal as well as plant-based samples. In small groups, talk about these questions. 1 Which infectious diseases are common in Austria? Which are less common? What about the forms of treatment? 2 Which surfaces should be antibacterial to fight the spread of diseases? Think of everyday life and different workplaces. 3 What other measures do you know to protect yourself from infections? Do you think they are useful? Why? / Why not? 4 Apart from infections, which other global health issues do you know? How pressing do you think they are? In pairs, look at the pictures. What other measures can you imagine being taken in restaurants? Language focus consist, include 19 a b Speaking 20 Listening 21 a Listen to the conversations. What are they about? 1 Which of the speakers’ remarks do you agree with? Why? 3 Why do the speakers interrupt each other? 2 Who was better at making their point? Would you do this in everyday conversation? Listen again. Note down expressions to: 1 interrupt the other speaker. 2 support what the other person said. 3 disagree with the other speaker. 4 say that someone is missing the point. 5 say that someone is over-simplifying. 6 strongly agree with the other person. b u449yc 7 Language focus Taking turns 22 a 26 Language skills Extras Explore 2 Global issues Nur zu Prüfzwecken – Eigentum des Verlags öbv
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