Tashkent university of information technologies named after muhammad al-kwarizmi abdiyeva saida

11C. LISTENING

Listen to part 1 of the recording to find the answers to these questions:

1. 
   What was Ralph arrested for?
   
2. 
   What does he do now?
   
3. 
   Why does he say people are too trusting?
   
4. 
   What passwords does he suggest for trying to get into a system?
   
5. 
   What does a firewall do?
   
6. 
   What is the advantage of a callback system?
   
7. 
   To prevent hacking, what sort of password should you avoid?
   
8. 
   What do event logs show?
   

11D. GRAMMAR

Zero conditional

Introduction

We use the zero conditional to talk about general or scientific truths and habits.

If you heat ice, it melts. (General truth)

If I drink coffee after 6pm, I can’t sleep. (Habit)

We also use it to talk about what people should do in certain situations.

If you feel tired, stop for a rest.

If you feel ill, take your medicine.

The formula is:

If/when/whenever + present simple, present simple.