1. FILL IN THE GAPS. THERE IS ONE EXTRA WORD WHICH YOU DO NOT NEED TO USE: 

 _footprint_, _threat_, _gases_, _habitats_, _temperature_, _bulbs_. 

  

1. Global warming is a serious _____ to animals that live in cold climates. 

2. In London, the average _____ in summer is 24°C, but on some days it can be as high as 30°C. 

3. Greenhouse _____ are produced by cars, aeroplanes and industry and they are altering the Earth’s climate. 

4. When people cut down trees, birds and animals lose their _____ . 

5. People who drive to work every day have a larger carbon _____ than those who walk or take the bus. 

  

2. CHOOSE THE CORRECT WORD. 

  

1. If the ice sheets of Greenland and Antarctica ever {erupt; heat up; melt} completely, sea levels will rise by about 60 m. 

2. When we burn fossil fuels, the gas they produce {hardens; traps; surrounds} the Earth like a thick blanket. 

3. In Rome, temperatures hardly ever {raise; drop; rise} below zero in the winter. 

4. We can cycle or walk to school if we want to help {vanish; reduce; dissolve} the amount of carbon dioxide in the atmosphere. 

5. I’ve lost the electrician’s number. Please pass me the phone book so that I can look it {up; over; in} . 

  

3. FILL IN THE CORRECT WORD DERIVED FROM THE WORD IN BRACKETS. 

  

1. The buildings that were sensitively designed, however they were not purely _____ . (FUNCTION) 

2. Sit down and make yourself _____ . (COMFORT) 

3. Steel factories are very _____ to the environment. They release a lot of toxic material. (HARM) 

4. Carla was always very _____ about her work. She never gives anything away. (SECRET) 

5. How can you be so _____ ? You always think only about yourself. (SELF) 

  

4. FILL IN THE GAPS WITH THE CORRECT WORD(S). THERE IS A HINT IN THE BRACKETS. 

  

1. We got stuck in a _____ . (_a snowstorm_) 

2. They survived a terrible _____ . (_a long period without rainfall_) 

3. Solar panels that _____ the sun's heat. (_capture and not allow to escape_) 

4. The governor announced a new plan to _____ crime. (_bring down in amount, extent or degree_) 

5. Thousands of people will _____ if food doesn't reach the city. (_die from hunger; be very hungry_) 

  

5. PUT THE VERBS IN BRACKETS INTO THE CORRECT TENSE. 

  

0. If he ______________ earlier (LEAVE), he would have caught his flight. 

_If he HAD LEFT earlier (LEAVE), he would have caught his flight. _ 

  

1. He will be furious if he ever _____ (FIND OUT) about this. 

2. If you don’t like it, _____ it (NOT / EAT). 

3. I _____ (RUN) home if I had known the football match was on TV. 

4. The teacher _____ (NOT / SHOUT) at her if she did her homework. 

5. He would not buy a car unless he _____ (PASS) his driving test. 

6. If you heat water to 100 degrees Celsius, it _____ (BOIL). 

7. If I _____ (BE) you, I would ask for help. 

8. If she’d passed her exams, she _____ (GO) to university. 

9. If it _____ (NOT / RAIN), we would be very happy. 

10. The animals at the zoo _____ (DIE) unless they’re fed.