First conditional

Real future situations and results: if + present simple, will + infinitive (the environment)

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1. 1
   Multiple choice

   If we recycle more, there less rubbish in our streets.

   would bewill beis beingwasIn the first conditional we use 'will' + infinitive in the result clause.
2. 2
   Multiple choice

   If you the lights off, you will save energy.

   turnwill turnturnedwould turnAfter 'if' in the first conditional we use the present simple, not 'will'.
3. 3
   Multiple choice

   We won't stop climate change we change our habits.

   ifalthoughunlessso'Unless' means 'if not'.
4. 4
   Multiple choice

   Which sentence is correct?

   If it will rain tomorrow, we will cancel the beach clean-up.If it rained tomorrow, we will cancel the beach clean-up.If it rains tomorrow, we will cancel the beach clean-up.If it rains tomorrow, we cancelled the beach clean-up.The first conditional is 'if' + present simple, then 'will' + infinitive.
5. 5
   Fill the gap

   If people bikes instead of cars, the air will be cleaner.

   will useuseusedusesThe 'if' clause uses the present simple, even though it talks about the future.
6. 6
   Fill the gap

   If we cut down the forests, many animals (lose) their homes.

   Answer: will loseAlso accepted: are going to loseThe result clause uses 'will' + infinitive.
7. 7
   Fill the gap

   If you (not / turn) off the tap, you will waste water.

   Answer: don't turnAlso accepted: do not turnThe negative 'if' clause uses 'don't/doesn't' + infinitive.
8. 8
   Fill the gap

   The planet will get warmer if we burning so much coal.

   won't stopdidn't stopdon't stopstopThe 'if' clause can come second, but it still uses the present simple.
9. 9
   Fill the gap

   What will happen if the sea level (rise) by one metre?

   Answer: risesWith he/she/it the present simple in the 'if' clause takes -s.
10. 10
    True / false

    This sentence is correct: 'If we plant more trees, the city will be greener.'

    Answer: TrueIt follows the pattern 'if' + present simple, 'will' + infinitive.
11. 11
    Discussion question

    What will happen to our planet if we don't change our habits?

    Sample answer: If we don't change our habits, the climate will get hotter and there will be more floods and fires. Many animals will disappear.
12. 12
    Discussion question

    If you have a free weekend soon, what will you do to help the environment?

    Sample answer: If I have a free weekend, I'll join a park clean-up and I'll sort all the rubbish at home.