First conditional

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

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1. 1
   选择题

   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
   选择题

   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
   选择题

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

   ifalthoughunlessso'Unless' means 'if not'.
4. 4
   选择题

   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
   填空

   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
   填空

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

   答案: will lose同样正确: are going to loseThe result clause uses 'will' + infinitive.
7. 7
   填空

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

   答案: don't turn同样正确: do not turnThe negative 'if' clause uses 'don't/doesn't' + infinitive.
8. 8
   填空

   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
   填空

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

   答案: risesWith he/she/it the present simple in the 'if' clause takes -s.
10. 10
    判断对错

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

    答案: 正确It follows the pattern 'if' + present simple, 'will' + infinitive.
11. 11
    讨论题

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

    参考答案: 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
    讨论题

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

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