Unit 18
Language Conditional sentences
In a conditional sentence one action depends on another: If people walk on the coral, they will destroy it. present future This sentence tells us what will happen as the result of a certain action. 1 Complete the sentences with the correct verb forms. 1 If we have enough time, we will take a boat trip. (have / take) 2 We _____ (stay) on shore if the sea _____ (be) rough. 3 If the boat _____ (anchor) on the reef, it _____ (damage) the coral. 4 You _____ (see) lots of tiny fish If you _____ (look) in the water. 5 If we _____ (be) lucky, we _____ (see) sharks and manatees. 6 The instructor _____ (help) you if you _____ (not know) how to dive.
WB 5 p44
2 Use your own ideas to complete these conditional sentences. 1 If we go to the beach, we will ________________. 2 If I have time, ________________. 3 If it rains, ________________. 4 If we help other people, ________________.
This sentence tells us what might happen as the result of a certain action: If the reef disappeared , boat owners would lose their work.
simple past
would + root verb
3 Match 1–6 with A–F to form complete sentences. 1 If I wanted to swim A if it rained. 2 I would stay at home
B if she had a day off school. C I would have diving lessons. D I would go to the beach. E we would go to the reef.
3 If we had a boat 4 I would be thrilled
5 Kim would go out with her friends
6 If I had enough money
F if I spotted a whale.
• Exercise 3: Practise this type of conditional sentence by asking students questions, e.g. What would you do if you won a lot of money? Where would you go if you had a day off school? If you could meet a famous person, who would it be?
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