modals-deduction-about-the-past_154460.pptx

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1. GRAMMAR Modal for speculating about the past

2. What could have happened? He could have broken up with his girlfriend, Look and guess We use could have + Past participle to make guesses about the past. (It’s possible) = could have happened

3. What could have happened? He must have failed the final exam. Look and guess We use must have + Past participle when we are almost sure that something happened. (I BET) = must have happened

4. Past modals for speculation Grammar Make guesses about past events 90% 50% 10%

5. Time to practice! What could have happened? Look at the pictures Write down your assumptions (in a piece of paper) Then, Discuss with your partner

6. Use some expressions How to agree 👍 How to disagree 👎 Yes, I think so too I don’t think so. I agree with you I doubt it I feel / think the same That’s a good point but..

7. What do you think could have happened? Modal verb + have + past participle His dog may have made such a mess. I don’t think so. A burglar could have….

8. What do you think could have happened? Modal verb + have + past participle

9. What do you think could have happened? Modal verb + have + past participle

10. What do you think could have happened? Modal verb + have + past participle

11. What do you think could have happened? Modal verb + have + past participle

12. Pollution in Thailand Let’s talk! B A The whale must have swallowed …… What could have happened? SWALLOW = INGEST

13. Pollution in Thailand Let’s talk! B A In your opinion, what’s the best way to reduce the amount of plastic bags and trash we produce daily? The whale must have swallowed …… As far as I’m concerned, it would be best to (reduce single-use plastics).... Recycle - find alternatives to - save - throw away - economize on - cut down - reduce - pollute the environment As far as I’m concerned, it would be best to…… I think……. would make a less impact on the environment

14. SPEAKING Pollution

15. Discuss what could have happened in the following situations. Give your opinion (include Past modals and expressions to show agreement or disagreement) Plus, support your ideas and give extra details about what to do to reduce pollution in each situation Speaking Let’s talk about pollution