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人教2003课标版《Learning about Language》优质课PPT课件下载
Do you want to be a Student Sherlock?
2 cases
Read the Case (Ⅰ)
Pay attention to the underlined expression and answer my questions.
(1)What did the boy see on his way home?
(2)What did he think he had seen?
(3)What did his sister say when he told the story?
(4)What did his mother say when he told the story?
(5)What did his father say when he told the story?
(3)What did his sister say when he told the story?
(4)What did his mother say when he told the story?
(5)What did his father say when he told the story?
(3) You couldn't have seen a ghost, because there
aren't any ghosts. You must have dreamt of it.
(4) You could have seen two fireflies resting and glowing together.
(5) You might have seen a cat, but I'm not sure.
What do they mean??
couldn’t/
can’t have done
must have done
could have done
may/might have done
In what situation are these grammar structures used?
To guess something that happened in the past.
To guess something that happened in the past.