I'd be intrigued to see the plagiarism sentences highlighted by teacher.
Eg you only have to search Macbeth character analysis and immediately 8+ links come up, many of which students may have looked at.
Did she use her photographic memory and memorise it verbatim? Many of the links? And then reproduce huge sentences? In which case you must talk to her about how that can't happen.
Eg Sparknotes:
"Lady Macbeth
Macbeth’s wife, a deeply ambitious woman who lusts for power and position. Early in the play, she seems to be the stronger and more ruthless of the two, as she urges her husband to kill Duncan and seize the crown. After the bloodshed begins, however, Lady Macbeth falls victim to guilt and madness to an even greater degree than her husband. Her conscience affects her to such an extent that she eventually commits suicide. Interestingly, she and Macbeth are presented as being deeply in love, and many of Lady Macbeth’s speeches imply that her influence over her husband is primarily sexual. Their joint alienation from the world, occasioned by their partnership in crime, seems to strengthen the attachment that they feel to each another."
Many of the things in the above, will be the all the links. "victim to guilt and madness" is one that comes up again and again.
If on the other hand she's written many of the words above, together, it could be an issue.
Please come back to us op once you see the paper. I'd be asking teacher to put it in an email. Hopefully highlight in yellow which bit is taken directly from a website.
Many of us have year 11 and year 10's, so this kind of thing is important.