Could you please help me to paraphrase these poems? I'd like to explain to the students about these poems.

Song
When I am dead, my dearest,
Sing no sad songs for me;
Plant thou no roses at my head,
Nor shady cypress tree:
Be the green grass above me
With showers and dewdrops wet;
And if thou wilt, remember,
And if thou wilt, forget.

I shall not see the shadows,
I shall not feel the rain;
I shall not hear the nightingale
Sing on, as if in pain:
And dreaming through the twilight
That doth not rise nor set,
Haply, I may remember,
And haply may forget.

Christina Rossetti

What is Pink?

What is pink? A rose is pink
By the fountain's brink.

What is red? A poppy's red
In its barley bed.

What is blue? The sky is blue
Where the clouds float through.

What is white? A swan is white
Salling In the light.

What is yellow? Pears are yellow,
Rich and ripe and mellow.

What is green? The grass is green,
With small flowers between.

What is violet? Clouds are violet
In the summer twilight.

What is orange? Why, an orange,
Just an orange!

Christina Rossetti