Final answer:
The line 'and are attached to grossly material things, like health and money and the houses we live in' is an example of a metaphor used by Virginia Woolf in her extended metaphor about the spider's web.
Step-by-step explanation:
The line 'and are attached to grossly material things, like health and money and the houses we live in' is an example of a metaphor used by Virginia Woolf in her extended metaphor about the spider's web. A metaphor is a figure of speech that compares two seemingly unrelated things without using the words 'like' or 'as'. In this case, the spider's web is being compared to material things such as health, money, and houses.