What does "long poles at last reared from the sea" mean?

Read this excerpt from the declaration of independence

1. in which sentence is the underlined portion a predicate nominative? for astronauts, going into space to repair orbiting equipment becomes a challenge. for astronauts, going into space to repair orbiting equipment becomes tricky. for astronauts, going into space to repair orbiting equipment becomes challenging. for astronauts, going into space to repair orbiting equipment becomes frequent.

70 ! i need an intro paragraph. here is the prompt, "suppose that the mayor of your city wants to declare a television-free week. no one in the city could watch tv. some people are for the idea, and others are against it. the local newspaper is devoting a special section to discussing the issue, and you want to write an article stating your view. which side do you take and why? " i am saying it should not be done. my reasons are the importance of news, children entertainment, and sports. i really need with my intro