Answer:
A sonnet is a short lyric poem that consists of 14 lines, typically written in iambic pentameter (a 10-syllable pattern of stressed and unstressed syllables) and following a specific rhyme scheme (of which there are several—we’ll go over this point more in just a moment).
Explanation:
In addition, sonnets have something called a volta (twist or turn), in which the rhyme scheme and the subject of the poem suddenly change, often to indicate a response to a question, a solution to a problem, or the resolving of some sort of tension established at the beginning of the poem. This turn normally happens closer to the end of the sonnet, though precisely when it appears varies depending on the particular sonnet form.
Answer: sand walls may be ugly ,but the protection of people and property Is more important
The first one about the machine is a metaphor, because there are no key words such as "like" or "as", so it cant be a simile. And its not comparing anything either, so it cant be an analogy. The second one about the teacher is also a metaphor. The gazelle one is a simile because it has the key word like in it. The triangle one is an analogy, because it is comparing two things. The last one is a simile, because he fought "like" a wild animal.
Hope this helps!