Answer:
This excerpt is effective in communicating the purpose and arguments of the speech as a whole. The speaker is addressing the issue of invasion and the importance of the Navy in defending against it, so the structure of this excerpt focuses on the Navy and the other countries' navies. The speaker begins by acknowledging the importance of the Navy, then goes on to explain their role in the previous war by sending regular troops away and relying on the Territorials. This establishes the context for the rest of the excerpt, where the speaker discusses the capabilities of the German and Italian navies. By providing this context, the speaker drives home the importance of the Navy in defending the island against invasion.
The speaker then goes on to list the capabilities of the German and Italian navies, noting the superiority of the former and the potential threat posed by the latter. This serves to further highlight the importance of the Navy by emphasizing the need to be prepared for any attack. The speaker ends with a bold offer to Mussolini, suggesting that the British will provide him with a free and secure passage through the Strait of Gibraltar. This serves to emphasize the confidence of the speaker in the Navy's ability to defend against invasion. In sum, the structure of this excerpt provides evidence of the necessity of the Navy and the speaker's confidence in their ability to protect the island.
Step-by-step explanation: