The speaker is teaching a phonetics lesson, focusing on the pronunciation of words starting or ending with "ch" and the difference between "sh" and "ch" sounds. They also explain various words that are often mispronounced due to their similar sounds or spellings.
Additionally, the speaker discusses the difference between the words "wish" and "desire", as well as other words that are often confused with one another. They also explain the meanings of words such as "chip" (cheap), "zh" (leaf), and "hp" (man-made leaf).
The speaker also touches on the topic of teaching and learning, explaining the difference between a teacher and a professor, and how the word "process" is used in different contexts.
Throughout the lesson, the speaker uses various examples and anecdotes to illustrate their points and help students understand the correct pronunciations and meanings of words.
Here are the key facts extracted from the text:
1. The speaker is giving a phonetics lesson to the student.
2. The lesson focuses on the differences between the sounds "sh" and "ch".
3. In English, when a word starts or ends with "ch", it is pronounced as a "tsh" sound.
4. The speaker gives examples of words that start or end with "ch", such as "chair" and "share".
5. The speaker explains that in Portuguese, the sound "ch" is pronounced differently than in English.
6. The speaker discusses the difference between the words "sh" and "ch" in different languages.
7. The speaker explains that the word "choose" is pronounced with a "ch" sound, while the word "shoes" is pronounced with a "sh" sound.
8. The speaker gives examples of words that have different meanings depending on the pronunciation of "sh" or "ch".
9. The speaker discusses the word "which" and its different meanings in English.
10. The speaker explains that the word "wish" can be translated to "desejo" in Portuguese.
11. The speaker discusses the difference between "desire" and "wish".
12. The speaker explains that the word "teacher" comes from the verb "teach".
13. The speaker discusses the difference between "teacher" and "professor" in English.
14. The speaker explains that the word "process" comes from the word "professional".
15. The speaker discusses the difference between a teacher and a professor in English.