What is the difference between English sentence stress and word stress?

Accent in conversational sentences is a way of expression. Can express emphasis, sarcasm, quotation, pun, etc.

Example: She is a beautiful teacher.

When used as a declarative sentence, there is no need for sentence stress. No matter whether the emphasis is placed on beautiful or teacher in this sentence, the final emphasis is She is a teacher. It is customary in North America to put the emphasis on beautiful to emphasize that she is a good teacher. (Beautiful is the attributive of teacher, which is not directly related to the subject She, and does not emphasize her beauty)

Who is the chairman of China? I love China and I love my people, who doesn't?

This is one of the funnier political jokes in North America. We put the accent on the word "Who" (a pun on the last name of China's current boss), and the interrogative sentence becomes a declarative sentence.

I personally do not recommend deliberately memorizing the stress of sentences. In the future, you will be able to master it when you have more opportunities to actually use English. It is not good to nail down a certain pattern concept at the beginning.

Word stress is an attribute of the word itself, which is fixed and will not change.

However, the stress of words varies from region to region.

For example: detail

The British pronunciation of 'detail.[?di: teil] has the stress on the "de" at the beginning, and this de is a long sound

It's okay to pronounce de'tail. [d?tel] The emphasis is on tail, de is a short sound

Another example: interesting, there are two pronunciations in North America

One: 'interesting , this is probably how you usually pronounce it.

Second: inter'resting, which sounds awkward at first, just like inter plus a rest. It is more common in the southern United States.