Sentence stress

Sentence stress
Speakers of English stress key words in sentences. These are known as content words as they carry the meaning of the sentence. They are usually nouns, main verbs, adjectives and adverbs. Speakers do not stress function words. Function words are necessary for the grammar of the sentence but do not carry meaning. They are usually auxiliary verbs, prepositions, articles and pronouns.
Look at the following sentence. What are the content words?
I went to Japan with my sister.
In this sentence, the content words are: went, Japan and sister.
In English, speakers may decide to stress a certain content word or words within a sentence to express a clear message and this is known as sentence stress.
Let’s see how sentence stress can change the meaning of what you say. Look at the following sentence and listen to three different versions with three different stressed words:
Australian television doesn’t report much on international events.
Australian television doesn’t report much on international events. 
In this case, the word ‘Australian’ has been stressed, and by this the speaker is emphasising that he/she is speaking about television specifically from Australia, not from a different country.
Australian television doesn’t report much on international events.
In this sentence, the speaker is stressing the word ‘television’, to clarify that he/she is not referring to radio or any other type of media.
Australian television doesn’t report much on international events.
Here, the word ‘international’ has been stressed. The speaker’s intention is to show that he/she is not referring to regional or local events, but international.
Sentence stress is the music of spoken English. Like word stress, sentence stress can help you to understand spoken English, even rapid spoken English.
Sentence stress is what gives English its rhythm or "beat". You remember that word stress is accent on one syllable within a word. Sentence stress is accent on certain words within a sentence.
Most sentences have two basic types of word:

•