Unit 13. Ex'treme and Ex'tremity.
Suffixes and Word Stress (3)
Some words don't change their stress pattern when a suffix is addedto the root word, but do change the pronunciation of the vowel in themain stressed syllable. Compare:
The following table shows a number of possible vowel changes. Themain stressed syllable and the pronunciation of the vowel in thissyllable are shown:
In some words, as well as a change in the pronunciation of the vowelin the stressed syllable, there is also a change in the pronunciationof the consonants) that follow it.
|In other words like this, there is a change in the pronunciation ofthe vowel in the stressed syllable and also the spelling of either thisvowel and/or the consonant(s) that follow it.
|Words that do change their stress pattern when a suffix is addedto the root also commonly change their pronunciation in one or moresyllable:
pro'nounce - pronunci'ation pre'fer - 'preferable
/∂/ /au/ /∂/ /Λ/ /ι//з:/ /e//∂/
There are many words like this, and a great variety of pronunciation changes.
Which of these words have main stress on the same syllable as their root word? Write S (Same) or D (Different).
|Now listen and check your answers.
|Look again at the words in exercise 1 with main stress on the samesyllable as their root. Underline the ones which have a different vowelsound in the main stressed syllable from that in the main stressedsyllable in their root. (Some of these are given in A and В opposite.)
Key.D: intervention; consumption; sanity; precision; sincerity
S: familiarise; security; maturity; delivery; diversion;
Example: intervention (intervention /e/ - inter'vene /i:/)
|Now listen again to the words in exercise 1 and check your answers.
|Complete each pair of sentences using pairs of words from the box.
Key.1 a divide b division
2 a competitive b compete
3 a collision b collide
4 a example b exemplary
5 a national b nation
collide-collision compete-competitive divide-division example-exemplary nation-national
a It costs £10 a year to subscribe to the sports centre.
b I've taken out an annual subscription to the magazine.
1 a We'll ___________ the money between us.
b Brighton football club was promoted to the frst ___________.
2 a It's diffcult to stay ___________ in business.
b He was much faster and I couldn't ___________ with him.
3 a Rod broke his leg in the ___________.
b They say the comet is going to ___________ with Saturn.
4 a She set a good ___________ to her younger sister.
b Their behaviour was ___________.
5 a The first of May is a ___________ holiday.
b Practically the whole ___________ watched the eclipse.
Now listen and check your answers. Then read the sentences aloud.
|Write the words from the box in the correct column according to thevowel sound in the main stressed syllable of their root word. There arethree words in each column.
|Unit 12 Unit 13 Unit 14