1. Affricates破擦音 : /t∫/ /dЗ/ Time: 1period
Chapter Ten 第十章

2. Warming-up exercises:
/t/ talk big / a bad taste
tidy up / tailor-made
/d/ out of date / from dawn to dusk
day in and day out / dog days
/∫/ put in the shade / a sharp-sighted man
a shallow-headed man / have no shame
/З/ take no measures / the Treasury
adopt effective measures / at one’s leisure

3. Definition
Affricates occur when a complete closure is made somewhere in the mouth, and the soft palate is raised. Air pressure increases behind the closure, and is then released more slowly than in plosives.

4. Characteristics
Palato-alveolar sounds. The tongue tip, blade and rims close against the alveolar ridge and side teeth. The front of the tongue is raised, and when the air is released, there is audible friction. The soft palate is also raised. /t / is unvoiced and fortis /strong. /d / is voiced and lenis/weak. /d / is devoiced at the end of a word

5. 舌位图

6. Games and Activities

7. Practice 1. Words / t∫ / chat / charm / cheer / cheque
cheap / cheat / nature / touch
/dЗ/ jolly / juice / jam / judge change
larger / knowledge
2. Phrases
/ t∫ / have a chat / a blank cheque / the chief editor / a charming young lady / a child of nature cherish it / rise to challenge
/dЗ/ jump at the chance / join hands with
stew in one' s own juice / a plain Jane
a joint venture / make a sound judgment

8. 3. Sentences /dЗ/ She has done a jolly good job.
/ t∫/ Don’t be fooled. She is no chicken.
There is nothing to choose between them.
She has no choice but to quit the job.
They are chewing the fat to cheat the journey.
/dЗ/ She has done a jolly good job.
You must be joking.
If you hurt her she will bear you a grudge.
I’d like to have some orange juice.

9. 4. Tongue twisters Chuck cheap chocolate chips
Try Gerry’s charming German cherry gin.
Jane’s drainboard drain just drained Jane’s drainage.

10. 5. Jazz chants On a Diet First she gave up smoking,
Then she gave up gin,
Then she gave up chocolate cake,
She wanted to be thin.
Then she gave up breakfast,
Then she gave up lunch,
On lazy Sunday mornings,
She even gave up brunch.
No matter what she gave up,
Her skirts were very tight,
Cause she ate twelve cans of tuna fish,
For dinner every night

11. After-class assignments:
1. Review and remember the words, phrases, sentences, tongue twisters and the chant learned in class.
2. Make sentences, dialogues and /or advertising slogans containing the affricates.
3. Sing an English song: Whatever Will Be, Will Be.
4. 朗读葆青编著 高等教育出版社出版 《实用英语语音》P p198 语音补充练习1，2，3，4题。