8. perfect (adj.) 　Practice makes perfect.

7. grow (grew/ grown) ---- growth (n.)

6. team spirit / teamwork

5. chance / change / charge　

4. excellent /　 fluently　 /　 exact ----exactly

3. tough / different / hard 困难的

2. able /unable / less able ----ability/ abilities (n.) 能力 ----disabled 丧失能力的

1. the blind　 / blindness

9. improve (vt.) ---- improvement (n.)　 / develop (v)---- development (n)　 /　 prove (vt)证明，证实

8B Unit 6

8. special --- specially / especially (adv.)