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Section B (1a－Self Check) 重点单词1.sour 2.customer 3．the Olympics 4.Canadian 5．divide 6.basket 7.hero 8.nearly 单词变形1.decision 2.division 3．encouragement 4．achievement 重点短语1.by mistake 2．divide...into... 3．not only...but also... 4．look up to 5.in the end 6．more and more 7．come up with 8．at the same time 重点句型1.stop; from 2．The number of 3．encourage; achieve 4．decide on 5．This is because 6．us not to