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考点二：序数词。提醒：ninth, twelfth, twentieth。 ①序数词表日期、楼层，世纪、生日、顺序。 1. Tom is busy preparing for a party to celebrate his sister’s _________ (twelve) birthday. (玄武) 2. —How was your day off yesterday? (江宁) —Perfect! It was my grandma’s ________(eighty)birthday. We had a big cake. ②“a+序数词”表示“又一，再一”，强调动作的反复性。 ③序数词后跟形容词的最高级 ④序数词后跟动词不定式 考点三：分数表达 分子用基数词，分母用序数词;分子超过一，分母加-s。 A recent scientific report says three________ (eight) of the school students suffer from sub-health(亚健康). (白下) 考点四：百分数表达。50 percent of the students 百分数和分数作主语，谓语动词跟后面的名词保持一致。 Two thirds of the students in our class ______ money to the poor girl recently. (玄武一模) A.have raised B.has raised C.have donated D.has donated 考点五：有关词组 in the 1870s, in one’s thirties, nine in/out of ten Though he's in his ________(六十几岁)，he's energetic enough to go round. (高淳) (责任编辑：admin) |