四个比较ppt.ppt

比较结构 （一）比较结构知识点讲解 1.倍数表达法：基数词+times once twice three times 2.分数表达法：分子用基数，分母用序数； 分子大于1，分母+S 2/3 two-thirds 注意特殊表达方式：hundred thousand million billion 加具体数字不加S 例： tow hundred hundreds of;3.倍数在句中的应用 主语+谓语+倍数/分数+as+adj+as This room is twice as big as that one. 主语+谓语+倍数/分数+the size(amount/length/price…)of . The new laptop is three times the prize of the used/old one. 注意：比较的对象要一致 The wheather of Beijing is much colder than that of Wuhan. 主语+谓语+倍数/分数+adj/adv比较级+than The room is three times bigger than that one. increase/decrease by+倍数/分数;具有比较意义的adj两个特点： （1）不能与more, -er连用 （2）不能与than连用，只能与to连用 Superior to 优于 inferior to 劣于 Senior to 年长于 junior to 比…年幼 Prior to=before 比…之前 sensitive to 比….敏感 Second to 仅次于 I’m second to none. preferable to 比….更合适 含有最高意义的adj Absolute unique round right wrong correct perfect outstanding ;常考结构：be+of+a+n 具有某种特征的人或物 例如：He is of a writer. be +much+of+a+n be +more+of+a+n+than be +as+much+of+a+n+as;一些特殊的比较结构 ①the more …,the more… 越…越 例如：The harder you study, the more progress you’ll make. ②(not)so/as…as “如同…一样，不如…” 例如：It is not so/as good as it looks. ③the same+ 名词as/the same as 和…一样 例如：She looks just the same as before. I got the same feeling as you did.;④no more A than B/ A not …any more than B “正如A不能…B也不能”；“和…一样不” 注意：than后必须用肯定形式但表示否定含义 例如： A fool can no more see his own folly than he can see his ears. no less…than “不比…差” ⑤not A so much as B not so much A as B not more…A than B “与其说A不如说B”；“是B,而不是A” 例如：He is not so much a writer as a reporter.;07年 51. There are as good fish in the sea __ _ ever came out of it. [A] than [B] like [C] as [D] so 57.It is not __much the language as the background that makes the book difficulte to understand. [A] that [B] as [C] so [D] very not