SAT语法-4-比较结构.ppt

SAT语法——比较结构 比较结构标志词： like, unlike, than, similar to, different from, as…as…, the same as… 老陈原则：删除插入语和修饰词，分析句子主干 Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from others. Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from others. 倍数比较表示法： twice as many/much/big/small/high/long as … (adj) twice more/bigger/smaller/higher/longer than… (adj+er) twice the size/area/height/weight/amount of/that… (the+n) 以上三种句型必须牢记！ An iPhone 4 is twice as big as a business card. 注意：当被比较对象已经在前文中出现过的时候，可以用that或those来代替，以避免重复使用同一单词。 The history of China is much longer than that of the United States. White people’s family roots are deeper than those of ethnic minorities. 2. 可比原则（超过90%考题）： 被比较的两个对象一定要“绝对可比” 体会以下两个句子的表达： 我获得的奖学金比王二麻子多。 我获得的奖学金比王二麻子获得的奖学金多。 在SAT语法中，被比较的两个对象一定要“绝对可比”，比如，“我获得的奖学金”和“王二麻子”一个是物一个是人，不具有可比性。只有“我获得的奖学金”和“王二麻子获得的奖学金”才具有可比性。因此，在SAT题目中，我们认为第一个句子表达错误，第二个句子表达正确。 OG-P492-11 A mixture of jazz and classical idioms, the music of Gershwin was more innovative than most of his contemporaries. than most of his contemporaries than most of his contemporaries were than were most of his contemporaries than that of most of his contemporaries than most of his contemporaries, as far as music is concerned 选D。句子的真实主语为the music of Gershwin，而只有music和music (that)才具有可比性 3. 比较从句省略原则： 主语相同时，可以省略主语 I feel much better than (I) expected. 谓语相同时，可以省略动词，但需要保留助动词或情态动词 I worked harder than he (did). 主谓都相同，两者都可省略，但介词短语或状语从句不能省略 I work harder than (I did) in the past OG-P532-11 Twice as many bird species inhabit Ecuador as in North America. as in as inhabit instead of in when compared to than 选B。考察as..as…对称结构和比