二、修改方法

從語(yǔ)法上而言，如果句子開(kāi)始是分詞結(jié)構(gòu)，那么它的邏輯主語(yǔ)必須是整個(gè)句子的主語(yǔ)。在修改句子題中，卻往往相反，即句子的主語(yǔ)不是分詞結(jié)構(gòu)的邏輯主語(yǔ)。修改的方法是“一步必殺”法：將句子的主語(yǔ)替換為分詞結(jié)構(gòu)的邏輯主語(yǔ)（一般藏在句子中）。正確答案通常就是以分詞結(jié)構(gòu)的邏輯主語(yǔ)為句子主語(yǔ)的選項(xiàng)。根據(jù)“一步必殺”法，上述句子修改如下。

1. Lacking good instruction, my mistakes in creating a graph to illustrate historical trends were numerous.

(A) my mistakes in creating a graph to illustrate historical trends were numerous

(B) I made numerous mistakes in creating a graph to illustrate historical trends

(C) there were numerous mistakes in the graph I created to illustrate historical trends

(D) I created a graph to illustrate historical trends with numerous mistakes

(E) The graph I made for illustrating historical trends had numerous mistakes

現(xiàn)在分詞lacking的邏輯主語(yǔ)，即整個(gè)句子的主語(yǔ)應(yīng)該是“I”，而實(shí)際上卻是“my mistakes”。修改時(shí)只需要將句子的主語(yǔ)改為“I”就可以了。符合這個(gè)要求的有(B)與(D)兩個(gè)選項(xiàng)，其中(D)選項(xiàng)將numerous mistakes放錯(cuò)了位置，使得整個(gè)句子意思荒謬。因此(B)為正確答案。這也告訴考生，正確答案只要改正原句的主要錯(cuò)誤就可以了，而無(wú)須做太多額外的修改，因?yàn)榕c原句相比，這么做將使改后的句子變得面目全非。

2. Carried by the strong, dry winds of the stratosphere, the 1980 eruption of Mount Saint Helens caused dust that crossed the United States in three days and circled the globe in two weeks. （句子以過(guò)去分詞carried開(kāi)始）

(A) the 1980 eruption of Mount Saint Helens caused dust that

(B) Mount Saint Helens’ eruption in 1980 caused dust that

(C) dust from the 1980 eruption of Mount Saint Helens

(D) dust from the 1980 eruption of Mount Saint Helens that

(E) there was dust from the 1980 eruption of Mount Saint Helens and it

過(guò)去分詞carried的邏輯主語(yǔ)，即整個(gè)句子的主語(yǔ)應(yīng)該是“dust”（dust 被winds吹走），而實(shí)際上卻是“eruption”。修改時(shí)只需要將句子的主語(yǔ)改為“dust”就可以了。符合這個(gè)要求的有(C)與(D)兩個(gè)選項(xiàng)，其中(D)選項(xiàng)保留了原句的that，使得that之后的crossed成了that引導(dǎo)的從句的謂語(yǔ)，也使得整個(gè)句子沒(méi)有謂語(yǔ)，因此(D)為干擾選項(xiàng)， (C)為正確答案。

3. By simply entering an internet website or calling a toll-free number, a catalog order can be placed for almost anything from cheesecakes to fully equipped desktop computers. （句子以介詞by加分詞entering…or calling…開(kāi)始）

(A) a catalog order can be placed

(B) by placing a catalog order

(C) they will place your catalog order

(D) you can place a catalog order

(E) your catalog order can be placed

介詞by之后的現(xiàn)在分詞entering與calling的邏輯主語(yǔ)，即整個(gè)句子的主語(yǔ)應(yīng)該是人，例如you、one等，而實(shí)際上卻是“a catalog order”。修改時(shí)只需要將句子的主語(yǔ)改為人就可以了。符合這個(gè)要求的有(C)與(D)兩個(gè)選項(xiàng)，其中(C)選項(xiàng)存在代詞混用的情況（they與 your無(wú)法協(xié)調(diào)） ，因此(C)為干擾選項(xiàng)， (D)為正確答案。

4. While driving down the road, the house with the large yard and small pond attracted the family’s attention. （句子以連詞while加分詞driving down…開(kāi)始）

(A) the house with the large yard and small pond attracted the family’s attention

(B) the house having the large yard and a small pond attracted the attention of the family

(C) the house with the yard and small pond was attractive to the family’s attention

(D) the family’s attention was attracted by the house with the large yard and small pond

(E) the family was attracted to the house with the large yard and small pond

連詞while之后的現(xiàn)在分詞driving down的邏輯主語(yǔ)，即整個(gè)句子的主語(yǔ)應(yīng)該是人，也就是句中的family，而實(shí)際上卻是“the house”。修改時(shí)只需要將句子的主語(yǔ)改為family就可以了。符合這個(gè)要求的只有(E)選項(xiàng)，因此 (E)為正確答案。(D)選項(xiàng)的主語(yǔ)是attention，而不是family，因此是干擾選項(xiàng) 。

由此可見(jiàn)，對(duì)于SAT語(yǔ)法部分的問(wèn)題，只要理解了其性質(zhì)，都能找到快捷高效的處理辦法。這也正是SAT教師業(yè)務(wù)的精髓所在。

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