SAT语法改进句子题型中，逻辑主语出现的形式很多，主要有以下几个方面。

　　1. 在SAT语法改进句子题型中，逻辑主语经常以现在分词作为句子的开头

　　例如，Lacking good instruction, my mistakes in creating a graph to illustrate historical trends were numerous. ( 句子以现在分词lacking开始)

　　(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

　　2. 在SAT语法改进句子题型中，逻辑主语也习惯以过去分词作为开始

　　例如，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. (句子以过去分词carried开始)

　　(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

　　3. 在SAT语法改进句子题型中，以介词加分词开始也是逻辑主语出现的`一种形式。

　　例如，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. (句子以介词by加分词entering…or calling…开始)

　　(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

　　4. 以连词加分词或形容词开始的形式在在SAT语法改进句子题型中也表明了逻辑主语的出现。

　　例如，While driving down the road, the house with the large yard and small pond attracted the family’s attention. (句子以连词while加分词driving down…开始)

　　(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

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