自力主格是咱們溫習gmat測驗語法常見的常識點,自力主格是gmat語法中比擬難控制的一個常識點。考生們溫習的時刻不但要曉得自力主格是甚麽,gmat入門的同窗更要去懂得它的具體內容,下面是小編的剖析:
自力主格,起首它是一個“格”,而不是一個“句子”,在英語中任何一個句子都要有主謂構造,而在這個構造中,沒有真實的主語和謂語動詞,但又在邏輯上組成主謂或主表幹系。
“自力主格構造”在gmat語法測驗句中的功效就相稱於一個帶有本身主語的狀語從句。家喻戶曉非限定性從句平日以主句的某一身分作為本身的邏輯主語,從而依靠於主句。而有些非限定性從句和無動詞從句帶有本身的主語,在構造上與主句不產生幹系,是以成為自力主格構造。實在,固然叫做自力主格構造,並非真實的自力,它照樣一種附屬分句,在句中有多種感化。如:表緣故原由、表前提、表方法、表隨同、表時光等,在句中平日起狀語感化。偶然還可以做定語 。
若何斷定gmat測驗是不是須要應用自力主格呢?
自力主格裏的N與主語的主語必定是不同樣的,但有必定的接洽。
eg:220. (27530-!-item-!-188;#058&002469) (GWD-24-8)
The results of the company's cost-cutting measures are evident in its profits, which increased five percent during the first three months of this year after it fell over the last two years.
A. which increased five percent during the first three months of this year after it fell
B. which had increased five percent during the first three months of this year after it had fallen
C. which have increased five percent during the first three months of this year after falling
D. with a five percent increase during the first three months of this year after falling
E. with a five percent increase during the first three months of this year after having fallen
gmat入門依據以上原則,可以快速地消除DE選項。
自力主格的一樣平常情勢:
N+非謂語動詞 (留意,這裏的N和主語的主語是不同樣的)
N+(being)+adj/adv/介詞短語
N+N
eg. He put on his socks,wrong side out.
Our teacher came into the room,book in hand.
Lunch over,he left the house.But he was thinking.
He fought the wolf,a stick his only weapon
那末若何選取適合的動詞情勢呢?
在自力主格構造中,主格詞與分詞構成邏輯主謂幹系時,用如今分詞。如:Winter coming ,it gets colder and colder.一句中,“春季”和“到來”是邏輯主謂幹系,用如今分詞;主格詞與分詞構成邏輯動賓幹系 時,用曩昔分詞。如:More money given,we should have sent more employees to the mother company to get trained.一句中,“money”和“give”是動賓幹系(被動幹系),用曩昔分詞。
且這裏有個特別情形,在誇大自力主格裏的行動產生在主語行動以前時,應用having- done構造
eg: The snow having stopped,she went out to sweep the snow in the yard.