十六、省略

　　1.形容詞性(定語)從句關系代詞的省略

　　(1)that, which 引導定語從句并在從句中做賓語時，可以省略。

　　(2)that引導定語從句并且從句是there be句型時，可以省略。如：

　　No one would have the time to read or listen to an account of everything there is going on in the world.

　　2.副詞性(狀語)從句的省略

　　(1)虛擬語氣句省略條件連詞if，從句采用倒裝結構。如：

　　Had it not been for the timely investment from the general public, our company would not be so thriving as it is.

　　(2)由although, as if, if, no matter + wh-, once, though, unless, until, when, where, whether, while等連詞引導的表示時間、地點、條件、讓步、方式的狀語從句，可省略主語和助動詞be,保留�瞚ng分詞、�瞖d分詞或表語。這樣省略的條件是：●從句中被省略的主語必須與主句的主語一致;●謂語動詞必須含有be;●從句必須與主語和b

　　e動詞一起省去，不可只省略主語而保留整個謂語，也不可只保留主語而省略謂語。如：

　　Though raised in San Francisco, Dave Mitchell had always preferred to record the plain facts of small-town life.

　　Although born in Chicago, the author is most famous for his stories about New York City.

　　One should never lose one’s heart when confronted with temporary difficulties.

　　3.比較從句中主語的省略

　　在這種省略結構中，也可以把than或as當成關系代詞。因為主語省略了，所以尤其要注意識別哪個詞是省略了的主語，進而選擇謂語的數、時態和語態。

　　These proposals sought to place greater restrictions on the use and copying of digital information than exist in traditional media.

　　There ought to be less anxiety over the perceived risk of getting cancer than exists in the public mind today.

　　The project requires more labor than has been put in because it is extremely difficult.

　　4.that用于引導賓語從句時，可以省略

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