(IP 
  (NP-SBJ 
    (CP 
      (WHNP-1 
        (-NONE- *OP*))
                    
      (CP 
        (IP 
          (NP-SBJ 
            (-NONE- *T*-1))
                    
          (VP 
            (NP-TMP 
              (NT 过去))
                    
            (ADVP 
              (AD 曾))
                    
            (VP 
              (VP 
                (VV 到)
                    
                (NP-PN-OBJ 
                  (NR 大寨)))
                    
              (VP 
                (VCD 
                  (VV 学习)
                    
                  (VV 取经))))))
                    
        (DEC 的)))
                    
    (NP 
      (NP 
        (ADJP 
          (JJ 贫))
                    
        (NP 
          (NN 乡)))
                    
      (NP 
        (ADJP 
          (JJ 穷))
                    
        (NP 
          (NN 镇)))))
                    
  (VP 
    (VP 
      (VV 摇身一变))
                    
    (VP 
      (VV 成为)
                    
      (NP-OBJ 
        (PU “)
                    
        (QP 
          (CD 亿)
                    
          (CLP 
            (M 元)))
                    
        (NP 
          (NN 镇))
                    
        (PU ”)))))
arg0: 
                    *T*-1 
                
argm: 
                    曾 
                
argm: 
                    过去