题目

—Why do you put up these English cards on the wall? —Only in this way________the English words. A．I can remember                                  B．can I remember C．I remember                                      D．remember I 答案：B 当only引导状语或状语从句放在句首加强语气时，句子经常使用倒装语序。已知函数f（x）满足f（1）=1，对于任意的实数x，y都满足f（x+y）=f（x）+f（y）+2（x+y）+1，若x∈N*，则函数f（x）的解析式为（　　）A．f（x）=4x2-4x+1B．f（x）=4x2+1C．f（x）=x2-5x-5D．f（x）=x2+3x-3