题目

（2018· 北京）This is _________ my father has taught me—to always face difficulties and hope for the best. A．how                                                         B．which C．that                                                          D．what 答案：D 【解析】 考查名词性从句。句意：这是我父亲教我的——总是要面对困难，抱最大的希望。“_________ my father has taught me”是表语从句，该空在从句中做teach的宾语，且表示“父亲教我的道理”，故该从句应用what引导。D选项正确。引导名词性从句时，how表方式，意为“如何”；which意为“哪一个”，tha计算：-sin60°+（-）-．