19．Luckily，we'd brought a road map without _______ we would have lost our way．（　　）
A．itB．thatC．thisD．which

分析 幸運的是，我們買了一張地圖，如果沒有這張地圖我們就會迷路了．

解答 答案：D
解析：分析句子結(jié)構(gòu)及結(jié)合句意可知，without及其后的部分為定語從句．定語從句的先行詞是指物的map"地圖"，且定語從句中含有介詞without；故只能使用關(guān)系代詞which引導(dǎo)定語從句．綜上，本題答案為D選項．拓展：定語從句正常的語序是：we would have lost our way without which （the map）．

點評 本題考查定語從句，做此類題目時一定要仔細分析句子結(jié)構(gòu)準(zhǔn)確判斷出哪是定語從句及定語從句所缺成分，以及該成分由什么來充當(dāng)．

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