練習(xí)步驟：
step1：劃分句子結(jié)構(gòu)，找句子主干
step2: 確定修飾詞，修飾短語或修飾從句的修飾關(guān)系
step3: 確定代詞指代對象
劍橋雅思9
Reading Passage 2
長難句：We want to know whether life evolves naturally if given the right conditions, or whether there is something very special about the Earth to have fostered the variety of life forms that we see around us on the planet.