1. That's what young Mr d’Urberville is trying to do！

點撥：what young Mr d’Urberville is trying to do是表語從句。

2. Persuaded by her mother and the children，Tess finally agreed to go．

點撥：Persuaded by her mother and the children是過去分詞短語做時間狀語，可以改為時間狀語從句，即：After she was Persuaded by her mother and the children，Tess finally agreed to go。
句中的非謂語動詞persuade與主語是被動關系，是說苔絲被家人勸說，所以用過分詞短語。

3. Then the day came when Tess，wearing her best Sunday clothes on her mother's orders，said goodbye to her family．

點撥1：when Tess，wearing her best Sunday clothes on her mother's orders，said goodbye to her family是這個句子的定語成分，是一個定語從句，修飾先行詞day。Day表示時間，在定語從句中做時間狀語，用關系副詞when來引導。

這個定語從句屬于分隔式定語從句，文中定語從句“when Tess，wearing her best Sunday clothes on her mother's orders，said goodbye to her family”大大地長于謂語“came”，所以將定語從句放置于句末，這樣使得句子不顯得頭重腳輕。

點撥2：在定語從句“when Tess，wearing her best Sunday clothes on her mother's orders，said goodbye to her family”中，“wearing her best Sunday clothes on her mother's orders”是現在分詞短語做定語，修飾Tess。