[請益] TPO 20 reading 第三篇
段四 Petrifaction may also involve a simultaneous exchange of the original
substance of a dead plant or animal with mineral matter of a different
compostion. This process is termed“replacement”because solutions have
dissolved the original material and replaced it with an equal volume of the
new substance. Replacement can be a marvelously precise process, so that
details if shell ornamentation, tree rings in wood, and delicate strutures in
bone are accurately preserved.
段五 Another type of fossilization, known as carbonization, occurs when soft
tissues are preserved as thin films of carbon.Leaves and tissue of
soft-bodied organisms such as jellyfish or worms may accumulate,become buried
and compressed,and lose their volatile constituents. The carbon often remains
behind as a blackened silhouette.
請問 23題問關於carbonization process 的 選項D
it is a more precise process of preservation than is replacement.
為何是錯的呢？
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.224.54.193
→
10/07 21:38, , 1F
10/07 21:38, 1F
→
10/07 21:39, , 2F
10/07 21:39, 2F
我的意思是說，就第五段的內容來看，
carbonization的確不是一種取代，而是保存了某些東西下來，不是嗎？
相對於第四段的Petrifaction，精確的說是一種取代，
而第五段的carbonization則剛好相反。
※ 編輯: poinsettias 來自: 61.224.54.193 (10/07 22:08)
推
10/08 13:50, , 3F
10/08 13:50, 3F
→
10/08 13:51, , 4F
10/08 13:51, 4F
→
10/08 13:52, , 5F
10/08 13:52, 5F
→
10/08 13:52, , 6F
10/08 13:52, 6F