[請益] RUNNING WATER ON MARS(TPO8)

看板TOEFL_iBT (TOEFL_iBT托福)作者orthopt (昂首闊步武陵人)時間15年前 (2011/01/04 21:25)推噓2(2推 0噓 0→)

留言2則, 2人參與討論串1/1

Paragraph 4: These ideas remain controversial. Proponents point to features such as the terraced “beaches” shown in one image, which could conceivably have been left behind as a lake or ocean evaporated and the shoreline receded. But detractors maintain that the terraces could also have been created by geological activity, perhaps related to the geologic forces that depressed the Northern Hemisphere far below the level of the south, in which case they have nothing whatever to do with Martian water. Furthermore, Mars Global Surveyor data released in 2003 seem to indicate that the Martian surface contains too few carbonate rock layers—layers containing compounds of carbon and oxygen─that should have been formed in abundance in an ancient ocean. Their absence supports the picture of a cold, dry Mars that never experienced the extended mild period required to form lakes and oceans. However, more recent data imply that at least some parts of the planet did in fact experience long periods in the past during which liquid water existed on the surface. 9. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. ○But detractors argue that geological activity may be responsible for the water associated with the terraces. ○But detractors argue that the terraces may have been formed by geological activity rather than by the presence of water. ○But detractors argue that the terraces may be related to geological forces in the Northern Hemisphere of Mars, rather than to Martian water in the south. ○But detractors argue that geological forces depressed the Northern Hemisphere so far below the level of the south that the terraces could not have been formed by water. ANS 2 我想問一下4選項的語義和原句差在那裡? -- -- 中啊...不要在這邊 ((◢███◣ ◢ 啊啊啊... ◣ ξ 沒有關係出四 ◥ │ ◥＞＜█ 不要射在裡面 █◣ 今天安全期不 ◢███◣☆ │ " □ "█ )) │ ◥██◤◥◣ *~ ◢███◣ ◤ 一 ◥─ ─█ │ ((◥▅ ▅◤ │ ▅▅ ◢◤ ◥︵︵█ 沒 " □ "█ │◢◢◣▄▄▄◢◣ │ ◢█)█(█◤ ◣ " ︶ "█ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.44.188.221