2. 职称英语
  3. Complete the summary below.Choose NO MORE THAN THREE WORDS from the passage for

Complete the summary below.Choose NO MORE THAN THREE WORDS from the passage for

游客2024-01-08  37
问题 Complete the summary below.
Choose NO MORE THAN THREE WORDS from the passage for each answer.
Write your answers in boxes 18-25 on your answer sheet.
Exploring the ancient city of Pteria
Archaeologists began working ten years ago. They started by taking photographs of the site from the ground and then from a distance in a【D1】______. They focused on what lay below the surface using a magnetometer, which identifies variations in the magnetic field. These variations occur when the【D2】______in buried structures have changed direction as a result of great heat. They line up with the surrounding magnetic field just as a【D3】______would do.
The other remote-sensing technique employed was resistivity. This uses a【D4】______ to fire electrical pulses into the earth. The principle is that building materials like【D5】______and stone do not conduct electricity well, while【D6】______does this much more effectively. This technique is mainly employed during the【D7】______, when conditions are more favourable. Resistivity is mainly being used to【D8】______ some images generated by the magnetometer. [br] 【D2】
选项
答案 iron particles
解析 利用细节词“magnetometer”，“changed direction”和“great heat”定位于原文D段落中间“If something containing iron oxide was heavily burnt，by natural or humanactions，the iron particles in it can be permanently reoriented,like a compass needle，toalign with the Earth’s magnetic field…”，这里“heavily burnt”对应题目的“greatheat”，“reoriented”对应“changed direction”，所以正确答案为iron particles和compass／compass needle。
转载请注明原文地址:https://tihaiku.com/zcyy/3343943.html
相关试题推荐
随机试题
最新回复(0)