本节课主要从上节课单词的复习，课上听力材料单词以及课上听力材料分析三个方面展开。现在就跟着百利天下小编一起来学习吧!希望可以帮助考生在考试中取得高分!
一.回顾单词
Concern，civil engineers土木工程师，erosion侵蚀，beaches海滩，statistics统计，coast海滨，Gulf of Mexico墨西哥湾，for instance举例，average平均，feet英尺，geologist地质学家，environmentalist环境工作者，warn强调，someway设法，seawall海塘，stabilizing坚固，speed up加速，destruction破坏，flow流动，gentle温和的，lessen减少，wash up洗手，shore海岸，vertical垂直的，shoreline海岸线
二.本节课单词
Cave山洞，formation形成，in addition to除…之外，describe描述，technical技术的，convey传达，sense of…的感觉，adventure冒险，passage way通道，frequently时常，figure认为，nearby在附近，blow风吹，entrance入口，enormous巨大的，amounts of大量的，maintain维持，effort努力，energy level能级，tend to be倾向于，be concerned about关心，get out of摆脱，take care of注意，ocean wave海浪，stuff东西，carbonic acid碳酸，trickle down向下滴流，sculpt雕刻，sulfuric acid硫酸，rise up上升。
三.听力材料的分析
1.key points
to share the experiences of visiting caves-some technical aspects about caves & the sense of adventure-the information of the La Chagire cave-the details for the share
2.main points
Hello ,everybody, I am here today, because I visited caves all over North America. Since you are going to study cave formations. Dr. Bow asked me to come and share some of my experiences with you.
然后我们来看一下cave是什么?A cave or cavern is a natural underground space large enough for a human to enter. The term applies to natural cavities some part of which is in total darkness.
关于cave的一些背景知识，世界七大奇洞
①墨西哥的水晶洞，是世界上最大的自然水晶洞
②阿曼MajlisalJinn洞穴，是世界上第二大洞穴
③怀特摩萤火虫洞：萤火虫的天堂
④艾斯瑞塞维尔特冰洞：对男人而言最大的冰冻
⑤委内瑞拉的魔鬼洞：宽度可以使两架直升飞机在其中穿行
⑥美国奇异洞穴深渊：每周大陆最深的洞穴
⑦中国东中洞穴：是一所学校18：28
Main topic：
In addition，to describe some technical aspects, I would convey the sense of adventure that cavers share.
注意：
Q1: What is the lecture mainly about?
To share the experience of visiting caves.
Q2: What has the speaker found?
Part1(1)
Recently, I visited the La Chagire cave in New Mexico, my dream has always been to discover a new passage way. I had a chance here, because La Chagire is so large that discoveries arc frequently made there.
Part1(2) The cave itself wasn’t even discovered until 1986. However, people in the area had figured that there must be a large cave nearby, because of the strong wind that blew from behind the rock that covered the entrance.这个山洞在
PART 1(3)
Enormous amounts of air enter and exit the cave in order to maintain the balance of pressure with the outside atmosphere.
Part2(1)
When I climbed into the cave, I had to fight 45 mile-an-hour winds. After all that effort, I had to be extra careful about maintaining my energy level.
Part2(2)
People who are tired tend to be careless, and may be more concerned about getting out of the cave than taking care of it.
Part2(3)
There are formations in La Chagire that look like ocean waves, Christmas trees and other stuff no one has ever seen before.
Part2(4)
Caves are usually created by carbonic acid that trickles down from above, but this cave was sculpted out by very powerful sulfuric acid that rose up from below.
所以，我们可以综合以上信息来回答第二个问题，There are formations in La Chagire that look like ocean waves, Christmas trees and other stuff no one has ever seen before.
最后，我们来看一下key points：这篇文章主要是to share the sense of adventure in La Chagire cave,从special finding of La Chagire cave和Its cause of formation来讲述。
以上就是百利天下小编要和大家分享的托福听力中地质类的讲座，希望可以帮助考生在考试中取得高分!
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