首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
There Pictures from outer space now show us how much land has changed on earth. These images are taken by Landsat 7, a governmen
There Pictures from outer space now show us how much land has changed on earth. These images are taken by Landsat 7, a governmen
admin
2011-03-26
57
问题
There Pictures from outer space now show us how much land has changed on earth. These images are taken by Landsat 7, a government satellite. The satellites have been used for 27 years. They reveal the clear-cutting of forests in the northwestern part of the United States. Pictures show the loss of rain forests in South America.
NASA’s Darrel Williams speaks about the Landsat 7 Project. He said that an eruption caused trees to burn up in a large forest. Fifteen years later, pinkish images from space show that the trees and plant life are growing again. Williams says that clear-cut areas easily show up in the pictures. He wants Americans to look at how much land is being cleared of forests in our country.
Satellites have provided other information about changes on earth. In the past ten years, more than four miles have shrunk from glaciers in Alaska. Landsat 7 received these computer images of Glacier Bay in Alaska.
Hurricanes Floyd and Irene have damaged the coastline in North Carolina. Runoff from farms and silt have gone into the ocean according to satellite images. Loss of trees and forests have caused hotter summers in southern cities such as Atlanta, Georgia.
The Landsat 7 images are like pictures in a photo album. Instead of pictures of the family, the album shows changes around the globe in the past 25 years.
A new satellite, Terra, is going to be launched by NASA soon. It will be more advanced that Landsat 7 and will take important global pictures. Ocean temperatures and energy loss will be provided by Terra daily.
Silt and heavy run-off from farms in North Carolina were caused by ______.
选项
A、Hurricanes Irene and Floyd
B、Hurricanes Floyd and Carla
C、an eruption from a volcano
D、deforestation of trees
答案
A
解析
参见第四段。
转载请注明原文地址:https://kaotiyun.com/show/NzqC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
孔子曰:“譬如为山,未成一篑,止,吾止也;譬如平地,虽复一篑,进,吾往也。”孟子曰:“有为者,譬若掘井,掘井九仞,而不及泉,犹为弃井也。”成败之数,视此而已。孔子和孟子的话观点是否一致?和结句“成败之数,视此而已”有何联系?
Sheismakingherselfillwith______overherson’sfuture.
WhatwasE.B.White?Whatwastheauthor’spurposeforwritingchildren’sbooks?
Itriedtogetoutofthebusiness,______Ifoundimpossible.
Thesmartboyansweredeveryquestion______(intelligence).
AccordingtotheAmericanfederalgovernment,residentsofHawaiihavethelongestlife______:77.2years.
Next,thescientisttriestolearn(尽可能多)aboutit.
Wecan______witheightcomputersinthelabatthemoment,butwe’llneedacouplemorewhenthenewstaffarrive.
Youcan’texpecther______ontimeifyouarelateyourself.
Somepeopleareluckyenoughtobebornwithagoodsenseofdirectionandeveniftheyhaveonlyvisitedaplaceonce,theywil
随机试题
属于足部腹股沟反射区适应症的是()。
三相半控桥式整流电路电阻性负载时,晶闸管承受的最高电压是相电压U2的()倍。
在环形商品流通企业集团中,_______成为强化集团整体性的最基本手段。
孕妇,妊娠35周,宫缩规律,间隔5~6分钟.持续约40秒,查宫颈管消退80%,宫口扩张3cm,诊断为
A、发热骤起,头痛畏寒,咽喉红肿疼痛,皮肤潮红,痧疹隐隐B、发热渐升,咽红口干,鼻塞流涕,咳嗽频作,皮肤散在丘疹C、恶寒发热,头痛项强,呕吐频繁,时有抽搐,皮肤大块瘀斑D、壮热不解,烦躁口渴,咽喉肿痛,伴有糜烂白腐,皮疹密布
医师注册后有下列情形之一的应当注销注册,除了
由于房地产经纪活动的专业性和复杂性,房地产经纪人员必须拥有完善的知识结构,这一知识结构的核心是()。
以下不属于会计核算具体方法的是()。
毛泽东同志总结中国近代历次运动失败的教训时,曾说:“没有农民办不成大事,光有农民办不好大事。”下列事件属于“光有农民办不好大事”的是()。
如图,已知圆中两条弦AB与CD相交于点F,E是AB延长线上一点,且DF=CF=,AF:FB:BE=4:2:1.若CE与圆相切,则线段CE的长为________.
最新回复
(
0
)