首页
登录
职称英语
The main reason we explore Mars is to determine if life ever existed on the
The main reason we explore Mars is to determine if life ever existed on the
游客
2024-05-10
33
管理
问题
The main reason we explore Mars is to determine if life ever existed on the planet. We have tried for centuries, starting with 【B1】______and lately with satellites, landers and rovers. We have 【B2】______ for it directly and indirectly. No luck so far. Some think life has never been there. Others think it was there in the past but is now gone. Many think why bother, but that’s a whole different story. I think we are 【B3】______in the wrong places. Here is why.
The surface of Mars is 【B4】______cold and dry. Cosmic and solar 【B5】______reach the surface by the thin atmosphere, and the soil contains strong oxidants (氧化剂) that destroy organic 【B6】______. Fat chance for life. But it wasn’t always so.
Early in its history Mars was warmer and 【B7】______enough for the development of rivers, lakes and perhaps oceans. The atmosphere was thicker and the protective magnetic (磁的) field was switched on. Mars might be 【B8】______today, but life would have been possible in the past. 【B9】______
But first we need to find a promising location, and that means reconstructing Martian history. 【B10】______, what type of minerals formed and if the geochemical conditions were compatible with life. Once promising sites are identified, we need to find out if there are 【B11】______ [br] 【B7】
选项
答案
wetter
解析
并列关系题。空格前是warmer,而and又连接两个词性和形式一致的词汇,因此空格处单词也应该是形容词的比较级。根据下文句意可知,原来火星上有河流、湖泊和海洋,可以推断出原来的火星很湿润,空格处单词应该具有“潮湿,湿润”之意。结合录音可知,答案为wetter。
转载请注明原文地址:https://tihaiku.com/zcyy/3591875.html
相关试题推荐
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
ThemainreasonweexploreMarsistodetermineiflifeeverexistedonthe
Althoughinteriordesignhasexistedsincethebeginningofarchitecture,it
Althoughinteriordesignhasexistedsincethebeginningofarchitecture,it
随机试题
Moneyreallycan’tbuyhappiness,accordingtoanewsurveyshowinglawyers
You’vebeenworkingoutregularlyforquiteawhile,butyou’renowherenear
[originaltext]W:It’samiraclethatRobertcameoutoftheaircrashalive.M:
小叶性肺炎属于()。A.纤维素性炎 B.浆液性炎 C.化脓性炎 D.出
设计——采购——建造(EPC)总承包模式的特点是()。A.承包商应负责项目的
A.丹参注射液 B.含钙、镁、铝等矿物药的中成药 C.含汞成份的药物 D.
患者,男性,35岁,自感疲劳、反复感冒,时而关节疼痛、牙龈出血和眼结膜出血。体检
自毁容貌征(Lesch-Nyhan综合征)主要是由于 A.嘌呤核苷酸从头合成障
在我国设立全国性商业银行的注册资本最低限额为()亿元人民币。A.1 B.5
某综合楼建设项目,业主将整个土建工程发包给甲承包商,将机电安装工程发包给乙承包
最新回复
(
0
)