Running Water on
Mars
1.
a)
b)
c)
1.
a)
b)
c)
新浪博客
d)
解析：merge：to combine or join together；释义来自剑桥高级学习词典；
2.
a)
b)
c)
d)
解析：段落倒数第二句“……geologists think that they are dried-up beds of long-gone rivers that once carried rainfall on Mars from the mountains down into the valleys,……”意思是：地质学家认为它们是已经干涸的河流，这些河流曾今把降雨从山区带到峡谷。
3.
a)
b)
c)
d)
解析：relics n.遗物，遗骸；
4.
a)
b)
c)
d)
解析：Miniature is used to describe something which is very small, especially a smaller version of something which is normally much bigger.
5.
a)
b)
c)
d)
解析：回到原句“Judging from the width and depth of the channels, the flow rates must have been truly enormous-perhaps as much as a hundred times greater than the 105 tons per second carried by the grate Amazon river.”意思是：通过河道的宽度和深度判断，流水速率肯定非常大——也许是亚马逊河流每秒105吨流量的一百多倍。这句话做的对比明显就是要突出火星outflow河道的巨大流量。
6.
a)
b)
c)
d)
解析：选项一对，段落最后一句“Flooding shaped the outflow channels approximately 3 billion years ago, about the same times as the northern volcanic plains formed.”意思是：洪水在大约30亿年前塑造了outflow河道，与北方火山平原的形成处在大约同一时间。选项二对，段落第二句话“They appear only in equatorial regions and generally do not form extensive interconnected networks.”意思是：它们只出现在赤道地区并且通常不会形成广泛互联的网络。选项四正确，段落第三句“Instead, they are probably the paths taken by huge volumes of water draining from the southern highlands into the northern plains.”意思是：它们很可能是大量从南方高地到北方平原的大量水所进过的路线。因为第二句话说了它们只出现在赤道地区，然后第三句话说这是从南方到北方的水流会经过的路线，所以选项四说从赤道地区到北方也是可以的。选项三就错了，段落第四句“The onrushing water arising from these flash floods likely also formed the odd teardrop-shaped ‘islands’……”意思是：汹涌澎湃的洪水很可能会形成奇怪的泪眼状岛屿……；没有提到会把水往潮汐沙滩倒空。所以选项三错误。
7.
a)
b)
c)
d)
解析：到文章里面找数字，发现只有年份（2003）和直径（3,000），就是没找到有多少个坑。那么明显选项三的问题就没有回答。段落最后一句提到了Hellas Basin可能是被海洋覆盖的，所以选项一的问题有回答。段落第二句最后部分提到southern highlands，所以选项二的问题也有回答。段落第一句提到early period，也算是回答了选项四的问题。
8.
解析：merge：to combine or join together；释义来自剑桥高级学习词典；
2.
a)
b)
c)
d)
解析：段落倒数第二句“……geologists think that they are dried-up beds of long-gone rivers that once carried rainfall on Mars from the mountains down into the valleys,……”意思是：地质学家认为它们是已经干涸的河流，这些河流曾今把降雨从山区带到峡谷。
3.
a)
b)
c)
d)
解析：relics n.遗物，遗骸；
4.
a)
b)
c)
d)
解析：Miniature is used to describe something which is very small, especially a smaller version of something which is normally much bigger.
5.
a)
b)
c)
d)
解析：回到原句“Judging from the width and depth of the channels, the flow rates must have been truly enormous-perhaps as much as a hundred times greater than the 105 tons per second carried by the grate Amazon river.”意思是：通过河道的宽度和深度判断，流水速率肯定非常大——也许是亚马逊河流每秒105吨流量的一百多倍。这句话做的对比明显就是要突出火星outflow河道的巨大流量。
6.
a)
b)
c)
d)
解析：选项一对，段落最后一句“Flooding shaped the outflow channels approximately 3 billion years ago, about the same times as the northern volcanic plains formed.”意思是：洪水在大约30亿年前塑造了outflow河道，与北方火山平原的形成处在大约同一时间。选项二对，段落第二句话“They appear only in equatorial regions and generally do not form extensive interconnected networks.”意思是：它们只出现在赤道地区并且通常不会形成广泛互联的网络。选项四正确，段落第三句“Instead, they are probably the paths taken by huge volumes of water draining from the southern highlands into the northern plains.”意思是：它们很可能是大量从南方高地到北方平原的大量水所进过的路线。因为第二句话说了它们只出现在赤道地区，然后第三句话说这是从南方到北方的水流会经过的路线，所以选项四说从赤道地区到北方也是可以的。选项三就错了，段落第四句“The onrushing water arising from these flash floods likely also formed the odd teardrop-shaped ‘islands’……”意思是：汹涌澎湃的洪水很可能会形成奇怪的泪眼状岛屿……；没有提到会把水往潮汐沙滩倒空。所以选项三错误。
7.
a)
b)
c)
d)
解析：到文章里面找数字，发现只有年份（2003）和直径（3,000），就是没找到有多少个坑。那么明显选项三的问题就没有回答。段落最后一句提到了Hellas Basin可能是被海洋覆盖的，所以选项一的问题有回答。段落第二句最后部分提到southern highlands，所以选项二的问题也有回答。段落第一句提到early period，也算是回答了选项四的问题。
8.