英语听力：自然百科 金星和水星旅行指南(17)

Hawaii has some of the most spectacular shield volcanoes that are very similar to volcanoes we see on Venus.

夏威夷有着最令人叹为观止的火山，和我们在金星上看到的类似。

The huge gently sloped volcanoes of Hawaii maybe impressive, On Venus there are at least 150 ranging from this size to ten times larger.

夏威夷巨大的呈倾斜度的火山也许令人印象深刻,而在金星上至少有150倍大小。

But the observed visitors may noticed that Venus is missing something.

但是,观察者们可能注意到金星少了什么东西。

The whole impact craters¹ situation on Venus is really very puzzling.

整个金星上的陨石坑情况真的很让人迷惑。

With Magellan images we see really small number impact craters and such a small numbers about a thousand, because we know the radar² which impact craters can actually date to surface too.

我们看到麦哲伦图像真的很小数量的陨石坑,因为我们知道雷达表面的陨石坑实际上已经追溯到表面。

Some are between 300 million and 1 billion years old.

表面有些已经有3亿年间或者 10亿年的历史了。

Some time in the recent geological past it seems the entire surface of Venus was remodeled.

在最近一段时间似乎金星的地质过去曾经整个表面被改建过。

1 craters   

n.火山口( crater的名词复数 )；弹坑等

参考例句：

• Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》
• The battlefield was full of craters made by exploding shells. 战场上布满弹坑。 来自《现代英汉综合大词典》

2 radar   

n.雷达，无线电探测器

参考例句：

• They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
• Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。