托福听力荟萃 26

S: This doesn’t have anything to do with the lecture, Dr. Brown. It's just

something I was wondering about.

T: I'm always glad to entertain questions.

S: What I want to know is, with all our space exploration, aren't astronomers¹

concerned that were polluting space, you know with spacecrafts and satellites?

T: That is an interesting question. Well, first of all, it's important to understand

the space isn’t that ______ as you might think. More than 1000 tons of debris²

enters the earth's atmosphere every single day.

S: What? The spacecrafts don't need that much garbage?

T: No, but there are meteoroids entering our atmosphere almost constantly.

You are familiar with what the moon's surface looks like, right?

S: But we don't have these craters³ on earth. I don't understand.

T: Remember the moon's lack of atmosphere means that even small

______ make craters. But most of the meteoroids that hit the earth's

atmosphere melt or break up in the air.

S: Causing meteorite⁴? The ______ of light we see is that meteoroids breaking

up, isn't it?

T: Yes, and getting back to your question about pollution, that's one way we

could deal with the ______ of satellites and spacecraft. The truth is we do have

a lot of ______ing debris, and traveling at 10 to 20 thousand miles per hour.

S: Really? I wouldn't want to collide with anything going that fast.

T: It's a real danger for spacecraft. But we could dispose the debris by simply

sending it back into the earth's atmosphere.

S: oh, so the debris was just burned up. Well, thanks a lot, Dr. Brown.

 

 

【填空答案】

1. pristine⁵ adj. 原始的，古时的；纯朴的

2.meteoroidsn. 流星体（meteoroid的复数）；

3.streaks⁶ n. 条痕；直横条（streak的复数）

4.debris n. 碎片，残骸

5．orbitn. 轨道；vt. 绕…轨道而行vi. 盘旋；绕轨道运行

【听力原文】

S: This doesn’t have anything to do with the lecture, Dr. Brown. It's just

something I was wondering about.

T: I'm always glad to entertain questions.

S: What I want to know is, with all our space exploration, aren't astronomers

concerned that were polluting space, you know with spacecrafts and satellites?

T: That is an interesting question. Well, first of all, it's important to understand

the space isn’t that pristine as you might think. More than 1000 tons of debris

enters the earth's atmosphere every single day.

S: What? The spacecrafts don't need that much garbage?

T: No, but there are meteoroids entering our atmosphere almost constantly.

You are familiar with what the moon's surface looks like, right?

S: But we don't have these craters on earth. I don't understand.

T: Remember the moon's lack of atmosphere means that even small

meteoroids make craters. But most of the meteoroids that hit the earth's

atmosphere melt or break up in the air.

S: Causing meteorite? The streaks of light we see is that meteoroids breaking

up, isn't it?

T: Yes, and getting back to your question about pollution, that's one way we

could deal with the debris of satellites and spacecraft. The truth is we do have

a lot of orbiting debris, and traveling at 10 to 20 thousand miles per hour.

S: Really? I wouldn't want to collide with anything going that fast.

T: It's a real danger for spacecraft. But we could dispose the debris by simply

sending it back into the earth's atmosphere.

S: oh, so the debris was just burned up. Well, thanks a lot, Dr. Brown.

1 astronomers   

n.天文学者，天文学家( astronomer的名词复数 )

参考例句：

• Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
• Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪，为什么只有土星有光环。 来自《简明英汉词典》

2 debris   

n.瓦砾堆，废墟，碎片

参考例句：

• After the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。
• Bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上，导致蛀牙。

3 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》

4 meteorite   

n.陨石；流星

参考例句：

• The meteorite in Jilin Exhibition Hall is believed to be the largest in the world.吉林展览馆的陨石被认为是世界上最大的。
• The famous Murchison meteorite smashed into the Australian ground in 1969.1969年著名的默奇森陨石轰然坠落在澳大利亚。

5 pristine   

adj.原来的，古时的，原始的，纯净的，无垢的

参考例句：

• He wiped his fingers on his pristine handkerchief.他用他那块洁净的手帕擦手指。
• He wasn't about to blemish that pristine record.他本不想去玷污那清白的过去。

6 streaks   

n.（与周围有所不同的）条纹( streak的名词复数 )；（通常指不好的）特征（倾向）；（不断经历成功或失败的）一段时期v.快速移动( streak的第三人称单数 )；使布满条纹

参考例句：

• streaks of grey in her hair 她头上的绺绺白发
• Bacon has streaks of fat and streaks of lean. 咸肉中有几层肥的和几层瘦的。 来自《现代英汉综合大词典》