英语听力文摘 English Digest 131、去沙漠如何着装？

　　D: Hey, Yael, check out my new white linen¹ suit. It's going to keep me cool on my vacation to the Mojave desert.
Y: That is one snazzy suit, Don.
D: Oh, I'm stylin'. Plus, everyone knows that white reflects heat and black absorbs it. Yes, if you're out in the sun, you're better off wearing white.
Y: Not always, Don. After all, Bedouins, the nomadic² people who spend their entire lives in the desert, wear black robes.
D: But that doesn't make sense. Dark surfaces get warmer in the sun than light surfaces. You'd think the Bedouins would have figured that out by now.
Y: Don, Don, Don. Things are never that simple. You're right that the air underneath³ black fabric⁴ warms up faster than the air underneath white fabric. At the same time,   though, black fabric provides more shade than white fabric, and this decreases the amount of light that directly reaches the skin. Plus, a lot depends on the type of   clothing you're wearing. You see, warm air rises. And when it does, it's replaced by cool air. And if you happen to be wearing a robe, all that movement of the warm air   creates a breeze that sucks up cooler air from the bottom of the robe and pushes it out the top.
D: So wearing a black robe is like having a suit with a built in fan.
Y: Exactly. But again, the key is that the robe is loose-fitting. Otherwise, there isn't  enough room for the air to circulate. So if you're going to the desert in a tight-fitting suit, it's better to wear white.
D: My suit is white.
Y: And it sure is tight-fitting.
D: What's your point, Yael?
Y: Never mind.

1 linen   

n.亚麻布，亚麻线，亚麻制品；adj.亚麻布制的，亚麻的

参考例句：

• The worker is starching the linen.这名工人正在给亚麻布上浆。
• Fine linen and cotton fabrics were known as well as wool.精细的亚麻织品和棉织品像羊毛一样闻名遐迩。

2 nomadic   

adj.流浪的；游牧的

参考例句：

• This tribe still live a nomadic life.这个民族仍然过着游牧生活。
• The plowing culture and the nomadic culture are two traditional principal cultures in China.农耕文化与游牧文化是我国传统的两大主体文化。

3 underneath   

adj.在...下面，在...底下；adv.在下面

参考例句：

• Working underneath the car is always a messy job.在汽车底下工作是件脏活。
• She wore a coat with a dress underneath.她穿着一件大衣，里面套着一条连衣裙。

4 fabric   

n.织物，织品，布；构造，结构，组织

参考例句：

• The fabric will spot easily.这种织品很容易玷污。
• I don't like the pattern on the fabric.我不喜欢那块布料上的图案。