《2025年高中同步单元滚动强化卷高中英语选择性必修第三册北师大版》

B
As a geothermal scientist, I know that boiling rivers exist — but they are always near volcanoes. You need a lot of heat to make that much water boil. We were working in the volcanic gap, a 950-mile-long area that covers most of Peru, where there hasn't been active volcanism for the past two million years.
Yet we'd found the Shanaya, a name originated from "heating thing". My measurements averaged 190°F ~ 195°F. The locals think it's so hot because of the Yacumama, or "water mother" — a spirit who gives birth to waters — represented by a snake-head-shaped rock at the origin of the heated water.
I had to cut my way through the bush at the side of the river to take temperature readings. All the while, right next to me was this very hot, fast-flowing body of water. A friend at the nearest village had told me, "Use your feet like eyes." You can't see heat, but you can feel it when you step near it. I wore sandals (凉鞋).
I was at a part of the river measuring 210 °F, standing on a rock the size of a sheet or paper, when the rain fell. It was like a curtain rising. The temperature differential between the rain and the river caused a whiteout. I couldn't see, but I whistled to let my partner know I was OK.
At 130°F flesh cooks, and the water around me was nearing twice that. My eyes would have cooked in less than a minute, and I couldn't have seen how to get out. I saw rats fall in, their eyes turning milky white. I kept whistling.
After 15 minutes the rain stopped and the steam cleared. A hard rain in most situations would have been nothing important. Here, for a matter of minutes, it thinned the line between researching and being boiled alive.
24. What do we know about boiling rivers?
A. They are always found not far from volcanoes.
B. They were discovered two million years ago.
C. Geothermal scientists doubt their existence.
D. Most of them can be found in Peru.
25. Why did the author wore sandals?
A. It was convenient to wear sandals in the river.
B. He was advised to do so by his friend.
C. He wanted to feel heat with his feet.
D. The temperature was high there.
26. What happened to the author when it rained?
A. He signaled to his partner for help.
B. He was in danger of losing his life.
C. He raised a curtain to protect himself.
D. He fell down because of his blindness.
27. What is the best title for the text?
A. Water near volcanoes
B. Milky white eyes
C. Boiling point
D. A hard rain

答案： 24.A 细节理解题。根据第一段的“As a geothermal scientist，I know that boiling rivers exist — but they are always near volcanoes.”可知，沸腾的河流总是在离火山不远的地方。
25.C 细节理解题。根据第三段的“A friend at...I wore sandals.”可知，作者穿着凉鞋，他想用脚感觉热度。
26.B 推理判断题。根据第五段的“I saw rats fall in，their eyes turning milky white.”可知，下雨的时候，作者会面临失去生命的危险。
27.C 标题归纳题。根据全文和第一段的“As a geothermal scientist，I know that boiling rivers exist — but they are always near volcanoes.”可知，文章讲述的是作者在沸腾的河流探险的故事，故C项适合作文章标题。