Listen and Choose a Response
Response 1
0.3sWould you mind dropping this form at the registrar's office if you're going that way?
1. Choose the best response.
TOEFL iBT Listening Practice
2026-09-11 · 5 Listen and Choose a Response + 1 Academic Talk · 9 questions
练习方式：原文默认隐藏。先只听音频作答；需要复盘时可点“显示同步原文”，播放过程中当前句/当前发言会自动高亮。
Listen and Choose a Response
Response 2
0.2sI wouldn't count on the shuttle arriving before the meeting starts.
2. Choose the best response.
Listen and Choose a Response
Response 3
0.3sDidn't the professor say we could revise the proposal after getting feedback?
3. Choose the best response.
Listen and Choose a Response
Response 4
0.2sI was going to sign up for the noon tutoring slot, but Priya beat me to it.
4. Choose the best response.
Listen and Choose a Response
Response 5
0.2sThe presentation slides are done—well, if you don't count the graphs.
5. Choose the best response.
Listen to an Academic Talk
Academic Talk — How Snow Fences Control Drifting
0.2sWhen engineers place snow fences along roads, the goal is not actually to stop snow at the fence.
6.7sThe fence changes airflow so that blowing snow drops out of the air in a controlled place.
12.6sAs wind approaches a fence, some air passes through openings while some is forced over it.
18.4sJust downwind, wind speed decreases, and slower air can no longer carry as many snow grains, so a drift forms there.
26.9sThis explains a seemingly counterintuitive design choice: an effective snow fence is usually porous, not solid.
34.7sA solid wall creates strong turbulence and often piles snow very close to the barrier.
40.4sA slatted fence lets part of the wind through, producing a broader, more predictable zone of reduced speed farther downwind.
47.8sPlacement matters for the same reason.
50.1sIf the fence sits right beside a road, the drift it creates may reach the pavement.
54.9sEngineers therefore install fences well upwind, often at a distance related to the fence's height.
61.0sIn other words, the fence works by deciding where the wind loses its ability to transport snow, not by catching snow like a net.
6. What is the main point of the talk?
7. According to the professor, why does a snow drift form just downwind of a fence?
8. Why does the professor contrast a solid wall with a slatted fence?
9. What can be inferred about a snow fence that is installed too close to a road?
同步原文时间点来自最终 WAV 的实际声学停顿边界分析；不是按文字长度等比例估计。音频原文另经 Gemini 3.6 Flash 独立转写核对。