【聆听❤声】看不清，眯眼睛？_英语听力练习mp3下载-生活-沪江听力酷

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【聆听❤声】看不清，眯眼睛？

听力简介：

Hints:
补全对话~
不写序号

1._____________________(1句话，有个连字符)
Glad to do it. It should be a fun trip. I imagine we'll learn a lot.
I hope so. SoIi think we're getting close to our exit. So I'll keep an eye on it. For there is a sign but I can't quite make it out.
Donne, you're squinting to see the sign. Does that really help?
2.______________(2句话)
Let's see now. Light enters the eye from many directions. The lens of the eye bends these rays so that they come together at a focal point. When the rays come together at the retina, the image is in focus. If this focal point is in front of the retina, close objects are clear-nearsightedness; if it's behind the retina, distant objects are clear-farsightedness.
3._______________________________________(4句话)
Exactly. Squinting uses the eyelids to block the blurred rays that enter the pupil near its edge. Squinting is not a long-term solution to poor vision, but it sometimes helps in a pinch.
Ah, 4.__________________(2个句号，1个飘号)