链接“学霸阅读英语 100 篇”四年级
阅读短文，选择正确的答案。
新情境·科普知识
建议用时：10 分钟
难度：★★★★★
Light and shadows are friends. They go everywhere together. You get light from the sun every day. At the same time, you get shadows.
Light can shine through the air, but it cannot shine through your body. Your body stops it from passing, so there will be a black place on the ground. This is your shadow.

At noon, the sun is over your head. Your body only stops a little light. At this time, your shadow is very short. But in the early morning or the late afternoon, the sun is low in the sky. Your body stops lots of light from passing. Around this time, your shadow is very long. That’s why your shadow is longer when the sun gets lower.
()1. 英英释义 The underlined sentence in the first paragraph means “”.
A. shadows generate(产生) light
B. light usually follows shadows
C. when we get light, we can also get shadows
()2. Light cannot shine through you because .
A. light is too weak
B. your body is tall and strong
C. your body stops light from passing
()3. 学科融合 When is your shadow longer?
① In the early morning.
② At noon.
③ In the late afternoon.
A. ①②
B. ①③
C. ②③
()4. 主旨大意 What’s the main idea of the passage?
A. The friendship between light and shadows.
B. How to create shadows.
C. Shadows appear(出现) and change because of light.

1. C 解析:第一段画线句“Light and shadows are friends.”结合后文“You get light ... At the same
time, you get shadows.”，意为“有光的时候也会有影子”，与选项 C 一致。
2. C 解析:短文提到“Your body stops it from passing”，说明身体阻挡了光线，因此光无法穿过人体，对应选项 C。
3. B 解析:短文明确提到“in the early morning or the late afternoon ... your shadow is very long”，即①和③时段影子更长，故选 B。
4. C 解析:文章先说明影子因光产生，再解释影子随光线角度变化而长短改变，核心是“影子因光而出现并变化”，对应选项 C。