为什么夏天会热

Summer is hot because of the way the Earth tilts toward the sun. During summer, our part of the Earth is closer to the sun.

夏天之所以热，是因为地球向太阳倾斜。夏天时，地球的这一部分更靠近太阳。

This means we get more direct sunlight, which makes the days warmer.

这意味着我们得到更多的直射阳光，这使得天气变暖。

Another reason is that the days are longer in summer. The sun is in the sky for more hours, so it has more time to heat up the Earth. Longer days mean more sunlight and warmth.

另一个原因是夏天的白天更长。太阳在天空中停留的时间更久，因此有更多的时间加热地球。白天更长意味着有更多的阳光和温暖。

Lastly, the atmosphere can hold more moisture in the summer. This can make the air feel sticky and even hotter.

最后，大气在夏天可以容纳更多的水分。这会使空气感觉粘乎乎的，更加炎热。

So, the tilt of the Earth, longer days, and more moisture in the air all work together to make summer hot.

因此，地球的倾斜、较长的白天和空气中的更多水分共同作用，使得夏天变得炎热。