今天是晴天英文：It's sunny today。重点词汇：晴天 clear day ; fine day ; fine weather。例句：1、如果今天是晴天，我就去动物园（If it is sunny, I will go to the zoo.）。2、据天气预报说，今天是晴天（According to the weather report, it will be fine today. ）。3、你可以去散步，今天是晴天（You could go for a walk, it's sunny today. ）。4、原本以为今天是晴天，结果却下起了雨（Today was supposed to have been sunny, but it's raining.）。