下面加线词的词义相同的一项是(      )

Dear Daming，

    Thanks for your letter and the wonderful photos. I like them very much.

Here are some of my photos. I'm sending them to you . In the first photo，it is snowing. I'm making a snowman with my friends. In the second one，the sun is shining and the wind is blowing. I'm flying a kite in the park. In the third one，I'm swimming in the sea. In the last one，I am with my sister Lucy. We're playing chess.

Best wishes to you and your family.

Love，

Jack

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春来到，校园中，花草树木发嫩芽，莺歌燕舞，空气中也有不少的细菌病毒在游荡…它们都属于生物，原因不包括（　　）