Why are you late? （你为什么迟到？） Because I missed the bus.（因为我错过了公交车。）

Why do you like reading? （你为什么喜欢阅读？） Reading can broaden my horizons and increase my knowledge.（阅读可以拓宽我的视野，增加我的知识。）

Why did you choose this job? （你为什么选择这份工作？） I chose this job because it aligns with my interests and skills.（我选择这份工作是因为它符合我的兴趣和技能。）

Why is the sky blue? （为什么天空是蓝色的？） The sky appears blue because of the scattering of sunlight by the Earth's atmosphere.（天空呈现蓝色是因为太阳光被地球大气层散射。）

Why don't you eat meat? （你为什么不吃肉？） I don't eat meat for health reasons and also to protect animals.（我出于健康原因以及保护动物的考虑不吃肉。）

Why are you so happy today? （你今天为什么这么开心？） I got a promotion at work.（我在工作中得到了晋升。）

Why did she leave the party early? （她为什么早早离开了派对？） She wasn't feeling well, so she had to go home.（她感觉不舒服，所以不得不回家。）

Why do we need to exercise regularly? （我们为什么需要定期锻炼？） Regular exercise helps keep our bodies healthy and strong.（定期锻炼有助于保持我们的身体健康和强壮。）

Why is he absent from school today? （他今天为什么没上学？） He has caught a cold and needs to rest at home.（他感冒了，需要在家休息。）

Why did you buy this book? （你为什么买这本书？） I heard it was a very interesting and educational book.（我听说这是一本非常有趣且有教育意义的书。）

Why do birds fly south in winter? （为什么鸟儿在冬天南飞？） They fly south to find warmer climates and more food sources.（它们南飞是为了寻找更温暖的气候和更多的食物来源。）

Why are you studying English? （你为什么学习英语？） English is an international language and it will be useful for my future career.（英语是一门国际语言，对我未来的职业会很有用。）

Why did you change your hairstyle? （你为什么改变发型？） I just wanted a new look.（我只是想换个新造型。）

Why does the water boil when heated? （为什么水加热时会沸腾？） When water is heated, its molecules gain energy and start to move rapidly, causing it to boil.（当水被加热时，水分子获得能量并开始快速运动，导致水沸腾。）

Why don't you join us for the game? （你为什么不加入我们玩游戏？） I have some other things to do and can't spare the time.（我有其他事情要做，抽不出时间。）

Why are you saving money? （你为什么存钱？） I'm saving money to buy a house in the future.（我存钱是为了将来买房子。）

Why did you cancel the appointment? （你为什么取消预约？） Something unexpected came up and I couldn't make it.（突然发生了一些意外情况，我去不了了。）

Why do plants need sunlight? （为什么植物需要阳光？） Plants use sunlight for photosynthesis to produce food and grow.（植物利用阳光进行光合作用来制造食物和生长。）

Why are you wearing a thick coat? （你为什么穿一件厚外套？） It's very cold outside today.（今天外面非常冷。）

Why did you start learning painting? （你为什么开始学画画？） I've always been interested in art and wanted to express myself through painting.（我一直对艺术感兴趣，想通过画画来表达自己。

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