三伏天，孩子脸，天气说变就变。
刚才太阳还把柏油路给“烤”化了，连空气都发烫，到处都是人们“哎呦！太渴了！”的声音，一脚踩到柏油路上，就会印出一个浅浅的脚印。一滴汗珠掉落在地上，就像洒在饿滚烫的炉子上，“滋”地一声化成白烟，顿时没了影儿。
过了一会儿，就狂风大作，大风“呼噜噜”地刮着，树叶发出“沙沙沙”的声音。一些细枝“咔嚓”一声断了。
天刹那间变成漆黑的一片。豆粒大的雨点“噼里啪啦”地打在窗户上。
闪电看不惯人间，用几亿负荷的电流“嚓”地一声划破了无边的天际，又好似剪破了漆黑的瀑布；雷公也看不惯人间，发起了勃然大怒，“轰隆隆”的声音响彻天边。阵雨过后，一切又归于平静。
大街上，人们“叽里呱啦”的吵闹声；树枝上，小鸟“叽叽喳喳”的叫唤声。真是热闹非凡啊！哦，这是大自然演的一部戏，一部出色之戏！2.雷雨暑假里的一天，天空还是那样的瓦蓝瓦蓝，太阳好似一把火，烤得大地直冒烟。
忽然间，天色暗了下来，天气更加闷热，我心口就像被千斤重的大石板压住了，气也喘不过来。一会儿，刮起了阵阵狂风，地上的灰尘被刮得随处乱窜。
大树在风中剧烈摇晃，好像即将倒下似的。树枝像千万条皮鞭疯狂地抽打着，一些枯枝败叶全都落了下来。
暴风雨要来临了！ 抬头往天上看，只见滚滚乌云排山倒海地涌来，有如千万匹脱缰的野马，奋蹄扬鬃而来。忽然天空中划过了一道“之”字形的闪电，给万物披上了一层银辉；紧接着一声炸雷进了我的耳朵，让人胆战心惊。
而后，暴雨像天河决了口似的铺天盖地而来，好像要把这里吞没掉。雨越下越大，像千千万万的珠子从空中砸了下来，气势十分庞大。
大雨滂沱，电似火龙，霹雳震天。透过玻璃望去，远处什么也看不清，大地被一层水雾笼罩。
Here is the weather report for last week of Harbin. It was very strange.On Mondy,it was fine.The low temperature was 21°C and the high temperature was 29°C. On Tuesday, it was cloudy and hot. The low temperature was 23°C and the high temperature was 31°C. On Wednesday,it was rainy.The low temperature was 20°C and the high temperature was 28°C.On Thursday,it had a heavy rain.The low temperature was 20°C and the high temperature was 27°C.On Friday,we had a sunny day again.The low temperature was 22°C and the high temperature was 31°C. 这是哈尔滨上周的天气预报。
天气变化多端。周一，天是晴朗的。
最低温度是21°C最高温度是29°C。周二，多云转晴。
最低温度是23°C最高温度是31°C。周三，有雨。
最低温度是20°C最高温度是28°C。周四，有一场大雨。
最低温度是20°C最高温度是27°C。周五，我们再一次迎来阳光明媚的天气。
最低温度是22°C最高温度是31°C。
Here is the weather report for last week of Harbin. It was very strange.On Mondy,it was fine.The low temperature was 21°C and the high temperature was 29°C. On Tuesday, it was cloudy and hot. The low temperature was 23°C and the high temperature was 31°C. On Wednesday,it was rainy.The low temperature was 20°C and the high temperature was 28°C.On Thursday,it had a heavy rain.The low temperature was 20°C and the high temperature was 27°C.On Friday,we had a sunny day again.The low temperature was 22°C and the high temperature was 31°C. 这是哈尔滨上周的天气预报。
天气变化多端。周一，天是晴朗的。
最低温度是21°C最高温度是29°C。周二，多云转晴。
最低温度是23°C最高温度是31°C。周三，有雨。
最低温度是20°C最高温度是28°C。周四，有一场大雨。
最低温度是20°C最高温度是27°C。周五，我们再一次迎来阳光明媚的天气。
最低温度是22°C最高温度是31°C。
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2、于勇敢前行作文八百字(勇敢向前不畏荆棘为题的800作文)
