关于我的发明的英语作文七十字【一】
“叮铃铃，叮铃铃”一阵急促的电话铃声响了，我一下子从海绵床上蹦起来，一把抓起话筒，看了看录音电子手表，说：“喂，是谁呀？才七点，有什么事呢？”电话那头传来秘书甜美的声音：“于博士，全球创新产品新闻发布会快开始了，不要迟到哦！”我连忙穿上白大褂，一路飞奔到了科技馆。
这时主持人恰好报到了我的名字：“下一个是我们大名鼎鼎的于博士，大家掌声欢迎。”随着一阵“啪啪啪”的掌声，我大步流星地走向了舞台，不慌不忙地从背后拿出了一个球形的机器，随后介绍道：“这是我最新研究发明的清洁球，大家看，它的颜色是环保绿色的，可以很好保护我们的眼睛。用的是最高端的环保原材料，有一级的防盗功能。”我停了停，喝了口水继续介绍着。
“它的功能很实用。如果你按蓝色的按钮，会出现“生活物品”、“家具”、“食品”这几个项目。你先点“生活用品”，它就会自动开始扫描周围待清洗的生活用品，然后稳稳当当地吸进去。过了三十秒，它就会把吸进去的东西又吐出来。这时东西不但干净，而且已经叠放整齐了，是不是特别神奇呢？”
“再点‘家具’按钮，它就会移动到家具旁边，伸出双手，从手中释放出清洁水，自动帮你清洗哦。一分钟之后，相信被它清洗过后的家具都会焕然一新，还会散发出一股淡淡的清香。”
“接着你再点‘食品’，它就会把旁边的食品吸进去。例如吸进的是一个苹果，你点下果汁字样，它就变成了苹果汁；假如你点苹果片，它就会帮你切成一片一片的。假如吸进去的是土豆呢？它就会出现炒菜字样，此时你按确认键，它会变成香喷喷的红烧土豆丝出来哦。还有很多的功能，以后有机会再向大家介绍。”
台下再次响起一阵热烈的掌声和欢呼声。主持人再次回到台上，向大家解说道：“于博士的清洁球会在20xx年1月1日上市，我们在这里等着你们来抢购。”
关于我的发明的英语作文七十字【二】
童年的时候，我做了很多有趣的事情，尤其是我读幼儿园时，每个星期六就是玩游戏。
有一次，老师教我们玩分组游戏，我们组先上。游戏结束了，我开心地跑回自己的座位，看也没看就一屁股坐了下去，只听“咚”的一声，我摔到了地上，原来我的椅子不知什么时候给人拿走了，我又气又急，又迷惑不解：椅子去哪儿了呢？我扭来扭去地看，却没找到椅子。这时另一组同学正在讲台上玩游戏，大家的眼睛全盯着他们看。我看到邻组的王红在台上玩游戏，她的椅子空着，我就偷偷地把她的椅子搬了过来，坐了下来。
不久，游戏结束了，王红兴冲冲地回到座位。我偷偷地注视着她，只见她也和我一样，看也不看就一屁股坐了下去，还摔了个四脚朝天。“哈……”我刚笑出声来，又赶紧忍住了，心想：千万别让她发现是我拿了她的椅子啊！我赶紧坐正身子，一本正经看着讲台，不敢朝她张望了。
谁知不久她却和李小平吵了起来，原来她怀疑是李小平拿了她的椅子，因为之前李小平的椅子断了一条腿，李小平就在那站着，等老师换椅子。听着她们吵来吵去，我这才弄清楚，原来我的椅子是被李小平拿去了，害我们各摔一跤的人是李小平，这真让人哭笑不得。后来，我们三个都被老师批评了一顿。可我想着我和王小红摔跤的样子，却笑了起来，后来大家都笑了，老师也没说什么了。
童年的这些事，现在回想起来还让我忍不住笑。
关于我的发明的英语作文七十字【三】
Supposing I have seventy-two changes, I'd like to change into a big fire to make the World warm.
Supposing I have seventy-two changes, I'd like to change into a sturdy old pine to protect from wind and sand.
Supposing I have seventy-two changes, I'd like to change into a cup of tea to offer our teachers.
Supposing I have seventy-two changes, I'd like to change into a good medicine to make all patients healthy.
Supposing I have seventy-two changes, I'd like to change into a big building to let all the sufferers live in and consist a big family.
Supposing I have seventy-two changes, I'd like to change into ...
In a word, I would try my best to let happiness and friendship live in the world for ever.
关于我的发明的英语作文七十字【四】
Elephants are the biggest wild animals in land, in the world. But now, they are also in danger. Let me tell something to you about them.
Elephants are big and strong and they are grey. They have long trunks and tusks, so they look a little dangerous. But in fact, they’re friendly towards each other and hardly hunt people.
Elephants have ears like fans, they make them look bigger and bigger.
They live in a group together for many years, they’re a big family. They also have good hearing and good sense of smell. Elephants can do lots of things if people train them. For example, they can carry heavy things, can do as a vehicle, ext.
Badly, it’s difficult for elephants to survive in the world usually because of people. If people sell tusks, they will make lots of money.
So, many people kill elephants for their tusks. Living areas are also an important reason of the die out of elephants.
Animals are our friends, we should protect them, or the number of wild animals will getting smaller and smaller.
