[关于长方形与正方形的认识怎样设计小学教学方案？]拿四根棍子，四根比一下，都一样长就可以用钉子钉成一个正方形，反之则否，长方形同理. 老师口述：“在日常生活中，我们见到的物体有各种形状（老师边说边拿出一本书给大家看），大家看，这是一...+阅读

1。 Technology made communication a whole lot easier。 With things such as internet we can now talk to our family and friends on the other side of earth。 2。 Technology made transportation a lot quicker, with vehicles like planes and jets we can now go anywhere we want much faster。 3。 With high technology we can now achieve what human workers alone cannot。 Machines can go where humans can't(e。 g。 undersea), plus, they do the work better than humans, too。4。 Technology means convenience, while machine helps us do our work, and our time is being saved, and we can spend that time on more meaningful things。 -------------------那个，我就不打翻译了啊。。。要的话给我发消息。

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