小作文： 两个时代的cutting tools made by small pieces of stone
上边的两幅图是描述1.4million year 的TOOL A的，左边是front view正面图，右边的是侧视图和背视图。下面的两幅是800000年前的 tool B ，也是左边的是正面图，右面的是侧视图和背视图。TOOL A比较粗糙，TOOL B打磨的比较好。
Main Features:(恒星
英语!)
外形比较： 根据front and back view近年的切割工具比远年的切割工具要size“大”，quality“经过更多的打磨和处理”
根据 side view 远古的比近年的工具要“薄”，换句话将更“利于切割”
功能：可以用来“砍一些树枝”，“砍草”，“切割动物的尸体”和“皮毛”
趋势（时间）：从古到今，工具的制作水平有了很大的提升。
Organization:
1st 介绍这两张图表的背景 + 功能
2nd 细节一
3rd 细节二(恒星
英语!)
4th 总结说明这些图表的一种具体的趋势
Models(范文):
Both diagrams show the cutting tools that were made by a small piece of stone 1.4 million years ago and 0.8 million years ago. Obviously, they are used for breaking off branches, cutting grass or choppinganimal bodies and skins.
Specifically, the size of 1.4-million-year-ago tools, in the front and back view, is much smaller than that of 0.8-million-year-ago ones, and the surface of the latter is far smoother than that of the former.
However, we can clearly see that the tools made 1.4 million years ago seem to be eventhinner than the ones produced 0.8 million years ago in the side view.(恒星
英语!)
According to all of information involved, it can be discovered that there is a very noticeable change in cutting tools that were done in ancienttime. In other words, humans had made a lot of progressin producing tools in the period of 0.6 million years.(恒星
英语!)
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