共 15 句 · 中英对照 · 对应本级 10 个目标词
开始练这一级 →Last spring we built a solar cooker for our science fair.去年春天，我们为学校的科学展做了一台太阳能灶。 We set two black panels so that they overlap, then put a pot between them.我们把两块黑色的板子搭成「重叠」的样子，然后在中间放上一个小锅。 At noon the light was strong for a good test.中午的阳光很强，正好做一次测试。 Our teacher gave one rule: choose the optimum angle and keep it fixed.开始前老师给了一条规则：「最佳」角度选定后要一直不动。
The optical part came first, days before the real trial.「光学的」那部分最先开始，早于真正的试验好几天。 The thermal side was harder than we expected, and the first result was obscure.「热的」那一面比我们想的更难，第一个结果也「难以看清」。 Water in the pot stayed warm for hours, but it never boiled.锅里的水热了好几个小时，却始终没有沸腾。
On the second day we moved the panels to find the optimal setup.第二天我们移动板子，想找到「最适宜」的摆放方式。 The change was slow but visible.变化很慢，却看得见。 The thermometer showed only a nominal five more degrees.温度计只多显示了「名义上的」五度。 We had to presume that wind carried heat away.我们只好「假定」是风把热量带走了。
Presumably a wider box would hold more warmth inside.「据推测」，一个更宽的箱子能在里面留住更多热量。 My friend drew a funny poster to portray our struggle with the sun.我朋友画了一张滑稽的海报，来「描绘」我们和太阳较劲的样子。 The final display carried one honest portrayal of the work.最后的展板带着一份对这项工作诚实的「描绘」。 A good result does not always precede a good lesson.好的结果并不总会「先于」好的一课。
数据来源：NGSL（CC BY-SA 4.0）· ECDICT（MIT License）。短文为本项目为练习编写的配套材料。