【句子】

Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact.
骨头看起来是脆硬的,但它也有一定的弹性,使得骨骼能够承受相当的打击。

【解析】

1.rigid adj. 坚硬的,严格的,固执的,僵硬的,刻板的

①Beliefs have ossified into rigid dogma.
信仰已僵化为不可更动的教条。

②He's very rigid in his ideas.
他的想法非常固执。

2.exhibit

1)v. 展览,陈列,展示,表现

Rolled up his sleeve to exhibit the scar.
卷起袖子来显示露出伤疤

2)n. 展品,展览

I find some of the exhibit fine in quality and beautiful in design.
我发现有些展品质量优良,设计美观。

3)exhibition,exhibit,show,exposition,fair,display辨析

这些名词都可表示“展览”或“展览会”之意。

exhibition:一般指较正规的展览会。

exhibit:多指个人或团体陈列的展览品,规模可大可小。

show:指艺术品、农产品、工业品或商品等的任何形式的公开展览。

exposition:多指大型博览会或国际博览会。

fair:侧重指为促销商品而举办的展览会或商品交易会。

display:指展销会,商店橱窗或柜台上的陈列品。

3.elasticity n. 弹力,弹性,伸缩性,灵活性

Having or exhibiting no elasticity.
无弹性的无弹性的或显示出没有弹性的

4.skeleton n. 骨架,纲要,骨骼,骨瘦如柴的人或动物,家丑

①The shell of a snail is its skeleton.
蜗牛的壳是它的骨骼。

②She told me about the skeleton of her new novel.
她把自己一部新小说的梗概对我讲了一遍。

5. considerable,considerate的区别和用法

considerable, considerate这是一对形近易混的形容词。

1)considerablea.相当大的,相当多的;值得考虑的

That family owns a considerable amount of land.
那个家族拥有大量的土地

2)consideratea.考虑周到的,体贴的,后面常跟of结构

He is always considerate of others; he is kind and sympathetic.
他总是很体谅别人,他很慈善并且富有同情心  

【练习】

She has lost her handbag with the ______ sum of $200 in it.
A extraordinary  B important  C considerable  D valuable

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