新概念英语第四册美音版课文在线听力mp3音频原文翻译译文详解

新概念英语第四册美音版课文在线听力mp3音频原文翻译译文详解

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10倍速抗遗忘轻松记单词下载
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Lesson 2 Spare that spider
2-10. Spiders are busy for at least half the year in killing insects.
【译文】蜘蛛至少有半年在忙于吃虫。
【讲解】half（形容词）the year是half（名词）of the year 的省略形式。

2-11. It is impossible to make more than the wildest guess at how many they kill,  but they are hungry creatures,  not content with only three meals a day.
【译文】它们消灭了多少昆虫，我们简直无法猜测，它们是吃不饱的动物，不满足于一日三餐。
【讲解】it是形式主语，真正的主语是 to make more than the wildest guess at how many they kill 。It is impossible to ⋯是重点句型，需熟练掌握。 not前省略了and they are 。
【单词和短语】
content：adj.  满意，满足（happy and satisfied ）。

2-12. It has been estimated  that the weight of all the insects destroyed  by spiders in Britain  in one year would be greater than the total  weight of all the human beings in the country.
【译文】据估计，在英国一年里被蜘蛛消灭的昆虫的总重量超过该国人口的总重量。
【讲解】it是形式主语，真正的主语是 the weight of all the insects destroyed⋯
in the country 。It has been estimated that ⋯是重点句型，需熟练掌握。

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