听力原文

By late summer, the rice fields of southern China have turned to gold. The time has come to bring in the harvest.
夏末的中国南部是一片璀璨的金色稻海。如今正是丰收的季节。
Nowadays, modern high-yield strains are grown throughout much of the rice lands, boosted by chemical fertilizers and reaped by combine harvesters.
现代高产人工田占据了中国的大片土地，受化学肥料的滋养并用联合收割机进行大规模收割。
This is the great rice bowl of China, producing a quarter of the world's rice.
这里是世界上最大的水稻种植区，占据世界水稻产量的四分之一。
Insects, stirred up by the noisy machines, are snapped up by gangs of red-rumped swallows, including this year's youngsters, who will have fledged several weeks ago.
被机器轰鸣惊扰的虫子，马上成为了一群红尾燕的腹中餐，包括新生儿——数周前刚刚羽翼丰满的新燕。
This could be their last good feast before they head south for the winter.
这也许是它们在动身渡冬到来前最后的聚餐了。

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重点讲解

重点讲解：
1. bring in
收获（农作物等）；
eg. Make sure how many are going to bring in the wheat tomorrow.
明天去收麦子的有多少人，要落实一下。
eg. The commune is expected to bring in more rice this year.
今年公社可望收获更多稻谷。
2. stir up
挑起，引起（不愉快的情绪或事态）；
eg. As usual, Harriet is trying to stir up trouble.
像往常一样，哈丽雅特正试图找麻烦。
eg. I thought at first that Jay had been stirring things up.
我起初认为杰伊一直在挑起事端。
3. snap up
抢购，赶紧买下（便宜或心仪之物）；
eg. Instead, analysts believe that motorists view the situation as an opportunity to snap up bargains.
分析师反而认为，汽车客户将这一情况视作降价抢购的好机会。
eg. I'd snap up his offer if I were you.
如果我是你，我就会抓住机会接受他的提议。