1. 這是個什么詞？（基礎篇）

詞：by-product

英英釋義：an unplanned additional result of something that you do

例句：A happy by-product of the trip was that she found her Mr Right.

2. 體會這個詞 （進階篇）

“by-product”是名詞，它最基本的意思是“副產品”，常用來表示“附帶產生的結果”，這種結果可以是意外收獲，也可能是不幸產物，因此常常可以用來替換 side effect，result 等詞。我們通過幾個例句掌握它的用法。

比如我們學習一門語言，順帶的好處是提升了文化意識和交流技能，就可以說：

Cultural awareness and communication skills are the by-product of learning a language.

出門旅游沒想到遇到了自己的真命天子：

A happy by-product of the trip was that she found her Mr Right.

拼多多的創始人黃崢在浙江大學讀書時入選了 Melton Foundation 的項目培養計劃，有機會與其它國家的年輕人交流。他后來說這段經歷的一個意外收獲是自己很早就習慣了印度口音，對之后的學習工作都有很大幫助：

A by-product of this was that I got used to Indian English very early on. It helped tremendously later when I went to the U.S. for graduate school and work, listen to my Indian teachers and communicate with my Indian colleagues.

再讀幾個《經濟學人》中用到 by-product 的句子：

1）Securing the crippled plant has led to a troubling by-product: tonnes of radioactive water.

2）China's economic reforms since the 1980s have actually greatly increased inequality as a by-product of rapid economic growth.

3）Restrictions on the four high-flying companies are best seen as a by-product of stricter financial regulation, says Joe Ngai of McKinsey, a consultancy.

3. 從認識到會用（作業）

1）翻譯下面的句子： 失業帶來的一大惡果是犯罪率上升。

（參考翻譯：One of the by-products of unemployment is an increase in crime.）

2）結合自己的生活、學習、工作、興趣等，想象在什么語境下會用到這個表達。先簡要描述這個場景，再造句。

場景：A by-product of learning writing is to improve concentration.

造句