背話題佳句：

1.In the last decades, it is advances in medical technology that have made it possible for people to live longer than in the past.

在過去的幾十年間，是醫療技術的進步使得人們比過去活的時間更長成為可能。

2.Inventions are created every day because people would like to make life easier.

發明每天都被創造著，因為人們想讓生活變得更加容易。

3.We should focus our efforts on cloning animals and stem cells to be used in medical research.

我們應該把我們的努力放在克隆動物和能用于醫學研究的干細胞上。

4.There is no doubt that we benefit a lot from the scientific advancements in many different ways.

毫無疑問，我們以許多不同的方式受益于科學的進步。

5.Thanks to the development of science and technology, human society has enjoyed continuous prosperity and more convenience.

多虧了科學技術的發展，人類社會享有了不斷的繁榮和更多的便利。

6.With the development of the Internet, many individuals favour online shopping because it is more convenient and can save shoppers’ time.

隨著互聯網的發展，很多人喜歡網上購物，因為它更方便而且能節省購物者的時間。

背話題詞：

1.keep up with 跟上……的步伐

2.come into being 產生;形成

3.on a large scale 大規模地

4.be exposed to 接觸;面對

5.be up to 取決于;符合

6.lower the cost 降低成本

7.be faithful to 忠于

8.be based on 基于

9.under control (被)控制住

10.out of control 無法控制