2016-2017学年 译林版 必修5 Unit3 Science and nature Grammar 课件 (7)
2016-2017学年 译林版 必修5   Unit3 Science and nature  Grammar 课件 (7)第3页

…they have successfully cloned the first human embryo. Thankfully,many people have recognized the importance of protecting the Yangtze river and environmental organizations and projects have been set up to deal with… … that could eventually be used to cure diseases like cancer. In China ,…as well as stem cells to be used in medical research.