1 . Through Snow’s _____________, water companies began to sell clean water and the threat of cholera around the world saw a substantial decrease.
经过斯诺的不懈努力，饮用水公司开始出售洁净水，世界各地霍乱的威胁大幅降低。

5 . With a strong _______________, one is able to overcome whatever hardships and dangers he may encounter.
有了坚定的决心，一个人就能克服他可能遇到的任何困难和危险。

6 . 【课本改编题】
The antelope population has … and in June 2015, the Tibetan antelope ______. The government, however, does not intend to stop the protection programmes, since ______ the Tibetan antelope have not yet disappeared. (根据句意完成句子)

7 . The local government ________________ regarding further industrial development. New rules were also introduced regarding tour boat routes and garbage disposal methods. (根据句意填空)

8 . The collection and transport of household waste was also improved. ________________ were closed or moved. (根据课文填空)

9 . At the age of 19, I am fit and ______________. However, when I applied to join the expedition, Shackleton thought I was too young and wasn’t qualified. (根据句意填空)