Ⅰ.单词拼写
1．On account of lack of human protection (保护), the number of Yangtze finless porpoise is becoming smaller and smaller, only 1,000 left up to now.
2．We're trying to raise awareness about the environment (环境) in general and air pollution in particular.
3．As is known to us, China came into existence as an independent (独立的) country in 1949.
4．Any help from you will be greatly appreciated. Please give me a reply at your earliest convenience (方便)．
5．Please decide whether the following statements are true or false (错误的)．
6．The birth of her son was a minor interruption (中断；阻断物) to her career.
7．In daily life, noise is normally considered as a harmful (有害的) factor for information detection.
8．Serving the family faithfully (忠诚地) for ten years, the dog died yesterday.
