1 . The main reason was ______ (它们栖息地的消失) due to the increasing area of rice growing and fish farming along the Yangtze river in history.（根据汉语提示完成句子）

2 . It would be a great ________ (lose) if we do not seize this opportunity. (所给词的适当形式填空)

3 . ____________ (栖息地丧失) causes some animals to be in danger of ____________ (extinct). (根据汉语提示完成句子)

5 . When he was at a _______, he was lucky to hear a nice voice from a loud speaker announcing that his_______ luggage was found.(lose) (所给词的适当形式填空)

6 . ________(丧失) of sleep is a common problem in modern society, affecting the quality of people’s life. （根据汉语提示单词拼写）

7 . The flood made the farmers suffer great _________ (lose). (所给词的适当形式填空)

8 . The city suffered________ in the earthquake.
这个城市在地震中遭受了巨大的损失。

10 . The heavy rain made his business suffer a great ________ (损失). (根据汉语提示单词拼写)