1. Whose home is the ocean?
2. What may we not know about fish?
3. How deep can fish swim in the ocean?
4. Where does the anglerfish live?
5. Why can the anglerfish still find food though there is no sunlight at such a depth?

1. Tens of thousands of fish.
2. How they cannot explore every part.
3. 8,200 meters.
4. About 2,000 meters deep.
5. They can produce light themselves.

四、首字母填空
The World Wildlife Fund (WWF) is the world's leading environmental protection organization. Every two years, it publishes the Living Planet Report—a report (1)Earth's overall health.
This (2)report was released on Oct 30. It says that populations of mammals (哺乳动物), birds, (3)and reptiles (爬行动物) have fallen by an average of 60 percent since 1970.
The report (4)shows that Earth has lost about half of its shallow water coral (浅水珊瑚) in the past 30 years. One-fifth of the Amazon rainforest has disappeared in (5)50 years.
All over the world, people are cutting down (6), using too much water from rivers and (7)oceans with plastic. Only a quarter of the world's total land area is now free of (远离) human (8).
The challenge we face is to find ways to meet the needs of our (9)population while protecting the environment, the WWF said. The group suggested that different countries should work (10)to find solutions (方法).

1.on 2.year's 3.fish 4.also 5.just 6.forests 7.filling 8.activities 9.growing 10.together

1. 句意：一份关于地球整体健康状况的报告。结合首字母o，填on（关于）。
2. 句意：今年的报告于10月30日发布。结合首字母y，填year's（今年的）。
3. 句意：哺乳动物、鸟类、鱼类和爬行动物的数量。结合首字母f及并列关系，填fish（鱼类）。
4. 句意：报告还显示。结合首字母a，填also（还，也）。
5. 句意：仅在50年内。结合首字母j，填just（仅仅）。
6. 句意：人们正在砍伐森林。结合首字母f及常识，填forests（森林，复数）。
7. 句意：用塑料污染海洋。结合首字母f，填filling（fill...with...用...填满/污染，现在分词）。
8. 句意：远离人类活动。结合首字母a，填activities（活动，复数）。
9. 句意：不断增长的人口需求。结合首字母g，填growing（增长的，形容词）。
10. 句意：不同国家应该共同努力。结合首字母t，填together（一起）。