Dongying city in China’s Shandong Province has witnessed(目睹) ecological improvements in the Yellow River Delta, thanks to various    1    (effect) measures to improve wetland restoration and protection.

Years ago, the wetlands there    2    (threaten) due to less water from the river and other factors.    3    (protect) the wetlands ecosystem, the Yellow River Delta National Nature Reserve was established in 1992. Since then, the city    4    (carry) out several management projects and restored the biotic(生物) population in the zone.

Dongying has been adopting a comprehensive wetlands restoration model by giving high     5    (prior) to protecting the nature reserve and letting nature restore     6    (it). Over the past three years, it’s transferred(转运) 469 million cubic meters of water to the nature reserve,    7    has recovered the ecological functions of the wetlands there.

Last year, Dongying built a real-time monitoring network for bird species at the nature reserve, which helps ensure that birds are free    8    disturbance of human activity and puts the habitats of cranes and other species under key protection. As a result, the nature reserve has seen    9    obvious increase in the variety and number of bird species. Home to 371 bird species, it’s become an important stop, wintering ground and breeding place for migratory birds. Dongying is currently working to build the Yellow River Estuary National Park, which will cover 3,523 square kilometers,    10    (include) land area and sea area, to explore pathways for the protection of Delta ecology.

Jaws, the 1975 film, tells the story of a great white shark that attacks s and kills swimmers. In the opening scene, a woman swimming at night in a dark sea     1    (pull) underwater suddenly. She surfaces, cries in fear, then disappears forever.

People have always been scared of sharks, but Jaws made things even     2    (bad). It made people     3    (frighten) of sharks, especially of the great white shark. Many people who saw the film started to believe that sharks were bad animals that     4    (eat) humans. Some people stopped swimming in the sea, afraid of the horrible creature from the film. Other people started fishing for sharks,     5    (kill) as many as they could. At that time, nobody cared if sharks were killed,     6    how many were killed. People just wanted them killed.

Jaws was     7    great success, attracting huge audiences and winning many awards. It strengthened people’s long-held idea of the great white shark     8    a dangerous animal.

    9    (fortunate), not everyone who watched the film Jaws became afraid of sharks-some became interested in understanding them. Today, as we learn more about sharks, more people than ever want to protect them from     10    (extinct).

Today, giant pandas are one of the world's most well-known animals. And they are     1     (global) recognized as being a leading symbol of both China and nature conservation in general. But global interest     2     the animal only took off early in the 20th century.

The idea of the WWF's logo(标志)     3     (come) from Chi-Chi: a giant panda that arrived at London Zoo in 1961 — the same year that WWF     4     (create).

Aware of the need for a recognisable symbol that would break through all language barriers(障碍), WWF's founders agreed that the big, furry bear with her special black and white coat would make a great logo. The first sketches(草图) were done by the British environmentalist and     5     (art), Gerald Watterson.

Based on these, Sir Peter Scott, one of WWF's founders, drew     6     first logo. He said at the time that “we wanted an animal that was beautiful,     7     (endanger), and loved by many people in the world for     8     (it) attractive qualities. We also wanted an animal that had an impact(影响力) in black and white     9     (save) money on printing costs.”

The panda has since become a symbol not just for WWF,     10     for the conservation movement as a whole.

Our world has been greatly affected by global warming and it is critical (关键的) that people, young and old, join hands to fight it. Most     1    (important), children today should learn to be eco­friendly at a young age.

It is believed that the nation should ask schools     2    (have) a class about “Green Living”. Every school should teach students to know about global warming and what they can do to reduce their carbon footprints. In the classes, students could be assigned to find several     3    (solve) to energy problems while learning about their effects     4     the earth. Students also should     5    (encourage) to use what they learned in class at home.

Too many people think that global warming is not a threat, but it is one of our     6    (big) problems. Steps     7    (take) to be “green” in the school are so effective. What would children be learning if the school’s lights were always left on and there were no recycling bins?

Green living and green schools are part of     8     new wave sweeping over the nation. How will our future leaders respond after years of living in a community     9     protecting our world’s natural environment just isn’t considered important？Schools and the government should teach young people to devote     10    (they) to dealing with global warming.

    1     (doubt), Earth is becoming warmer and there is strong evidence of     2     causes the dramatic change in the global climate. Actually, the “greenhouse effect” is     3     (blame). The rise in temperature has     4     (lead) to an increase in extreme weather and natural disasters worldwide, not only     5     (cause) serious damage, but also costing human lives. To reduce greenhouse gas emissions, governments need to consider making policies and     6     (take) appropriate actions and measures while we as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce.

China     7     (make) great progress in space programme in recent years, including Yang Liwei’s successfully orbiting Earth in the Shenzhou 5 spacecraft in 2003 and Chang’e 4’s exploring the surface of the far side of the moon to make     8     (measure) and observations.

The future of space exploration remains bright.     9     the difficulties, scientists hope future discoveries will not only enables us     10     (understand) how the universe began, but also help us survive well into the future.