Tibetan antelopes live on the plains of Tibet, Xinjiang and Qinghai. Watching them move slowly     1     the green grass, I’m     2    (strike) by their beauty and also reminded of the danger they were in. They were hunted     3    (legal) for their     4    (value) fur.

Economic development is necessary if we want to improve society. There comes     5     time when the old must give way     6     the new and it is not possible     7    (preserve) everything from our past as we move towards the future. Finding and     8    (keep) the right balance between progress and the protection of cultural sites can be a big challenge. Big challenges, however, can sometimes lead to great     9    (solve).

By     10     (share) so many digital photos over the Internet, the group hopes to promote even     11     (wide) interest around the world in China’s ancient history, culture and traditions. They also hope to     12    (far) educate people about the importance of safeguarding historic and cultural relics for future generations to understand and appreciate.     13     one researcher who is working on the project explains, “Appreciating one’s own cultural heritage is very important for understanding     14    (one). Appreciating the cultural heritage of other countries is very important for international     15    (communicate) and understanding.”

Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider     1    and taking appropriate actions and measures to reduce greenhouse gas emissions. We as individuals can also reduce our “carbon footprint” by     2    the amount of carbon dioxide our lifestyles produce. It is our responsibility     3    every opportunity to educate everyone about global warming, along with its causes and impacts, because this is the most serious issue affecting all of us on this planet. So what will you do to help?

    4    , the local authorities began to use the media to spread environmental     5    and encourage greater use of clean energy. At the same time, they started to carry out     6    regularly and fine tourist organisations for abuses.     7    these measures, it is believed that the beauty of the Li River will be preserved for generations     8    

In fifteen terrible seconds a large city lay     1    . The suffering of the people was     2    . Two-thirds of them died or were     3     during the earthquake. Thousands of families were killed and many children were left without parents.

The sound of planes could be heard     1     the city of Tangshan even when no planes were in the sky. In the city, the water pipes in some buildings     2     and burst. But the one million people of the city, who thought     3     of these events, were asleep as usual.

Later that afternoon, another big quake which was almost as strong as the first one shook Tangshan. Some of the     1     workers and doctors were     2     under the ruins. More buildings fell down. Water, food, and     3     were hard to get. People began to wonder how long the     4     would last.