[填空题]
Directions: There are 15 blanks in the passage. For each blank, some letters of the word have been given (not exceeding 3 letters). Read the passage below and think of the word which best fits each blank. Use only one word in each blank. Remember to write the answers on the Answer Sheet.

There is no doubt that the environment is in trouble. Factories burn fossil fuels which produce ac {{U}} (76) {{/U}} rain, and this kills trees. At the same time, green house gases rise into the air and contribute to global w {{U}} (77) {{/U}}, which threatens to melt the polar ice cap. Meanwhile farmers clear huge areas of rain forest in places such as the Amazon to produce feeding land for cattle or produce w {{U}} (78) {{/U}} for building. Rivers and oceans are so heavily contaminated by industrial waste that it is no longer safe to go sw {{U}} (79) {{/U}}. Cars pump out poisonous gases which we all have to breathe in. Poaching and o

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[单项选择]
Directions: There are 10 blanks in the following passage. For each numbered blank, there are 4 choices marked A, B, C and D.

From the very beginning, water has furnished man with a source of food and a highway to travel. The first civilizations arose {{U}} (76) {{/U}} water was the dominant element in the environment, a challenge {{U}} (77) {{/U}} man’s ingenuity. The Egyptians invented the 365-day calendar {{U}} (78) {{/U}} the Nile’s annual flooding. The Babylonians {{U}} (79) {{/U}} were among the most famous law-makers in ancient times, invented laws {{U}} (80) {{/U}} water usage. Water inspired the Chinese to build a 1,000 miles’ canal, a complex system {{U}} (81) {{/U}}, after 2,500 years, remains particularly in use and still commands the astonishment of engineers. But the ancients never found complete
A. in regard to
B. in response to
C. in case
D. in spite of

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