填空题
In this section, you will hear a lecture about Australia's
water problems. It will be played only once. For answers 21-30, complete the
notes by writing a word or a short phrase. Remember to write the answers on the
answer sheet.
Australia is {{U}}(21) {{/U}} driest continent in this
world. The evaporation rate of rainfall in Australia is {{U}}(22)
{{/U}}.
The reason for rapid drying-up of water and bare
penetrating of the soil of rainfall is that the moisture is absorbed by.
{{U}}(23) {{/U}}
In sandy soils rainwater can
{{U}}(24) {{/U}}
Water is mainly pumped up for
{{U}}(25) {{/U}}
Natural springs are located in some
parts {{U}}(26) {{/U}}
Underground water supplies about
18% of the {{U}}(27) {{/U}}
The dams store water for a
variety of functions:
· the rural irrigation {{U}}(28)
{{/U}}
· the regulation {{U}}(29) {{/U}}
· the generation {{U}}(30) {{/U}}