Landfills are complicated structures that, when properly designed and managed, serve an important purpose. In the future, new technologies called bioreactors will be used to speed the breakdown of trash in landfills and produce more methane.
注意:此部分试题请在答题卡1上作答;8-10题在答题卡1上。
1. The passage gives a general description of the structure and use of a landfill.
2. Most of the trash that Americans generate ends up in landfills.
3. Compared with other major Industrialized countries, America buries a much higher percentage of its solid waste in landfills.
4. Landfills are like compost piles in that they speed up decomposition of the buried trash.
5. In most countries the selection of a landfill site is governed by rules and regulations.
6. In the United States the building of landfills is the job of both federal and local governments.
7. Hazardous wastes have to be treated before being dumped into landfills.
Part Ⅲ Listening Comprehension
Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the center.
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