A．In the past century, it has been seen that the consumption of non-renewable sources of energy has caused more environmental damage than any other human activity. Electricity generated from fossil fuels such as coal and crude oil has led to high concentrations of harmful gases in the atmosphere. This has in turn led to many problems being faced today such as ozone depletion and global warming. Vehicular pollution has also been a major problem.
B．Therefore, alternative sources of energy have become very important and relevant to today’s world. These sources, such as the sun and wind, can never be exhausted and therefore are called renewable. They cause less emission and are available locally. Their use can, to a large extent, reduce chemical, radioactive, and thermal pollution. They stand out as a viable source of clean and limitless energy. These are also known as non-convent
| The bizarre antics of sleepwalkers have
puzzled police, perplexed scientists, and fascinated writers for centuries.
There is an endless supply of stories about sleepwalkers. Person have been said
to climb on steep roofs, solve mathematical problems, compose music, walk though
plate glass windows, and commit murder in their sleep. How many of these stories have a basic in fact, and how many are pure fakery No one knows, but If some of the most sensational stories should be taken with a barrel of salt, others are a matter of record. In Revere, Massachusetts, a hundred policemen combed a waterfront neighborhood for a lost boy who left his home in his sleep and woke up five hours later on a strange sofa in a strange living room, with no idea how he had gone there. There is an early medic A. The man walked sixteen miles along a dangerous road. B. The boy walked five hours in his sleep. C. The student habitually walked to the Iowa River and swam in his sleep. D. The man danced a minuet in his sleep. [填空题]
Read the following text and fill each of the numbered spaces with ONE suitable word. “Down-to-earth”means someone or something that is honest.
realistic and easy to deal with. It is a pleasure to find{{U}} (31)
{{/U}}who is down-to-earth. A person who is down-to-earth is easy to talk{{U}}
(32) {{/U}}and accepts other people as equals. A down-to-earth person
is just the{{U}} (33) {{/U}}of someone who acts important or proud.
Down-to-earth persons may be{{U}} (34) {{/U}}members of society, of course. But they do not let their importance“{{U}} (35) {{/U}} to their heads”. They do not consider themselves to be better persons than{{U}} (36) {{/U}} of less importance. Someone who is filled with his own importance and pride, {{U}} (37) {{/U}}without cause, is said to have“his nose in the air”. There is{{U}} (38) {{/U}}way a person with his nose in the air Can be down-to-earth. Americans{{U} [判断题]主要运输大巷和主要回风巷应安设主要隔爆水棚。
A.正确 B.错误 [多选题]危险化学品仓储场所火灾扑救主要存在()、中毒窒息、()、倒塌坠落等风险,易造成指战员伤亡。( )
A.爆炸冲击 B.高温高压 C.腐蚀灼伤 D.沸溢喷溅 E.流淌火围困 [单项选择]美国内战前，南方种植园奴隶主反对提高关税，主要是因为南方是( )。
A. 英国商品市场 B. 种植园奴隶制 C. 资本主义发达地区 D. 原料出口地区 我来回答: 提交
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