安装、拆卸施工起重机械，应当编制拆装方案、制定安全施工措施，并由()现场实施全过程监

某中学生在上网查询资料时，发现有人正在利用国际互联网泄露国际重要的经济情报。他及时将此事报告了有关部门。这名中学生履行了( )。

A．维护国家安全的义务

B．维护国家统一的义务

C．维护民族团结的义务

D．维护国家荣誉的义务

近年来，人们的生活水平有了极大的提高，同时也增加了许多肥胖患者，“减肥”或“瘦身”成了人们谈论的热门话题．下列关于“减肥”的说法中，不正确的是（　　）

A．肥胖是由于脂肪在体内贮存过多，为了减肥，人们要少吃高脂肪食物

B．淀粉在人体内可以转化成脂肪，为了减肥，人们要少吃容易消化吸收的淀粉食物

C．脂肪可以被分解释放能量，为了减肥，肥胖者要多运动，以增加脂肪的消耗

D．为了轻松减肥，肥胖者可以不要运动，依靠高效快速的瘦身减肥药

Cutting global warming pollution would not only make the planet healthier, it would make people healthier too, new research suggests.

Cutting carbon dioxide emissions could save millions of lives, mostly by reducing preventable deaths from heart and lung diseases, according to studies released Wednesday and published in a special issue of The Lancet British medical journal.

“Relying on fossil fuels leads to unhealthy lifestyles, increasing our chances for getting sick and in some cases takes years from our lives,” US Health and Human Services Secretary Kathleen Sebelius said in a telecast (电视广播) briefing from her home state of Kansas. “As greenhouse gas emissions go down, so do deaths from cardiovascular (心血管的) and respiratory diseases (呼吸疾病). This is not a small effect.”

Instead of looking at the health ills caused by future global warming, as past studies have done, this research looks at the immediate benefits of doing something about the problem, said Linda Birnbaum, director of the US National Institute of Environmental Health Sciences.

Some possible benefits seemed highly speculative (投机的，推测的), the researchers conceded (承认，给予), based on people driving less and walking and cycling more. Other proposals studied were more concrete and achievable, such as reducing cook stoves that burn dung (粪便), charcoal and other polluting fuels in the developing world.

And cutting carbon dioxide emissions also makes the air cleaner, reducing lung damage for millions of people, doctors said.

“Here are ways you can attack major health problems at the same time as dealing with climate change," said lead author Dr. Paul Wilkinson, an environmental epidemiologist at the London School of Hygiene and Tropical Medicine.

Wilkinson said the individual studies came up with numbers of premature deaths prevented or extra years of life added for certain places.

For example, switching to low-polluting cars in London and Delhi, India, would save 160 lost years of life in London and nearly 1,700 in Delhi for every million residents, one study found. But if people also drove less and walked or biked more, those extra saved years would soar (高耸，高涨) to more than 7,300 years in London and 12,500 years in Delhi because of less heart disease.

小题1:What does the passage mainly about?

A．How can people live longer.

B．Cutting carbon dioxide emissions saves life.

C．Global warming threatens people’s lives

D．People should stop relying on fossil fuels小题2:The new research differs from past studies in that ________.

A．it focuses on the immediate benefits of cutting carbon dioxide emissions

B．it studies the bad effects arising from future global warming

C．it is believed by most people

D．it mainly targets at developing countries小题3:According to Kathleen Sebelius ________.

A．sometimes it takes years to see the bad effects caused by consuming fossil fuels

B．without greenhouse gas emissions, people would not die of cardiovascular and respiratory diseases

C．the main reason why people get sick is that they rely on fossil fuels

D．death from cardiovascular and respiratory diseases are closely related to greenhouse gas emissions小题4:It can be inferred from the passage that ________.

A．London and Delhi have already benefited from reducing greenhouse gas emissions

B．switching to low-polluting cars would save 160 lives in London every year

C．walking and biking instead of driving will reduce the chance of heart disease

D．attacking health problems and dealing with climate change are contradictory

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