问题 选择题

27日返回北京。这是我国科学家首次对亚马孙河地区进行的地理和生态环境综合科学考察。据此回答38-41题。

小题1:亚马孙地区有世界最大的、被称为“地球之肺”的生态系统,对其带来严重破坏的主要是

A.热带雨林迁移农业

B.粗放的畜牧方式经营方式

C.滥捕滥杀野生动物

D.过渡引水灌溉小题2:亚马孙地区热带雨林分布面积比刚果盆地更大,原因有

①西高东低的地形,有利于东南风的深入           

②受暖流的影响大       

③受寒流的影响大   

④纬度低,热量充足  

⑤平原面积广

A.①③④

B.②④⑤

C.①②④

D.①②⑤小题3:亚马孙雨林面积减少直接导致的后果是

A.海平面上升,淹没沿海地势较低的地区

B.全球二氧化碳和氧气的平衡受到破坏,大气二氧化碳的含量上升

C.产生厄尔尼诺现象,亚马孙平原形成洪涝灾害

D.中纬度地区降水增加,欧洲西部形成干旱少雨的天气小题4:雨林被誉为世界生物基因宝库,下列说法正确的是

A.雨林受人类破坏最少,因而保存完好

B.亚马孙雨林的物种资源占全球陆地物种的一半以上

C.亚马孙雨林的减少对物种基因的影响不大

D.雨林生态的脆弱性是导致物种减少的直接原因

答案

小题1:A

小题2:D

小题3:B

小题4:D

小题1:亚马孙地区的迁移农业是土地和住所均不固定的一种原始的农业地域类型,主要是原始部族来到新的地块,便毁林、烧荒、掘穴播种,不翻耕、不施肥,就等待收获,当土壤肥力耗竭,农作物产量锐减,就另选地块。

小题2:亚马孙地区热带雨林分布面积比刚果盆地更大,原因是西高东低的地形,有利于东南信风的深入;受巴西暖流的影响大;平原面积广。

小题3:亚马孙地区有世界最大的热带雨林、被称为“地球之肺”的生态系统,减少会导致全球二氧化碳和氧气的平衡受到破坏,大气二氧化碳的含量上升。

小题4:雨林被誉为世界生物基因宝库,但热带雨林生态脆弱,遭到破坏后会导致生物多样性减少。

单项选择题

It seems that politicians around the world are thinking about the health of their countries. While in China, Chen Zhu has announced his plans for a universal health service and reform across health services. Gordon Brown, the UK Prime Minister, has also announced he is planning to make some changes in our health service.

The crux of Mr. Brown’s proposals is related to giving the NHS ( National Health Service) a greater focus on prevention, rather than just curing patients.

He is planning to introduce increased screening for common diseases such as heart disease, strokes and cancer, for example, breast cancer. In Britain there are 200,000 deaths a year from heart attacks and strokes, many of which might have been avoided if the condition had been known about.

Initially, the diagnostic (诊断的) tests will be available for those who are vulnerable, or most likely to have the disease. One example is a plan to offer all men over 65 an ultrasound test to check for problems with the main artery (动脉), a condition which kills 3,00Omen a year. The opposition have criticized Mr. Brown’s proposals, saying that they are just a trick, and claiming that there is no proper timetable for the changes. They also say that Mr. Brown is reducing the money available for the treatment of certain conditions while putting more money towards testing for them.

The NHS was founded in 1948, and is paid for by taxation. The idea is that the rich pay more towards the health service than the poor. However, in recent years there has been a great increase in the use of private health care, and it’s much quicker. The NHS waiting lists for operations can be very long, so many people who can afford it choose to pay for medical care themselves.

According to the passage, the purpose of the health reform plan in the UK is to().

A.encourage more private health care

B.focus on the prevention rather than on curing the patient

C.deal with the main artery problems

D.fight against the opposition in the UK

问答题 简答题