问题 单项选择题

在装置安全联锁中()会引起斯科特系统停工。

A、斯科特炉无火焰

B、斯科特反应器入口温度过高

C、急冷水PH值过低

D、尾气中H2含量过量

答案

参考答案:A

阅读理解

Deep in the Amazon forest, thousands of people still live in isolation from the rest of the world.

In a recent press release, the Brazilian government confirmed the existence of another isolated tribe of about 200 people living in the Vale do Javari reservation. The 200 people living in the Vale do Javari reservation. The reservation, located near the Peruvian border, is about the size of Portugal. At least another 14 isolated tribes, with a total population of about 2000, call the area home.

The newly observed group lives on four large straw-roofed buildings and grows corn, peanut and other crops.

Brazil’s National Indian Foundation (BNTF) first noticed the reservation in the forest using satellite maps, but it wasn’t until April that an airplane expedition was able to confirm the tribe’s existence. “The work of finding and protecting isolated groups is part of Brazilian public policy,” said the BNIF officer for Vale do Javari, Fabricio Amorim. “To confirm something like this takes years of hard work.”

BNIF estimates there are 68 isolated tribes living in the Amazon. The organization uses airplanes to avoid disturbing the tribes through personal contact, but that doesn’t mean others are so respectful of their right to privacy.

Illegal fishing, woodcutting and hunting bring people into the protected area. Oil exploration on the Peruvian side of the border is another threat. All kinds of criminals also invade the lands of the local groups, said Amorim. The outsiders can damage the land and influence the cultures of indigenous(土著的)peoples. They can also bring diseases which can wipe out the whole population that still lack even basic antibiotics(抗生素).

Brazil’s indigenous peoples won the legal right to their traditional lands in Brazil’s 1988 Constitution, which stated that all indigenous lands shall be divided and turned over to tribes within five years. Indigenous groups now control 11 percent of Brazil’s territory, including 22 percent of the Amazon.

Allowing indigenous groups the right homelands is not just a matter of human rights. The rest of the world can benefit from their knowledge. Mark Plotkin has spent years living with the people of the Amazon and learning from their traditional healers. In his lecture, he pointed out that many useful materials and knowledge, including numerous drugs, can be gained from listening to the indigenous groups of the Amazon. Besides this, they are also more effective at protecting the land, and less expensive, than hired rangers(护林人).

小题1:The underlined word in the first paragraph probably means “a state of            ”.

A.separation

B.interaction

C.satisfaction

D.excitement小题2:From the passage we can learn that the tribes in the Amazon forest             .

A.only live on a reservation designated for them

B.prefer straw-roofed buildings to wooden ones

C.keep contact with the outside world through airplanes

D.have the legal right to the land they live on小题3:Which of the following is TRUE according to Amorim?

A.Privacy violation is common among the Amazon tribes.

B.The laws dividing the lands of the tribes are far from enough.

C.Modern civilization endangers the tribes and their cultures.

D.It is hard to make public policy to protect primitive tribes.小题4:The last paragraph is mainly about              .

A.the lost human rights of the indigenous peoples

B.the benefits of protecting the primitive tribes

C.the value of traditional healing

D.the indigenous peoples as guardians of the Amazon forest

单项选择题

阅读以下文字,完成下列题。
(一)美国康奈尔大学的著名天文学家卡尔·萨根曾指出,在整个银河系中差不多有二千亿颗恒星,这些恒星中有相当一部分带有行星。在这些行星中,与地球环境近似的,估计可能多达一百万颗。既然生命能够在地球上产生和演化,那也就可能同样在这些行星上产生和演化,并发展出智慧生物。而其中必定有一部分,要比现在的人类文明更为先进。因此,这些天文学家们认为,在地球以外的别的星球上出现智慧生命,是完全可能的。
(二)但萨根却对世界各地常常报道的有人遭遇外星人的消息【 】。他认为,这些报道,都是把一些人类掌握的科技加到所谓外星人身上,所描述的外星人形象也大多是人类的变形。而在别的星球,生命进化过程千差万别,外星智慧生命的演化形态很可能与人类完全不同,其掌握的科学技术也会与人类完全两样。而且这些可能产生智慧生命的星球,离地球的距离都在几千或几万光年。因此,以为每年甚至每天都有外星人来访的说法,更是完全不现实的。
(三)萨根的看法,大致可以代表严肃的科学家们的意见。这就是说,外星智慧生命的存在,从理论上讲是完全可能的;但各种发现外星人的消息,却大都不足以为信。

根据第二段的内容,“以为每年甚至每天都有外星人来访的说法,更是完全不现实的”,其主要原因在于( )。

A.外星人可能根本就不存在

B.外星人没有掌握人类的科学技术

C.外星人生活在距今很遥远的年代

D.外星人生活在距地球很远的星球