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We are not yet near Hudson Bay. We have to go to the north far.

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胡锦涛与南非总统姆贝基会谈　　2007年2月6日，国家主席胡锦涛在比勒陀利亚(Pretoria)同南非总统姆贝基(Thabo Mbeki)举行会谈。双方回顾了建交近10年来中南关系特别是两国务实合作的成功经验和丰硕成果，就中南关系的未来发展达成广泛共识。双方都表示，继续从战略和全局高度看待和发展中南关系，进一步拓展两国各领域合作，加强在非洲和国际事务中的协调和配合，积极推进建立在平等互利、共同发展基础上的中南战略伙伴关系，造福两国人民，推动中南世代友好。　　胡锦涛指出，中南两国人民有着深厚的传统友谊。在南非人民反对种族隔离制度的长期斗争中，中国人民始终坚定地同南非人民站在一起。建交近10年来，中南关系呈现高速度、多领域、全方位的发展态势。经贸、科技、教育、文化、旅游、司法等领域的交流合作成果丰富，人民往来密切。双方在国际事务中保持着密切沟通和配合。中方对两国关系发展的良好势头感到高兴。中方赞赏南方奉行一个中国政策、支持中国统一大业。

The farmers know that fertilizer can accelerate the growth of these tomato plants.

What can be inferred from the passage?

We cannot compromise with those whose principles are directly opposed to our own.

Elworth’s barn burnt down，but they saved what cattle which were in the barn.

These observations indicates the extreme difficulty in cultivating this precious thing called democracy.

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Robot　　Even before the first robot was built, the subject of robotics was controversial. The word robot was coined in 1921 by a Czech playwright who wrote about a colony of machines endowed with artificial intelligence that eventually turned against3 their human creators. Although that account was fictional, the first industrial robots were in use by the early 1960s. Today, we continue to be intrigued by robots and their potential for both good and evil.　　Basically, a robot is any machine that performs work or other actions normally done by humans. Most robots are used in factories to make products such as cars and electronics. Others are used to explore underwater, in volcanoes and even on other planets.　　Robots consist of three main components: a brain, which is usually a computer; actuators and mechanical parts such as motors, wheels and gears; and sensors for detecting images, sound, temperature, motion and light. With these basic components, robots can interact with their environment and perform the tasks they are designed to carry out.　　The advantages are obvious — robots can do things humans just don’t want to do, and they are usually more cost effective. Robots can also do things more precisely than humans and allow progress in medical science and other useful advances.　　But, as with any machine, a robot can break down and even cause disaster. There’s also the possibility that wicked people will use robots for evil purposes. Yet this is also true with other forms of technology such as weapons and biological material.　　Robots will probably be used even more in the future. They will continue to do tasks where danger, repetition, cost or the need for precision prevents humans from performing. As to whether they will be used for good or evil, that depends on the nature of the humans who create them.