5. Scientific Discovery Curse Or Blessing
New scientific discovery nearly always brings mankind a blessing. Take electricity for example. Since its discovery, it has ushered in an era of countless inventions in close connection with it. Nowadays people can read and write by means of lights instead of candles. Fire is another example of discoveries which made human beings survive in ancient times and generates electricity in modern times. Again, minerals such as oil or coal discovered by man have long been used as fuel to develop industry and agriculture.
Yet sometimes scientific discoveries may prove a curse upon the human race. As we know, everything has two sides. Electricity can shock one to death if used carelessly. Smoke from factories and gases from cars are terrible pollutants. Radium used in nuclear power plants can lead to a nuclear war.
The misuse of scientific discoveries must be prevented. Since chemical elements or substances were discovered, some have been made use of for purpose of war. Such weapons as atomic bombs or poisonous gases have proved to be destructive to mankind. Therefore, it is the whole worlds duty to prevent scientific discoveries from menacing the human race.
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2017届高三英语一轮复习课时作业2:Unit2《English around the world》(新人教版必修1)
2017届高三英语一轮复习课时作业44:语法专练四之形容词与副词
2017届高三英语一轮复习课时作业21:Unit 1《Great scientists》(新人教版必修5)
2017届高三英语一轮复习课时作业55:语法专练十五之交际用语
2017届高考英语一轮复习精品课件:Unit 4《Astronomy the science of the stars》(新人教版必修3湖北专用)
2017届高三英语一轮复习课时作业6:Unit 1《Cultural relics》(新人教版必修2)
2017届高三英语一轮复习课时作业5:Unit5 《Nelson Mandela—a modern hero》(新人教版必修1)
2017届高三英语一轮复习课时作业49:语法专练九之情态动词和虚拟语气
2017届高考英语一轮复习精品课件:Unit 4《Global warming》(新人教版选修6湖北专用)
2017届高三英语一轮复习课时作业52:语法专练十二之连词和状语从句
2017届高三英语一轮复习课时作业51:语法专练十一之名词性从句
2017届高考英语一轮复习精品课件:Unit 2《Poems》(新人教版选修6湖北专用)
2017届高三英语一轮复习课时作业33:Unit 3《Under the sea》(新人教版选修7)
2017届高三英语一轮复习课时作业53:语法专练十二之连词和状语从句
2017届高三英语一轮复习课时作业3:Unit 3《Travel journa》(新人教版必修1)
2017届高三英语一轮复习课时作业34:Unit 4《Sharing》(新人教版选修7)
2017届高三英语一轮复习课时作业7:Unit 2《The Olympic Games》(新人教版必修2)
2017届高三英语一轮复习课时作业8:Unit 3《Computers》(新人教版必修2)
2017届高三英语一轮复习课时作业26:Unit 1《Art》(新人教版选修6)
2017届高三英语一轮复习课时作业31:Unit 1《Living well》(新人教版选修7)
2017届高三英语一轮复习课时作业1:Unit 1《Friendship》(新人教版必修1)
2017届高三英语一轮复习课时作业29:Unit 4《Global warming》(新人教版选修6)
2017届高三英语一轮复习课时作业4:Unit 4《Earthquakes》(新人教版必修1)
2017届高三英语一轮复习课时作业32:Unit 2《Robots》(新人教版选修7)
2017届高三英语一轮复习课时作业9:Unit 4《Wildlife protection》(新人教版必修2)
2017届高三英语一轮复习课时作业14:Unit 3《The Million Pound Bank Note》(新人教版必修3)
2017届高三英语一轮复习课时作业11:Unit 1《Festivals around the world》(新人教版必修3)
2017届高三英语一轮复习课时作业48:语法专练八之非谓语动词
2017届高三英语一轮复习课时作业10:Unit 4《Wildlife protection》(新人教版必修2)