克隆
Clone, one of the most astonishing and challenging biomedical techniques, is thought to be quite promising in gene savings. However, human cloning s is not only dangerous technically but also perilous to the morality and ethics, thus many ethicists, religious, political leaders, and others call for to banning human cloning for reproductive purposes and even any purpose. Nevertheless, some scientists, in spite of moral and ethical standards, insists on doing experiments on cloning humans stealthily.
The clone of human beings has been criticized by many scientists, politicians, and moralists, and even banned by some governments, for it is not only dangerous technically, but most importantly, is in defiance of our social morality. If the clone of human beings is carried out, our current moral systems may be overturned and thus the society would be in disorder.
心脏专家
A patient who suffers from heart disease may go to hospital for advice. If the physician who examines the patient has never met the illness before, he may be perplexed and ask for suggestion from a skillful doctor who is a cardiologist. It is possible that the cardiologist can find the key pathogeny at the first glance and give the correct treatment in a short time.
科技对人们生活的改变
Obviously, nowadays we can never imagine living in a world that there is no cars for traveling to offices, no televisions for watching TV shows, no cellular phones for communications with our family, and so forth. Technological advancement has knitted the world to be a seamless web of information and phone lines, in which people are able to get the requisites much more easily than ever before. When we are at work, we surf the internet for suggestions and information; when we are hungry, we call an express delivery service; when we feel tired, we book an airplane ticket to Hawaii for weekends.
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