范文：It can be expected that there will be a breakthrough in life sceience and space science in the 21st century First， scientists will conquer incurable diseases through the transformation of genes
21st century is the century of technology. Nowadays, technology is everywhere around us. The development of technology has a significant affact toward the society. Several technologies that we usually use are the
Firstly,we can open up some courses about the scientific knowledge in the kingdergatens,primary schools and middle school.Besides,some scientific knowledge can be introduced to the young through the form of
our life becomes more beautiful and comfortable. As a student, I should study hard. When I grow up,I will make contribute to people in the world. My favorite class is nature science, I believe in nearl
First of all，it makes our life more convenient.For example ,buses save up us a lot of time.Besides,it provides us more safe food just like "green food".What's more,it makes us learn much more abou
technology can make people lazier, products are made more cheaply (which can be good for companies but bad for consumers), and technology can have adverse effects on a person's health and safety.楼主，
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