题目内容
Children and young people are at the heart of society. A good education enables them， as global citizens， to respond to the challenges of a complex world， and contribute to building peaceful and sustainable communities. The teachers of today and tomorrow need the skills， knowledge and support that will enable them to meet the diverse learning needs of every girl and boy. We must remember that teachers are an investment for the future. The international community and governments must stand united to support teachers and quality education worldwide， and especially in those countries where the highest number of out of school children exists.
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The sun’s energy provides us with all EXCEPT________ 查看材料
The Molecular Genealogy Research Group is building a database for the purpose of __________. 查看材料
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All the useful energy at the surface of the earth comes fromthe activity of the sun. The sun heats and feeds creatures and mankind. Eachyear it provides men with two hundred million tons of grain and nearly tenmillion tons of wood, coal, oil, natural gas, and all other fuels are stored energyfrom the sun. Some was collected by this season’s plants as carbon compounds.Some was stored by plants and trees ages ago. Even waterpower derives from thesun. Water turned into vapor by the sun fails as rain. It courses down themountains and is converted to electric power. Light transmits only the energythat comes from the sun’s outer layer, and much of this energy that is directedtowards the earth never arrives. About nine tenths of it is absorbed by theatmosphere of the earth. In fact, the earth itself gets only one half millionthof the sun&39;s entire output of radiant energy.
The sun is the source of all of the following EXCEPT ________ 查看材料
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