By the time high school arrives,a student 's place in academic excallence or else t
How to Conserve Energy in Nature
Energy shortage is a very serious problem in the world. Many people worry that energy resources on the earth will be exhausted if we use them in an unchecked way. This, most people agree, will cause serious problems and even crisis and jeopardize the survival of mankind.
On the one hand, most people agree that the problem can be solved in one way or another. One is to conserve and save our energy. Energy refers not only to coal, oil, or natural gases but also to goods, land and water, etc. Most countries have realized the wastefulness in their using of energy. They are trying to conserve energy. For example, some countries have a daylight saving system to use less electricity for lighting. Some cities have enforced water savers at public such as restrooms and bars. Some have enforced serious penalties on overuse of electricity, water, and farming land. By these means, people hope the drain on energy resources could be slowed down.
However, conservation alone cannot solve the problem. Another way, perhaps the best I think,, is to develop new energy resources. Obviously, no matter how hard we try to save energy resources and how abundant they are, we will use them up sooner or later. I think there are many energy resources that we can develop and utilize. We don’t have to depend only on the current conventional energy resources. There are many other energy resources that we can develop such as nuclear power, waterpower and solar power. These resources, if developed, can completely replace the conventional energy and thus solve the problem of energy shortage.
Challenges and Opportunities for college students Life is full of challenges. School has to be the most challenging obstacle in the lives of youth today. Elementary school brings about a few challenges characteristic of those years spent there. There’s the challenge of coloring in the lines, a very real problem to any youngster. Or how about the challenge of remembering to raise one’s hand before one speaks? There are hundreds of rules and regulations that govern these young children. The one thing that keeps these children in line is the hope of reward. Yes ,this is the brass ring. The reward for a clean desk is an extra five minutes of recess! The prize for having all homework done, a shiny-new pencil topper! These small wonders keep small people in line. They make the children love challenge. Middle schoolis not so easy. It is not easy for the students, and it also isn’t easy for the teachers. The challenge of staying out of trouble,or wrinting that research paper---these are the new confrontations of an older, wiser guoup. This clan has outgrown the recess and pencil-topper tricks. They know that their efforts have to bring them something really usefull, so mom and pop are pulled onto the scene. How does five, ten dollars for each “A” sound? Or ,how about no telephone if one doesn’t do good in school? Need I say more? By the time high school arrives, a student’s place in academic excellence or else their unlikelihood to even graduate has been established. Little can be done now to make life’s challenges seem interesting ,especially where school comes in. The slothful are rewarded with a nice job at a gas station, a pregnant girlfriend, and a fifteen-year-old Ford. The diligent are rewarded with an SAT score of over 1100, acceptance into Yale University,and a ticket to life. By meeting the challenges of school, sicking it out, and pulling through, they are given their greatest reward: success.
Modern human civilization and progress of contemporary science and technology in particular, the rapid development of electronic computers and electronic information network technology to human social life has brought great convenience. It will not only enable us to achieve the global scope of the instant messaging, but also the global e-commerce possible, but due to limitations of network technology to cyber crime can flourish and the relevant laws and the building of the use of network lag indulgence of crime, busy busy The social life of many hidden behind the crisis. From the virtual reality community to extend the network society. Along with the rapid development of network technology to propagate a variety of network crime, no doubt become a host of social reality many of the most important risk factors. Therefore, we should do a good job in preparation for the prevention, strengthen the building of networks to strengthen moral education in the legal system improve legislation and strengthen their self-protection awareness of all mankind together to meet this challenge.
Key words: Internet crime prevention network against cyber-crime
综述：
The biggest challenge, I think there are two: the salary after graduation, can not buy a house; I learned the thinking of planned economy within the system, but I have to work in the market economy outside the system.
There are time factors and their own reasons. For example, we should learn useful knowledge during school.
最大的挑战，我认为有两个：毕业后的工资，不能买房；学的体制内计划经济的思维，却要去体制外市场经济里工作。这里面有时代因素，也有自身原因，比如在校期间的学习，要学习有用的知识。
高中的到来的时候,一个学生在学术excall ence或其他地方不大可能甚至研究生已经建立。
洪成倩尔： By the time 后多接时间点,即the time是一个短暂的时间. by the time: 英 [baɪ ðə taɪm] 美 [baɪ ðə taɪm] 到…的时候 1、可以表示将来的时间. 主句用将来完成时,而从句用一般现在时来表示将来的动作. I will have finished the work by ...
河东区15376674253： at the time和by the time区别. - ？
洪成倩尔： at the time 在……的时候 by the time 在一个时间点之前1______2______3 1是过去的一个时间点, 2是现在的一个时间点, 3是将来的一个时间点. at the time可以是1,2,3 by the time可以是1~2,2~3有问题继续问, 希望能够帮到楼主哈~ 望楼主采纳
河东区15376674253： 英语中 by the time 用在什么时态? - ？
洪成倩尔：[答案] 是 到.时候 用法:By the time+过去式+过去完成时 FOR EXPLEM:By the time I was in high school,I had gotten my first job
河东区15376674253： by the time 的用法 - ？
洪成倩尔： by the time …当……的时候,…… 通常引导一个时间状语从句,表示“到……的时候”主句则表示在此时间之前某个事件已完成.值得注意的是,当从句用过去时时,主句通常用过去完成时. 例如: 1.By the time l got to the station,the train had already gone. 2.By the time l got home, they had already left. 基本上用法只有注意这些了,用惯了就会了!
河东区15376674253： by the time 的用法 - ？
洪成倩尔：[答案] by the time 有两个意思 1.到...为止,一般要求主句用过去完成时. He had left by the time we reached home. 当我们到家的时候他已经走了. The movie had begun by the time we got there. 当我们到那儿的时候,电影已经开始了. 2)…当……的时候; 如果...
河东区15376674253： by the time 用法 - ？
洪成倩尔： by the time 1)到…时候为止; 2)…当……的时候; by the time 1)到…时候为止 通常引导一个时间状语从句,表示“到……的时候为止”主句则表示在此时间之前某个事件已完成.值得注意的是,当从句用过去时时,主句通常用过去完成时. ...
河东区15376674253： by the time 的用法它引导从句时,主句和从句各用什么时态那么by the time 引导的从句,主句什么时候用现在完成时呢 - ？
洪成倩尔：[答案] by the time …当……的时候,…… 通常引导一个时间状语从句,表示“到……的时候”主句则表示在此时间之前某个事件已完成.值得注意的是,当从句用过去时时,主句通常用过去完成时. 例如: 1.By the time l got to the station,the train had already ...
河东区15376674253： 英语中 by the time 是什么意思?用在什么时态?？
洪成倩尔： 是 到......时候 用法:By the time+过去式+过去完成时 FOR EXPLEM:By the time I was in high school,I had gotten my first job
河东区15376674253： 高中英语.by the time怎么用?关于它的语法是什么?后面跟什么时态? - ？
洪成倩尔： 1.表示将来的时间. 主句用将来完成时,而从句用一般现在时来表示将来的动作. 如:I will have finishied the work by the time my father comes back. 2.表示过去的时间. 主句用过去完成时,而从句用一般过去时. 如:He had built a lab for himself by the time he was 12 years old.
河东区15376674253： by+时间 出现用什么时态? - ？
洪成倩尔： 1、“by+时间”与动作性强的动词连用时,主句多用于完成式.by后的时间可指现在、过去或将来时间点. 如:By the time he was fourteen year sold,he had learned maths all by himself. I shall have finished it by the time you come back.By the ...
