Mining Machinery Like Jaw Crusher Enjoys Rapid Development Homework Essay Sample

Due to the economic advancement, urbanization process accelerates accordingly. In addition, the infrastructure construction has also made a breakthrough. The highway, railway, water conservancy projects and affordable housing are in full swing. All these factors promote the development of economy. With the stone industry advancing so rapidly and the stone products increasing, developer puts higher demand on the stone product. The current problem confronted by stone industry is not only to produce qualified product but to face the competition in domestic industry. As the living standard is gradually improved, personalized decoration trend emerges and people pursue the tastes such as beauty, comfort and superior quality, various new type building materials have been applied in residential project instead of public places. Ceramic used to be the major material for indoor decoration and stone was the major material for external decoration of tall buildings. Nowadays, stone has been applied in the common residential project. No matter the wide application of archaized brick, polished tile and ceramic chip or the popularity of stone, they are the most accurate reflections of this change.

The hottest emerging stone enterprise will bring fine opportunities for machinery industry. Therefore, crushing machine with high efficiency, energy conservation and consumption reduction will have larger impact in future. The emergence and application of new crushing theory contribute to the development of crushing machine. Under the guidance of principle ‘more crushing and less grinding’, crushing machine is developing in the direction of large-scale, high efficiency, energy conservation and automation. The Hongxing products such as impact crusher, jaw crusher , cone crusher and mobile crushing station have been improved in technology.

Crushing machine produced by Hongxing Machinery has been widely used in various industries such as mining, metallurgy, building material, highway,.

Learner Autonomy And Background Information Of The Study

Chapter ? Introduction

1. Background information of the study

2. Significance of the study

3. Structure of the thesis

1.1Background information of the study

A great change in the concept of language teaching has taken place in the past few decades,from the teacher-centered method to the learner-centered approach. In recent years, the learner autonomy has become a hot issue in second language acquisiton. Henry Holec defined it as “the ability to take charge of one’s own learning”.Autonomous learning has been necessary for English learners for the following reasons. First, autonomous learning is considered as the ultimate goal of education,which is “learn how to learn”. Therefore, cultivating learners’ autonomy is actually cultivating the learners’ learning ability, so that they could become independent social members who would live and work successfully. Second, the teachers should help the learners to develop the attitude that learning is a lifelong process and to acquire the skills of self-directed learning. With the China’s entry into WTO, China’s success of bidding for the 2008 Olympic Games and more international corporation set their branch company in China, more and more people realize the importance of mastering English. Therefore, they started learning English. We could see it from the rapid increase in the number of the language training centers and institutions.

Language acquisition is a very complicated process, which is influenced by many factors. During the late 1970s Krashen put forward an account of SLA. In the early 1980s, this was expanded into a broader-based model, described in Krashen (1981;1982) as five linked hypotheses: acquisition/learning, monitor, natural order, input, and affective filter. The Input Hypothesis became most developed. According to this hypothesis, the learner improves and progresses along the “natural order” when he/she receives second language “input” that is.

Debate About Creationism And Evolution Theories

Through the last few centuries there has been a debate about Creationism and Evolution. The debate about how the earth and all the living being came to exist is the question. There is a very big difference between the two. Creationist believes we were created by a supreme being.

Evolutionist thinks we evolved from lower forms of animals. The media makes this a debate about religion vs. science. Evolution is taught in the schools which use to be protested by parents. Now the parents want Creation also taught in the schools along with Evolution. Charles Darwin, who was born on February 12, 1809, was inspired by the views on evolution by Jean-Baptiste, Chevalier de Lamarck.

He paid very close attention to Lamarack in his early days of theorizing evolution. Darwin had several notebooks we had written were full of notes and theories. His earliest notes, which were written in 1837-39, were mostly just thought jotted down, not really theories, or speculation. He began thinking there was two ways of explaining the patterns he saw, there was a natural cause for one species replacing another one. Or God was the one doing the replacements.

He could not see why God would replace one set of mammals in one country with another mammal from another country. He could see through natural selection this was possible. The more he studied these two subjects the more he began to discredit the Creation theory. (Eldridge) When teaching evolution there is a two step method tells us how we came to exist.

The first is the “Big Bang Theory” or there was an accidental atomic collision resulted in the shape of simple life forms. Scientists call this “abiogenesis.” Second Darwin’s theory comes into the picture. The simple life evolved over three billionyears into animals, plants and the people we are today. These two concepts are what the “theory of evolution” is. There is no proof which is.

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