Listening is one of the four basic abilities in English learning.Listening locates the first position of English learning.So it is obvious that listening is the most important part in English learning.In the different...Listening is one of the four basic abilities in English learning.Listening locates the first position of English learning.So it is obvious that listening is the most important part in English learning.In the different kinds of English tests in college,listening comprehension is the absolutely necessary part.In the college entrance examination,the listening comprehension is the first part in the English examination.It’s important to finish the listening part well in the exam.However,in the present middle school English teaching,not only the teachers but also the students don’t’pay more attention to the listening comprehension.They just take a mechanical training.The students can’t improve their listening ability essentially.This article will analyses the present conditions of English listening teaching in the middle school,and study the basic principles of Task-based teaching approach.And it also try to combine the essential characteristics and principles of task-based teaching approach into listening teaching.Then I will discuss the correct method of listening teaching in middle school English teaching through the experimentation according to the middle school English teaching condition.展开更多
Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lo...Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lot of attention. In this paper, the system structure and mathematical signal model based on clustered structure are presented for multipoint coordinating downlink transmission, the clustered supercell configurations with static/dynamic approaches are discussed, and then optimal precod- ing design is provided for an accepted level of scheduling complexity and reduced signaling over- head. Some simulation results are given to evaluate the performance of different cell-clustering approaches, and to show that a clustered supercell size of 7 is a reasonable choice for clustered coordination with the given transmit power and the reduced feedback.展开更多
文摘Listening is one of the four basic abilities in English learning.Listening locates the first position of English learning.So it is obvious that listening is the most important part in English learning.In the different kinds of English tests in college,listening comprehension is the absolutely necessary part.In the college entrance examination,the listening comprehension is the first part in the English examination.It’s important to finish the listening part well in the exam.However,in the present middle school English teaching,not only the teachers but also the students don’t’pay more attention to the listening comprehension.They just take a mechanical training.The students can’t improve their listening ability essentially.This article will analyses the present conditions of English listening teaching in the middle school,and study the basic principles of Task-based teaching approach.And it also try to combine the essential characteristics and principles of task-based teaching approach into listening teaching.Then I will discuss the correct method of listening teaching in middle school English teaching through the experimentation according to the middle school English teaching condition.
文摘Owing to the potential for intercell cochannel interference mitigation and significant spectral efficiency improvement, coordinating transmission techniques by multiple radio access points have recently attracted a lot of attention. In this paper, the system structure and mathematical signal model based on clustered structure are presented for multipoint coordinating downlink transmission, the clustered supercell configurations with static/dynamic approaches are discussed, and then optimal precod- ing design is provided for an accepted level of scheduling complexity and reduced signaling over- head. Some simulation results are given to evaluate the performance of different cell-clustering approaches, and to show that a clustered supercell size of 7 is a reasonable choice for clustered coordination with the given transmit power and the reduced feedback.
