4．A　空前的内容是在建议向辅导员请教，那么空处应该说的是辅导员的作用——老师和你之间的调解人，故A项符合语境。

　　5．F　后一句说“让家长与老师见面解决问题”，这说明需要家长的参与，故F项符合语境。

　　三、语法填空

　　(2016·山西大同期末)

　　There is no doubt __1__ the earth is becoming warmer but there is fierce debate over whether it is human activity that has caused this global warming or whether it is just a natural phenomenon.

　　Many scientists like Dr. Janice Foster believe that people have caused the increase in the earth's temperature __2__ burning fossil fuels like coal, natural gas and oil to produce energy __3__ byproducts are called “greenhouse” gases, the most important one __4__ (be) carbon dioxide. These gases trap heat from the sun and therefore warm the earth, without which the earth would be about thirty three degrees Celsius cooler __5__ it is. But the increased amount of carbon dioxide means that __6__ (much)heat energy is trapped in the atmosphere, __7__ (cause)the global temperature to go __8__.

　　On __9__ other hand, scientists like George Hambley believe that any warming will be mild with few bad __10__ (environment) consequences and more carbon dioxide is actually a positive thing.

　　答案与解析　

　　语篇解读　本文主要讲述了与地球变暖有关的情况。

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