2022-10-11 00:00:00
2022-10-03 00:00:00
  • 公共英语四级阅读题型练*辅导3篇

  • 阅读,四级,公共英语
  •   The General House Effect

      The green house effect is not a new phenomenon. Scientists have known for centuries that a layer of gases naturally surrounds the earth like an insulating blanket, trapping the reflected energy of the sun and preventing it from escaping into space that is what makes the earth warm enough for people, plants and animals. However, recent human activity has boosted concentrations of greenhouse gases and enhanced their heat-trapping ability. The man culprit is carbon dioxide which scientists estimate accounts for nearly half of global warming.Co2 is released from burning fossil fuels and from clearing and burning forests.

      There are other important greenhouse gases too and they cannot be ignored. CFCs, for example, may account for 25 per cent of global warming in the text century if their production is not scaled back. But carbon dioxide is the pivotal one. The UN International panel on Climatic Change now says that Co2 levels could double within in 40 years if present rates of fossil-fuel burning and deforestation continue. That means an average temperature increase between two and four degrees centigrade and a sea-level rise of perhaps a foot by 2050.

      No one knows for certain how local weather will change as a result of this warming. But one thing is clear-it will be no picnic. Indications are that the earth will be take place not over thousands of years, but over decades. And it is the speed of the change, which makes the precise impact so difficult to predict.

      The most sophisticated com*rized climate models in the US and UK , agree that weather around the world will become more irregular and more extreme. In general, temperatures will become more towards the poles than at the equator. overall rainfall will also increase as higher temperatures boost evaporation from the seas. But the distribution of precipitation will shift. Some areas will become wetter, others will be drier. In middle latitudes, Climate zones will march poles-wards. In tropical and subtropical parts of the third would, warming will be less but the impact on a relatively stable climate will be greater.

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2022-08-23 21:44:40
2022-01-15 23:40:24
  • 公共英语二级口语经典对话3篇

  • 口语,二级,公共英语
  •   【迷你小对话

      A: I am really klutzy on the dance floor. It’s like I have two left feet and no rhythm.

      B: That’s a bogus excuse. You should take some dance lessons.

      A: My dance abilities aren’t what they used to be. Lessons wouldn’t help.

      B: You’re right. You look like a real clodhopper! You better just avoid dancing all together.

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2022-04-02 07:34:23
2022-03-05 11:07:09
  • 公共英语三级听力疑难点讲解3篇

  • 听力,三级,公共英语
  •   细节题主要是指用Wh-问题的形式对短文中有关人名、地名、时间、原因、数据、目的、年代等提出的问题,有时也包括是非判断题。由于是对细节的考查,这类题也有一定的难度。答题时除了要把握准有关细节信息,还要听清提问的角度和具体要求。这类提问方式不拘一格,依考查的内容而异,主要有以下几种形式:

      According to the passage, when/where/who/what/why/how did...?

      Which of the following adjectives best describes...?

      Which of the following (statements)is true/ not true?

      Which of the following is mentioned/not mentioned?

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2022-02-14 01:18:48
  • 公共英语三级写作3篇

  • 写作,三级,公共英语
  •   Writing

      Below are three tables showing the changes in your family since 1985. Look at the table and write an essay of about 120 words making reference to the following points.

      1. What was your home like before 1985?

      2. What are the changes after 1985?

      Changes in My Home

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2022-04-19 08:10:13
  • 公共英语一级考试书面表达3篇

  • 考试,一级,公共英语
  •   通知(通告)(Notice)

      通知(通告)是要告知某种信息而使用的一种文体。形式有:在通知(通告)上方居中写上Notice字样作为标题;无称呼语,通知中用第三人称;出通知单位或负责人名字应写在正文最后的右下方,或放在标题之上,作为标题的.一部分,这样最后不再署名;出通知的日期写在正文右下方,应在单位名的下一行。如:

      Notice

      All teachers and students are requested to meet in the auditorium at 2:30 on Wednesday afternoon to hear a report on current international affairs by Mr. Liu from the Institute of Foreign Affairs.Be sure to attend on time.

      书信的格式是:信头(发信人的地址和日期),位于信纸的右上角;信内地址(收信人的'地址,私人信件可省去),位于信头下两行左边;称呼,位于信内地址下;正文,位于称呼下,缩进两个字符;署名,位于正文下两行右边;签名,位于结尾下。如:

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2022-08-26 03:20:55
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