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    PEOPLE who have had a painful experience may wish they could wipe the memory from their minds. Researchers at Johns Hopkins University, US, say that this may someday be possible.
    A drug remains far off, but researchers have laid a foundation with their discovery that proteins can be removed from the brain’s fear center to cut memories forever.
    Previous research had already shown that a special behavior therapy (治疗) could cut painful memories. But relapse (复发) was possible because the memory hadn’t necessarily disappeared.
    By looking at that process, Richard Huganir and Roger Clem, two researchers from Johns Hopkins University, discovered a “window of vulnerability (脆弱的窗口)” when proteins are created. The proteins help signals travel within the brain as painful memories are made. Because the proteins are unstable, they can be easily removed with drugs or behavior therapy to cut memories.
    Researchers used mice to find the window, but think the process would be the same in humans. They used electric shocks to make the mice fear a certain sound. The sound triggered (触发) the creation of the proteins, called calcium-permeable (钙通透性) AMPARS, which formed for a day or two in the fear centers of the mice’s brains.
    The researchers are working on ways to reopen the window by recalling (唤醒) the painful memory and using drugs to remove the protein. They published their report online last month in Science Express.
    Their research has drawn interest and concern from experts in mental healthcare.
    Kate Farinholt, a mental health expert with the National Alliance on Mental Illness, Maryland, US, said many people suffering from a painful event might benefit from erasing a memory. “Erasing a memory and then everything bad built on that is an amazing idea, and I can see all sorts of potential ,” she said.
    But there are a lot of unanswered questions, too.
    “Completely deleting a memory is a little scary. How do you remove a memory without removing a part of someone’s life,” Farinholt said. “And is it best to do that, considering that people grow and learn from their experiences?”
    小题1:What have researchers at Johns Hopkins University found recently?  
    A．A new drug to erase painful memories from human brains.
    B．A special behavior therapy to erase painful memories.
    C．Removing certain proteins from the brain can wipe painful memories.
    D．Erasing memory damages a patient’s brain functions.
    小题2:What makes it possible to erase painful memories according to Paragraph 4? 
    A．The way the brain cells are created.
    B．The unstable character of the proteins in the brain.
    C．The strength of the signals the proteins send.
    D．The drugs that can stop the formation of memories.
    小题3:Which of the following shows the stages of the process done on mice? 
    a. removal of fear proteins            b. making mice fear a certain sound
    c. fear proteins created in mice brains   d. making mice recall painful memories
    A．a-b-c-dB．d-a-c-bC．b-c-d-aD．c-b-d-a
    小题4:What is Kate Farinholt’s opinion of the research? 
    A．People may lose the chance to learn from their bad experiences.
    B．The research will be a great breakthrough in treating painful memories.
    C．People could suffer long-term memory loss.
    D．People could forget happy memories as well.

    本题信息：英语阅读理解难度一般 来源:未知
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新闻报道类阅读

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • 新闻报道类阅读

新闻报道类阅读的概念：

阅读理解的选材明显地呈现出关注实际生活的趋势，这种趋势与当前基础教育改革的目标是一致的，而中学生学习语言的根本目标与基础教育学会求知，学会做事，学会合作，学会做人的目标是一致的，真实新颖的选材对基础英语教学课程改革具有重要的反作用。


新闻报道类阅读理解技巧点拨：       

        新闻报道类类文章有一共同特点，即都是由标题（Headline）、导语（Lead）、主体（Mainbody）、背景（Background）和结尾（End）五部分构成。标题是新闻报道中心思想高度而又精辟的概括；导语位于新闻报道的首段，高度概括新闻事实；主体则对导语概括的新闻事实进行详细叙述；新闻背景是指新闻事实之外，对新闻事实或新闻事实的某个部分进行解释或补充的材料；结尾往往是新闻事件的结果或动态展望，也是中心思想的概括并常常与新闻导语相呼应。
        新闻报道中的导语非常重要，它位于文章的第一段，通过它点出新闻的主题，五个W和一个H(When,Where,Who,What,Why和How)通常是构成一则完整消息不可缺少的要素。文章往往呈现出“倒金字塔”的特征，因此读懂首句或首段至关重要。
       另外，从句的使用也是此类文章的一大语言特色，因为从句信息量大，适合新闻报道的要求。此外，大量的副词和插入语的使用也是此类文章的特点。为使文章更客观、更具信服力，常用The study said…, Scientists believe that…Experts said…, It's reported that…, According to the survey…等语言。同事在阅读过程中，我们要对材料所提供信息如when, where, who, how, why等进行提问，将信息迅速提炼出来。


新闻报道类阅读应试策略：

【命题趋势】
阅读理解的选材明显地呈现出关注实际生活的趋势，这种趋势与当前基础教育改革的目标是一致的，而中学生学习语言的根本目标与基础教育学会求知，学会做事，学会合作，学会做人的目标是一致的，真实新颖的选材对基础英语教学课程改革具有重要的反作用。时文报道就在文章中体现了这一要求。主要表现在以下几个方面：
1、反映海内外事件，文章结构严谨，内容贴近生活，用现代英语反映现代生活。
2、如果是新闻报道，都有比较固定的写作格式，如文首通常有报道的地点或时间，第一句话常常是文章的导语，有助于了解文章的大致内容和主题。
3、如果是新闻报道则是记叙文，有地点、时间、人物、事物等要素。
4、有许多大量反映当代社会变化的新词汇和表达方式。
5、命题既重细节，又重推理和主旨。
6、大背景中的小事件，大事件中的小插曲往往是选材的热点。
【应试对策】
1、在平时学习中，关注生活，阅读新闻报道和广告类文章、把阅读时事文章作为学习英语的重要途径。
2、了解新的词汇和表达方式。如：tsunami海啸，MP3players(MP3)播放器，well_offsociety小康社会等。
3、抓住文章主题，准确捕捉细节和内涵，进行合理的推理。
4、品味新闻的标题，联系平时所积累的知识，为了解材料大意作铺垫。
5、了解新闻报道的特殊规律，其内容和多含何人、何地、何事、何时等，阅读时要抓住新闻的这一主要特点去理解判断。
6、要注意文中以黑体、大写、下划线等方式加以提示的文字，因为这很有可能是材料的核心或至少是一部分内容的概括。


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