Biodiversity(生物多样性), or biological diversity, is a wide-ranging concept that covers all the different kinds of plant and animal species present on earth. E-八年级英语

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题文


Biodiversity(生物多样性), or biological diversity, is a wide-ranging concept that covers all the different kinds of plant and animal species present on earth. Environmentalists believe that many millions of species exist. As all these living organisms are dependent on each other in some way, biodiversity is desirable. Any loss to the planet is actually a loss for mankind as well, and it is our responsibility to try and save Earth’s biodiversity.
Biodiversity has a vital role to play in the evolution(演变)of species. Species become extinct, but new species evolve, and this is how a balance is maintained. This may sound pretty simple, but it takes millions of years for changes to take place.
Biodiversity is also very important to the stability of food webs. Damage to them can mean disaster for an entire ecosystem. The extinction of a single animal species can put huge pressure on the numerous other species dependent on it.
Biodiversity also has an important role to play in human society. Apart from being the most intelligent species on earth, human beings are also the most dependent. We depend on nature to meet our basic needs. When we change the balance of nature to create our cities and bring about our technical advances, we knowing or unknowing cause great damage to the ecosystem. This must be understood, and the damages must be reversed(颠倒)in any way they can to ensure that the balance of the ecosystem is maintained.
小题1:We learn from the first paragraph that_________.
A biodiversity can be seen
B all living species are found on earth.
C people everywhere are aware of the importance of biodiversity
D the loss of any species can affect humans
小题2:Why can change in food webs lead to disaster?
A Because it can make people suffer from disease
B Because it can put huge pressure on some species
C Because it takes a long time for such changes to take place
D Because it will damage ninety-nine percent of species
小题3:What does the underlined word probably mean?
A 画线  B Peace  C Strength  D Variety
小题4:We learn from the last paragraph that __________.
A humans are as independent as they are intelligent
B the balance of the ecosystem is easily maintained
C nature has given us a lot
D nature is taking revenge on us
小题5:Which of the following may be the best title for this passage?
A Food Webs are Closely Related to Biodiversity.
B Biodiversity Plays a Very Important Role in Evolution
C How Biodiversity Affects Human Society.
D Understanding Biodiversity and Its Importance.

题型:阅读理解  难度:中档

答案


小题1:D
小题2:B
小题3:A
小题4:C
小题5:D

1.问题:从第一段中我们可以知道什么,答案:D任何物种的消失都会影响人类。从最后一句生物物种的的缺失也是人类的损失努力保护和拯救地球物种的多样性是我们的责任。2.问题:为什么改变食物链会导致灾难?答案:B。它会给某一物种带来巨大压力。3.问题:画线部分的单词意思可能是:不变。4.问题:最后一段我们可以知道答案C。从第一句中心句生物多样性对我们人类社会也起着重要的作用。5.下列哪项是最好的标题?理解生物多样性及其它的重要性。

据专家权威分析,试题“Biodiversity(生物多样性), or biological diversity, is a wide..”主要考查你对  科教类阅读,广告布告类阅读,历史文化类阅读,健康环保类阅读  等考点的理解。关于这些考点的“档案”如下:

科教类阅读广告布告类阅读历史文化类阅读健康环保类阅读

考点名称:科教类阅读

  • 科普类的阅读:
    科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时,要以事实为中心进行思考,抓住事物的特征、用途、相互关系等。
    如果是介绍社会现象的文章,要掌握所谈现象的内涵。

  • 答题技巧:
    1. 加强整体意识,把握文章的主要内容。在阅读的时候可给段落标上序号,并给重要的句子和
       关键词做上记号,尤其是各段中心句,为答题提供更快捷更多的信息源。
    2. 审清题干,发觉和把握试题中有效的提示性信息,确认命题的角度、阅读范围和答题方式。
    3. 定位阅读,强化对应意识。同时要注意原文利用和自我加工相结合。

考点名称:广告布告类阅读

  • 这类阅读的文本主要选取的是广告、布告类的文本类型,贴近生活和实事,时尚元素较多。因此他相对来说距离学生生活较近,对学生的时事敏感度要求也比较高。

  • 广告布告类阅读注意事项:
    1. 品味广告的标题,联系平时所积累的知识,为了解材料大意作铺垫。
    2. 要特别留意广告中包含的数字、联系人、地址等。
    3. 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。

考点名称:历史文化类阅读

  • 历史文化类阅读:
    本类题型常用的方式是夹叙夹议。叙述的目的是为了议,所以要把握其议才是主要方面。
    阅读这类文章,先弄清其引入的话题,再弄清里面人物对其不同的看法,然后理解作者本身对话题的观点看法或思考。

  • 初中英语阅读理解的解题技巧:
    一、要注意养成良好的阅读心理,阅读时要去掉杂念,心绪要安定,精神要专一,要形成一种惬意的顺向心理。
    切不可一遇到几个生词难句,就心烦意乱,失去自控能力。心理学家告诉我们,任何恐慌,过分紧张的情绪都会形成一种消极因素妨碍大脑的正常思维功能。
    因此,遇到困难一定要从容不迫,心无旁骛。这样才能对所读的文章印象清晰,理解深刻。

    二、要提高视读的速度,考阅读理解,从另一个方面来说,考的是考试速度。因此做阅读理解时,要注意培养自己快速阅读的习惯。
    切不可在个别难懂的词句上磨蹭,只要全篇理解了,个别难懂的词句可以根据上下文和构词法去猜测,去推断。

    三、对文章的评价分析,一定要坚持“词不离句,句不离篇”,要理解文章作者的原意,而不能按你自己的意愿去想当然。
    切记:一想当然,就会出错。

考点名称:健康环保类阅读

  • 健康环保类阅读:
    本类型主要是围绕饮食健康、医疗卫生及环境保护等方面选取实际的材料来设题。
    体裁有记叙文、说明文、议论文和各种应用文。

  • 健康环保类阅读题答题注意事项和技巧:
    应试生态环保类题目时,在理解文章的基础上,要重点突破——归纳主旨大意技能,因为推断是以整体理解为基础的推断能力。
    1.归纳主旨大意:
    (1)寻找具体段落的中心思想的方法是:找出每小段的主题句。
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