题文
根据短文内容，从短文后的七个选项中选出正确的填入空白处。选项中有两项为多余选项。Evaluating Sources (来源) of health Information
Making good choices about your own health requairs reasonable evaluation. A key first step in bettering your evaluation ability is to look carefully at your sources of healthy information. Resonable evaluation includes knowing where and how to fins relevant information, how to separate fact from opinions, how to recognize poor reasoning, and how to analyze information and the reliability of sources. 小题1:
Go to the original source. Media reports often simplify the results of medical research. Find out for yourself what a study really reported, and determin whether it was based on good science. Think about the type of study. 小题2:
Watch for misleading language. Some studies will find that a behaviour “contributes to” or is “associated with” an outcome; this does not mean that a certain course must lead to a certain result. 小题3: Carefully read or listen to information in order to fully understand it.
Use your common sense. Ifa report seems too good to be true, probably it is. Be especially careful of information contained in advertisements. 小题4: Evaluate “scientific” statements carefully, and be aware of quackery(江湖骗术).
小题5: Friends and family members can be a great source of ideas and inspiration, but each of us needs to find a healthy lifestyle that works for us.
Developing the ability to evaluate reasonably and independently about the health problems will serve you well throughout your life.A．Make choice that are right for you. B．The goal of an ad is to sell you something.C．Be sure to work through the critical questions. D．And examine the findings of the original research.E. Distinguish between research reports and public health advice.
F. Be aware that information may also be incorrectly explained by an author’s point of view.
G. The following suggestions can help you sort through the health information you receive from common sources. 题型：未知难度：其他题型
答案
小题1:G
小题2:D
小题3:F
小题4:B
小题5:A
点击查看序数词知识点讲解,巩固学习
解析
【文章大意】本文是一篇说明文。文章讲述了如何鉴别一些健康信息。
小题1:G考查上下文的语境理解及逻辑推理。根据上文可知，前面的几个how to表明，你如何做出选择。而G是下面这些建议帮你鉴别正确的健康信息。顺理成章。
小题2:D考查上下文的语境理解及逻辑推理。根据关键词定位可知，本段的关键词是：original source。只有D选项一致。
小题3:F考查上下文的语境理解及逻辑推理。根据上文举例，如：contribute to，associated with可知，要注意解释的欺骗性。故选F。
小题4:B考查上下文的语境理解及逻辑推理。根据上文报道似乎很真实，就是为了诱导你买东西。故选B。
小题5:A考查上下文的语境理解及逻辑推理。最后总结做出适合你的选择，朋友和家人是主意的好的来源。
考点
据考高分专家说，试题“根据短文内容，从短文后的七个选项中选出正.....”主要考查你对 [序数词 ]考点的理解。序数词
序数词的概念：
表示顺序的数称为序数词。如：first, second, third, fourth。
序数词的构成与用法：
1、序数词的构成：
①一般来说，是由相应的基数词加词尾th构成。
例：four＋th→fourth
six＋th→sixth
seven＋th→seventh
ten＋th→tenth
②下面这些基数词在变为序数词时，有特殊的变化。
例：one→first
two→second
three→third
five→fifth
eight→eighth
nine→ninth
twelve→twelfth
③十位整数序数词的构成方法是将基数词的词y变成i，然后再加eth。
例：twenty→twentieth
thirty→thirtieth
forty→fortieth
ninety→ninetieth
④两位或两位以上的基数词变成序数词时，仅将个位数变成序数词。
例：twenty－one→twenty－first
thirty－five→thirty－fifth
a hundred and fifty－three→a hundred and fifty－third
2、序数词的用法：
①序数词在使用时，一般加上定冠词。
例：the first book
the second floor
the third day
the fourth week．
②序数词在多数情况下都用作定语，有的也可以作表语、主语和宾语。
例：The may1st is Labour Day. 五月一日是劳动节。
My room is on the second floor. 我的房间在二楼。
The first is larger than the secon.（主语）第一个比第二个大。
Read the book from the first.（宾语）从开头读这本书。
You'll be the sixth to write.（表语）你将是第六个写的。
③序数词的前面可以加上不定冠词，用来表示“再一”，“又一”的意思。
例：You may have a third try. 你可以第三次尝试。
序数词知识体系：
约数的表达方法：
用tens/dozens/scores/hundreds/thousands/millions of 表示“几十、几百、上千、成千上万”等。
如：The boy bought dozens of pencils.
Thousands of people died in the earthquake.
注意： (A)：dozen, score, hundred, thousand, million等表示确切数量时，不用复数。
如：five dozen (of) eggs 五打鸡蛋
hree hundred people 三百个人
分数词的构成和用法：
1）分数词构成法：
分数词（FractionalNumerals）由基数词和序数词构成，基数词代表分子，序数词代表分母。除了分子为1的情况下，序数词都要用复数形式：
如：1/4：one-fourth
5/9：five-ninths
2/3：two-thirds
17/5：three and two-fifths
7/12：seven-twelfths
379/8：forty-seven and three-eighths
此外还有下面表示法：
如：1/2：a(one) half
1/4：a(one) quarter
3/4：three-quarters
9/4：two and a quarter
3/2：one and half
31/4：seven and three quarters
