题目内容

11.Eating too much fatty food,exercising too little and smoking can raise your future risk of heart disease.But there is another factor that can cause your heart problems more immediately:the air you breathe.
Previous studies have linked high exposure (暴露)to environmental pollution to an increased risk of heart problem,but two analyses now show that poor air quality can lead to heart attack or stroke (中风)within as little as a few hours after exposure.In one review of the research,scientists found that people exposed to high levels of pollutants (污染物)were up to 5% more likely to suffer a heart attack within days of exposure than those with lower exposure.A separate study of stroke patients showed that even air that the U.S.Environmental Protection Agency (EPA) considers to be of"moderate"(良好)quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12to 14hours of exposure.
The authors of both studies stress that these risks are relatively small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure.However,it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices.So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.

53.The text mainly discusses the relationship betweenA.
A.heart problems and air quality  
B.heart problems and exercising
C.heart problems and smoking  
D.heart problems and fatty food
54.The underlined word"modest"in Paragraph 3most probably meansC.
A.relatively high   
B.extremely low
C.relatively low   
D.extremely high
55.What can we learn from the text?D
A.Eating fatty food has immediate effects on your heart.
B.The EPA conducted many studies on air quality.
C.Moderate air quality is more harmful than smoking,
D.Stricter regulations on pollutants should be made.
56.The author's purpose of writing the text is most likely toA.
A.inform  
B.persuade  
C.describe   
D.entertain.

分析 本文是一篇科普文章,主要讲述了摄入过多脂肪,缺乏锻炼以及长期吸烟会增加患心脏病的风险,但最新的研究表明,另外一项我们平时不注意的东西更使我们患心脏病的风险大大增加,那就是我们所呼吸的空气.被污染的空气可导致心脏病或者中风,那么更严格的环境法规不仅仅有利于改善环境,更有利于保护公众健康.

解答 53.A 文章大意题.根据本文主题句---第一自然段的最后一句"But there is another factor that can cause your heart problems more immediately:the air you breathe."---可知本文大意是说明空气质量和心脏病发病率之间的关系,故正确答案为A.
54.C 词义猜测题.根据这句话中的信息词"small",并且后面紧跟着and,可知这个词的意思和small为同义词.modest原意是"谦虚的,温和的",由此可以推断出本文中其意思是"相对较低的",故答案选C.
55.D 推理判断题.根据文章最后一句"So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health."可知D为正确答案.
56.A 推理判断题.本文主要意思是说明人们所呼吸的空气和心脏病的发病率之间的关系,由此可知作者的写作目的是告知人们一个事实,故本题答案选A.

点评 健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文.阅读此类短文要以现象或事物为中心进行思考,理解现象产生的原因、条件和客观规律等.同时要抓住事物的特征、用途和相互关系等.由于此类文章缺乏故事情节,很多同学对此类文章感到费解.文章都是就事论事,需要逻辑推理和想象的时候较少,因此此类阅读题也没有同学们想象中的那么难,只要多加训练,就能较好地答题.

练习册系列答案
相关题目
1.Many experts say that Billy Wilder changed the history of American movies.He is often called the best movie maker Hollywood has ever had.
He was known for making movies that offered sharp social comment.Wilder was one of the first directors to do this.Between the middle l930s and the l980s,Billy Wilder made almost fifty movies.During that time he received more than twenty nominations(提名)from the Academy of Motion Picture Arts and Sciences.He won six of the Oscar awards.His movies have been seen by people around the world.
    In l944,Billy Wilder made the film Double Indemnity.Some critics said this movie established him as one of the greatest Hollywood directors.Wilder directed The Lost Weekend in 1945.Ray Milland plays the part of an alcoholic writer in the movie.It shows that alcohol rules his life,yet he does not admit it.He hides alcohol in his home and says he is not drinking.
    In l950.Wilder made Sunset Boulevard.This movie told of an aging actress in silent movies.She plans to return to movies though facing many problems.In l954,Billy Wilder became an independent producer.The next year,Wilder's first movie as an independent filmmaker was a huge success.It was The Seven Year hch.In.this movie,a married mail wants to cheat on his wife with some of his friends.In l959,Wilder made a funny movie that was very popular.It was Some Like It Hot.It tells about two jazz musicians being chased by criminals.They decide to wear women's clothes and join a band in which all the musicians were women.
    Wilder died in March,2002.He was ninety-five.A current Hollywood producer said:"Billy Wilder made movies that people will never forget."

41.The text is mainly aboutD.
A.the background of American movies
B.the development of American movies
C.Wilder's attitude to American movies
D.Wilder's achievements in American movies
42.What was Wilder famous for according to Paragraph 2?B
A.His unique style of making movies.
B.Sharp remarks on society in his movies.
C.More than twenty awards he received.
D.Almost fifty movies he produced himself.
43.Which of the following made Wilder among the greatest Hollywood directors?A
A.Double Indemnity.     B.Sunset Boulevard.
C.The Lost weekend.     D.Some Like It Hot.
44.When was The Seven Year Itch made?D
A.In l944.    B.In l945.    C.In l954.   D.In l955.
45.The text is developed mainlyA.
A.by following time order    B.by making comparisons
C.by analyzing exact data    D.by giving instructions.
6.
A.Slow Down Your Life
B.Escape Now and Then
C.Separate Your Actions
D.Allow Yourself to Be Weak
E.Relieve Pressure by Firmly Saying"No"
F.Stop Expecting Everything to Be Perfect
How to Simplify Your Life
Less is more.This is why we say:reduce things by half instead of doubling them,get rid of junk instead of piling it up,relax instead of stressing,slow down instead of speeding up.Apply these principles in your everyday life in a conscious way.You will then find yourself well along on your journey to simplification.
61.C
When you concentrate on one task,you find you have energy that you didn't even know you had.Just imagine:you are at a fair and you have to carry two heavy pigs over 100yards.If you keep grabbing one and then the other,it will take forever,because one of them will keep slipping out from under your arm and running off.But if you tie one pig in a place,pick up the other,gather all your strength and make a dash for the finish line,pause for a moment,run back and get the other one,and with great determination,carry the second pig to the finish line,then you can be sure of success.
62.E
The pressure at work is on the increase in all occupations.In the modern nuclear family,the expectations that formerly would have been shared among all the relatives are now concentrated on the individual partner.
If you have the feeling that 24hours per day are not enough for all the things you need to do,then it's not
because the day has too few hours,but because you have too many activities.A simple fact that overloaded people often tend to forget.The solution is equally simple:refuse to accept so many work assignments in your private life or your working life.
63.D
"I can handle stress"is regarded as a positive statement in the world of work.People who can handle stress are given more and more to cope with--until one day they break.
Pay careful attention to the signs that tell you that you are under more stress than you can cope with.These
signals can come from various areas of life.You become ill,or your work efficiency decreases.
If you have any of these symptoms,change your life goals and decrease your tolerance of stress.Say quite
openly,"I can't manage that."
64.F
"If only I were slimmer,more beautiful,richer,more clever,then I would be happier."This is a dream that makes a lot of people ill,depressed,and unhappy.Life has its flaws,defects,corners,and edges.Only those who accept this reality can lead a really fu]]life.
Of course there are activities in which errors are dangerous:driving a car; crossing the road.But life doesn't consist entirely of these things.In among them there is a lot of room for small and large mistakes.
65.B
Successful people all have their own places where they can withdraw in order to work.Find out which places improve your creativity.For me it's the train.When I know that I'm going to be traveling for four hours without phone calls and people knocking on my door,I find nay mind is free and I can read or write complex articles.There can be problems working on the train,of course:if the person sitting opposite you keeps talking away,or if train traps make you tired ( some people fall asleep after a few miles).

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网