A woman wears a face mask to protect her from polluted air in Lanzhou, China, in December．
A new study showed air pollution might put people more at risk for heart disease than scientists had thought．Kristin Miller, a doctoral student at the University of Washington, said chances of getting the disease were related to not only which city a woman lived in, but also where in the city．The study found that the effects of air pollution were often larger within cities than between cities．
The new findings make experts suspect that current pollution limits may be inadequate．Scientists examined rates of heart attack, stroke （中風(fēng)） and other cardiovascular （心臟血管的） events in women with long-term exposure to air pollution．
The study involved women over the age of fifty who had no sign of cardiovascular disease at the start of the research．The study followed the women for as long as nine years to see how they would develop cardiovascular problems．
The researchers also examined levels of fine particles （粒子，微粒） in the air in 36 areas across the country．That information came from the Environmental Protection Agency．The extremely small particles came from industrial smoke and traffic, along with things like wood-burning fireplaces in houses．
In the study, every ten-microgram increase in pollution was linked to a twenty-four percent increase in the risk of a cardiovascular event．But it was related to a seventy-six percent increase in the risk of death from cardiovascular disease．
But just how do particles in the air damage the cardiovascular system? The particles may cause the lungs to swell and release chemicals from the pollutants into the blood．The chemicals then could damage the heart．
1．The passage mainly talks about______．
A．the effects of pollution on women
B．how to protect women from air pollution
C．how air pollution damages a person’s heart
D．the relationship between air pollution and heart diseases
2．The case of the woman wearing a face mask shows ______．
A．people are paying more and more attention to their health
B．the woman is afraid of getting heart disease
C．Lanzhou city is more heavily polluted than other cities
D．a(chǎn)ir pollution is becoming more and more serious
3．We can learn from the passage that _______．
A．a(chǎn)ir pollution is more serious than scientists thought
B．the control of air pollution is effective in some cities
C．people throughout a city have the same risk of getting heart diseases
D．a(chǎn)ir pollution affects women more than men
4．The study implies that ______．
A．a(chǎn)ir pollution has a bigger effect on older women than younger women
B．small particles in the air mainly come from industrial smoke
C．the rise in air pollution may lead to a higher death rate from cardiovascular disease
D．a(chǎn)ir pollution has been affecting people for as long as nine years in the city of Lanzhou

小題1:D
小題2:D
小題3:A
小題4:C
略
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：完形填空


第二節(jié) 完形填空(共20小題；每小題1．5分，滿分30分)
閱讀下面短文，從短文后所給各題的四個選項(A、B、C、D)中，選出可以填入空白處的最佳答案。
In my dual (雙重的)) profession   36  an educator and health care provider, I have worked with many children infected with HIV. They have taught me so many things, but I have especially learned that great   37   can be found in the smallest individuals. Let me tell you about Tyler.
Tyler was   38   infected with HIV; his mother was also infected. From the very beginning of his life, he was dependent on medications to 39  him to survive. When he was five, he had a tube inserted in a vein(靜脈) in his chest. At times, he also needed extra oxygen to support his 40.
Tyler wasn't_41   to give up one single moment of his childhood to this deadly disease. It was not  42   to find him playing and racing around his backyard, wearing his medicine-loaded backpack and   43  his tank of oxygen behind him in his little wagon ( 小推車 ). All of us who knew Tyler were impressed by his pure   44   in being alive and the energy it gave him. Tyler’s mom often  45  him by telling him that he moved so  46   she needed to dress him in red. That way, when she peered through the window to check on him playing in the yard, she could quickly47  him.
This deadly disease eventually  48   down Tyler. He grew quite ill and, unfortunately,  49 did his HIV-infected mother. When it became   50   that he wasn't going to survive, Tyler’s mom talked to him about   51 . She comforted him by telling Tyler that she was dying too, and that she would be with him soon in heaven.
A few days before his death, Tyler 52  to me to come to his hospital bed and   53 ,"I might die soon. I'm not 54  When I die, please dress me in  55  Mom promised she's coming to heaven, too. I'll be playing when she gets there, and I want to make sure she can find me.
36. A. in                     B.for             C. as             D.on
37. A. pleasure      B. pain          C. sorrow      D. courage
38. A. seriously     B. born          C. unlucky      D. disappointingly
39. A. cause          B. enable       C. make         D. lead
40. A. breathing    B. living        C. running      D. walking
41. A. happy         B. willing      C. daring        D. discouraged
42. A. common     B. unusual     C. surprised    D. ordinary
43. A. dragging      B. carrying    C. pushing      D. taking
44. A. character     B. joy            C. moment     D. Excitement
45. A. comforted   B. scolded      C. teased        D. praised
46. A. slowly               B. happily      C. quickly      D. fast
47. A. know          B. spot          C. stop           D. observe
48. A. tore            B. broke               C. wore          D. kicked
49. A. neither               B. so             C. such           D. nor
50. A. apparent      B. hopeless    C. sure           D. terrible
51. A. life             B. dream       C. future        D. death
52. A. waved         B. said           C. signed        D. explained
53. A. whispered   B. shouted     C. cried          D. spoke
54. A. excited        B. surprised   C. scared        D. sad
55. A. red             B. white               C. bright      D. beauty

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Not long ago , Richard Denniston found himself suffering the same pain that millions of other pet owners have faced . His little Scottish dog had a brain tumor（腫塊）and would soon die. Like others who faced the problem before him , Denniston just wanted to end his pet’s suffering . However , he took one step further.
Deniston , an expert who studies animals , collected a tiny skin sample from the dog and took it to his laboratory at Louisiana State University. There he  cultivated  it and froze it in liquid nitrogen.
From that idea , Denniston started a new technology .Denniston’s company will save pet’s DNA ＄500，plus a monthly storage fee of Us ＄10, until cloning becomes a reality .
Thanks mostly to the contribution of a California multimillionaire , that day may not be so far off.
“It could happen extremely soon if everything went on well.”says Mark Westhusin , a professor leading a dog cloning team . Most experts put successful dog cloning a year to five years down the road . The cost is bound to be expensive at first , but it would eventually drop to a few thousand dollars.
Since Dolly , the sheep which was first cloned in 1997 ,cattle ,goats ,mice and monkeys have been cloned in labs . Pets are likely to be next.
“I really believe that the technology is going to become available for many species in the near future ,”Denniston says .
1. After his pet died ,Richard Denniston_______.
A. did something more than the ordinary pet owners
B. did as other pet owners
C. did nothing but feel very sad
D.could not help feeling lonely without his dear pet
2. Richard Denniston_________in liquid nitrogen for an experiment.
A. was a doctor who put his dog
B. was an animal expert who put a piece of his dog’s skin
C.was an expert at collecting skin samples who then put them
D.took great interest in freezing things
3. The underlined word “cultivated ”in Para . 2 probably means_________.
A. bought     B.discovered    C.caught     D.trained
4. Cloning will cost people_______.
A. a lot of money in five years .
B. much in the beginning and then be reduced to a thousand dollars.
C. much and then will surely be reduced to thousands of dollars.
D.much at first and then might be reduced to a few thousand dollars.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Let's pretend we're sailing down the Rhine River on a pleasure boat. The Rhine is one of the main waterways of Germany, and the river traffic is heavy. It's interesting to watch the many boats going up and down the river. But the river traffic is not nearly so interesting as the beautiful scenery along the banks and hillsides. The boat is passing many old castles. We can see people working in the vineyards (葡萄園) on the hillsides. There are vineyards as far as the eye can see. Wine from the Rhine Valley is famous all over the world.
Suddenly our boat slows down and begins to turn a little. We are coming to a sharp bend in the river. On our right we can see a rocky cliff over 400 feet high. At first it looks quite ordinary, but there is nothing ordinary about it. There are many stories, poems, and songs about the cliff. We are looking at the Lorelei.
The someone on the boat begins to sing in German, the song of the Lorelei. It is a song about a beautiful siren (美女) who has lured many sailors to their deaths.
The siren is supposed to sit on the rock combing her long golden hair and singing. The sailors who hear her forget to steer, and the current of river hurls their boats on the rocks and dashes them to pieces.
Soon other people on the boat begin to sing. The beautiful song adds to special magic to the moment, and you begin to realize why so many people have made this trip down the Rhine to see the rock of the Lorelei.
1.The more interesting thing to those who are sailing down the Rhine River on a pleasure boat is      .
A. to watch many boats going up and down the river
B. to see the beautiful scenery along the banks and hillsides
C. to hear a song about beautiful siren
D. to see a beautiful siren combing her golden hair
2. Which of the following is famous all over the world?
A. The Rhine River.                   B. The River Traffic.
C. Wine from the Rhine Valley.          D. The Lorelei.
3. We can see a rocky cliff over 400 feet high      .
A. on our right when coming to a sharp bend       B. on the Rhine hillsides
C. from the Rhine Valley                 D. on the boat
4. The song of the Lorelei is about      .
A. The Rhine wine                   
B. a rocky cliff
C. the beautiful scenery along the Rhine River 
D. a beautiful and dangerous woman genie

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


For many young people, the dream of a lifetime is to travel the world, explore different cultures and landscapes, taste new foods and flavors, and listen to the distinctive sounds of international music and languages.
Unfortunately, few young people have the money or freedom to make this dream come true. But if you can't go out into the world, surely second best is to let the world come to you. And, this year's Shanghai World Expo is exactly where that's happening.
From May 1 to October 31, there will be 194 countries and 50 international organizations on display at the 5-square-km Expo site. Seventy million domestic and international visitors are expected to visit it by the end of October. So, if you can go, you'll be surrounded by people with a wide range of backgrounds, nations, and cultures.
The Expo's theme is "Better City, Better Life". The United Nations estimates that, this year, 55 of the world's people will live in urban settings. This poses a dilemma (困境) for the world's cities: How can they accommodate such a large number of people in a sustainable (可持續(xù)的) way? Can they remain places of natural beauty and cultural importance?
Well, that's the challenge the 2010 Expo participants are confronting in a variety of ways. Japan will show off an "eco-breathing" structure to power its building with natural energy like sunlight, rainwater and wind. Germany's pavilion is named "Balancity", which is described as a "balance between innovation (創(chuàng)新) and nature, society and its individuals, work and recreation" (娛樂)
The first themed Expo was held in 1933, and since that time World Expos have featured a participatory and interactive style. The Shanghai Expo is no exception. Young people will have the opportunity to take part in forums to discuss themes like new technology, green energy and conservation.
A trip to the Expo is guaranteed to be much less expensive than a trip around the world. Still, the costs can add up. However, young people can save money by purchasing group or student tickets, which may be available at reduced rates. Many of the participating pavilions offer free samples and treats for the visitors. In addition to handing out free chocolates, the Belgian pavilion will give away a free diamond each week to a visitor who can answer questions related to Belgium.
If you're planning to head to the Shanghai Expo between May and October, don't forget to bring a camera, a notebook, and an open mind (and comfortable shoes). For nearly six months, representatives of the world are coming together to share their best and latest ideas for the future. It's sure to be a memorable experience.
From: http://www.hxen.com/englisharticle./yingyuyuedu/2010-02-09/101092.html
1. Which statement is true according to the passage?
A. You can pay a visit to the Shanghai World Expo at the beginning of this November
B. You can save money by buying student tickets.
C. Whoever comes to the Belgian pavilion will be given a free diamond.
D. How to protest the animals is the theme of the Shanghai World EXPO
2. What dilemma do you think the cities are confronting (面對) now according to the fourth paragraph?
A. How to avoid traffic jams                     B. How to reduce air pollution
C. How to live peacefully with animals          D. How to live harmoniously with nature
3. What's the purpose of the writing the passage?
A. To introduce how to get to the Shanghai World Expo
B. To recommend what to see in the Shanghai World Expo
C. To tell us some information about the Shanghai world Expo.
D. To tell us the history about the World Expo.
4. Where do you think you will probably read this article?
A. In a newspaper      B. On a website         C. In a magazine      D. In a textbook

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


— Dear, I can find a better job if I go to the USA, maybe.
— Don't be silly. ________, you know.
A．A bad beginning makes a bad endingB．A golden key can open any door
C．A bird in the hand is worth two in the bushD．Actions speak louder than words

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解


Babies are born yogis（瑜伽練習(xí)者）．Once we were all able to pull our toes up by our ears and laugh about it．Then we aged, got injured, and began carrying stress in our shoulders and back．In short, we lost our balance．
Yoga（瑜伽） is an ancient practice that helps create a sense of union in body, mind, and spirit．It brings us balance．I was seriously out of balance when I started practicing yoga in 1999．I had plantar fascitis（足底筋膜炎）in both feet, and my doctor had warned me against all the things I loved to do: walking, hiking, and playing tennis．I was desperate for exercise．Yoga became my salvation and even enhanced my other fitness activities．I practice yoga at least twice a week, but I consider yoga to be part of my daily life because after a while you no longer just practice yoga—you love it．
Yoga becomes part of your physical life．Your body grows stronger, more toned, and more flexible as you move from one pose to the other．I spent a week in Mexico at a yoga retreat, and it was the first vacation on which I lost weight．“Rather than building muscle, yoga builds muscle tone,” says Shakta Kaur Khalsa, author of the K．I．S．S．Guide to Yoga．“Because yoga helps maintain a balanced metabolism （新陳代謝), it also helps to regulate weight．Additionally, yoga stretches muscles lengthwise, causing fat to be removed around the cells．” I do yoga poses throughout the day．After hours at my computer, I stretch my stiff shoulders and arms．When I need a boost of energy, I do energizing poses．When I am feeling exhausted at the end of the day, I do restorative poses．
Yoga becomes part of your mental life．Yoga teaches you to focus on breathing while you hold the poses．This attention to breath is calming; it dissolves stress and anxiety．I use yogic breathing on the tennis courts, in the dentist’s chair, and in traffic jams．You should always leave a yoga practice feeling energized, not tired．If you feel tired after yoga, it means you spent the time “fighting” yourself, trying to force yourself into poses．In yoga, you “surrender” to the pose by letting go of the tension．
Yoga becomes part of your spiritual life．Yoga is practiced by people from all religions; it is not restricted to any religious group．Yoga teaches “right” living in how we deal with ourselves and others．As I work on a difficult pose, I learn patience, forgiveness, and the value of gentleness．Yoga advocates proper eating, but you don’t have to be a vegetarian to practice yoga．
72．What would be the best title for this passage?
A．What’s Yoga?                B．How I Do Yoga Poses
C．The Benefits of Yoga          D．The Varieties of Yoga
73．According to the third paragraph, yoga can help people __________．
A．grow taller                     B．lose weight
C．become flexible in thinking           D．make more friends
74．People feel tired after yoga because __________．
A．they consume energy in practicing yoga
B．they respond well to yoga poses
C．they spend too much time on yoga       
D．they force themselves into yoga poses
75．If this passage continues, what will the writer most probably write about in the next paragraph?
A．Yoga as a means to keep fit．       
B．Different yoga poses．
C．Popularity of yoga all over the world．       
D．Encouraging people to do yoga．

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

When it comes to intelligence, human beings are the top dogs of the animal kingdom. But in recent years, scientists have been documenting surprising intelligence and emotional depth in animals ranging from honeybees to elephants. Here are some amazing examples.
Artistic Monkey Business
Jannet Schmid, director of the Little River Zoo in Norman, Oklahoma, learned a lot about the intelligence of capuchin monkeys. She and her busband adopted a young male, named Bailey. The capuchin particularly liked taking car rides, insisting that he insert the key and ride in the front passenger’s seat.
Now Bailey has become a devoted painter. He uses brushes to create colorful, abstract paintings, and prefers not to be disturbed.
Prairie Dog Sound
Through a variety of birdlike sounds, prairie dogs warn each other of approaching creatures. They demonstrated a surprisingly complex communication system. In his 25 years of study, Slobodchikoff, a professor of biology, has recorded them pronouncing ten nouns including hawk, deer and coyote, a number of adjectives to identify color, size and shape, and even some verbs to indicate speed.
In an ongoing study, Slobodchikoff learns that their brain contains a very extensive vocabulary. He once used his best prairie dog sound to say coyote, and they just looked at him in anger as if he had said a bad word.
Ivy League Parrot
One African grey parrot Alex is said to have the cognitive abilities of a five-year-old child. Alex can identify 50 different objects, seven colors, five shapes, quantities up to six, and the concepts of bigger, smaller, same and different.
Also Alex is considered to make reasoned decisions. During an experiment, researchers gave Alex different-colored blocks in sets of two, three and six. When asked which color group had five blocks, Alex replied, “None.” And he answered the same in repeated tests. Obviously, he interpreted the concept of “none” as an absence of quantity all on his own. That’s a lot like a high school student answering questions on a quiz show.
56.Which of the following is true?
A. Bailey is as clever as a child of five.
B. The prairie dog loves taking car rides.
C. The capuchin monkey is fond of painting.
D. Alex develops a communication system.
57.The underlined word “coyote” in Paragraph 4 refers to ________.
A. a verb                     B. an animal              C. a warning                       D. an adjective
58.The African grey parrot Alex can ________.
A. answer questions on a quiz show
B. understand the figure “7”
C. identify five colors and seven shapes
D. apply the concept of “none” correctly
59.What is the passage mainly about?
A. Animal communication                           B. Animal research
C. Animal intelligence                                  D. Animal information

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

The beet (甜菜) is a tasty root vegetable that does not require much work to grow. People think of beets as being always dark red，but they can also be pink，yellow or white. Beets are high in nutrients，and both the root and the tops can be eaten. The leaves make good salads when the plants are young，and the greens can be cooked when the plants are older. Beets grow best in full sun and in loose soil that is not too wet.
Remove stones from the soil while preparing the ground，and test it before adding fertilizer Beet seeds can be planted as soon as the soil can be worked at the start of the growing season. Planting them every two or three weeks will provide a continuous harvest into the fall. A beet seed is a fruit containing several seeds. Overcrowding the plants will mean that the roots cannot spread out and grow，so thin the beets by removing the smaller ones and using them as greens.
A specialist named Cindy Haynes says little or no fertilizer is needed in rich soils. Once the seeds are planted，however，she suggests covering the soil to protect it from the rain and during dry periods. She also suggests putting a fence around the plants to keep away rabbits and deer. She says the only work beets need once they have been thinned is weeding and， when the weather is dry，a weekly watering. For best results，beets should be picked when the roots are two and one-half centimeters around. Larger beets can be tough，and have to be cooked for a long time. Beets can be eaten in many ways.
60.What is the second paragraph mainly about?
A. How to test the soil.           B. How to plant beets
C. When to harvest beets.          D. When to plant beets.
61.Smaller beets are often removed in order to       .
A. give other beets space to grow    B. add more fertilizer to the soil
C. plant new seeds                D. use the green，young leaves in salads
62.What may the next part of the last paragraph be about?
A. When to pick beets.             B. How to eat beets.
C. The uses of beets.              D. The taste of larger beets.
63.The passage is most probably from a(n)     .
A. gardening book   B. education magazine   C. science report   D. entertainment magazine

查看答案和解析>>

同步練習(xí)冊答案