精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

精英家教網 > 高中英語 > 題目詳情

 

Many people believe the glare from snow causes snow-blindness. Yet, dark glasses or not , they find themselves suffering from headaches and watering eyes, and even snow-blindness, when exposed to several hours of “snow light”. The United States Army has now determined that glare from snow does not cause snow-blindness in troops in a snow-covered country. Rather, a man's eyes frequently find nothing to focus on in a broad expanse of barren (少植被的) snow-covered terrain (地形). So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and the eyeballs become sore and the eye muscles ache. Nature eases this irritation by producing more fluid which covers the eyeball. The fluid covers the eyeball in increasing quantity until vision blurs (模糊), then is obscured (遮蔽), and the result is total, even though temporary, snow-blindness.

Experiments led the Army to a simple method of overcoming this problem. Scouts ahead of a main body of troops are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow-covered landscape. Even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop scouring the snow-blanketed landscape. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snow-blind or lost. In this way the problem of crossing a solid white terrain is overcome.

1. To prevent headaches, watering eyes and blindness caused by the glare from snow, dark

glasses are _________.

A. indispensable and essential   B. useful                       C. ineffective      D. available

2. When the eyes are sore tears are produced to _________.

A. balance the pain                                                       B. treat snow-blindness 

C. clear the vision                                                            D. loosen the muscles 

3. Snow-blindness may be avoided by _________.

A. concentrating on the solid white terrain

B. searching for something to look at in snow-covered terrain

C. providing the eyes with something to focus on

D. covering the eyeballs with more fluid 

4. The scouts shake snow from evergreen bushes in order to _________.

A. prevent the men behind losing their way 

B. beautify the landscape of the terrain

C. warm themselves in the severe cold

D. give the men behind something to see

5. A suitable title for this passage would be _________.

A. nature's cure for snow-blindness       B. snow-blindness and how to overcome it

C. soldiers marching in the snow          D. snow vision and its effect on eyesight

 

【答案】

 

 C

 A

 C

 D

 B

【解析】

 

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:閱讀理解

I was a single parent with my son. Two jobs allowed me an apartment, food, and child care payment. Little money was left over for clothes,   1   I kept us nicely dressed. Loving    2    , I bought for myself beautiful reds and oranges, and greens and pinks. And quite often I wore them in mixtures, which, against the usually correct way, brought   3    to the eyes of people who could not avoid    4     me.

I went to my son’s     5     frequently. And he would always come and greet me and my colorful clothes.    6    , when my son was six, he told me    7    that he had to talk to me.

“Mother, do you have any sweaters that    8    ?”

I said, “No, I don’t.”

 “Oh, I wish you did.     9    you could wear them to my school.” Then he continued, “Mother, could you please    10    come to school when they call you?” Then I realized that my dress was a(n)    11     to him.

I learned to be a little more careful to    12      causing him displeasure. As he grew older and more confident, I gradually    13     to my particular way of dressing. I was happier when I chose and created my own     14    .

I have lived in this body all my life and know it much    15    than any fashion designer. I think I know what looks good   16     me.

    17      is important to mention because many people are imprisoned by powerful principles on the    18    way of dressing. Those decisions made by    19     are not truly meant to make your life better. Seek the fashion which truly suits you. You will always be in fashion if you are    20     to yourself.

1. A. but                B. and             C. or                   D. because

2. A. shapes           B. styles          C. colors            D. tastes

3. A. envy            B. appreciation   C. disappointment      D. surprise 

4. A. recognizing       B. admiring      C. accepting         D. noticing

5. A. office             B. home          C. school             D. lab

6. A. However         B. Meanwhile     C. Otherwise         D. Therefore

7. A. proudly            B. jokingly         C. seriously            D. curiously

8. A. cost             B. work           C. fit              D. match

9. A. Even if             B. As if             C. So that             D. In case

10. A. only            B. still             C. once            D. ever

11. A. wonder          B. surprise        C. embarrassment    D. honor

12. A. practice           B. remember         C. mind              D. avoid

13. A. turned           B. returned        C. escaped          D. took

13. A. fashion            B. sweater           C. color             D. tradition

15. A. better            B. worse           C. more           D. less

16. A. in               B. on               C. with           D. of 

17. A. Dress           B. Money           C. Principles      D. Designers

18. A. experienced      B. proper           C. formal          D. simple

19. A. me             B. yourself          C. others          D. ones

20. A. true             B. serious          C. practical        D. responsible

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

The greatest source of inspiration for me has always been my father. Though he’s been gone for 17 years, his   21   still resonate(產生共鳴). He taught me how to run my own race in life. But the most inspiring thing he taught me was to   22  .

One incident is   23   in my mind. It happened when I was a teenager. My sister and I weren’t very fond of a so-called friend of   24  . Dad was a very generous man, and as he’d done with so many people, he’d given this fellow great help. But when he asked for a favor   25  , the guy didn’t deliver.

Dad’s outlook(人生觀)on most things was “Live and let live.” In this case, however, his calmness   26   Terre and me, and we let him know it.

“How can you be nice to that man?” we said to him. “You’ve been so kind to him, and he’s not being kind back. Why would you want to give him the time of day again?”

My father shrugged(聳肩)and said to us, “I do not bend my back with   27  . ”

I didn’t get it at first, but over the years I came to understand the   28  . Holding a grudge(怨恨)doesn’t   29   the person you’re angry with, but it changes you. It makes you heavier and gives you more weight to drag around.

After my father died in 1991, a (n)   30   came from a fellow I’d had a quarrel with years before to   31   his sympathy. He wrote: “I thought I’d tell you how sorry I am   32   the loss of your father. I know he   33   the world to you. I just wanted to let you know that you are in my thoughts. ”

Much moved, I wrote back. I thanked him for his   34  . And then, because he’d   35   

our disagreement, I recalled Dad’s inspiring words. “I am my father’s daughter,” I wrote. “And like him, I do not bend my back with yesterday.”

A. lectures             B. suggestions             C. lessons           D. pictures

A. forgive              B. persuade                C. forget              D. excuse

A. vital               B. obvious                  C. visual              D. vivid

A. sister’s              B. mine                      C. father's             D. mother’s

A. in return           B. in turn                   C. by return                D. by turn

A. relaxed                  B. moved                        C. interrupted        D. bothered

A. anger            B. disappointment       C. worry             D. yesterday

A. reason               B. word                     C. philosophy         D. sentence

A. change              B. hurt                    C. upset              D. disturb

A. news                  B. letter                C. message             D. information

A. explain                B. express               C. produce                 D. present

A. in                    B. with                     C. about             D. at

A. showed               B. represented        C. equaled          D. meant

A. kindness            B. sympathy            C. understanding     D. consideration

A. referred               B. mentioned           C. reminded           D. retold

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

In the United States, when one becomes rich, he wants people to know it. And even if he does not become very rich, he wants people to think that he is. That is what “keeping up with the Joneses” is about.  It is the story of someone who tried to look as rich as his neighbors.

The expression was first used in 1913 by a young American called Arthur Momand. He told this story about himself. He began earning $ 125 a week at the age of 23. That was a lot of money in those days. He got married and moved with his wife to a very wealthy neighborhood. When he saw that rich people rode horses, Momand went horseback riding every day. When he saw that rich people had servants. Momand and his wife also hired a servant and gave big parties for their new neighbors. 

It was like a race, but one could never finish this race because one was always trying to keep up. The race ended for Momand and his wife when they could no longer pay for their new way of life. They had to move back to an apartment in New York City. Momand looked around him and noticed that many people do things just to keep up with rich lifestyle of their neighbors. He saw the funny side of it and started to write a series of short stories. He called it “Keeping up with the Joneses” because “Jones” is a very common name in the United States. “Keeping up with the Joneses” came to mean keeping up with rich lifestyle of the people around you. Momand’s series appeared in different newspapers across the country for over 28 years.

People never seem to get tired of keeping up with the Joneses. And there are “Joneses” in every city of the world. But one must get tired of trying to keep up with the Joneses because no matter what one does, Mr. Jones always seems to be ahead.

Some people want to keep up with the Joneses because they ______.

A.want to be as rich as their neighbors

B.want others to know or to think that they are rich

C.don't want others to know they are rich

D.want to be happy

It can be inferred from the story that rich people like to ________. 

A.live outside New York City    B.live in New York City

  C.live in apartments            D.live with many neighbors

What's the author's attitude to keeping up with the Joneses?

A.Negative.                   B.Positive.

C.Supportive.                  D.Objective.

查看答案和解析>>

科目:高中英語 來源: 題型:

Many people have been ill from a strange disease these days,______we’ve never heard of before.

    A. one    B. that   C. it    D. this

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

Thirty- two people watched Kitty Genovese being killed right below their windows. She was their neighbor. Yet none of the 32 helped her. Not one even called the police. Was this in gunman cruelty? Was it lack of feeling about one’s fellowman?

  “Not so,”say scientists John Barley and Bib Fatane. These men went beyond the headlines to research into the reasons why people didn’t act. They found that a person has to go through two steps before he can help. First he has to notice that is an emergency(緊急情況). Suppose you see a middle-aged man fall to the side - walk. Is he having a heart attack? Is he in a coma(昏迷) from a headache? Or is he about to sleep off a drunk? Is the smoke coming into the room from a leak(漏洞)in the air conditioning? Is it “steam pipes”? Or is it really smoke from a fire? It’s not always easy to tell if you are faced with a real emergency. Second, and more important, the person faced with an emergency must feel personally responsible(負責任的). He must feel that he must help, or the person won’t get the help he needs.

  The researchers found that a lot depends on how many people are around. They had college students in to be “tested.”Some came alone. Some came with one or two others. And some came in large groups. The researchers started them off on the “tests.”Then they went into the next room. A curtain divided the “testing room”and the room into which they went. Soon the students heard a scream, the noise of bookshelves falling and a cry for help. All of this had been prerecorded on a tape recorder.

  Eight out of ten of the students taking the test alone acted to help. Of the students in pairs, only two out of ten helped. Of the students in groups, none helped.

  In other words, in a group, Americans often fail to act. They feel that others will act. They, themselves, needn’t. They do not feel any direct responsibility.

  Are people bothered by situations where people are in trouble? Yes. Scientists found that the people were shocked, they sweated, and they had trembling hands. They felt the other person’s trouble. But they did not act. They were in a group. Their actions were shaped by the actions of those they were with.

60. The purpose of this passage is ________.

 A. to explain why people fail to act in emergencies

 B. to explain when people will act in emergencies

 C. to explain what people will do in emergencies

D. to explain how people feel in emergencies

61. Which of the following is NOT true?

  A. When a person tries to help others, he must be clear that there is a real emergency.

  B. When a person tries to help others, he should know whether they are worth his help.

  C. A person must take the full responsibility for the safety of those in emergencies if he wants to help.

  D. A person with a heart attack needs the most.

62. The main reason why people fail to act when they stay together is that ________.

  A. they are afraid of emergencies

  B. they are not willing to get themselves involved

  C. others will act if they themselves hesitate

D. they do not have any direct responsibility for those who need help

63. The author suggests that ________.

  A. we shouldn’t blame a person if he fails to act in emergencies

  B. a person must feel guilty if he fails to help

  C. people should be responsible for themselves in emergencies

D. when you are in trouble, people will help you anyway

查看答案和解析>>

同步練習冊答案
精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区
成人小视频在线| 色综合中文字幕| 在线精品视频免费观看| 久久只精品国产| 丝袜亚洲精品中文字幕一区| 99久久国产综合精品麻豆| 欧美大片一区二区三区| 亚洲午夜免费视频| av成人免费在线| 久久久久久日产精品| 日韩精品一二三四| 欧美在线三级电影| 亚洲色图在线看| 国产成人av福利| 精品国产一区二区在线观看| 日日夜夜精品免费视频| 日本韩国一区二区| 国产精品久久久久影视| 国产精品一二三四| 日韩美女主播在线视频一区二区三区 | 欧美日韩视频在线第一区 | 成人精品gif动图一区| 2023国产精品视频| 麻豆成人免费电影| 3atv一区二区三区| 午夜激情一区二区| 在线免费观看日韩欧美| 亚洲欧美电影一区二区| av高清不卡在线| 国产精品久久久久一区二区三区共| 国产精品一区二区黑丝| 久久影音资源网| 国内精品不卡在线| 精品国产乱码久久久久久老虎| 裸体在线国模精品偷拍| 日韩视频一区二区在线观看| 人人精品人人爱| 欧美一区二区三区影视| 日本在线不卡视频一二三区| 欧美精品自拍偷拍| 日本亚洲视频在线| 欧美一级久久久久久久大片| 蜜臀av性久久久久蜜臀aⅴ四虎| 日韩一区二区三区观看| 麻豆一区二区在线| 精品国产免费一区二区三区香蕉| 久草在线在线精品观看| 久久亚区不卡日本| 国产精品影视网| 欧美极品aⅴ影院| 99视频热这里只有精品免费| 中文字幕在线不卡| 色激情天天射综合网| 亚洲综合男人的天堂| 欧美狂野另类xxxxoooo| 免费成人美女在线观看.| 精品久久久三级丝袜| 国产精品白丝av| 国产精品久久久久久久久搜平片| 92精品国产成人观看免费| 亚洲男人的天堂av| 欧美日韩专区在线| 蜜臀久久99精品久久久画质超高清 | 国产精品福利一区| 91国产精品成人| 日韩精品91亚洲二区在线观看 | 欧美一区二区在线视频| 极品美女销魂一区二区三区免费| 久久精品视频一区| av电影一区二区| 亚洲午夜久久久久久久久电影院| 91麻豆精品国产| 国产一区二区三区蝌蚪| 亚洲同性同志一二三专区| 欧美优质美女网站| 久久精品国产999大香线蕉| 国产亚洲精品超碰| 91麻豆免费在线观看| 性久久久久久久久久久久| 精品国产一区二区精华| 成人av网址在线| 亚洲v中文字幕| 久久婷婷国产综合精品青草| 99久久99久久免费精品蜜臀| 亚洲高清视频在线| 精品国产一区a| 99国产精品视频免费观看| 午夜亚洲国产au精品一区二区| 欧美成人一区二区三区| av不卡在线观看| 日韩高清中文字幕一区| 日本一区二区三区dvd视频在线| 91国产视频在线观看| 久久国产麻豆精品| 亚洲人123区| 日韩免费一区二区三区在线播放| 成人免费观看男女羞羞视频| 亚洲妇女屁股眼交7| 久久蜜桃一区二区| 欧美在线制服丝袜| 国产精品99久久久久久有的能看| 一区二区三区在线播| 精品区一区二区| 色一情一伦一子一伦一区| 久久精品久久久精品美女| 日韩毛片高清在线播放| 日韩一区二区三区免费观看| av网站免费线看精品| 美女mm1313爽爽久久久蜜臀| 亚洲色图在线播放| 精品福利二区三区| 欧美视频精品在线| 夫妻av一区二区| 日本成人超碰在线观看| 亚洲欧美国产高清| 久久免费精品国产久精品久久久久| 欧美午夜精品久久久久久超碰| 国产福利精品导航| 青青草原综合久久大伊人精品优势| 中文字幕在线一区二区三区| 精品美女在线播放| 欧美优质美女网站| 成人精品gif动图一区| 久久99精品国产91久久来源| 一级中文字幕一区二区| 国产日韩视频一区二区三区| 91精品国产综合久久久蜜臀图片 | 国产精品乱码一区二三区小蝌蚪| 欧美一三区三区四区免费在线看| 91丨九色丨蝌蚪丨老版| 国产乱码精品一区二区三区忘忧草| 午夜欧美电影在线观看| 亚洲人成在线观看一区二区| 久久久久久久综合狠狠综合| 欧美一区日本一区韩国一区| 在线中文字幕不卡| av欧美精品.com| 国产成人综合在线播放| 久久国产免费看| 五月天激情综合网| 亚洲在线视频网站| 亚洲色图制服诱惑 | 精品久久久久av影院| 欧美精选午夜久久久乱码6080| 91论坛在线播放| 成人手机在线视频| 国产成人av资源| 国产做a爰片久久毛片| 美国十次综合导航| 日本色综合中文字幕| 亚洲国产精品人人做人人爽| 亚洲精品视频在线看| 国产精品每日更新在线播放网址| 26uuu久久综合| 精品毛片乱码1区2区3区| 91精品国产色综合久久| 在线综合亚洲欧美在线视频| 欧美日韩久久久一区| 在线观看日韩电影| 91成人网在线| 欧洲一区在线观看| 在线看不卡av| 欧美性受xxxx黑人xyx性爽| 色狠狠桃花综合| 色综合久久99| 在线观看区一区二| 欧美在线视频全部完| 在线观看日韩电影| 欧美视频一区在线观看| 欧美色成人综合| 欧美日韩国产综合一区二区| 欧美日韩电影一区| 91精品久久久久久蜜臀| 欧美一区二区三区婷婷月色| 91精品国产色综合久久ai换脸| 91精品国产综合久久福利 | 91精选在线观看| 欧美一区二区三区不卡| 日韩欧美综合在线| 26uuu精品一区二区| 久久久www免费人成精品| 国产亚洲精品资源在线26u| 欧美国产日韩亚洲一区| 国产精品久久久久久久久动漫| 国产精品国产成人国产三级| 亚洲免费资源在线播放| 亚洲国产日韩a在线播放| 午夜av一区二区三区| 蜜桃91丨九色丨蝌蚪91桃色| 国内精品不卡在线| 成人精品小蝌蚪| 色综合视频一区二区三区高清| 欧美在线短视频| 91精品国产综合久久国产大片| 精品免费日韩av| 欧美激情在线免费观看| 亚洲免费av在线| 视频一区国产视频| 激情六月婷婷综合| av在线播放不卡|