日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

精英家教網 > 高中英語 > 題目詳情

Directions:Read the following three passages.Each passage is followed by several questions or unfinished statements.For each of them there are four choices marked A, B, C and D.Choose the one that fits best according to the information given in the passage.

  A rccent study of anclent and modern clcphants has come up with the uncxpeclcd conclusion that the african elcphant is dividcd into two disinct(不同的)species

  The discovery was made by researchers at yod and haycard yniwersities when they were examining the genetid relinship between the ancient woolly manmmth and mastodon to modern ckephants ins asoan alepnant a feoan forest elephant and afcican sannna clephant

  Once they obfantcd DNA sequences{序列}from two fossils{化石},mammothd and mastodons the team comparcd them with dna form ,modcrn eleohants they found to their amazement that modern forest and sabanna elephants are as distinct from cach other as asian elephants and manmoths he scientists used detailed genetic anatysis to proce that the african savanna clelhants hace been distinct species for several million years the divcrgonce of the ttwo species took place around the time of the of the dicergcncc of asian clephants and woolly mammoths this result amazed all the scienitsts

  There has long been debate in the scientific community that the two might be separespecies but this is the most convincing scientinfic evidence so far that they are anded difforent species

  Preci many naluralists believed that afrjcan savanna elephants and airican forest were two plpulations of the same apecies despite the clcphants signigice\ant sizw differences the sac\vanna elelphant has an average shouldcr height of 3.5metres while the forest slsphant has an average shouldcr height of 2.5metres the sacanna laphant welghs belween six anp secedn tons roughly double the weight of the forest elephant but the fact that they look so different does not neccssarily mean they are different species howecer the prooflay in the analysis of th DNA

  Alfred roca allisant professor in the dcoamment of animal scienccs at the unicerstiu of said “wu now nave to reat the forest and savanna elephants at two diffcrcnt units for consrrbation pucpooses since 1950 all african ele[hants are two cery distinctice animals the forest ele[hant shoule become a bigger prioity(優先)for conscrvation puruose”

(1)

one of the fossols studied by the reaearchers if that of ________

[  ]

A.

the asian elephant

B.

the forest elephant

C.

the savnna clcphant

D.

the maslodon elephant

(2)

the underlined word “divergence” in p[aragraph 4means “________”

[  ]

A.

evolution

B.

e\cxhibition

C.

separation

D.

cxamination

(3)

68.the resarchcrs conclusion was based on a study of the a frican elephant's ________

[  ]

A.

DNA

B.

height

C.

weight

D.

populalion

(4)

What are Alfred Roca's words mainly about?

[  ]

A.

The conservation of African elephants.

B.

The urose of studing African elephants.

C.

The way to divide African elephants into two units

D.

The reason for the distinction of African elephants.

(5)

Which of the following can be the best title for the passage?

[  ]

A.

Naturalists' Beliefs about Elephants

B.

Amazing Experiments baout Elephants

C.

An Unexpected Finding about Elephants

D.

A Long Scientific Debate baout Elephants

答案:1.D;2.C;3.A;4.A;5.C;
練習冊系列答案
相關習題

科目:高中英語 來源:2013-2014學年湖南省長沙市高三10月第二次月考英語試卷(解析版) 題型:閱讀理解

Directions: Read the following passage. Fill in the numbered blankets by using the information from the passage. Write NO MORE THAN THREE WORDS for each answer.

  

Like our body, our memory needs regular exercise to be in good condition. Like the sportsman who must train to allow the body to respond to difficult times, the memory needs its own special training in order to stay in “shape” and improve.

There are many factors that can cause poor memory like insomnia (失眠), depression and alcohol. However, there are simple ways which you can follow to keep your memory in shape and actually help you to improve your memory’s condition and performance.

Never stop learning. Look for topics that interest you and really get involved in learning new information about them. Reading and attending lectures or programs are sources of continuous education of your brain with beneficial results to your memory.

    Develop your social and family relationships. The more social you are, the better it is for your brain. Studies have shown that the brain and heart have a lot to gain from good family and social relationships.

    Exercise your mind with games. The more you use your brain, the more you help your memory stay in shape. There are many games that can make you an intelligent person as well as entertain you such as chess, puzzles and board games.

    Exercise physically can improve your memory. This type of exercise improves the circulatory (血液循環的) system. Even the simple but regular daily exercise such as fast walking can improve the heart and oxygenation(供氧) of the brain. The benefits of exercise affect positively many body systems, as well as our memory and other cognitive(認知的) capabilities.

    Eat more fruit and vegetables. What we eat every day affects the performance and long-term condition of our memory. Fruit and vegetables are an excellent source of antioxidants(抗氧化劑) and vitamins that can help and benefit the nervous system.

   So our memory is like a sportsman. The more we practice our brains and memory, the better their performance will be.

                      Title: How to improve memory

 

   Topic

1.      like insomnia, depression and alcohol can lead to poor memory. We should exercise 2.      to keep memory in good condition.

 

 

 

 

 

Ways to improve memory

Never stop learning

3.      like reading and attending lectures or programs does good to your memory.

Develop social and family relationships

Good family and social relationships are beneficial to your brain and contribute to 4.    as well.

Exercise mind with games

Play chess, puzzles or board games, which is of great benefit to your intelligence and also offers you5.   .

Take6.    exercise

Physical exercise improves the 7.    of the brain, which leads to better memory.

Eat more fruit and vegetables.

Fruit and vegetables are 8.     in antioxidants and vitamins that can help and benefit the nervous system.

9.    

If we practice brains and memory more, they will 10.    .

 

查看答案和解析>>

科目:高中英語 來源:2012年新課標版高中英語選修七 Unit1練習卷(解析版) 題型:閱讀理解

The concept of health holds different meanings for different people and groups. These meanings have also changed over time. This change is no more evident than in Western society today, when notions of health and health promotion are being challenged and expanded in new ways.

For much of recent Western history, health has been viewed in the physical sense only. That is, good health has been connected to the smooth mechanical operation of the body, while ill health has been attributed to a breakdown in this machine. Health in this sense has been defined as the absence of disease or illness and is seen in medical terms.

In the late 1940s the World Health Organization challenged this physically and medically oriented (導向的) view of health. They stated that health is a complete state of physical, mental and social well-being and is not merely the absence of disease (WHO, 1946). Health and the person were seen more holistically (mind / body / spirit) and not just in physical terms.

The 1970s was a time of focusing on the prevention of disease and illness by emphasizing the importance of the lifestyle and behaviour of the individual. Specific behaviours which were seen to increase risk of disease, such as smoking, lack of fitness and unhealthy eating habits, were targeted. Creating health meant providing not only medical health care, but also health promotion programs and policies which would help people maintain healthy behaviours and lifestyles. While this individualistic healthy lifestyle approach to health worked for some (the wealthy members of society), it was of little benefit to people experiencing poverty, unemployment, underemployment or who had little control over the conditions of their daily life.

During the 1980s and 1990s there has been a growing swing away from seeing lifestyle risks as the root cause of poor health. While lifestyle factors still remain important, health is being viewed also in terms of the social, economic and environmental contexts in which people live. This broad approach to health is called the socio-ecological view of health.

At the Ottawa Conference in 1986, a charter was developed which outlined new directions for health promotion based on the socio-ecological view of health. This charter, known as the Ottawa Charter for Health Promotion, remains as the backbone of health action today. In exploring the scope of health promotion it states that:

Good health is a major resource for social, economic and personal development and an important dimension (尺度) of the quality of life. Political, economic, social, cultural, environmental, behavioural and biological factors can all favour health or be harmful to it. (WHO, 1986)

1.From the passage, we can infer that _________.

A.good health means not having any illness

B.health has different meanings for different people in different periods

C.health has always been viewed in terms of the social, economic and environmental contexts in which people live

D.health has always been considered a major resource for social, economic and personal development and an important dimension of quality of life

2.In the late 1940s, if you ___________, that meant you were healthy. 

A.were strong enough

B.were strong, optimistic and happy

C.had enough money

D.had a good lifestyle

3.        of society benefited most from the healthy lifestyle approach to health. 

A.Rich people

B.Poor people

C.Old people

D.Young people

4.The socio-ecological view of health includes the following broad areas EXCEPT ________.

A.the social contexts

B.the environmental contexts

C.the economic contexts

D.the area of personal development

5.This passage mainly tells us that                 .  

A.wealth is health

B.health means different things in different periods

C.it’s getting harder to be healthy

D.people should change their understanding of health over time

 

查看答案和解析>>

科目:高中英語 來源:2012-2013學年黑龍江省大慶市高三第三次月考(期中)英語試卷(解析版) 題型:單項填空

---How did you do in the test yesterday?

-----Not so well. I ______ much better but I misread the directions for writing。

A.will have done

B.could have done

C.must have done

D.may have done

 

查看答案和解析>>

科目:高中英語 來源:湖南澧縣一中2010屆高三英語綜合考練(一) 題型:完型填空

Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with word or phrases that best fits the context.

When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she struggled to find a place to sleep on the street. But she overcame these terrible setbacks to win a highly competitive scholarship and gained 36___ to Harvard University. And her 37___story has inspired a movie, Homeless to Harvard: The Tony Morrison Story 38___ in late April.

Tony Morrison, a 22-year-old American girl, has been writing a real-life story of willpower and determination. Tony grew up in the 39___of two drug-addicted parents. There was never enough food or warm clothes in the house. Tony was the only member of the family who had a job. Her mother had AIDS and died when Tony was just 15 years old. The effect of that loss 40___ a turning point in her life. Connecting the environment in which she had grown up with how her mother had died, she decided to do something about it. Tony went back to school. She 41___ herself into her studies, never telling her teachers that she was homeless. At night, she slept on the streets.

“What drove me to survive had 42___to do with understanding, by understanding that there was a whole other way of being. I had only experienced a small part of the society,” she wrote in her book Breaking Night. She admitted that she used envy to drive herself on. She used the benefits that came easily to others, such as a safe living environment, 43___ herself that “next to nothing could hold me 44___”. She finished high school in just two years and won a full scholarship to study at Harvard University.

But Tony decided to leave her top university for a couple of months earlier this year in order to take care of her 45___, who has also developed AIDS. “I love my parents so much. They are drug addicts. But I never forget that they love me 46___.” Tony wants moviegoers to go away with the idea that changing your 47___ is “as simple as making a decision”.

36. A. permission           B. entry                C. honor              D. confidence

37. A. puzzled               B. puzzling            C. amazing            D. amazed

38. A. published             B. appeared           C. sold               D. shown

39. A. charge                      B. face                 C. middle            D. shadow

40. A. lay in                 B. led to                      C. referred to          D. stuck to

41. A. threw              B. put               C. devoted           D. concentrated 

42. A. nothing               B. everything                  C. something         D. anything

43. A. to encourage                 B. to control         C. to persuade         D. to believe

44. A. up                      B. down                      C. off                    D. back

45. A. mother                B. sister               C. father                 D. brother

46. A. once in a while                                   B. time and time again  

C. at the same time                                D. all the time

47. A. life                     B. university            C. way              D. family

 

查看答案和解析>>

科目:高中英語 來源:2011年湖南省高一上學期第一次階段性測試(英語) 題型:填空題

Directions:  Read the following passage. Complete the diagram by using the information from the passage.

Write NO MORE THAN THREE WORDS for each answer.

As we all know, all the governments in the world collect taxes(稅), but what are they and what are they used for? Some people may not know about them.

There are two kinds of taxes. One of the most important taxes is income-taxes which a person pays according to the amount of his income. Whatever he is, he must pay tax if income is more than a certain amount. This is called a “direct” tax, because it is paid in money directly to the government.

Another tax is paid on goods. When they are brought into a country, such a tax is paid as part of the price of these goods if they are later sold in shops. We call it “indirect” tax, because it is paid indirectly through the shopkeepers.

People usually complain about having to pay taxes, but they forget that the money is spent on what they need. On one hand, we need policemen and soldiers to protect us from danger. Meanwhile, we also need schools and teachers for our children. On the other hand, we need officials and workers to serve us. Above all, we need money to develop our nation.

Taxes, therefore, can’t be avoided. We have no real reason to complain when we are asked to supply money to be spent for the good of ourselves and for our fellow-citizens.

Title:   1.  are necessary in our life

Sources

People→Taxes

_2.__of taxes

Tax-payers

  3. 

People whose income is over a certain amount

Indirect tax

___4.__

  5. 

Taxes→  6.  

On safety—  7.  

On education—  8. 

  9. —Officials and workers

On development—  10.

 

 

查看答案和解析>>

同步練習冊答案
日韩欧美一区二区三区四区五区 | 影音先锋人妻啪啪av资源网站| 亚洲最大的成人网| 97婷婷涩涩精品一区| 久久久999成人| 中文字幕日韩欧美在线| 亚洲国产成人爱av在线播放| 欧美一区日韩一区| 亚洲天堂成人在线观看| 99视频在线精品| 成人深夜在线观看| 成人一区二区三区视频在线观看 | www.99视频| 在线观看色网站| 成人高潮免费视频| 亚洲天堂一级片| 国产大片免费看| 日韩黄色免费观看| 久久精品99久久久久久| 欧美日韩成人免费观看| 久久一区二区三| 97免费在线观看视频| 亚洲 小说 欧美 激情 另类| 漂亮人妻被黑人久久精品| 亚洲熟女一区二区| 亚洲精品久久久久久宅男| 亚洲娇小娇小娇小| 国产精品熟女一区二区不卡| 69久久精品无码一区二区| 免费人成视频在线播放| 一级黄色免费视频| 少妇按摩一区二区三区| 成人黄色a级片| 黄色一级片中国| 不卡的免费av| 中文字幕在线观看视频免费| 中文字幕乱码人妻无码久久| 国产强伦人妻毛片| 欧美一级做a爰片免费视频| 一级做a爱片性色毛片| 国产丰满美女做爰| 在线视频中文字幕| yjizz视频网站在线播放| 黄a在线观看| 男人天堂视频在线观看| 91精品国产一区二区在线观看| 高清在线视频不卡| 日韩av一级| 国产三级精品三级在线观看国产| 91一区二区三区| 欧美一二三四在线| 亚洲第一页自拍| www高清在线视频日韩欧美| 久久久久久久国产精品| 国产精品嫩草视频| 极品校花啪啪激情久久| 一区二区三区三区在线| 成人黄色片视频| 日韩小视频在线播放| 日韩 欧美 视频| 日韩在线不卡一区| 欧美做受喷浆在线观看| 免费在线观看亚洲| 国产精品系列视频| 大乳在线免费观看| 95在线视频| 免费日韩电影| 美女亚洲一区| 国产人成精品一区二区三| 韩国三级中文字幕hd久久精品| 久久9热精品视频| 国产欧美日韩不卡| 一本色道久久加勒比精品| av日韩国产| 69av成人| 群体交乱之放荡娇妻一区二区| 日韩成人在线观看视频| 天天做综合网| 国产又粗又猛又爽又黄91精品| 国产精品一二三在| 亚洲天堂精品在线观看| 在线综合+亚洲+欧美中文字幕| 4438亚洲最大| 久久精品亚洲一区| 高清一区二区三区日本久| yellow视频在线观看一区二区| 狠狠色噜噜狠狠狠狠色吗综合| 精品国产综合区久久久久久| 日本福利视频在线观看| 女人扒开双腿让男人捅| 免费一级片在线观看| 亚洲免费国产视频| 欧美1—12sexvideos| 久9re热视频这里只有精品| av亚洲在线观看| 久久99精品国产91久久来源| 综合在线观看色| 欧美中文字幕不卡| 久久精品国产91精品亚洲| 国产精品美女黄网| www.亚洲高清| 国产精品111| 天堂a√在线| 国产精品xnxxcom| 青青草国产成人a∨下载安卓| 国产精品va| 久草中文综合在线| 亚洲一区精品在线| 在线观看视频亚洲| 国产一区二区免费电影| 日本xxxx黄色| 日本视频网站在线观看| se在线电影| 欧美顶级毛片在线播放| 看片的网站亚洲| 日韩欧美第一页| 国产视频精品xxxx| 亚洲xxx自由成熟| 日本va中文字幕| 久久丫精品久久丫| www.av在线| 久久99国产成人小视频| 丁香激情综合国产| 亚洲成人免费观看| 另类视频在线观看| 亚洲精品国产精品国自产观看| 国产精品第12页| 久久婷婷一区二区| av在线免费播放网站| 最新国产精品视频| 不卡的av中国片| 精品国免费一区二区三区| 欧美人在线视频| 亚洲精品久久久久久一区二区| 四季av一区二区| 日本天堂网在线| av网站大全在线| 欧美一区综合| 亚洲激情校园春色| 国产精品99久久久久久董美香 | 精品视频成人| 久久91精品国产91久久小草| 91久久精品国产91性色tv| 538国产精品一区二区在线 | 国产一区二区不卡视频在线观看| 日韩黄色片在线| 免费在线一区二区三区| 黄色免费网站在线| 亚洲一级淫片| 一区二区三区小说| 91国内免费在线视频| 亚洲中文字幕无码不卡电影| 在线观看亚洲天堂| 综合日韩av| 天天做天天爱天天综合网| 亚洲同性gay激情无套| 亚洲成成品网站| 激情五月综合色婷婷一区二区| 男女啪啪网站视频| 亚洲性生活大片| 欧美啪啪网站| 高清在线成人网| 国产一级18片视频| 欧美5-7sexvideos处| 精品无人区一区二区| 91理论电影在线观看| 亚洲色图国产精品| 影音先锋成人资源网站| 日本三级理论片| 无码小电影在线观看网站免费 | 成年人视频免费| 成人av免费| 亚洲美洲欧洲综合国产一区| 91黄视频在线| 国产综合色一区二区三区| 久久午夜福利电影| 黄动漫在线看| 日韩久久久久| 欧美日韩国产区| 91精品国产91久久久久青草| 在线观看高清免费视频| www.亚洲天堂.com| 日本成人7777| 亚洲综合色噜噜狠狠| 国产精品国产自产拍高清av水多| 欧美 日本 亚洲| www.成人精品| 激情综合网站| 一本大道久久a久久精品综合| 91精品国产777在线观看| 色国产在线视频| 美女网站在线观看| 欧美~级网站不卡| 欧美艳星brazzers| 欧美高清视频一区| 91国产丝袜播放在线| 麻豆久久久久| 国产精品私人自拍| 国产精品久久久久久久久久久久久| 欧洲av无码放荡人妇网站| 欧美性猛交 xxxx| 99热在线成人| 欧美一区二区在线视频| 在线免费观看成人网| 成人性生活毛片| 欧美va视频| 国产欧美一区二区精品性色 | 欧美日韩ab| 337p亚洲精品色噜噜狠狠| 亚洲毛片aa| 国产精品九九九九| 成久久久网站| 亚洲一区二区高清| 97免费高清电视剧观看| 色在线观看视频| 国产高清亚洲| 一区二区三区不卡视频在线观看| 性欧美暴力猛交69hd| 中文字幕精品久久久| 羞羞视频在线观看免费| 亚洲一区二区三区高清不卡| 欧美在线观看一区二区| 日韩国产一区久久| 中文字幕在线观看1| 成人精品亚洲| 欧美一区二区三区白人| 久久亚洲精品欧美| 国产伦精品一区二区三区视频网站| 99re久久| 一片黄亚洲嫩模| 成人激情综合网| 黄色一级视频免费| 成人看片黄a免费看视频| 福利微拍一区二区| 99精品视频网站| 中文字幕视频二区| 国偷自产av一区二区三区| 在线观看日韩高清av| 亚洲第一精品区| 日本久久一级片| 久久动漫亚洲| 九九久久综合网站| 一区二区黄色片| 久久亚洲人体| 欧美午夜激情视频| 大胆欧美熟妇xx| 四虎影视在线观看2413| 激情婷婷欧美| 日韩中文字幕在线| 少妇特黄一区二区三区| 91精品视频一区二区| 色偷偷成人一区二区三区91 | 日韩国产精品毛片| 在线视频国产三级| 国产在线国偷精品免费看| 中文字幕少妇一区二区三区| 大肉大捧一进一出好爽视频| 国产在线一在线二| 奇米精品一区二区三区在线观看一 | 国产精品美女久久久久人| 天天操天天综合网| 麻豆映画在线观看| 日本一区高清| 97精品久久久久中文字幕| 91九色蝌蚪成人| 国产精品天天操| 欧美一区=区| 91精品国产高清自在线看超| 欧美黑吊大战白妞| 日韩在线观看电影完整版高清免费悬疑悬疑| 色婷婷久久一区二区三区麻豆| 免费久久久一本精品久久区| 亚洲高清精品视频| 久久激五月天综合精品| 国产日本欧美在线观看| 免费中文字幕在线| 国产高清日韩| 欧美一级视频精品观看| aaa一级黄色片| 成人精品一区二区三区电影| 欧美综合一区二区| 性生活免费在线观看| 成人美女大片| 91福利在线看| 亚洲最大综合网| 新片速递亚洲合集欧美合集| 国产精品久99| 黄色小网站91| 亚洲精品97久久久babes| 99精品桃花视频在线观看| 久久综合福利| 国产一二三在线观看| 国产喷白浆一区二区三区| 97久久精品午夜一区二区| 国产xxxx在线观看| 丁香网亚洲国际| 色姑娘综合网| 日本激情一区二区三区| 成人18精品视频| 婷婷精品国产一区二区三区日韩| 国产黄色一级大片| 国产盗摄精品一区二区三区在线| 国产激情999| 国产精品系列视频| 国产69精品久久久久777| 亚洲一区二区在线免费看| 日韩欧美亚洲成人| 精品中文字幕av| 黄网页免费在线观看| 久久综合色一综合色88| 亚洲国产综合自拍| 在线中文字幕电影| 日韩一区欧美小说| 午夜视频久久久| 亚洲淫性视频| 91成人在线精品| 精品无码av一区二区三区| 网红女主播少妇精品视频| 欧美精品一区二区三区高清aⅴ | 少妇愉情理伦片bd| 欧美精品中文| 美女撒尿一区二区三区| 性欧美videos| 一区二区三区四区五区精品视频| 欧美大荫蒂xxx| 亚洲综合精品国产一区二区三区| 国产视频一区免费看| 亚洲free性xxxx护士hd| 亚洲一区在线日韩在线深爱| 成年人国产精品| 成人一级生活片| 成人国产精品| 在线成人免费网站| www.欧美色| 不卡影院免费观看| 免费看欧美一级片| 欧美亚洲综合视频| 在线色欧美三级视频| 天天爱天天做天天爽| 高清不卡在线观看| 国产自产在线视频| 欧美国产亚洲精品| 久热精品视频在线观看一区| 国产影视一区二区| 欧美高清在线精品一区| 只有这里有精品| 桃色一区二区| 欧美一区二区三区影视| 日韩无码精品一区二区| 亚洲欧美网站在线观看| 成人亚洲激情网| 91精彩视频在线观看| 欧美日韩在线三级| 免费观看污网站| 欧美一区高清| 久久99精品国产99久久| wwww亚洲| 精品亚洲一区二区三区在线播放 | 日本成人a网站| 日韩av毛片网| 成人在线免费电影| 51久久夜色精品国产麻豆| 青青青在线视频| 国产成人在线视频免费播放| 日韩在线视频在线| 亚洲视频一起| 最近2019中文免费高清视频观看www99| 国产精品免费在线视频| 久久成人免费电影| 精品国产一区二区三区无码| 亚洲国产成人二区| 日韩视频永久免费观看| 国产91免费看| 福利一区福利二区微拍刺激| 人妻换人妻仑乱| 在线 亚洲欧美在线综合一区| 91精品久久久久久久| 麻豆传媒视频在线观看| 欧美电影免费提供在线观看| 99久久精品久久亚洲精品| 久久精品国产亚洲一区二区三区 | 色琪琪一区二区三区亚洲区| 99精品中文字幕| 国产aⅴ精品一区二区三区色成熟| 午夜视频久久久| 国产精品美女久久久久| 日本午夜人人精品| 黄色精品在线观看| 亚洲午夜久久久影院| 日本a级c片免费看三区| 国产精品欧美久久久久无广告 | 色婷婷狠狠18禁久久| 99精品福利视频| 老司机午夜网站| 久久99蜜桃| 欧美二区三区| 国产精品18hdxxxⅹ在线| 91亚洲国产精品| 日韩欧美一区二区三区在线观看| 亚洲欧美制服第一页|