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

If you want your land to keep fertile, you must try to stop soil from being carried away by water or wind. When soil is taken away by flowing water or blowing winds we call it soil erosion. Ways have been found to stop soil erosion, and this is known as soil conservation. One way of stopping soil erosion is to grow small plants such as grass. These plants are referred to a cover crops, whose roots hold the soil tightly together. The rain water can not wash away the soil. When trees and tall bushes are planted at the edges of an open field, soil erosion by strong winds can not take place. The trees and bushes, which act as a very big and firm wall, protect the open land from the winds. The way to stoop soil erosion on slopes is to build terraces on the slope of hillside and mountainside. When the slope of a hillside is cut into “step”, water carrying soil can not run straight down the terraces, which are used to slow down the speed of the flowing water containing much soil in it. In this way most of the soil in the water is left behind on the terraces, much soil in it.
【小題1】What takes place in soil erosion?

A.Flood happens to the fertile land
B.A large quantity of the soil loses away gradually.
C.Terraces are built on the slope of hillside or mountainside.
D.Plants are grown to protect the open land
【小題2】“Cover crops” in this passage means _________.?
A. grass        B. trees and bushes     C. plants life and an area
E.   covering plants that produce grain or vegetables
【小題3】Besides growing small plants, another method to fight against soil erosion is to ___________.
A.build terracesB.build wallsC.plant treesD.plant tall bushes
【小題4】According to the passage, trees and tall bushes are planted around an open field ________________.
A.because their roots hold soil tightly
B.to stop soil from being blown away by winds.
C.Because soil erosion causes terrible damages to crops
D.To keep the balance of nature
【小題5】Which of the following is the best title of the passage?
A.What Causes Soil Erosion
B.The Importance of Erosion
C.Rain Erosion and Wind Erosion
D.Erosion and the Way of Tight against Erosion


【小題1】B
【小題2】C
【小題3】A
【小題4】B
【小題5】D

解析

練習冊系列答案
相關習題

科目:高中英語 來源:活題巧解巧練·高二英語·下 題型:050

閱讀理解

  Chess-playing machines were a common feature at the 19th century carnivals(狂歡節) .They would take on all competitors and usually wan, but they were all frauds(騙局)with human beings concealed inside.

  Two centuries later, the “machine” is real.

  A computer programmer Deep Fritz held world champion, Vladimir Kramnik, to a 4-4 tie. In doing so, Kramnik felt just short of avenging (復仇)the 1997 defeat of his predecessor Garry Kasparov at the hands of IBM's Deep Blue.

  Deep Fritz is a commercially available product produced by Germany's Chessbase Gmbh. In this match it was running on 8,900 Mhz processors and could analyze 3 million positions a second.

  Kramnk admitted he found the match exhausting. “ I need some time to recover. ”he said comparing the match with his 2000 defeat of Kasparov. “The pressure is similar but preparing against a computer is much more difficult. It has all the knowledge and you have to be prepared for all openings. With a human, you know that certain openings don't suit his style and won't happen, but not with a computer. ”

  “The games themselves were different,” he said, “Against a computer, you have a feeling that if you make one mistake, it's over. So it's like going through a minefield. You're always watching for tactics, even in a quiet position.”

  He also said that computers play faster. “The game has a different rhythm and it puts more pressure on you.”

  “The main problem, ”he said, “is that you can never understand its logic. In a human sense, it has no logic. With a human opponent, you feel him and you know what path he will take.”

  Chess enthusiasts have been arguing for centuries whether it's an art, a science, a sport or something else.

  Kramnik doesn't see the emergence of computers making any difference to this argument. “Chess is very wide. It's not merely these things but a small model of the world. ”

  Next spring, Kramnik is scheduled to defend his title as Einstein Classical Chess World Champion against Peter Leko of Hungary. While he welcomes a rematch against Fritz, it's not certain when it will take place.

1.The difficulties of competing with the computer doesn't lie in that ________.

[  ]

A.you can never understand its logic

B.the computer plays faster

C.it has all knowledge and you have to prepare for all openings

D.if you make one mistake, it's over

2.The underlined word “exhausing” ( in Para. 5 ) means ________.

[  ]

A.making something interesting

B.making someone excited

C.making someone tired

D.making something endless

3.Put the following events in the right order:

(1) Garry Kasparov was defeated by Deep Blue .

(2)Chess-playing machines were not real.

( 3 ) After competing with Deep Fritz, Kramnik felt exhausted .

(4)Kramnik's competition with Peter Leko of Hungary.

[  ]

A.(2)-(4)-(1)-(3)

B.(2)-(1)-(3)-(4)

C.(2)-(3)-(4)-(1)

D.(1)-(A)-(3)-(2)

4.What did Kramnik think of the chess?

[  ]

A.It became more and more difficult after the chess-playing machines were invented.

B.Chess is an art, a science, a sport, etc.

C.It's more and more popular, with the computer developing.

D.Chess is a small world which is wide.

查看答案和解析>>

科目:高中英語 來源: 題型:

—How much if I wan to take one?

—You can take as many as you like because they are free of _____.

A. cost  B. charge  C. money  D. pay

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

Beijing, April 2----Starting from this year, the Beijing Municipal Health Bureau will begin to promote a home medical service. With this service a medical team which is made up of a doctor, a nurse and a medical health worker will be sent to some communities in the city. They will set up a medical filing recorder for every resident in community and publicize their contact information to them. If people in the community feel sick, they can consult their community doctor first. If community doctors cannot treat their illness, they will then be transferred to large hospitals. Liang Wan, deputy director of the Beijing Municipal Health Bureau, made the statement last Friday .

   In addition ,the Beijing Municipal Health Bureau will set up some funds to train home medical service workers for families whose members suffer either from high blood pressure, diabetes,cerebral apoplexy , or coronary heart disease . The home medical service workers will remind patients to take pills on time and lead the patients to follow some health tips in their daily life. They will also learn some practical knowledge to save patients in case of an emergency .

The work will first begin in the medical service room in the 25 community centers and spread to all communities in Beijing. The disease prevention and control centers at various counties and districts in Beijing will be responsible for teaching community doctors and giving home medical service lectures, or advice . These workers will not be able to work until they pass related examination and obtain the work certificates. It is expected that by the end of this year, there will be 10000 home medical service workers in Beijing .

26. Where does a person go to see first if he gets sick according to the passage ?

A. The community clinics.           B. Large hospital .

C. Private clinic .                  D. Small hospital .

27. Which of the following is NOT true according to the passage?

A.The medical team which is made up of a doctor, a nurse and a medical health worker will set up a medical filing record for every resident.

B. The home medical service workers not only give some healthy suggestions to the patients, but also learn practical knowledge about first aid.

C. Some funds will be provided by Beijing Municipal Health Bureau for home medical service training.

D. The government aims to offer the home medical service for free.

28. If you want to work as a home medical worker, you need to _____________.

A. receive the training about medical service.

B. pass related examinations.

C. obtain the work certificates.

D. All the above.

29. What can we learn from the passage?

A. All communities in Beijing have started home medical service.

B. People in Beijing will not easily get ill.

C. Medical service in Beijing will be promoted greatly in the future.

D. The other cities in China should learn from Beijing.

30. The main purpose of the passage is __________

A. to introduce community service in Beijing.

B. to report home medical service available in Beijing.

C. to provide some efficient treatments for diseases in community.

D. to describe a special medical team in Beijing.

查看答案和解析>>

科目:高中英語 來源:2013-2014學年甘肅省高三下學期第一次診斷考試英語試卷(解析版) 題型:閱讀理解

Beijing, April 2----Starting from this year, the Beijing Municipal Health Bureau will begin to promote a home medical service. With this service a medical team which is made up of a doctor, a nurse and a medical health worker will be sent to some communities in the city. They will set up a medical filing recorder for every resident in community and publicize their contact information to them. If people in the community feel sick, they can consult their community doctor first. If community doctors cannot treat their illness, they will then be transferred to large hospitals. Liang Wan, deputy director of the Beijing Municipal Health Bureau, made the statement last Friday .

In addition ,the Beijing Municipal Health Bureau will set up some funds to train home medical service workers for families whose members suffer either from high blood pressure, diabetes,cerebral apoplexy , or coronary heart disease . The home medical service workers will remind patients to take pills on time and lead the patients to follow some health tips in their daily life. They will also learn some practical knowledge to save patients in case of an emergency .

The work will first begin in the medical service room in the 25 community centers and spread to all communities in Beijing. The disease prevention and control centers at various counties and districts in Beijing will be responsible for teaching community doctors and giving home medical service lectures, or advice . These workers will not be able to work until they pass related examination and obtain the work certificates. It is expected that by the end of this year, there will be 10000 home medical service workers in Beijing .

1.Where does a person go to see first if he gets sick according to the passage ?

A. The community clinics.?????????? B. Large hospital .

C. Private clinic .???????? ???????? D. Small hospital .

2.Which of the following is NOT true according to the passage?

A.The medical team which is made up of a doctor, a nurse and a medical health worker will set up a medical filing record for every resident.

B. The home medical service workers not only give some healthy suggestions to the patients, but also learn practical knowledge about first aid.

C. Some funds will be provided by Beijing Municipal Health Bureau for home medical service training.

D. The government aims to offer the home medical service for free.

3.If you want to work as a home medical worker, you need to _____________.

A. receive the training about medical service.????????

B. pass related examinations.

C. obtain the work certificates.???????????????????

D. All the above.

4.What can we learn from the passage?

A. All communities in Beijing have started home medical service.

B. People in Beijing will not easily get ill.

C. Medical service in Beijing will be promoted greatly in the future.

D. The other cities in China should learn from Beijing.

 

查看答案和解析>>

科目:高中英語 來源: 題型:單選題

---How much if I wan to take one?
---You can take as many as you like because they are free of _____


  1. A.
    cost
  2. B.
    charge
  3. C.
    money
  4. D.
    pay

查看答案和解析>>

同步練習冊答案
亚洲少妇久久久| 91综合网人人| 成人黄色免费观看| 电影在线观看一区| 日韩123区| 91亚洲天堂| 蜜桃视频网站在线| jizz在线观看视频| 国产私人尤物无码不卡| 日韩在线无毛| 免费人成在线观看网站| 蜜桃tv在线播放| 无码国精品一区二区免费蜜桃| 国产乱人乱偷精品视频a人人澡| 波多野结衣视频网址| 一区二区三区福利视频| avove在线播放| 日韩在线观看视频一区二区| 久久久久人妻一区精品色| 亚洲毛片亚洲毛片亚洲毛片| 2019男人天堂| 久久av红桃一区二区禁漫| 国产熟女一区二区| 日韩欧美黄色网址| 国产一二三区精品| 久久亚洲成人av| 久久久久久久久久免费视频| 国产性猛交╳xxx乱大交| 国产污污视频在线观看| 五月婷婷亚洲综合| 无码人妻精品一区二| 中文字幕人妻互换av久久| 国产一区二区女内射| 国产麻豆精品一区| 最近中文字幕mv第三季歌词 | 伊人在我在线看导航| 成年人黄色大片在线| 久久久一本精品| 国产麻豆精品| 蜜桃国内精品久久久久软件9| 精品视频日韩| 国内精品久久久久久久影视蜜臀| 日韩一级免费| 久久99精品国产.久久久久久| 久久国产精品露脸对白| 成人免费高清在线| 中文字幕精品三区| 亚洲国产一区二区视频| 日韩欧美国产黄色| 91.麻豆视频| 国产视频自拍一区| 欧美刺激性大交免费视频| 国产91ⅴ在线精品免费观看| 国产欧美一区二区三区四区| 精品伦精品一区二区三区视频| 天堂社区 天堂综合网 天堂资源最新版| 亚洲日本一区二区三区在线不卡| 欧美午夜性视频| 亚洲天堂av一区二区| 国产精品jizz| 欧美亚洲天堂网| 国产巨乳在线观看| 青春有你2免费观看完整版在线播放高清| 日本综合在线| 国产欧美自拍| 精品香蕉视频| 免费看亚洲片| 97成人超碰视| 欧美午夜激情小视频| 欧美精品一区二区三区蜜桃| 久久精品国产欧美亚洲人人爽| 欧美最猛性xxxxx亚洲精品| 中文字幕av一区二区三区| 成人xxxx| av在线app| 日韩成人在线一区| 日本久久一二三四| 美女网站色91| 国产精品久久毛片| 欧美精品xxxxbbbb| 日韩一级裸体免费视频| 国产精品一区二区女厕厕| 日本高清不卡一区二区三| 日韩欧美视频网站| 国产男女猛烈无遮挡a片漫画| 国产无码精品视频| 2023欧美最顶级a∨艳星| 欧美人与性动交α欧美精品济南到| 国产精品美女久久久久人| 亚洲一区二区三区无吗| 国产精品资源网站| 午夜精品123| 国产亚洲精品久久久久久777| 国产精品国产三级国产aⅴ浪潮| 热舞福利精品大尺度视频| 国产又粗又长又大的视频| 99成人在线观看| 精品国产九九九| 蜜臀av在线| 日韩精品免费一区二区夜夜嗨| 欧美亚洲一区二区三区| 国产精品剧情在线亚洲| 日韩一级黄色大片| 欧美在线观看网址综合| 色婷婷精品国产一区二区三区| 欧美丝袜在线观看| 成人免费a视频| 黄色av免费在线观看| 亚洲国产综合在线观看| 99国产精品视频免费观看一公开| 欧美国产在线观看| 亚洲黄色成人网| 成人国产精品一区| 青青草原av在线播放| 中日韩一级黄色片| h色视频在线观看| 91在线成人| 亚洲第一黄色| 国产最新精品视频| 亚洲成人教育av| 国产精品美女久久久久av超清| 伊人久久大香线蕉精品| avtt香蕉久久| 性网爆门事件集合av| 888av在线视频| 青青在线视频观看| 99精品在线免费视频| 一级黄色毛毛片| 屁屁影院在线观看| 精品中文在线| 久久精品国产亚洲高清剧情介绍| 午夜国产精品一区| 欧美激情xxxx性bbbb| 中文字幕一区二区三区最新| 日韩免费成人av| 一个人免费观看视频www在线播放| 精品国产一区二| 狠狠色丁香久久婷婷综合_中| 日韩欧美在线一区| 欧美又大粗又爽又黄大片视频| 国产xxxx振车| 日本五十熟hd丰满| 一区二区三区伦理| 韩日成人av| 午夜久久久影院| 国a精品视频大全| 亚洲熟妇国产熟妇肥婆| 99久在线精品99re8热| 中文字幕资源网在线观看| 亚洲精品va| 亚洲国产一区二区视频| 欧美亚洲第一页| 亚洲中文字幕久久精品无码喷水 | 国产精品极品美女粉嫩高清在线| 日本在线观看a| 中文字幕永久在线视频| 久久99久久久精品欧美| 九九国产精品视频| 亚洲成人激情在线| 欧美成人dvd在线视频| 在线观看免费小视频| 高清中文字幕一区二区三区| 欧美一二区在线观看| 亚洲色图欧洲色图婷婷| 欧美激情a在线| 丁香婷婷激情网| 国产a级免费视频| 日韩高清二区| 中文字幕二三区不卡| 久久国产精品久久久| 免费超爽大片黄| 国产精品欧美综合| 成人一级视频| jizz一区二区| 久久久国产在线视频| bt天堂新版中文在线地址| 亚洲 欧美 中文字幕| 精品三区视频| 波多野结衣91| 久久精品中文字幕| 国产成人a亚洲精v品无码| 91精品中文字幕| 国产精品chinese在线观看| 欧美国产亚洲另类动漫| 午夜精品免费视频| aaa一级黄色片| 青青青草网站免费视频在线观看| 91麻豆精品国产91久久久平台| 午夜精品福利视频网站| 91精品天堂| 日韩不卡av在线| 国产白丝在线观看| 国产真实乱子伦精品视频| 亚洲欧美成人网| av女优在线播放| 国产av精国产传媒| 欧美限制电影| 日本乱人伦一区| 老牛影视免费一区二区| 日本少妇激情视频| 欧美经典一区| 亚洲精品国产高清久久伦理二区| 国产在线高清精品| 91大神福利视频| 26uuu亚洲电影| 久久久精品免费观看| 日韩美女免费观看| 亚洲码无人客一区二区三区| 蜜桃传媒在线观看免费进入| 国产成人午夜片在线观看高清观看| 久久精品久久久久久| 午夜天堂在线视频| 老司机午夜在线视频| 韩国三级电影一区二区| 久久成人在线视频| 性感美女一区二区三区| 亚洲色图美国十次| 成人动漫在线一区| 日韩av电影在线免费播放| 日本二区在线观看| 88xx成人永久免费观看| 国产精品福利在线播放| 亚洲free性xxxx护士hd| 精品视频久久久久| 国产精品调教视频| 在线精品国精品国产尤物884a| 欧美一区二视频在线免费观看| www.久久网| 亚洲成人三区| 日韩大片免费观看视频播放| jizz欧美激情18| 浪潮av一区| 99久久国产免费看| 成人两性免费视频| 99久在线精品99re8热| 免费视频一区三区| 欧美一区二区三区在线视频| 霍思燕三级露全乳照| 三区在线视频| 国产精品影视网| 欧美壮男野外gaytube| 天海翼在线视频| 国产精品美女在线观看直播| 欧美性淫爽ww久久久久无| 美女黄色免费看| 黄色片在线播放| 国产999精品久久| 国产热re99久久6国产精品| 日本亚洲欧美在线| 日韩大片在线| 国产视频久久网| 久久久久亚洲av成人网人人软件| 这里有精品可以观看| 亚洲免费观看高清完整版在线观看熊 | 亚洲国产wwwccc36天堂| 久久综合毛片| 亚洲精品无amm毛片| 视频一区中文字幕国产| 久久久女女女女999久久| 精品人体无码一区二区三区| 岛国一区二区| 一本色道久久综合亚洲aⅴ蜜桃 | 亚洲国产精品久久| 亚洲天堂一区二区在线观看| 888av在线视频| 亚洲专区一二三| www.69av| 91官网在线| 国产精品成人免费在线| 亚洲一区二区免费视频软件合集 | 成人vr资源| 永久免费看mv网站入口亚洲| 大地资源二中文在线影视观看 | 91美女片黄在线观| 亚洲在线精品视频| 日韩国产欧美在线播放| 日韩美女视频中文字幕| 青青草成人av| 99精品福利视频| 青草热久免费精品视频| 69av视频在线观看| 视频一区二区中文字幕| 国产精品成人国产乱一区| 黄色大全在线观看| 免费成人性网站| 91精品视频一区| www.久久久久久久久久| 国产真实精品久久二三区| 99久久免费国| 一个人看的www一区| 91色porny蝌蚪| 亚洲成人自拍| 日本不卡视频| 亚洲国产成人av网| 成熟老妇女视频| 午夜av成人| 日韩一区二区三区视频在线| 在线观看免费视频黄| 精品福利网址导航| 中文字幕亚洲欧美日韩高清| 久久久99999| 中文字幕一区二区三三| 97成人超碰免| 国产xxxx孕妇| 99久久99久久精品免费观看| 五月天久久狠狠| av免费在线观看网址| 午夜精品一区二区三区电影天堂| 国产熟人av一二三区| 欧美视频在线视频精品| 精品av久久707| 一级片黄色录像| 欧美日韩亚洲一区| 国产精品私拍pans大尺度在线| 亚洲精品久久久久久动漫器材一区| 成人一级片在线观看| 一区二区三区电影| 日韩精品卡一| 欧美另类z0zxhd电影| 日韩在线免费观看av| 91高清一区| 国产精品视频一区二区三区四 | 黄色av网站在线播放| 欧美天堂在线观看| 91人妻一区二区| 欧美色蜜桃97| 国产成人一区二区三区小说| 黄色一级大片在线免费看国产| 久久久久久久久免费| 国产人妻777人伦精品hd| 欧美日一区二区三区| 日韩精品中文字幕在线| 久久久久久久99| 国内成+人亚洲+欧美+综合在线| 日韩精品不卡| av综合电影网站| 日韩国产在线播放| 中文字幕在线观看视频网站| 狠狠色丁香久久婷婷综合_中| 亚洲黄色成人久久久| 人狥杂交一区欧美二区| 亚洲激情视频网| www.日本精品| 成人高清免费观看| 少妇无码av无码专区在线观看| 国产精品亚洲欧美日韩一区在线 | 97中文字幕在线| 欧美黄色网络| 久久偷看各类女兵18女厕嘘嘘| 91极品身材尤物theporn| 国产偷国产偷精品高清尤物| www.日日操| 国产成人精品一区二区免费看京 | 中文字幕在线不卡一区| 亚洲一区日韩精品| 97视频热人人精品免费| 亚洲自拍欧美另类| 国产人成网在线播放va免费| 欧美精选午夜久久久乱码6080| 欧美手机在线观看| 国产一区二区不卡| 黄色美女一级片| 成人白浆超碰人人人人| 凹凸国产熟女精品视频| 欧美日韩大片免费观看| 国产精品久久91| 成人午夜在线观看视频| 欧美一区二区大片| 国产欧美日韩另类| 久久综合久色欧美综合狠狠| 日本不卡一区二区在线观看| 婷婷综合伊人| 精品国产一区二区三| 日韩大片欧美大片| 久久亚洲精品成人| 色网在线视频| 欧美日韩成人在线| 4438国产精品一区二区| 欧美国产精品专区| 95视频在线观看| 久久亚洲图片| 国产 欧美 日韩 一区| 偷拍一区二区| 国产精品一 二 三| 久久电影tv| 性视频1819p久久| 岛国在线大片| 亚洲毛片在线观看| 日本黄色三级视频| 欧美人与性动xxxx| 亚洲 欧美 中文字幕| 亚洲免费av高清| 成人黄色短视频| 91在线视频网址| 在线播放第一页| 精品一区二区在线观看| 波多野结衣天堂| 一本色道久久综合一区| 国产乱子伦精品视频| 欧洲激情综合|