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

Astronomers and scientists think that a black hole is a region of space ______ which matter has fallen and _______ which nothing can escape.


  1. A.
    into; from
  2. B.
    towards; towards
  3. C.
    out of; from
  4. D.
    through; through
A
試題分析:考察定語從句中的介詞。本題定語從句的先行詞是a region of space。第一空中的介詞into是由動詞短語fall into…轉換而來;第二空的from是有動詞短語escape from…轉換而來。句意:宇航員和科學家認為黑洞是太空中的一個區域,物質進入了那個區域以后就什么也逃脫不出來了。故A正確。
考點:考察定語從句中的介詞
點評:本題是把定語從句中的介詞提前到關系代詞的前面,定語從句的關系詞前面的介詞有三種來源:先行詞的固定搭配,定語從句中的固定搭配,以及根據句子的意思選擇的介詞。
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

Once in a blue moon there is one on New Year's Eve. Revelers ringing in 2010 will be treated to a so-called blue moon. According to popular definition, a blue moon is the second full moon in a month. But don't   1   it to be blue - the name has nothing to   2   the color of our closest celestial(天體) neighbor.

A full moon   3   on December 2. It will appear again on Thursday in time for the New Year's countdown.

"If you're in Times Square, you'll see the   4   moon right above you. It's going to be that brilliant," said Jack Horkheimer, director emeritus of the Miami Space Transit Planetarium and host of a weekly astronomy TV show.

The New Year's Eve blue moon will be   5   in the United States, Canada, Europe, South America and Africa. For partygoers in Australia and Asia, the full moon does not show up  6   New Year's Day, making January a blue moon month for them.

However, the Eastern Hemisphere can celebrate with a partial lunar eclipse(月蝕) on New Year's Eve when  7   of the moon enters the Earth's shadow. The   8   will not be visible in the Americas.

A full moon occurs   9   29.5 days, and most years have 12.  10  , an extra full moon in a month - a blue moon - occurs every 2.5 years. The   11   time there was a lunar double take was in May 2007. New Year's Eve blue moons are rarer, occurring every 19 years. The last time was in 1990; the next one won't   12    again until 2028.

Blue moons have no astronomical   13   , said Greg Laughlin, an astronomer at the University of California, Santa Cruz.

"`Blue moon' is just a   14   in the same sense as a `hunter's moon' or a `harvest moon,'" Laughlin said in an e-mail.

The popular definition of blue moon   15   after a writer for Sky & Telescope magazine in 1946 misunderstood the Maine Farmer's Calendar and marked a blue moon as the second full moon in a month. In fact, the calendar   16   a blue moon as the third full moon in a season with four full moons, not the usual three.

Though Sky & Telescope corrected the  17   decades later, the definition caught on. For purists(語言純正癖者), however, this New Year's Eve full moon doesn't even qualify as a   18   moon. It's just the first full moon of the winter season.

In a tongue-in-cheek essay   19   on the magazine's Web site this week, senior contributing editor Kelly Beatty wrote: "If skies are clear when I'm    20  celebrating, I'll take a peek(瞇著眼睛看) at that brilliant orb(天體) as it rises over the Boston skyline to see if it's an icy shade of blue. Or maybe I'll just howl."

(   ) 1. A. wish                  B. wait                        C. hope               D. expect

(   ) 2. A. deal with            B. do with                   C. develop with     D. form into

(   ) 3. A. occurred            B. came                      C. ran                   D. went

(   ) 4. A. full                   B. half                         C. bright               D. part

(   ) 5. A. out of sight               B. visible                     C. big                   D. clear

(   ) 6. A. until                  B. when                      C. before              D. since

(   ) 7. A. part                   B. all                           C. any                  D. none

(   ) 8. A. moon                 B. eclipse                     C. sun                  D. shadow

(   ) 9. A. each                  B. every                             C. either                      D. all

(   ) 10. A. On the whole    B. Generally speaking   C. On average       D. In addition

(   ) 11. A. last                  B. next                        C. other               D. another

(   ) 12. A. go                   B. see                          C. come               D. look

(   ) 13. A. point               B. evident                    C. theory              D. significance

(   ) 14. A. name                      B. object                      C. phenomenon     D. tradition

(   ) 15. A. created             B. came about              C. made               D. copied

(   ) 16. A. named              B. called                      C. introduced               D. defined

(   ) 17. A. error               B. name                      C. reality              D. number

(   ) 18. A. blue                 B. red                          C. yellow              D. grey

(   ) 19. A. published        B. posted                     C. printed             D. written

(   ) 20. A. in                    B. out                          C. away               D. on

查看答案和解析>>

科目:高中英語 來源:2012-2013學年遼寧省沈陽同澤女中高二下學期第一次月考英語試卷(帶解析) 題型:單選題

The newly-­discovered star was named ________ a Chinese astronomer ________ honor of his contributions to astronomy.

A.for;inB.after;for
C.as;inD.after;in

查看答案和解析>>

科目:高中英語 來源:2013屆黑龍江齊齊哈爾實驗中學高三三模英語試卷(帶解析) 題型:閱讀理解

Still waiting for little green men to make contact? Don't hold your breath.
A leading astronomer has concluded there probably aren't any aliens out there – meaning we are absolutely alone in the universe.
Even though there may be tens of thousands of other distant planets similar in size to Earth, the conditions on them are likely to be too hard to support life-forms such as ET.
Dr Howard Smith, a senior astrophysicist at Harvard University, believes there is very little hope of discovering aliens and, even if we did, it would be almost impossible to make contact.
So far astronomers have discovered a total of 500 planets in distant solar systems – known as extrasolar systems – although they believe billions of others exist.
But Dr Smith points out that many of these planets are either too close to the sun or too far away, meaning their surface temperatures are so bad that they could not support life. Others have unusual orbits which cause vast temperature variations, making it impossible for water to exist – the most important thing for life.
Dr Smith said, "We have found that most other planets and solar systems are wildly different from our own. It means it is highly unlikely there are any planets with intelligent life close enough for us to make contact." But his suggestions contradict other leading scientists who have claimed aliens almost certainly exist.
Only last month Professor Stephen Hawking said the fact that there are billions of galaxies out there made it reasonable to think there were other life-forms in the universe.
Researchers from the University of London have recently suggested that aliens could be living on as many as 40,000 other planets. But Dr Smith said: "Any hope of contact has to be limited to a relatively tiny space around the Earth, reaching maybe 1,250 light years out from our planet, where aliens might be able to pick up our signals or send us their own. But communicating would still take decades or centuries."
【小題1】By saying "don’t hold your breath", the author advised the reader not to _____.

A.keep silentB.give upC.expect soD.be afraid
【小題2】Dr Smith concludes there probably aren’t any aliens because other planets _____.
A.are too far away from the earth
B.are different from the Earth in size
C.don’t have rich natural resources
D.don’t have a suitable living environment
【小題3】Researchers from the University of London are mentioned to show that ______.
A.they have better explanations about aliens
B.aliens certainly exist on many planets
C.they disagree with Dr Smith’s suggestion
D.aliens can pick up signals from the earth
【小題4】What’s the main idea of the text?
A.There must be other life forms in the universe.
B.We can communicate with aliens in decades.
C.The chances of finding aliens are slight.
D.Many other planets are quite different from the Earth.

查看答案和解析>>

科目:高中英語 來源:河南省濮陽市2010屆高三下學期第一次模擬考試 題型:閱讀理解


(D)
Inventor,physicist,surveyor,astronomer,biologist,artist…Robert Hooke was all these and more.Some say he Was the greatest experimental scientist of the 17th century.In the course of his work,he cooperated with famous men of science like Isaac Newton,and the great architect, Chrish@ler Wren.
Hoocke's early education began at home,under the guidance of his father.He entered Westnfinster School at the age of 13,and from there went to Oxford,where he came in contact with some of the best scientists in England.Hooke impressed them with his skills at designing experiments and inventing instruments.In 1662,at the age of 28, he was named Curator of
Experiments at the newly formed Royal Society of London—meaning that he was responsible for demonstrating new experiments at the society’s weekly meetings.Hooke accepted the job,even though he knew that the society had no money to pay him!
Watching living things through a microscope was one of his favorite pastimes.He invented a compound microscope for this purpose.One day while observing a cork(軟木塞)under a microscope,he saw honeycomb-like structures.They were cells—the smallest units of life.In fact,it was Hooke who invented the term“cell” as the boxlike ceils of the cork reminded him of the cells of a monastery(修道院).
Another achievement Of Hook’s was his book Micrographi which introduced the.Enormous potential of the microscope.It contains fascinating drawings of the things he saw under the  microscope.The book also includes,among other things,ideas on gravity,light and combustion(燃燒)that may have helped scientists like Newton when they were developing their own theories on these phenomena.
Hooke made valuable contributions to astronomy too.A crater(坑)on the moon is named  after him in appreciation of his services to this branch of science.
68.Why possibly did Hooke accept the job as Curator of Experiments?
A. Because his parents couldn’t afford his education.
B.Because his family needed his support.
C.Because he wanted to please the famous scientists in England.
D.Because he liked designing experiments.
69.The cell got its name because of      .
A.its use    B.its shape    C.Hooke’s favorites D.Hooke’s experiences
70.The last paragraph is to prove that          .
A.Hooke was the greatest experimental scientist of the 17th century
B.Hooke was good at making discoveries
C.Hooke’s contributions were not limited to one field
D.Hooke was one of the greatest astronomers
71.The best title for the text may be          .
A.The Greatest Scientist                B.A Helper of Newtom
C.A Brief Introduction to Hooke          D.Achievements of Hook

查看答案和解析>>

科目:高中英語 來源:2010-2011學年四川省高三第一次月考英語卷 題型:單項填空

The newly discovered star was named    a Chinese astronomer    honour of his contributions                to astronomy.

A. for; in         B. after; for     C. as; in       D. after; in

 

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
韩国精品一区二区| 成人av网站在线观看免费| 一区二区三区四区av| 国产精品欧美久久久久无广告| 日韩一区二区视频在线观看| 欧美日韩精品专区| 欧美影视一区在线| 在线观看av一区| 色综合久久久久综合99| 高清视频一区二区| 国产精品资源在线观看| 国产白丝精品91爽爽久久| 国产麻豆精品久久一二三| 免费精品视频最新在线| 久久综合综合久久综合| 久久狠狠亚洲综合| 蜜桃视频在线一区| 亚洲另类在线视频| 国产婷婷色一区二区三区在线| 欧美中文字幕一区| 97久久超碰国产精品| 成人美女视频在线观看| 国产又黄又大久久| 青娱乐精品视频| 久国产精品韩国三级视频| 麻豆91在线观看| 精品写真视频在线观看| 狠狠久久亚洲欧美| 精品写真视频在线观看| 精品一区二区三区在线播放视频| 美洲天堂一区二卡三卡四卡视频| 免费一区二区视频| 国产一区久久久| 从欧美一区二区三区| 97se狠狠狠综合亚洲狠狠| 成人网男人的天堂| 欧美中文字幕一区二区三区亚洲| 欧美午夜精品一区二区三区| 在线播放中文一区| 久久网这里都是精品| 中文字幕亚洲视频| 亚洲午夜免费视频| 久久er精品视频| 99久久精品免费看国产免费软件| 99国产精品久| 欧美一区二区私人影院日本| 国产日韩欧美在线一区| 亚洲精品久久7777| 老司机午夜精品| 色伊人久久综合中文字幕| 欧美色图天堂网| 欧美精品一区二区三区一线天视频| 欧美性色黄大片| 欧美巨大另类极品videosbest | 日韩国产欧美视频| 国产精品一区二区在线播放| 欧美一区二区精品久久911| 热久久国产精品| 日韩视频在线永久播放| 国产一区三区三区| 久久精品免费在线观看| 国产美女娇喘av呻吟久久 | 欧美日韩国产片| 国产精品久久久久国产精品日日| 日韩电影在线看| 成人动漫在线一区| 久久精品人人做| 婷婷六月综合网| 欧美在线观看视频在线| 国产精品久久久久久亚洲伦| 精品午夜一区二区三区在线观看| 5566中文字幕一区二区电影| 亚洲色图视频网站| 福利一区福利二区| 国产欧美一区二区精品性| 亚洲影视在线观看| 狠狠v欧美v日韩v亚洲ⅴ| 欧美区在线观看| 色婷婷av一区二区三区软件 | 一本大道综合伊人精品热热| 国产成人精品影视| 麻豆精品精品国产自在97香蕉 | 一区二区免费看| 中文字幕在线一区二区三区| 久久久美女毛片| 欧美va亚洲va香蕉在线| 在线综合亚洲欧美在线视频| 欧美性大战久久久久久久蜜臀| 成人不卡免费av| 国产精品白丝av| 国产又粗又猛又爽又黄91精品| 秋霞影院一区二区| 视频一区二区三区在线| 亚洲国产综合91精品麻豆| 亚洲精品videosex极品| 综合欧美亚洲日本| 中文字幕一区二| 国产精品的网站| 中文字幕一区二区不卡| 亚洲国产成人自拍| 日本一区二区免费在线观看视频 | 另类成人小视频在线| 免费的国产精品| 日本aⅴ精品一区二区三区| 天堂一区二区在线| 日韩专区欧美专区| 日韩国产在线观看一区| 天堂久久久久va久久久久| 无码av中文一区二区三区桃花岛| 亚洲国产欧美日韩另类综合 | 一区二区免费在线播放| 亚洲一区二区三区三| 亚洲综合免费观看高清在线观看 | 亚洲最大成人网4388xx| 一区二区三区国产豹纹内裤在线 | 日韩av电影一区| 美女尤物国产一区| 精品一区二区三区日韩| 国产精品一区二区在线观看不卡| 国产乱子伦视频一区二区三区| 国产精品一二一区| 成人av在线影院| 91视频精品在这里| 欧美在线制服丝袜| 欧美日韩国产综合一区二区 | 亚洲视频在线一区| 一区av在线播放| 香蕉久久一区二区不卡无毒影院 | 国产99精品国产| 不卡一区二区中文字幕| 色偷偷88欧美精品久久久| 在线精品视频免费观看| 欧美精品第1页| 精品久久久久av影院| 国产欧美日韩激情| 亚洲麻豆国产自偷在线| 性做久久久久久免费观看| 免费美女久久99| 国产传媒一区在线| 色综合色综合色综合色综合色综合 | 欧美麻豆精品久久久久久| 欧美一个色资源| 国产亚洲欧美激情| 亚洲视频1区2区| 亚洲chinese男男1069| 精品亚洲国内自在自线福利| 风间由美一区二区三区在线观看 | 亚洲一区二区三区四区在线观看| 日韩成人一区二区三区在线观看| 韩日av一区二区| av激情综合网| 欧美高清一级片在线| 337p粉嫩大胆噜噜噜噜噜91av| 国产精品另类一区| 午夜私人影院久久久久| 国产呦萝稀缺另类资源| 91色|porny| 91精品国产乱| 国产精品乱码一区二三区小蝌蚪| 亚洲国产精品视频| 国产一区二区91| 色妹子一区二区| 日韩欧美一级特黄在线播放| 亚洲国产高清不卡| 天天亚洲美女在线视频| 国产福利一区二区| 欧美三级视频在线观看| 久久久久久亚洲综合| 亚洲一区二区三区国产| 国产一区二区剧情av在线| 欧美主播一区二区三区| 久久久久久久久蜜桃| 一区二区三区鲁丝不卡| 韩国成人在线视频| 在线国产电影不卡| 国产性色一区二区| 水蜜桃久久夜色精品一区的特点| 丁香桃色午夜亚洲一区二区三区| 欧美日韩情趣电影| 国产精品午夜在线| 蜜桃久久久久久久| 91官网在线免费观看| 久久久99久久| 天天av天天翘天天综合网色鬼国产| 国产91精品欧美| 91精品国产入口| 亚洲美女屁股眼交3| 国产乱码精品一区二区三区忘忧草| 欧美中文字幕亚洲一区二区va在线 | 亚洲欧美国产高清| 国产福利一区二区| 欧美一区二区在线播放| 亚洲精品视频在线观看网站| 国产麻豆视频一区二区| 欧美久久久久久久久| 亚洲免费在线观看视频| 国产精品一区二区久久不卡| 91麻豆精品国产91久久久资源速度| 亚洲天堂免费看| 国产**成人网毛片九色|