If Earth, Venus(金星)and Mars(火星)all started out with water on their surfaces, why don't Venus and Mars still have liquid water on their surfaces?
Earth, Venus and Mars probably all began with similar amounts of water. Mars still has some of its water--but it's frozen underground. Scientists aren't sure how much water Venus had on its surface, and when that water was lost. Theories suggest that Venus once had abundant water--maybe even a large ocean.
But Venus lost its water--due to what's called a“runaway greenhouse effect”. Water vapor is a strong greenhouse gas--in other words, it traps heat. Water vapor may have caused Venus to heat up--which increased evaporation(蒸发)on the planet's surface--which increased warming even further. It eventually got so hot on Venus that all the surface water evaporated.
Today Venus is covered by thick clouds composed of droplets of sulfuric acid(硫磺酸)and carbon dioxide--another strong greenhouse gas. The planet's nearness to the sun and its greenhouse effect keep the planet very hot--about 900 Fahrenheit--or hot enough to melt lead.
When speaking of the possibility of liquid water on other planets, some scientists refer to the“Goldilocks problem”. That is, Venus is too hot, Mars is too cold, and Earth is just right.
(1)Which of the following statements can best describe the main idea of the passage?
[ ]
A.Earth, Venus and Mars probably all began with similar amounts of water.
B.Water vapor is a strong greenhouse gas.
C.It explains why Venus and Mars don't have liquid water on their surfaces.
D.It tells the fact that Venus is too hot, Mars is too cold, and Earth is just right.
(2)Venus lost its water because ________ .
[ ]
A.the water evaporated
B.the water is frozen underground
C.it once had very little water
D.it is covered by thick clouds
(3)From the passage,“greenhouse effect”is ________ .
[ ]
A.the effect of growing plants in a greenhouse
B.caused by the nearness to the sun
C.caused by the loss of water
D.the effect as a result of heat being trapped
(4)The meaning of the underlined word“abundant”in the first paragraph is most similar to ________ .
[ ]
科目:高中英语 来源: 题型:054
完形填空
One summer evening, Tom returned home at five to seven. When he opened the front gate, he immediately saw something___1___. There was a heavy footprint___2___ the earth in one of the flower beds. Tom was___3___going to blame(责怪)the postman___4___he noticed that one of the curtains in the front room___5___was out of the place.
He walked___6___the front door and opened it quietly. He listened carefully for a moment___7___could hear nothing. The front-room was half-open. Tom___8___it thoughtfully, ___9___if he had forgotten to close it that morning. He stepped silently___10___the hall to the door and looked___11___ the room. The shadow(影子)of___12___was clearly reflected on the hall wall___13___ the evening sunlight. He had obviously been standing behind the door___14___Tom's return. Very quickly Tom closed the door and___15___the key. Then he set out to___16___the police.
As was___17___, the thief tried to climb___18___a window to get out. He set about him with his umbrella___19___it like a sword. Three minutes later the police arrived and the thief was caught. Tom was a little angry that he had to have dinner later than usual but on the whole he felt quite___20___himself.
(1)A.interesting |
B.wonderful |
C.pleasant |
D.strange |
(2)A.in |
B.on |
C.above |
D.below |
(3)A.also |
B.hardly |
C.just |
D.simply |
(4)A.until |
B.since |
C.while |
D.when |
(5)A.there |
B.downstairs |
C.which |
D.where |
(6)A.around |
B.up |
C.out |
D.Aaway from |
(7)A.even |
B.though |
C.but |
D.and |
(8)A.noticed |
B.watched |
C.searched |
D.studied |
(9)A.wondering |
B.asking |
C.knowing |
D.feeling |
(10)A.by |
B.across |
C.over |
D.near |
(11)A.inside |
B.outside |
C.beside |
D.behind |
(12)A.the door |
B.the room |
C.a lady |
D.a man |
(13)A)At |
B.with |
C.in |
D.from |
(14)A.during |
B.since |
C.after |
D.before |
(15)A.turned |
B.sent |
C.hid |
D.found |
(16)A.meet |
B.follow |
C.call |
D.visit |
(17)A.wished |
B.hoped |
C.suggested |
D.expected |
(18)A.onto |
B.upon |
C.into |
D.through |
(19)A.considering |
B.using |
C.thrusting |
D.showing |
(20)A.sorry for |
B.proud of |
C.worried |
D.satisfied with |
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科目:高中英语 来源: 题型:054
If you asked high school girls to name their favorite sports, most would probably say basketball or volleyball. I happen to be one of the few girls who would 1 :surfing(冲浪运动). But isn’t that a boy thing? Some people 2 . Most certainly not.
I started surfing about five years ago and 3 in love with the sport on the very first day. Riding that first 4 was the best feeling I had ever experienced.
When I try to 5 surfing with other things, I find it very difficult because, in my
6 there’s nothing like it. It involves(牵涉到)body, 7 , and soul. There’s sand between my toes and cool, salt water all 8 us. The feeling I get when I’m surfing across that 9 , becoming one with the 10 , is like I’m weightless.
The one thing I can 11 from surfing and not any other sport is endless challenge(挑战). You can never be the “best surfer” because the ocean 12 an uncountable variety of waves that nobody can ever master. The variations of surfing styles are wonderful. Some surfers are free and flowing; others are very aggressive(活跃有力的)and 13 . All of these things attract me to surfing and make it 14 from any other sport.
I’ve 15 to tell every girl I know to do something that people don’t think girls can do. It's part of being human to advance to new 16 , so shouldn't it be expected that girls should step up and start 17 the limits of things boys and men used to dominate(主宰)?
There’re women 18 side by side with the President of our country, so why not side by side with the boys 19 the football team or out in the water surfing? Give girls a chance to 20 , and they will.
1. A. tell B. answer
C. give D. realize
2.
A. wonder B.
understand
C. reply
D.
believe
3. A. stayed B. came
C. dropped D. fell
4. A. wave B. storm
C. sail D. boat
5. A. bring B. connect
C. compare D. tie
6. A. work B. study
C. holiday D. life
7. A. mind B. effort
C. health D. time
8. A. along B. above
C. around D. by
9. A. beach B. water
C. board D. lake
10. A. sky B. world
C. earth D. ocean
11. A. take B. get
C. make D. keep
12. A. catches B. includes
C. offers D. collects
13. A. sharp B. great
C. hard D. calm
14. A. known B. right
C. far D. different
15. A. chosen B. tried
C. learned D. promised
16. A. levels B. points
C. steps D. parts
17. A. reaching B. accepting
C. pushing D. setting
18. A. sitting B. walking
C. fighting D. working
19. A. of B. from
C. on D. with
20. A. think B. succeed
C. perform D. feel
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科目:高中英语 来源: 题型:054
There have been many great inventions, which have changed the way we live. The first great invention was 1 that is still very important today—the wheel(轮子). This made it easier to 2 heavy things and to travel long distances.
For hundreds of years after that there were few inventions that have as much 3 as the wheel. Then in the early 1800’s the world started to 4 . There was little unknown land in the world. People did not 5 to explore any more. They began to work so as to
6 life better.
In the second half of the 19th century many great inventions were made. 7 them were the camera, the electric light and the radio. These all became a big 8 of our life today.
The first part of the 20th century saw more great 9 : the helicopter in 1909; movies with sound in 1926; the computer in 1928; and jet planes in 1930. This was also a time 10
a new material was first made. Nylon came 11 in 1935. It changed the 12 of clothes people had been wearing.
The middle part of the 20th century brought new ways to help people get over 13 .
They worked very well. They made people healthier and let them live 14 lives. By the 1960’s most people could 15 to live at least 60.
By this time most people had a very good life. Of course new inventions 16 to be made. But man now had a desire to explore again. The world was 17 to man but the stars were not. Man began looking for ways to go into 18 . Russia made the first step. Then the United States took a step. Since then other countries, 19 China and Japan have made their steps into space.
In 1969 man took his biggest step away from the earth. Americans first walked on the moon. This is certainly just a 20 thought. New inventions will someday allow us to do things we have never dreamed of.
1. A. the one B. that C. one D. it
2. A. carry B. bring C. find D. put
3. A. time B. knowledge
C. situation D. effect
4. A. appear B. mind
C. change D. rise
5. A. have B. want
C. decide D. like
6. A. work B. turn
C.make D. think
7. A.In B. Among
C. Between D. About
8. A. sort B. part
C. step D. use
9. A. results B. jobs
C. things D. inventions
10. A. when B. which
C. if D. as
11. A. out B. in
C. away D. about
12. A. rest B. course
C. kind D. pattern
13. A. rules B. diseases
C. difficulties D. problems
14. A. more important B. longer
C. happier D. better
15. A. hope B. expect
C. start D. ask
16. A. go on B. begin
C. are able D. continue
17. A. useful B. popular
C. common D. known
18. A. space B. sky
C. air D. room
19. A. including B. except
C. but D. like
20. A. moving B. interesting
C. beginning D. surprising
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科目:高中英语 来源:英语教研室 题型:054
I started surfing about five years ago and 3 in love with the sport on the very first day. Riding that first 4 was the best feeling I had ever experienced.
When I try to 5 surfing with other things, I find it very difficult because, in my
6 there’s nothing like it. It involves(牵涉到)body, 7 , and soul. There’s sand between my toes and cool, salt water all 8 us. The feeling I get when I’m surfing across that 9 , becoming one with the 10 , is like I’m weightless.
The one thing I can 11 from surfing and not any other sport is endless challenge(挑战). You can never be the “best surfer” because the ocean 12 an uncountable variety of waves that nobody can ever master. The variations of surfing styles are wonderful. Some surfers are free and flowing; others are very aggressive(活跃有力的)and 13 . All of these things attract me to surfing and make it 14 from any other sport.
I’ve 15 to tell every girl I know to do something that people don’t think girls can do. It's part of being human to advance to new 16 , so shouldn't it be expected that girls should step up and start 17 the limits of things boys and men used to dominate(主宰)?
There’re women 18 side by side with the President of our country, so why not side by side with the boys 19 the football team or out in the water surfing? Give girls a chance to 20 , and they will.
1. A. tell B. answer
C. give D. realize
2.
A. wonder B.
understand
C. reply
D.
believe
3. A. stayed B. came
C. dropped D. fell
4. A. wave B. storm
C. sail D. boat
5. A. bring B. connect
C. compare D. tie
6. A. work B. study
C. holiday D. life
7. A. mind B. effort
C. health D. time
8. A. along B. above
C. around D. by
9. A. beach B. water
C. board D. lake
10. A. sky B. world
C. earth D. ocean
11. A. take B. get
C. make D. keep
12. A. catches B. includes
C. offers D. collects
13. A. sharp B. great
C. hard D. calm
14. A. known B. right
C. far D. different
15. A. chosen B. tried
C. learned D. promised
16. A. levels B. points
C. steps D. parts
17. A. reaching B. accepting
C. pushing D. setting
18. A. sitting B. walking
C. fighting D. working
19. A. of B. from
C. on D. with
20. A. think B. succeed
C. perform D. feel
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科目:高中英语 来源:英语教研室 题型:054
Today things are 2 . The world has become too 3 . We are using up our natural resources too quickly, and at the same time we are 4 our environment with dangerous chemicals. If we 5 to do this, human life on the earth will not survive(幸存).
Everyone 6 today that if too many fishes are taken from the sea, there will soon be none left. Yet with modern fishing 7 , more and more fishes are caught. We know that if too many trees are cut down, 8 will disappear and nothing will grow on the land. Yet, we 9 to use bigger and more powerful machines to 10 more and more trees. We realize that if rivers are polluted with waste products from factories, we will die. 11 , in most countries, waste products are 12 put into rivers or into the sea, and there are 13 laws to stop this.
We know, too, that if the 14 of the world continues to rise at the present rate, in a few years, there will not be enough 15 . What can we do to solve(解决) these problems?
If we eat more vegetables and less 16 , there will be more food available(可得到的) for everyone. Land that is used to grow crops 17 five times more people than land where animals are kept.
Our natural resources will 18 longer if we learn to recycle them.
The world population will not rise so quickly if people use modern methods of birth 19 .
Finally, if we educate people to think about the problems, we shall have a better and cleaner 20 in the future.
1. A. beautiful B. unlimited
C. rare D. valuable
2. A. common B. the same
C. changeable D. different
3. A. crowded B. small
C. dirty D. busy
4. A. protecting B. saving
C. polluting D. fighting
5. A. try B. continue
C. decide D. have
6. A. wonders B. realizes
C. considers D. discovers
7. A. poles B. boats
C. methods D. ideas
8. A. mountains B. the sea
C. trees D. forests
9. A. continue B. have
C. ought D. act
10. A. grow B. plant
C. save D. cut
11. A. Thus B. However
C. Generally speaking D. Therefore
12. A. still B. even
C. also D. certainly
13. A. too many B. a few
C. some D. few
14. A. production B. pollution
C. population D. revolution
15. A. houses B. vegetables
C. food D. lives
16. A. fruit B. meat
C. fish D. grain
17. A. feeds B. increases
C. supplies D. helps
18. A. use B. stay
C. keep D. last
19. A. control B. born
C. plan D. reward
20. A. nature B.sea
C. planet D. forest
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