The hole in the Earth's ozone layer (臭氧層) has until now protected Antarctica from the worst effects of global warming. But scientists have warned that as the hole closes up in the next few decades, temperatures on the continent could rise by around 3°C on average, with melting ice contributing to a global sea level increase of up to 1.4 meters.
In the past decades the western Antarctic has seen rapid ice loss as the world has warmed, but the other parts of the continent have, paradoxically, been cooling, resulting in a 10% increase in ice in the seas around the region. This is because the hole in the ozone layer has increased cold winds in Antarctica, making much of the continent surface colder than usual.
But now that the gasses that cause the ozone hole have been banned, scientists expect the hole to repair itself within the next 50 to 60 years. By then the cooling effect will have faded out and the Antarctic will face the full impact of global warming. This means an increase in average air temperatures of around 3°C and a reduction in sea ice by around a third.
The biggest threat to the continent comes from warming seas. Robert Johnson, a scientist who monitors Antarctica ice sheets, said, "The ice sheets in Antarctica are hundreds of metres thick. But once warm ocean waters start flowing underneath, the ice will begin thinning and could break up very quickly. "Thinning ice sheets cause ice to break away from the continent and to melt even faster. Escaping ice from western Antarctica has already resulted in a 10% rise in global sea level in recent decades.
Johnson believes that international action to reduce global warming is required immediately or it may be too late. "Everything is connected —Antarctica may be a long way away but it is an important part of the Earth's system," said Johnson. "It contains 90% of the world's ice, 70% of the world's fresh water and that is enough, if it melts completely, to raise sea levels by 63 meters."
Even in a worse-case situation scientists don't expect the ice to entirely disappear, but predict that, because of the melting ice sheets, average sea level rise will be around 1.4 meters higher by the end of the century.
1. The underlined word "paradoxically" (in Paragraph 2) most probably means "__".
A. rapidly B. approximately C. contradictorily D. apparently
2.What is the effect of the hole in the ozone layer on Antarctica?
A. It is causing the ice to melt faster.
B. It is making much of the continent colder.
C. It is making the effects of global warming in the region worse.
D. It is reducing the amount of water in Antarctica.
3.What do scientists think is the biggest danger facing Antarctica?
A. Rising sea levels. B. Warming sea water temperature.
C. Water pollution. D. Growing ice sheets.
4.Which of the following is true according to the passage?
A. Antarctica is currently experiencing the full effects of global warming.
B. The average temperature has increased by3°C in recent decades.
C. Antarctica contains most of the world's fresh water.
D. Ten percent of Antarctica's ice has already been lost.
5. The best title for the passage is ______.
A. Our planet in danger B. Antarctica melting away
C. Action plan to save Antarctica D. Let's save the ozone layer
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科目:高中英語 來源:2010屆福建省龍巖市三校高三上學(xué)期期末聯(lián)考 題型:完型填空
第二節(jié) 完型填空(共20小題;每小題1.5分,滿分30分)
閱讀下面短文,掌握其大意,然后從36—55各題所給的四個(gè)選項(xiàng)A、B、C、D中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑
The Pecan Thief
When I was six years old, I was visiting my grandfather’s
farm in Kansas. Grandpa had sent me into the 36 to gather
pecans for us to enjoy later.
Pecan picking was really 37 work and my little basket
was only half full. I wasn’t about to 38 Grandpa down. Just
then something caught my 39 . A large brown squirrel was
a few feet away. I watched as he picked up a pecan, hurried to a tree and 40 in a large hole in the trunk. A moment later the squirrel 41 out and climbed down to the ground to pick up another nut. Once again, he took the pecan back to his hiding place.
Not so 42 anymore, I thought. I dashed over to the tree and looked into the hole. It was 43 with pecans! Golden pecans were right there for taking. This was my 44 . Handful by handful, I scooped all of those pecans into my basket. Now it was full! I was so 45 of myself. I couldn’t wait to show Grandpa all the pecans. 46 , I ran back and shouted, “Look at all the pecans!” He looked into the basket and said, “Well, well, how did you find so many?” I told him how I’d 47 the squirrel and taken the pecans from his hiding place.
Grandpa congratulated me on how smart I’d been in observing the squirrel and his habits. Then he did something that 48 me. He handed the basket back to me and put his arm gently 49 my shoulders.
“That squirrel worked very hard to gather his winter 50 of food,” he said. “Now that all of his pecans are gone, don’t you think that little squirrel will 51 the cold winter? ”
“I didn’t think about that, ” I said.
“I know,” Grandpa said. “But a good man should never take 52 of someone else’s hard work.”
Suddenly I felt a bit 53 . The image of the starving squirrel wouldn’t 54 my mind. There was only one thing I could do. I carried the basket back to the tree and poured all the nuts into the hole.
I didn’t eat any pecans that night, but I had something much more filling—the 55 of knowing I had done just the right thing.
36.A.rooms B.woods C.holes D.roads
37.A.hard B.dirty C.light D.easy
38.A.let B.settle C.have D.keep
39.A.sweater B.basket C.eye D.hand
40.A.joined B.lived C.discovered D.disappeared
41.A.jumped B.held C.stood D.found
42.A.strange B.secret C.a(chǎn)nxious D.patient
43.A.covered B.filled C.rebuilt D.decorated
44.A.turn B.choice C.chance D.a(chǎn)chievement
45.A.a(chǎn)fraid B.a(chǎn)shamed C.careful D.proud
46.A.Otherwise B.However C.Besides D.Therefore
47.A.driven B.followed C.protected D.caught
48.A.a(chǎn)nnoyed B.satisfied C.surprised D.delighted
49.A.off B.beside C.over D.a(chǎn)round
50.A.supply B.cost C.support D.preparation
51.A.escape B.spend C.survive D.fled
52.A.place B.notice C.a(chǎn)dvantage D.charge
53.A.guilty B.unconfident C.embarrassed D.nervous
54.A.open B.leave C.cross D.occupy
55.A.inspiration B.expectation C.impression D.satisfaction
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科目:高中英語 來源:2012-2013學(xué)年黑龍江哈爾濱第六中學(xué)高二下期中考試英語卷(帶解析) 題型:完型填空
The Pecan Thief
When I was six years old, I was visiting my grandfather's farm in Kansas. Grandpa had sent me into the 36 to gather pecans for us to enjoy later.
Pecan picking was really 37 work and my little basket was only half full. I wasn't about to 38 Grandpa down. Just then something caught my 39 . A large brown squirrel was a few feet away. I watched as he picked up a pecan, hurried to a tree and 40 in a large hole in the trunk. A moment later the squirrel 41 out and climbed down to the ground to pick up another nut. Once again, he took the pecan back to his hiding place.
Not so 42 anymore, I thought. I dashed over to the tree and looked into the hole. It was 43 with pecans! Golden pecans were right there for taking. This was my 44 . Handful by handful, I scooped all of those pecans into my basket. Now it was full! I was so 45 of myself. I couldn't wait to show Grandpa all the pecans. 46 , I ran back and shouted, “Look at all the pecans!” He looked into the basket and said, “Well, well, how did you find so many ? ” I told him how I'd 47 the squirrel and taken the pecans from his hiding place.
Grandpa congratulated me on how smart I'd been in observing the squirrel and his habits. Then he did something that 48 me. He handed the basket back to me and put his arm gently 49 my shoulders.
“That squirrel worked very hard to gather his winter 50 of food, ” he said. “Now that all of his pecans are gone, don't you think that little squirrel will 51 the cold winter? ”
“I didn't think about that,” I said.
“I know, ” Grandpa said. “But a good man should never take 52 of someone else's hard work.”
Suddenly I felt a bit 53 . The image of the starving squirrel wouldn't 54 my mind. There was only one thing I could do. I carried the basket back to the tree and poured all the nuts into the hole.
I didn't eat any pecans that night, but I had something much more filling—the 55 of knowing I had done just the right thing.
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查看答案和解析>>
科目:高中英語 來源:2014屆黑龍江哈爾濱第六中學(xué)高二下期中考試英語卷(解析版) 題型:完型填空
The Pecan Thief
When I was six years old, I was visiting my grandfather's farm in Kansas. Grandpa had sent me into the 36 to gather pecans for us to enjoy later.
Pecan picking was really 37 work and my little basket was only half full. I wasn't about to 38 Grandpa down. Just then something caught my 39 . A large brown squirrel was a few feet away. I watched as he picked up a pecan, hurried to a tree and 40 in a large hole in the trunk. A moment later the squirrel 41 out and climbed down to the ground to pick up another nut. Once again, he took the pecan back to his hiding place.
Not so 42 anymore, I thought. I dashed over to the tree and looked into the hole. It was 43 with pecans! Golden pecans were right there for taking. This was my 44 . Handful by handful, I scooped all of those pecans into my basket. Now it was full! I was so 45 of myself. I couldn't wait to show Grandpa all the pecans. 46 , I ran back and shouted, “Look at all the pecans!” He looked into the basket and said, “Well, well, how did you find so many ? ” I told him how I'd 47 the squirrel and taken the pecans from his hiding place.
Grandpa congratulated me on how smart I'd been in observing the squirrel and his habits. Then he did something that 48 me. He handed the basket back to me and put his arm gently 49 my shoulders.
“That squirrel worked very hard to gather his winter 50 of food, ” he said. “Now that all of his pecans are gone, don't you think that little squirrel will 51 the cold winter? ”
“I didn't think about that,” I said.
“I know, ” Grandpa said. “But a good man should never take 52 of someone else's hard work.”
Suddenly I felt a bit 53 . The image of the starving squirrel wouldn't 54 my mind. There was only one thing I could do. I carried the basket back to the tree and poured all the nuts into the hole.
I didn't eat any pecans that night, but I had something much more filling—the 55 of knowing I had done just the right thing.
1. A.woods B.rooms C.holes D.roads
2. A.dirty B.hard C.light D.easy
3. A.settle B.let C.have D.keep
4. A.sweater B.basket C.hand D.eye
5. A.joined B.lived C.disappeared D.discovered
6. A.held B.jumped C.stood D.found
7. A.secret B.strange C.a(chǎn)nxious D.patient
8. A.filled B.covered C.rebuilt D.decorated
9. A.time B.choice C.a(chǎn)chievement D.chance
10. A.a(chǎn)fraid B.a(chǎn)shamed C.proud D.careful
11. A.Otherwise B.However C.Therefore D.Besides
12. A.followed B.driven C.protected D.caught
13. A.a(chǎn)nnoyed B.satisfied C.delighted D.surprised
14. A.off B.beside C.a(chǎn)round D.over
15. A.cost B.supply C.support D.preparation
16. A.escape B.spend C.flee D.survive
17. A.place B.notice C.charge D.a(chǎn)dvantage
18. A.unconfident B.guilty C.embarrassed D.nervous
19. A.leave B.open C.cross D.occupy
20. A.inspiration B.expectation C.satisfaction D.impression
查看答案和解析>>
科目:高中英語 來源:2010屆福建省高三上學(xué)期期末考試 題型:完形填空
第二節(jié) 完型填空(共20小題;每小題1.5分,滿分30分)
閱讀下面短文,掌握其大意,然后從36—55各題所給的四個(gè)選項(xiàng)A、B、C、D中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
When I was six years old, I was visiting my grandfather’s
farm in Kansas. Grandpa had sent me into the 36 to gather
pecans for us to enjoy later.
Pecan picking was really 37 work and my little basket
was only half full. I wasn’t about to 38 Grandpa down. Just
then something caught my 39 . A large brown squirrel was
a few feet away. I watched as he picked up a pecan, hurried to a tree and 40 in a large hole in the trunk. A moment later the squirrel 41 out and climbed down to the ground to pick up another nut. Once again, he took the pecan back to his hiding place.
Not so 42 anymore, I thought. I dashed over to the tree and looked into the hole. It was 43 with pecans! Golden pecans were right there for taking. This was my 44 . Handful by handful, I scooped all of those pecans into my basket. Now it was full! I was so 45 of myself. I couldn’t wait to show Grandpa all the pecans. 46 , I ran back and shouted, “Look at all the pecans!” He looked into the basket and said, “Well, well, how did you find so many?” I told him how I’d 47 the squirrel and taken the pecans from his hiding place.
Grandpa congratulated me on how smart I’d been in observing the squirrel and his habits. Then he did something that 48 me. He handed the basket back to me and put his arm gently 49 my shoulders.
“That squirrel worked very hard to gather his winter 50 of food,” he said. “Now that all of his pecans are gone, don’t you think that little squirrel will 51 the cold winter? ”
“I didn’t think about that, ” I said.
“I know,” Grandpa said. “But a good man should never take 52 of someone else’s hard work.”
Suddenly I felt a bit 53 . The image of the starving squirrel wouldn’t 54 my mind. There was only one thing I could do. I carried the basket back to the tree and poured all the nuts into the hole.
I didn’t eat any pecans that night, but I had something much more filling—the 55 of knowing I had done just the right thing.
36.A.rooms B.woods C.holes D.roads
37.A.hard B.dirty C.light D.easy
38.A.let B.settle C.have D.keep
39.A.sweater B.basket C.eye D.hand
40.A.joined B.lived C.discovered D.disappeared
41.A.jumped B.held C.stood D.found
42.A.strange B.secret C.a(chǎn)nxious D.patient
43.A.covered B.filled C.rebuilt D.decorated
44.A.turn B.choice C.chance D.Achievement
45.A.a(chǎn)fraid B.a(chǎn)shamed C.careful D.proud
46.A.Otherwise B.However C.Besides D.Therefore
47.A.driven B.followed C.protected D.caught
48.A.a(chǎn)nnoyed B.satisfied C.surprised D.delighted
49.A.off B.beside C.over D.a(chǎn)round
50.A.supply B.cost C.support D.preparation
51.A.escape B.spend C.survive D.fled
52.A.place B.notice C.a(chǎn)dvantage D.charge
53.A.guilty B.unconfident C.embarrassed D.nervous
54.A.open B.leave C.cross D.occupy
55.A.inspiration B.expectation C.impression D.satisfaction
查看答案和解析>>
科目:高中英語 來源:20102011學(xué)年西藏拉薩中學(xué)高一下學(xué)期第三學(xué)段考試英語試題(漢文班) 題型:閱讀理解
It was on a warm day last summer. I was walking by the sea. The waves came and went. But I didn’t see them. I was lost in my thoughts.
A row of small holes soon caught my eyes. They lay in the sandy earth by the side of a road. In a minute I would have stepped on them.
What are these holes? I wondered. It had an answer soon. A fat, hairy insect crawled up from the earth. It had a wide tail. It was using the tail to dig in the ground.
The insect moved round and round in one spot(地點(diǎn)). Soon it had made another hole. When it was finished, the insect hid at the bottom. It covered its head with sand.
By now my thoughts of the early morning had gone. This new hole and the insect were all my world. So I sat quite still by the side of the road. And I waited.
As I watched, a small ant crossed the road. It passed my foot, and then it crossed the sandy earth. In a little while it reached the edge of the hole. I saw it start to fall in. The ant tried to turn back. But it couldn’t.
And then I knew. I knew why the holes were there. For just then the fat insect came up out of the hole. It ate the ant who was trapped there.
Later I learned the insect’s name. It’s called ant lion. It digs holes to catch ants.
I’ll never forget that day. The holes looked so small to me. But to the ant and the ant lion they were the whole world.
I took my walks by the sea that summer. But I never again learned as much as I did on the one.
1. What did the ant lion use to dig holes?
A. Its tail B. Its feet. C. Its head D. Its whole body
2. Why did the ant lion hide in the hole?
A. To keep the sun away B. So no one would catch it.
C. So the ant wouldn’t see it D. To keep warm.
3. Why did “I” sit down by the side of the road?
A. To think B. To eat her lunch
C. To watch the little holes D. To catch ants.
4.Why did the ant lion dig the holes?
A. To play a game B. To catch its food
C. To hide its eggs D. To hide from its enemy
5.Why did “I” never forget that day?
A. Learned something B. Had a nice time
C. Saw the ant lion whenever she took a walk
D. Felt sorry for the ant.
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