The hole in the Earth’s ozone layer(臭氧层) has until now protected Antarctic 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℃ 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 Antarctic, making much of the continent surface colder than usual.
But now that the gases 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℃ 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 Antarctic ice sheets, said, “The ice sheets in Antarctic are hundreds of meters 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 Antarctic 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——Antarctic 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. generally C. contradictorily D. apparently
2.
What is the effect of the hole in the ozone layer on Antarctic?
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 Antarctic.
3.
What do scientists think is the biggest danger facing Antarctic?
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. Antarctic is currently experiencing the full effects of global warming.
B. The average temperature has increased by 3℃ in recent decades.
C. Antarctic contains most of the world’s fresh water.
D. Ten percent of Antarctic’s ice has already been lost.
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1.
．Which hotel gives a promise?
A．Baymont Inn Ft . Lauderdale． B．Beach Plaza Hotel．
C．Baymont Inn Hotel． D．Fort Lauderdale Plaza Hotel．
2.
In which hotel parking is the cheapest?
A．Baymont Inn Ft . Lauderdale． B．Beach Plaza Hotel．
C．Baymont Inn Hotel． D．Fort Lauderdale Plaza Hotel．
3.
．If you ______ , you will probably go to Beach Plaza Hotel．
A．enjoy seeing films without leaving your hotel room
B．are fond of swimming in heated water
C．want to eat food cooked by yourself in the hotel
D．are a cigarette smoker
4.
Which of the following is NOT true to the ads?
A．All of the three hotels provide television with cable．
B．You can keep your money in the room safe in Fort Lauderdale Plaza Hotel．
C．In Beach Plaza Hotel a 24-hour maid is available．
D．While staying in Fort Lauderdale Plaza Hotel, you can surf the Internet．
Feel tired lately? Has a doctor said he can’t find anything wrong with you? Perhaps he has sent you to a hospital, but all the advanced equipment there shows that there is nothing wrong with you.
Then, consider this: you might be in a state of sub-health（亚健康）. Sub-health, also called the third state or gray state, is explained as a borderline（界限）state between health and disease.
According to the survey by the National Health Organization, over 45 percent of sub-healthy people are middle-aged or elderly. The percentage is even higher among people who work in management positions as well as students around exam-week.
Symptoms include a lack of energy, depression, slow reactions, insomnia, anger, and poor memory. Other symptoms include shortness of breath, sweating and aching in the waist and legs.
The key to preventing and recovering from sub-health, according to some medical experts, is to form good living habits, alternate work and rest, exercise regularly, and take part in open air activities.
As for meals, people are advised to eat less salt and sugar. They should also eat more fresh vegetables, fruits, fish because they are rich in nutritional elements -- vitamins and other elements that are important to the body.
Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract（消化道）. They also say that a balanced diet is very helpful in avoiding sub-health.
1.
According to this passage, which of the following is true?
A. When you are in a state of sub-health, you should stay at home and keep silent.
B. When you are in a state of sub-health, you should go to see a doctor and buy some medicine.
C. When you are in a state of sub-health, you should have yourself examined in foreign countries.
D. When you are in a state of sub-health, you should find out the reasons and relax yourself.
2.
It may be easy for middle-aged people to get sub-healthy because _________.
A. they have used up their energy B. they have lost their living hopes
C. they have more pressure in life and work D. they begin to get older
3.
The key to preventing you from falling into a state of sub-health is that you should ________.
A. work hard B. sleep more
C. form good living habits D. take more medicine
4.
The underlined word “alternate” in this passage is closest in meaning to _________.
A. arrange by turns B. cause to take place
C. keep oneself busy with D. get tired of
Chuck was one of my students in my high school English class. He was a writer of great 36. So, when he was accepted into the journalism program at the University of Missouri, I wasn’t37
During his first year at college, Chuck would stop by the school a few times to keep me informed of his 38. We recalled that we had worked together several years before to 39 money for some sick African babies who were being cared for by a nurse friend of mine in Thailand, a place far away yet close to our 40. Chuck raised several thousand dollars. It was an activity that 41 our common relationship into a friendship.
In his second year at college, it was discovered that Chuck had lung cancer and had only a short while to 42. I went to see him one day. Seeing me, he was filled with 43 and we talked and laughed for most of the afternoon.
About six weeks later, Chuck died. It was a great 44 for everyone, especially for his family. Chuck was 45 and full of promise. More 46, he was a good person, a just person.
When I went to his funeral, his father told me that several weeks before, Chuck had asked him to 47 his possessions with him so that he might select a few things to be buried together with him . Chuck 48 six items, including an essay he had written.*
He told me that Chuck liked the 49 I had written to him at the bottom of the last page. In that little note, I affirmed(证实) his talent as a 50.
I was grateful for the 51 gift Chuck gave me that day. His taking my note with him offered me a great opportunity to 52 students’ lives. I felt a sense of purpose that was greater than ever. Whenever I 53 my purpose in teaching, I think of Chuck, and I am reminded of it once again: 54 have the power to affect hearts and 55 for a long time.
1.A. use B. talent C. height D. assistance
2.A. disappointed B. amused C. excited D. surprised
3.A. secret B. school C. progress D. family
4. A. raise B. borrow C. spend D. save
5. A. college B. hearts C. village D. friends
6. A. transformed B. divided C. put D. devoted
7. A. spare B. act C. live D. sleep
8. A. worry B. joy C. pain D. tears
9. A. honor B. comfort C. day D. loss
10. A. fortunate B. serious C. talented D. unsatisfied
11. A. importantly B. seriously C. usually D. sincerely
12. A. go over B. take over C. give away D. threw away
13. A. added B. bought C. examined D. chose
14.A. story B. letter C. joke D. message
15. A. writer B. teacher C. doctor D. comedian
16. A. excellent B. practical C. special D. expensive
17. A. believe B. draw C. know D. influence
18.. A. remember B. forget C. change D. achieve
19. A. Parents B. Teachers C. Students D. Strangers
20.A. health B. appearance C. accents D. minds
He was always _______ for knowledge, and at last became an expert in the field of art. A. fond B. content C. brave D. greedy
______ at the crossing and you will see a tall white building.
A. Turn right B. Turning right C. Turned right D. Being turn right
