DNA ( Deoxyribonucleic acid ) is one of the most important discoveries in science. DNA is the plan for the human being , as a blueprint is the plan for building. DNA makes a person look the way he does. A  person's  DNA. comes  from a mixing of his parents' DNA. That's why a child looks like his parents. But, besides controlling things such as height and hair color, DNA can also give people diseases , Scientists are now studying DNA to cure diseases.
In the seventies, scientists developed a process called recombinant (重新組合) or RDNA. Although it sounds difficult to understand, RDNA simply means taking DNA from one animal or plant and putting it into another. By doing so, scientists can create new beings. In so doing, scientists can better understand DNA, especially what parts of DNA do . After they understand DNA, scientists can begin to cure diseases. Often, the new being created will itself be the cure.
Besides curing diseases, RDNA research can also do other things. For example, scientists in Japan have already created “super-trees”. Trees help humans, because they take CO2, which poisons humans, from the air and turns it into oxygen, which lets humans breathe. “Super-trees” do this too, but do if much faster. As things such as cars and factories have already put much CO2 in the area, “super-trees” are badly needed.
Unfortunately, there is serious danger in RDNA research. Scientists want to create animals to cure old diseases, but these new animals may also create new diseases. It will be a serious problem if the animals escape from the science laboratory and into nature. As these animals are not natural, they may let loose many new powerful diseases.
As a result, RDNA research will create many solutions (解決方案), but it will also create many problems.
67. From the passage, we can know that a boy looks like his parents because________
A. he is son of his parents
B. his parents' DNA decides his appearance
C. he has received DNA from his father or his mother
D. scientists have put some of his parents' DNA into him
68. What does the underlined expression “l(fā)et loose” probably mean?
A. let... go free       B. get rid of        C. absorb          D. survive
69. What is the best title for the passage?
A.    The DNA Research in Japan 
B. A New Way of DNA Research in Japan
C. The Causes and Effects of DNA Research
D. The Advantages And Disadvantages of RDNA
70. The following statements are true about RDNA research EXCEPT_____.
A. the research has been stopped because the created animals carry virus
B. “super-trees” might be widely planted around the world
C. scientists have not completely understood DNA
D. RDNA research will benefit human beings a lot
67-70 BADA

67  B見第一段第三句話。
68 A let loose 意為“釋放”let go free 。
69 D 縱觀全文及文章最后一句話。
70  A 此項在文章中沒有提及。
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科目：高中英語 來源：不詳 題型：閱讀理解


McGill Comedy Club
Important meeting today. Discussions on putting on Blazing Saddles. Union room 302, 3-4 pm. New members (both actors and non?actors, living and dead) are welcome.
History Students' Association
Prof. Michael Cross of Dalhousie University will be speaking on “Unskilled Labours on Rivers and Canals in Upper Canada, 1820-1850: The Beginnings of Class Struggle,"at 10 am in Leacock 230.
Design Mirror Sale
All types and sizes of design mirrors priced to please. Sale today in Union room 108.
McGill Teaching Assistants' Association
A general meeting, for all the TAs, will be held at 4 pm in Leacock 116.
Women's Union
Important. General Meeting at 6 pm, Union room 423. Speaker on “Importance of d
eciding basic goals of the Women's Union".Everyone, old, new and those ?intere
sted,? please attend.
Film Society
Last meeting of the term for all members.All managers are required to be present. 6:00 sharp, Union room 434.
Canadian University Students Overseas
CUSO presents “Guess Who's Coming to Breakfast" at 7 pm. Newman Centre, 3484 Peel. Find out about CUSO here and overseas. Everyone welcome.
1.Where can you probably find this text?
A. In a school magazine.          B. In a national paper.
C. In a guide book.              D. In a university daily newspaper. 
2.If you are interested in arts, where would you go for a visit?
A. Leacock 116.                   B. Union room 423.
C. Union room 108.                D. Newman Centre, 3484 Peel. 
3.Which of the following is the name of a play?
A. Blazing Saddles.
B. Guess Who's Coming to Breakfast.
C. Importance of deciding basic goals of the Women's Union.
D. Unskilled Labours on Rivers and Canals in Upper Canada, 1820-1850. 

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科目：高中英語 來源：不詳 題型：閱讀理解

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover，these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns，potentially causing certain natural disasters all over the world.
In the past hundred years，humans have begun destroying rainforests in search of three major resources（資源）：land for crops，wood for paper and other products，land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide（二氧化碳）in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.There are two main reasons for this. Firstly，when people cut down trees，generally they can only use the land for a year or two. Secondly，cutting large sections of rainforests may provide a good supply of wood right now，but in the long run it actually reduces the world’s wood supply.
Rainforests are often called the world’s drug store. More than 25％ of the medicines we use today come from plants in rainforests. However，fewer than l％of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.
小題1:Rainforests can help to adjust the climate because they      
A．reflect more heat into the atmosphere
B．bring about high rainfall throughout the world
C．rarely cause the temperature to drop lower than l6℃
D．reduce the effect of heat from the sun on the earth
小題2:What does the word “this” underlined in the third paragraph refer to?
A．We will lose much more than we can gain.
B．Humans have begun destroying rainforests.
C．People have a strong desire for resources.
D．Much carbon dioxide comes from burning rainforests.
小題3:It can be inferred from the text that
A．we can get enough resources without rainforests
B．there is great medicine potential in rainforests
C．we will grow fewer kinds of crops in the gained land
D．the level of annual rainfall affects wind patterns
小題4:What might be the best title for the text?
A．How to Save Rainforests
B．How to Protect Nature
C．Rainforests and the Environment
D．Rainforests and Medical Development

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科目：高中英語 來源：不詳 題型：閱讀理解

People turn to magic(魔力)chiefly as a form of insurance--that is, they use it along with actions that actually bring results. For example, hunters may use a hunting charm(咒語). But they also use their hunting skills and knowledge of animals. The charm may give hunters the extra confidence they need to hunt even more successfully than they would without it. If they shoot a lot of game(獵物), they credit the charm for their success. Many events happen naturally without magic. Crops grow without it, and sick people get well without it. But if people use magic to bring a good harvest or to cure a patient, they may believe the magic was responsible. 
People also tend to forget magic's failures and to be impressed by its surface successes. They may consider magic successful if it appears to work only 10 per cent of the time. Even when magic fails, people often explain the failure without doubting the power of the magic. They may say that the magician made a mistake in reciting the spell or that another magician cast a more powerful spell against the magician.
Many anthropologists(人類學(xué)家) believe that people have faith in magic because they feel a need to believe in it. People may turn to magic to reduce their fear and uncertainty if they feel they have no control over the outcome of a situation. For example, farmers use knowledge and skill when they plant their fields. But they know that weather, insects, or diseases might ruin the crops. So farmers in some societies may also plant a charm or perform a magic rite to ensure a good harvest.
小題1:From the passage, we can learn that the writer of the passage may be _______.
A．a(chǎn) hunterB．a(chǎn) farmerC．a(chǎn) magicianD．a(chǎn)n anthropologist
小題2:Which of the following can best serve as the title of the passage?
A．Magic and Hunting.B．Magic and Farming.
C．Why Magic Works?D．Why People Believe in Magic?
小題3:The underlined word “spell”(Paragraph 2) most likely means______.
A．magic words.B．magic events.C．words or expressionsD．magicians.

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科目：高中英語 來源：不詳 題型：完形填空

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

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科目：高中英語 來源：不詳 題型：閱讀理解

Some scientists warn that ice near the Earth’s Poles may indeed be melting. This “polar meltdown” may be the first sign that the Earth is heating up. We could be in very serious trouble if this trend continues. It is estimated that a meltdown of as little as 10 percent of Antarctica’s ice would raise sea levels around the globe by 4 to 9 meters. Floods would cover low-lying regions and turn coastal cities like New York and New Orleans into real life underwater world.
Scientists first predicted in the 1970s that heat trapped in the Earth’s atmosphere could cause a polar meltdown. Many now believe that human activities are turning up the heat. When we burn fossil fuels like coal and oil, we add carbon dioxide(CO2) gas to the Earth’s atmosphere. Cutting down trees also makes CO2 levels raise because trees normally soak up CO2 to make food. Scientists say higher CO2 levels strengthen the “greenhouse effect” and could increase the Earth’s temperature. In fact, CO2 levels have risen by 30 percent since the Industrial Revolution of the 18th and 19th centuries.
Over the past three years, satellite measurements have shown a sea level rise of about a quarter inch worldwide. “If nothing is done to reduce fossil-fuel pollution and global warming, sea levels will rise even more.” says geologist Richard Alley.
But even Alley admits that a polar meltdown would take time. The ice in Antarctica and Arctic locks up nearly nine times the volume of water contained in all the world’s rivers and lakes. These are such big “ice cubes” and it would probably take thousands of years to melt them.
Another scientist Charles Bentley doesn’t think a meltdown will happen at all. “Even if warmer temperatures begin to melt polar-ice,” he says, “the excess moisture would most likely be redeposit as snow.” In other words, the melted ice would evaporate into the atmosphere, refreeze, and fall as rain and snow over the Poles.
小題1:What consequence of global warming is mentioned in the passage?
A．More tropical storms.B．More tropical diseases.
C．Changes in farm productivity.D．Coastal flooding.
小題2: Which of the following statements does the second paragraph support?
A．CO2 in the atmosphere cannot keep the heat from escaping into space.
B．The increase of CO2 gas may warm the planet and help to melt polar ice.
C．Cutting down trees helps to greatly reduce CO2 levels.
D．The end of the short-lived age of fossil fuels is already in sight.
小題3: Geologist Richard Alley most likely agrees that _______.
A．the sea-level rise can be prevented by cutting back on energy-consuming activities
B．the recent breaking off of ice blocks from Antarctica is just a natural part of a long-term cycle
C．Antarctica temperatures have significantly changed since the Industrial Revolution
D．the polar meltdown may be an accidental change of climate rather than a sign of global warming
小題4:Charles Bentley believes that a polar meltdown will not occur because _______.
A．governments around the world are beginning to reduce CO2 levels in the air
B．a(chǎn) melting of the polar ice cannot be achieved with the present technologies
C．the melted ice in the polar areas would change into snow and rain over the Poles
D．the sun’s heat would have no chance of being absorbed by the polar ice
小題5:In which paragraph does the author mention the immense quantities of polar ice?
A．In the second paragraph.B．In the third paragraph.
C．In the fourth paragraph.D．In the fifth paragraph.

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科目：高中英語 來源：不詳 題型：閱讀理解

Six Americans are working on a new highway. But this highway won't have any traffic．It's an "ice highway" to the South Pole.
The team has just finished a second year of work on the 1,020-mile highway. "The road is the greatest single footprint of activity we've seen in the Antarctic (南極洲)," said Alan Hemmings, an Australian environmentalist.
The highway will provide a new way for supplies to be trekked (拉, 搬) across the earth on tractor-pulled sleds (雪橇). This method will use a lot less fuel than an aircraft, the current (當(dāng)前的) way that scientists and supplies reach the Amundsen-Scott Base, a U.S. research station in the South Pole. The highway will also allow for equipment that is too big for planes to carry to be brought to Antarctica．Even with these benefits, there is one disadvantage—a round trip on the road will be 30 days, compared to a few hours by plane.
Making this 20-foot-wide road isn't easy, and it takes a lot of time. The crew (工作隊) has been working on the road for two summers, when it's warmer and easier to work with the ice. It probably won't be completed until 2006.
Crevasses (裂縫), or cracks, in the land often make the construction difficult. Crevasses are kind of like pot holes that form when surface ice is stretched．This can be very dangerous, especially when the crevasses are hidden under a layer (層) of snow and can't be seen.
"Last year it took us three months to go three miles across a crevasse field, full of dangerous, hidden crevasses," said the project's manager, John Wright. Each year, more crevasses appear and they have to be filled with snow and ice so the road is safe for travel. The road will also be lined with green flags so travelers know where the safe surface is.
小題1: It will probably take ______ years to complete the ice highway.
A．2B．4 C．6 D．8
小題2:When it is finished, the highway will not be used for ______.
A．giving supplies to the research station in the South Pole
B．taking scientists to the South Pole
C．taking travelers to a tour of Antarctic
D．bringing huge equipment to Antarctic
小題3:How many miles can be covered at most each day if you take the ice highway to the South
Pole?
A．30.B．34.C．68.D．88.
小題4:Which of the following is true according to the passage?
A．Other crevasses won’t appear if a crevasse has been filled.
B．Many new crevasses will form after a crevasse has been filled.
C．Travelers can drive their sleds on the ice highway freely.
D．There will be less danger if the crevasses are covered by snow.

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科目：高中英語 來源：不詳 題型：閱讀理解

It's interesting that the arrival of snow has effect on people in different countries. For some countries it is an important happening to celebrate each year, while for others a catastrophe(災(zāi)害) or even a wonder.?
But there are countries between these two kinds that normally expect snow some time over-the winter months, but never receive snow regularly or in the same quantities every year. Britain is one of them, for which the arrival of snow quite simply causes problems. Within hours of the first snowfalls, however light, roads are blocked; trains and buses have to stop in the middle of the way. Normal communication is affected as well: telephone calls become difficult and the post immediately takes more time than usual. And almost within hours, there are also certain shortages—bread, vegetables and other things—not because all these things can no longer be produced or sent to shops, but mainly because people are frightened and go out and store up with food and so on just for fear that something bad should happen.?
But why does snow have this effect? After all, the Swiss, the Austrians and the Canadians don't have such problems. It is simple because there is not enough planning and preparation. We need money to buy equipment to deal with snow and ice. To keep the roads clear, for example, requires snow-ploughs(掃雪機(jī)) and machines to spread salt. The reason why a country like Britain does not buy snow-ploughs is that they are used for a few days in any one year, and the money could be more useful in other things such as hospital, education, helping the old.?
小題1:According to the writer, Britain is a country _______.?
A．which has regular snowB．which is not well prepared for snow?
C．for which snow is a catastropheD．for which snow is a wonder?
小題2:After a few hours' snowing there are often some shortages of food because _______.?
A．shops have closed downB．people buy as much as they can?
C．farmers cannot produce any moreD．people eat more vegetables in winter?
小題3:The words “two kinds” in the passage mean the countries _______.?
A．which have weather as yearly happening to celebrate or as rare (少見) weather?
B．which either have heavy snow or light snow?
C．to which snow either causes problems or no problems?
D．which either have snow-ploughs or no snow-ploughs

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科目：高中英語 來源：不詳 題型：閱讀理解

An annoying problem for humans, who like to boast (夸耀) about all the distant planets and moons we have explored, is that we've never taken a good look right under our noses. The inside of the earth is relatively close, but how can we get there?
The deepest oil well enters a mere six miles into the crust (地殼) (the center of the earth is about 4,000 miles deeper). Russian scientists dug the deepest hole in Siberia, but bottomed out at about 7.5 miles below the surface. The Mohole project, a U.S. plan in the 1950s, called for drilling a hole 25 miles down to the boundary between the hard rocks of the crust and the soft mantle (地幔). Sadly the project involved government supporting.
It gets harder and harder to drill deep into the earth because rocks get softer and softer. Hard but easily broken at the surface, rocks become plastic at depth, and the pressure caused by the weight of the overlaying crust ---  about 52,800 pounds per square inch at a depth of ten miles, makes further drilling impossible.
What little we know about the inside of the earth (like the fact that there's a crust, a mantle, and a core) comes from indirect evidence, such as the analysis of earthquakes.
So maybe it's time for a thorough new method to explore the earth's inside. Scientist David Stevenson says we should forget about drilling holes. Instead, we should open a crack (裂縫).
Stevenson suggests digging a crack about a half mile long, a yard wide, and a half mile deep (not with a shovel) but with an explosion on the scale of a nuclear bomb. Next, he'd pour a few hundred thousand tons of molten (熔化的) iron into the crack, along with a robot. The iron, thicker than the surrounding crust, would move downward at about 16 feet per second, carrying the robot with it and opening the crack deeper and deeper. The iron mass would drop for about a week and 2,000 miles to the outer edge of the earth core, the robot sending out data to the surface.
Stevenson compares his idea to space exploration. "We're going somewhere we haven't been before,"he says. "In all possibility, there will be surprises.”
This idea can probably be put in the drawer marked with Isn't Going To Happen. The robot would have to survive temperatures that would melt pretty much anything. But Stevenson's idea may inspire a new look at an old problem. Great things can come from what seems like impossible ideas.
小題1:Going inside the earth is _____ than going into space.
A．more interestingB．more possibleC．easierD．more challenging
小題2:How deep have we gone into the earth until now?
A．6 miles.B．4,000 miles.C．7.5 miles.D．25 miles.
小題3:Which of the following is TRUE about David Stevenson's idea?
A．It is an inspiring but not practical idea now.
B．It is a practical proposal that has come into use now.
C．It is a good proposal that will soon be put into practice.
D．It is a false theory that cannot be carried out at all.
小題4: What might be the most suitable title for the text?
A．An Annoying Problem for Humans
B．To the Center of the Earth
C．The Mohole Project
D．David Stevenson's Proposal

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