1. What time is the woman's watch now?
| A．4：50. | B．5：50. | C．6：30. |
| A．By underground. | B．By taxi. | C．By bus. |
| A．$30. | B．$39. | C．$48. |
3 . When you walk on a sandy beach, it takes more energy than walking down a sidewalk—because the weight of your body pushes into the sand. It turns out that the same thing is true for vehicles driving on roads.
“The weight of the vehicles creates a very shallow indentation in the pavement—and it makes it such that it's continuously driving up a very shallow hill,” said Jeremy Gregory, a scientist at M. I. T...He modeled with his teammates how much energy could be saved-and greenhouse gases avoided—by simply hardening the nation's roads and highways.
And they found that hardening 10 percent of the nation's roads every year could prevent emissions equal to 440 megatons of carbon dioxide over the next 5 decades—that amount is equal to how much CO, you'd spare the planet by keeping a billion barrels of oil in the ground or by growing 7 billion trees for a decade. It reduces 0.5% of projected transportation emissions over that time period.
As for how to harden roads, Gregory says you could combine small amounts of certain fiber with high technology into paving materials. Or you could pave with specially-made concrete, which is harder than ordinary construction materials.
This system could also be a way to shave carbon emissions without some of the usual barriers. “Usually, when it comes to reducing emissions in the transportation department, you're talking about changing policies related to vehicles and also driver behavior, which involves millions and millions of people—as opposed to changing the way we design and preserve our pavements. That's just on the order of thousands of people who are working in transportation agencies.” And when it comes to improving our streets and highways-those agencies are where you might say the rubber meets the road.
1. How does the author develop Paragraph 3?| A．By giving examples. | B．By making classification. |
| C．By listing figures | D．By analyzing causes. |
| A．Mixing fiber with special concrete. | B．Changing regular paving materials. |
| C．Creating hi-tech computer models. | D．Using ordinary building materials. |
| A．It reduces construction costs. | B．It profits transportation agencies. |
| C．It regulates driver behavior. | D．It avoids involving too many people. |
| A．Walking Down Beaches or Sidewalks? | B．Hardening Roads Helps Save Energy. |
| C．How to Cut Down Carbon Emissions | D．A System of Hardening Roads. |
4 . Getting around in Canada is fairly easy. Most cities have urban transportation systems, including buses, streetcars, and trains, and some of the larger cities also have subways.
You can board these systems at regular stops along their routes. Some let you pay with cash while others require tickets. If you don't have a ticket for the bus, you must pay with the correct amount of money. This is because the driver does not carry any change. If you plan to stay in a city for a long time, you may want to buy a monthly pass or a package of tickets to save money. You can buy subway tickets at any subway station.
If you have to take several buses or subways for a single trip, you do not need to pay money each time. Simply ask the driver for a transfer ticket, or take one from the machines on the subways platform.
If you are not sure where to board the bus or the streetcar, just ask someone or follow the crowd People can usually only board at the front of the bus where you show your pass to the driver. When using public transportation, Canadians line up. First come, first serve, is a common approach to many activities in Canada, and it is considered to be extremely rude to cut in any line.
Maps of routes and schedules are usually available from the public transit company in your area, and there is also a telephone information line. You may ask someone for the name of the transit company in your area, and then look it up in the telephone book.
1. What is this passage mainly about?| A．How to use public transportation in Canada. |
| B．How to save money when traveling. |
| C．Where to find subways in larger cities |
| D．How public transit companies work. |
| A．you may be given some change |
| B．you had better have the exact amount of money |
| C．it might cost you a little more |
| D．you can exchange money with the driver |
| A．you have to pay each time |
| B．you should buy another ticket from the machine |
| C．you must ask for the driver's permission |
| D．you just need to pay once |
1. What makes the man give up taking the 10:30 flight?
| A．No ticket available. | B．Improper time. | C．Expensive tickets. |
| A．On Friday night. | B．On Saturday morning. | C．On Saturday noon. |
| A．His colleague. | B．His wife. | C．His boss. |
| A．$120. | B．$300. | C．$240. |
