历史２４
2 ?- p1 V: T/ {) W# gListen to a talk in a class on interior design. , r, q" Q- V( b6 ^/ h+ G: i: \
The next style of furniture design I’d like to discuss is S furniture design. The S are our religious groups that flourished in the 19th century United States. At that time, the shakers lived in their own communities, and believed in living simply. This ideal of simplicity extended to their furniture design as you will see. Because the shape of their furniture wasn’t supposed to be unnecessarily decorative, the furniture surface became the only place to create visual pleasure. Shaker furniture use light colored woods like, pine, maple or cherry. It was often painted blue, green or yellow. As this slides show, some of their most interesting pieces were make for the work place. Notice that this sewing table has draws that can be pulled out from either side. This feature enables two people to sew at the same time. Likewise, if you look closely at these slides of counters and work benches, you will notice that these pieces were also designed to be use from more than on side. Thus, several people would be able to work at one time. Nowadays, shakers furniture design’s enjoying
3 m$ I2 s* B6 T0 Q. Ia revival. The simple but stylish furniture made by the shakers is popular among affluent collectors, including some celebrities that Bill C and OW. As you have seen, the plainness of Shaker’s furniture makes it strangely modern in the period. In fact, there are steer minimalist design have influenced several modern furniture designers, some of whom we will discuss next,.
. M- r7 U# K+ T T生物１１
3 z5 R- A* e/ }Listen to a guide talking to a zoology class on bus tour at a zoo.
1 _* |6 }4 p x, NNow we’re entering Kangaroo country. In all there are more than fifty different species of Kangaroo and the advantage of the zoo like ours is that you see them in their natural habitat. Then ones we have all live in the grasslands. On my right you can see one of the biggest types, the red Kangaroo. it travels about 20 miles per hour. It looks like hard work, but hopping actually let’s the Kangaroo conserve more energy than another animals could when running on four legs. In fact, up to a certain point, the faster a Kangaroo goes the more energy it conserves. Rather than taking more hops to increase speed, the Kangaroo makes the length of each jump longer. Let’s stop here for a minute. Take a look over around your right at this group of Kangaroos resting. Can you see that their ears are moving? Hearing may well be the Kangaroos most important sense, their two large ears can move independently, so sometimes one ear is pointing forward and the other towards the rear. Kangaroos’ eyes sight is also excellent. They are wide field vision, and like most grazing animals, they are especial good at detecting movement. Before we move on, I’d like to point out one more thing. If you look closely you can see a Joey, that’s a baby Kangaroo, peering out of its mothers pouch. Before long that Joey will be out of the pouch for good, the mother will push it by the time it’s eight months old.
- F1 z2 m! ]) _地学９
4 ^4 ]0 j0 i6 {* n0 dListen to part of a radio program about science.
6 v& @: Z: s3 O. D9 iScientists are always on the lookout for alternative sources of energy. Today we are going to discuss one that so plentiful. They say it could supply more energy than all of the coal and oil in the world. It found in something called gas hydrate, and believe it or not, it’s a kind of ice. That’s right. But the water in this ice was way down below the earth’s surface when it was frozen, so it’s under a lot of pressure. And trapped inside the crystals of ice are individual molecules of methane, that’s what’s in natural gas. All this makes gas hydrate pretty strange stuff, if you touch a match to a piece of this ice, it will burst into flame. And when geologists bring a chunk get up to the surface to study its normal air pressure and temperature, gas hydrate begins to hiss and bubble, and in less than half an hour, the ice melts and the methane inside escapes into the air. Now as you might guess, this can make gas hydrate kind of hard for miners to handle. And then there is the problem of where it’s located, in frozen arctic regions or in ocean waters off the Atlantic coast, and, up to a mile down, environmentalists warned that mining it could even be disasters. Off shore drill could allow sea water to sit down into the huge icy deposit. And release tons of methane up into the atmosphere. And methane, are listeners may recall, is green house gas, it could really worsen the problem of global warming. So gas hydrate may offer some interesting possibilities. But with all these drawbacks, I’m not going to hold my breath waiting for it to fuel my furnace.
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Listen to a talk by a management professor.
3 }" J4 X& D c) m# T4 ~ v: uToday I’d like to turn our attention to an area of management often overlooked in traditional management courses, small business management. Small businesses have gone from being traditional small town stored selling food or clothing, to sophisticated high-tech enterprises. And in addition to the important product they produce, they created jobs for lots of people because there are so many of them. It is important for management to keep in mind which of the customers’ needs the business serves, because it can’t serve all their needs. Writing a business plan that everyone in the organization understands the follows will help to provide the necessary focus and direction. It’s important to state clearly what the purpose of the business is. In fact, each person within the organization must know what tasks to perform in order to fulfill the purpose. Now if for some reason a business plan doesn’t work, try hard to discover why not, rewrite it, and immediately focus on the new plan. A word of caution, however, never give up a bad plan without replacing it, a business has to have a plan, because it can’t afford to waste its limited resources. And as you know, waste leads to unnecessarily high production costs. Production cost are at the heart of a company’s ability to make a high quality product and sell it at affordable a price& I2 ?8 Q; [3 W. a$ n- s t6 `
历史２５: }$ P6 T* o! g# J4 m" _4 ?
Listen to a talk given in a history class.
( [ z# R, ?6 \8 }6 x# TToday I want to talk about the C golden rush of 1858, which began when gold was discovered in the frontier town of C, in the Canadian province of British Columbia. By 1861, thousands of men had flocked to the region, hoping to strike it rich. Naturally as the town grew, supplies had to be brought in, and it was done with mules. Well, the mules were quite reliable, but there were some drawbacks. For example, a mule carrying a heavy load could only travel fifty miles in a day, meaning that a typical trip in the canal could take it as long as twenty days. So as the demand for supplies continue to grow, a group of merchants and packers decided to try a new approach. Believe it or not, they shipped it in a herd of camels. I know that sounds strange, but camels trains had been used effectively during the California gold rush some 10 years earlier. But the results in the C region weren’t quite the same. In fact, it was a disaster. The camels couldn’t carry the heavier loads the merchants expected them to. Their two toed feat were perfect for desert travel, but they suited for C rugged mountain terrain. To make matters worse, the mules became very agitated whenever they came across a camel. That caused a lot of accident on the treacherous mountain trail. The mule packers went so far as to threaten the camel owners with a lawsuit. But the reason the merchants finally got rid of the camels, is because these animals simply weren’t cut out for the job. ( g( W. k' l1 ^( m+ L
