老托福听力92篇原文.docx

1、老托福听力92篇原文I-01-1(man) Community service is an important component of education here at our university. We encourage all students to volunteer for at least one community activity before they graduate. A new community program called One On One helps elementary students whove fallen behind .You educati

2、on majors might be especially interested in because it offers the opportunity to do some teaching -that is, tutoring in math and English.Youd have to volunteer two hours a week for one semester. You can choose to help a child with math, English, or both. Half-hour lessons are fine, so you could do a

3、 half hour of each subject two days a week.Professor Dodge will act as a mentor to the tutors-hell be available to help you with lesson plans or to offer suggestions for activities. He has office hours every Tuesday and Thursday afternoon. You can sign up for the program with him and begin the tutor

4、ing next week.Im sure youll enjoy this community service. and youll gain valuable experience at the same time. It looks good on your resume, too-showing that youve had experience with children and that you care about your community. If youd like to sign up, or if you have any questions, stop by Prof

5、ession Dodges office this week.I-01-2(woman) I hope youve all finished reading the assigned chapter on insurance-so that youre prepared for our discussion today. But, before we start, Id like to mention a few things your text doesnt go into.Its interesting to note that insurance has existed in some

6、form for a very long time. The earliest insurance policies were called bottomry contracts. They provided shipping protection for merchants as far back as 3000 B.C.In general, the contracts were often no more than verbal agreements. They granted loans to merchants with the understanding than if a par

7、ticular shipment of goods was lost at sea, the loan didnt have to be repaid. Interest on the loans varied according to how risky it was to transport the goods. During periods of heavy piracy at sea, for example, the amount of interest and the cost of the policy went up considerably.So, you can see h

8、ow insurance helped encourage international trade. Even the most cautious merchants became willing to risk shipping their goods over long distances-not to mention in hazardous weather conditions-when they had this kind of protection available. Generally speaking, the basic form of an insurance polic

9、y has been pretty much the same since the Middle Ages. There are four points that were salient then and remain paramount in all policies today. There were outlined in chapter six and will serve as the basis for the rest of the of todays discussion. Can anyone tell me what one of those points might b

10、e?I-01-3(man) Located at the NASA Research Center in Iowa is a 5,000-gallon vat of water, and inside the tank is an underwater treadmill designed by Dava Newman, an aerospace engineer. For four years Newman observed scuba divers as they simulated walking on the Moon and on Mars on her underwater mov

11、ing belt. She wanted to discover how the gravity of the Moon and of Mars would affect human movement.To do this, Newman attached weights to the divers and then lowered them into the tank and onto the treadmill. These weights were carefully adjusted so that the divers could experience underwater the

12、gravity of the Moon and of Mars as they walked on the treadmill. Newman concluded that walking on Mars will probably be easier than walking on the Moon. The Moon has less gravity than Mars does, so at lunar gravity, the divers struggled to keep their balance and walked awkwardly. But at Martian grav

13、ity, the divers had greater traction and stability and could easily adjust to a pace of 1.5 miles per hour. As Newman gradually increased the speed of the treadmill, the divers took longer, graceful strides until they comfortably settled into an even quicker pace. Newman also noted that at Martian g

14、ravity, the divers needed less oxygen.The data Newman collected will help in the future design of Martian space suits. Compared to lunar space suits, Martian space suits will require smaller air tanks; and, to allow for freer movement, the elbow and knee areas of the space suits will also be altered

15、.I-02-1(man) Welcome to Everglades National Par. The Everglades is a watery plain covered with saw grass thats home to numerous species of plants and wildlife. At one and a half million acres, its too big to see it all today, but this tour will offer you a good sampling. Our tour bus will stop first

16、 at Taylor Slough. This is a good place to start because its home to many of the plants and animals typically associated with the Everglades. Youll see many exotic birds and, of course, our world famous alligators. Dont worry, theres a boardwalk that goes across the marsh so you can look down at the

17、 animals in the water from a safe distance. The boardwalk is high enough to give you a great view of the saw grass prairie. From there well head to some other marshy and even jungle - like areas that feature wonderful tropical plant life.For those of you whod like a closer view of the saw grass prai

18、rie, you might consider renting a canoe sometime during your visit here. However, dont do this unless you have a very good sense of direction and can negotiate your way through tall grass. Wed hate to have to come looking for you.You have the good fortune of being here in the winter-the best time of

19、 year to visit. During the spring and summer the mosquitoes will just about eat you alive! Right now theyre not so bothersome, but youll still want to use an insect repellent.I-02-2(woman) Thank you. Its great to see so many of you interested in this series on Survival in Outer Space. Please excuse

20、the cameras - were being videotaped for the local TV stations.Tonight Im going to talk about the most basic aspect of survival - the space suit. When most of you imagine an astronaut, thats probably the fist thing that comes to mind, right? Well, without spaces suits, it would not be possible for us

21、 to survive in space. For example, outer space is a vacuum - theres no gravity or air pressure; without protection, a body would explode. Whats more, wed cook in the sun or freeze in the shade - with temperatures ranging from a toasty 300 degrees above to a cool 300 degrees below zero Fahrenheit.The

22、 space suit that NASA has developed is truly a marvel. This photo enlargement here is a life-size image of an actual space suit worn by astronauts on the last space shuttle mission. This past is the torso - its made of seven extremely durable layers. This thick insulation protects against temperatur

23、e extremes and radiation. Next is what they call a bladder of oxygen - thats an inflatable sac, filled with oxygen, to simulate atmospheric pressure. This bladder presses against the body with the same force as the Earths atmosphere at sea level. The innermost layers provide liquid cooling and venti

24、lation. Despite all the layers, the suit is flexible, allowing free movement so we can work.Another really sophisticated part of the space suit is the helmet. I brought one along to show you. Can I have a volunteer come and demonstrate?I-02-3(woman) Good evening. My name is Pam Jones, and on behalf

25、of the Modern Dance club, Id like to welcome you to tonights program. The club is pleased to present the TV version of The Catherine Wheel, Twyla Tharps rock ballet. This video version of the ballet has been even more successful with audiences than the original theater production - it includes some

26、animation, slow motion, and stop-action freezes that really help the audience understand the dance.The title of the piece refers to Saint Catherine, who died on a wheel in 307 A.D. Nowadays, a Catherine wheel is also a kind of firework - it looks something like a pinwheel. Anyway, the dance is certa

27、inly full of fireworks! Youll see how Twyla Tharp explores one familys attempt to confront the violence in modern life. The central symbol of the work is a pineapple. but exactly what it represents has always created a lot of controversy. As you watch, see if you can figure it out.The music for this

28、 piece is full of the rhythmic energy of rock music. It was composed by David Byrne. of the rock band Talking Heads? And the lead dancer in this version was Sara Rudner, who is perfectly suited to Tharps adventurous choreography.Following the video, dance teacher Mary Parker will lead a discussion a

29、bout the symbolism Ms. Tharp used. We hope you can stay for that. So, enjoy tonights video. and thank you for your support.I-03-1(woman) In our lab today, well be testing the hypothesis that babies can count as early as five months of age. The six babies here are all less than six months old. Youll

30、be watching them on closed-circuit TV and measuring their responses.The experiment is based on the well-established observation that babies stare longer if they dont see what they expect to see. First, were going to let two dolls move slowly in front of the babies. The babies will see the two dolls

31、disappear behind a screen. Your job is to record, in seconds, how long the babies stare at the dolls when the screen is removed.In the next stage, two dolls will again move in front of the babies and disappear. But then a third doll will follow. When the screen is removed, the babies will only see t

32、wo dolls. If were right, the babies will now stare longer because they expect three dolls but only see two.It seems remarkable to think that such young children can count. My own research has convinced me that they have this ability from birth. But whether they do or not, perhaps we should raise another question - should we take advantage of this ability by teaching children mathematics at such a young age? They have great untapped potential, but is it good for parents to pressure young children?I-03-2(woman) Before starting our tour of Monticello, I