题目内容
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Summer Sundae Weekender Staged in a green park around Leicester’s De Montfort Hall, one of the best 2,000-seater music venues(集合地) in the country, this is a full weekender in the heart of the city. Young Knives, Guillemots, Elbow and Gomez headlined this year. Sold out this year at 6,000 capacity. Green bit: Encourages fans to offer cup recycling and battery recycling. When: August 10-12 Tickets: summersundae.com |
Sunrise Summer Solstice Celebration Advertising itself as a new dawn in UK festival culture, the SSSC is held on Sundays and attracts around 8,000 to a field in Somerset. You won’t see McDonald’s but you will see horse-drawn carriages. Performance art is designed to give people a sense of reconnection to the land, and music comes from the likes of Arthur Brown and Dreadzone. Green bit: All of it. Going carbon neutral for the next one. When: May 31-June 3, 2007 Tickets: sunrisecelebration.com |
1.The music events in the above ads are similar in that _________.
A.they are mainly intended for young people
B.they will all be held in the country
C.they will raise money for environmental protection
D.they all care about environmental protection
2.In which event is a company employed to do the cleaning?
A.T in the Park.
B.Bestival.
C.Summer Sundae Weekender.
D.Sunrise Summer Solstice Celebration.
3.Which of the following is NOT the name of a music group?
A.Primal Scream. B.The Pet Shop Boys.
C.Bohemian Bivouac. D.Young Knives.
4.Fans taking part in Sunrise Summer Solstice Celebration can ________.
A.eat at McDonald’s
B.camp there for the weekend
C.go there in horse-drawn carriages
D.have a sense of being close to nature
5.A college student who wants to spend a whole weekend enjoying a music event would probably book his ticket on _________.
A.tinthepark.com B.bestival.net
C.summersundae.com D.sunrisecelebration.com
1.D 2.A 3.C 4.D 5.C
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Microwaves may be great at warming up food, but what about warming people?
Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture. And d
espite popular ideas about microwaves, this technique would be safe, according to Charles R. Buffler of the Microwave Research Center in Marlborough, New Hampshire. Low-power microwaves only penetrate (贯穿) the skin (low-power microwave penetration in a ham is about 0.2 inches, for example) and with no negative effects.
To test this idea, Buffler subjected himself to microwaves in a special room using a standard 500-watt, 2459 MHz magnetron (磁控管). He found that a person will start to feel warmth at about 20 milliwatts per square centimeter (mw. /sq.cm.); a satisfactory feeling of warmth occurs between 35 and 50 mw./sq.cm. By comparison, a person standing in noonday summer sun feels the amount of 85 mw./sq.cm. And a frozen meat pie in your microwave oven receives about 1000 mw./sq. cm.
In houses of the future, each room could be provided with its own magnetron, says Buffler. When you stepped into the living room, for example, a motion detector would turn on the magnetron, filling the room with low-power microwaves. In the same way that a microwaves oven heats up a hamburger, but not the plate it’s on, you would feel warmth from the microwaves without changing the temperature of your coffee table. (You could, however, make your favorite easy chair even more comfortable by treating it with a radiation-absorbing chemical.)
While it might be some time before homeowners are comfortable enough with the idea to set up whole body microwave heaters in houses, Buffler says microwaves may attract livestock farmers. Lambs that are born outdoors in winter, for example, are frequently lost to cold. Microwaves could warm the lambs safely and quickly.
【小题1】 Which of the following can tell the main idea of the passage?
A.A new heating system. | B.A new microwave oven. |
C.A popular technique. | D.The magnetron. |
A.20 mw. / sq. cm. | B.40 mw. / sq. cm. |
C.60 mw. / sq. cm. | D.85 mw. / sq. cm. |
A.The magnetron. | B.The motion detector. |
C.The microwave oven. | D.The radiation-absorbing chemical. |
A.Microwave heaters will soon be widely used by homeowners. |
B.Microwave heaters sometimes make people feel uncomfortable. |
C.Microwave heaters will be probably first used by livestock farmers to prot![]() |
D.Microwave heaters cannot be accepted by the public because they are somewhat unsafe. |