Damage to Ozone Layer Gets Worse
In the middle of winter, when snow is falling in many parts of the United States, scientists have sounded a warning to people who plan to spend many hours in the sun this summer．The warning: The sun's summertime rays are more dangerous than once thought.
A team of scientists from 80 nations recently reported to the United Nations that a layer of ozone（臭氧层）in the atmosphere, which protects humans from harmful levels of ultraviolet（紫外线）radiation, will be thinner over the United States this summer．The thinner layer allows more ultraviolet rays from the sun to reach Earth．The extra amount of ultraviolet radiation could cause an increase in the number of cases of skin cancer.
Scientists first became concerned about the layer in the mid-1980s when a hole was discovered in the layer above Antarctica during the winter．The hole was caused in chemicals used in refrigerators and air conditioners．When these chemicals are sent out into the atmosphere, they produce gases that destroy the ozone.
Concern about the protective ozone layer rose more recently when data from satellites and ground stations showed that ozone levels were dropping over areas other than Antarctica．Low ozone levels were recorded in the spring and summer over the United States and over other populated areas in the world.
Although many countries have already begun stopping the use of ozone-destroying chemicals, the new findings are expected to advance the timetable for a total ban of the chemicals.
【小题1】The scientists have observed the ozone layer ______．

     Pet owners are being encouraged to take their animals to work, a move scientists say can be good for productivity, workplace morale (士气)，and the well-being of animals.

     A study found that 25% of Australian women would like to keep an office pet. Sue Chaseling of Petcare Information Service said the practice of keeping office pets was good both for the people and the pets. “On the pets’ side, they are not left on their own and won’t feel lonely and unhappy,” she said. A study of major US companies showed that 73% found office pets beneficial (有益的), while 27% experienced a drop in absenteeism (缺勤).

     Xami Riggs has two cats walking around her Global Hair Salon in Paddington. “My customers love them. They are their favorites,” she said. “They are not troublesome. They know when to go and have a sleep0 in the sun.”

     Little black BJ has spent nearly all his two years “working” at Punch Gallery in Balmain. Owner Iain Powell said he had had cats at the gallery for 15 years. “BJ often lies in the shop window and people walking past tap on the glass,” he said.

     Ms Chaseling said cats were popular in service industries because they enabled a point of conversation. But she said owners had to make sure both their co-workers and the cats were comfortable.

．The percentage of American companies that are in favor of keeping office pets is __________.

A．73%  B．27%  C．25%  D．15%

．We know from the text that “BJ”_____.

       A．works in the Global Hair Salon

       B．often greets the passers-by

       C．likes to sleep in the sun      D．is a two-year-old cat

．The best title for this text would be _____.

A．Pets Help Attract Customers    B．Your Favorite Office Pets

       C．Pets Join the Workforce        D．Busy Life for Pets

根据下列句子及所给汉语注释，在答题卡指定的区域的横线上写出空缺处各单词的正确形式。（每空只写一词）
【小题1】Some _____(妇女) scientists are talked about in Unit One, Book Four.
【小题2】The big tree provides _____(树荫) for the villagers in the summer.
【小题3】There is still much to discuss. We shall, ____(因此), return to this item at our next meeting.
【小题4】Don’t play in the sun for too long, or you may get _____(晒伤).
【小题5】She sounded very _____(有说服力的) to me.
【小题6】After the terrible flood, _____(无家可归的)people can be seen here and there in this area.
【小题7】He handed her a cup of coffee to put her at _____(放松).
【小题8】Come _____(近些). I want to tell you something important.
【小题9】Beihai Park is not a _____(主题) park.
【小题10】The two ropes are of the same _____(长度).

The 2012 London Olympics had enough problems to worry about. But one more has just been added - a communications blackout caused by solar storms.
After a period of calm within the Sun, scientists have detected the signs of a flesh cycle of sunspots that could peak in 2012, just in time for the arrival of the Olympic torch in London.
Now scientists believe that this peak could result in vast solar explosions that could throw billions of tons of charged matter towards the Earth, causing strong solar storms that could jam the telecommunications satellites and interact links sending five Olympic broadcast from London.
"The Sun's activity has a strong influence on the Earth. The Olympics could be in the middle of the next solar maximum which could affect the functions of communications satellites," said Professor Richard Harrison, head of space physics at the Rutherford Appleton Laboratory in Oxfordshire. 
At the peak of the cycle, violent outbursts called coronal mass ejections (日冕物质抛射) occur in the Sun's atmosphere, throwing out great quantities of electrically-charged matter. " A coronal mass ejection can carry a billion tons of solar material into space at over a million    kilometres per hour. Such events can expose astronauts to a deadly amount, can disable satellites, cause power failures on Earth and disturb communications," Professor Harrison added. The risk is greatest during a solar maximum when there is the greatest number of sunspots.
Next week in America, NASA is scheduled to launch a satellite for monitoring solar activity called the Solar Dynamics Observatory (SDO), which will take images of the Sun that are 10 times clearer than the most advanced televisions available.
The Rutherford Appleton Laboratory helped to make the high-tech cameras that will capture images of the solar flares (太阳耀斑) and explosions as they occur.
Professor Richard Hold away, the lab's director, said that the SDO should be able to provide early warning of a solar flare or explosion big enough to affect satellite communications on Earth "If we have advance warning, we'll be able to reduce the damage. What you don't want is things switching off for a week with no idea of what's caused the problem," he said.
1. The phrase "communications blackout" in paragraph 1 most probably refers to      during the 2012 Olympics.
A. the extinguishing of the Olympic torch
B. the collapse of broadcasting systems
C. the transportation breakdown in London
D. the destruction of weather satellites
2. What can be inferred about the solar activity described in the passage?
A. The most fatal matter from the corona falls onto Earth.
B. The solar storm peak occurs in the middle of each cycle.
C. It takes several seconds for the charged matter to reach Earth.
D. The number of sunspots declines after coronal mass ejections.
3. According to the passage, NASA will launch a satellite to _________.
A. take images of the solar system         B. provide early warning of thunderstorms
C. keep track of solar activities            D. improve the communications on Earth
4. Which of the following might be the best title of the passage?
A. Solar Storms: An Invisible Killer
B. Solar Storms: Earth Environment in Danger
C. Solar Storms: Threatening the Human Race
D. Solar Storms: Human Activities to Be Troubled

Most of my earliest childhood memories are of the beach — in the hot sun, building sandcastles, burying Dad in the sand.
Now the coast has a pleasant and relaxing attraction beyond words. I look forward to a windy cliff-top walk or a rainy day rock-picking just as much as those rare moments when I get to a short sleep in the sun. But there’s nothing more pleasurable than turning up at a beach to find it deserted.
These are my favourite secret beaches — ones either not well known or take a bit of effort to get to. Most of those listed scored highly in the Marine Conservation Society Good Beach Guide 2009; the others are too secret even for them.
Sennen Clove is just a mile northeast of Land’s End, the westernmost point of mainland England. It’s a beautiful spot, with white sands, deep green sea and amazing sunsets over the Isles (群岛) of Scilly, 28 miles away.
The west-facing beach is popular with surfers, with bigger waves and winds often found at the Gwenver end. There’s a beach restaurant with good views of the bay and the sunsets.
The smallest of Isles of Scilly, Bryher is a mile long, half a mile wide — and a natural wilderness of unbelievable scenery. Walk along the narrow sandy roads to the eastern seaboard and you come to two quiet beaches.
Green Bay has views over to the palm trees of Tresco’s Abbey Gardens, and a little further south is Rushy Bay, a beautiful beach facing the deserted island of Samson.
On Bryher, farm shops sell locally grown produce, and they trust you to leave the money in the pot. It’s that kind of place.
【小题1】The best title for this passage is ________.