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Moderate Earthquake Strikes England
A moderate earthquake struck parts of southeast England on 28 April 2007,toppling chim- neys from houses and rousing residents from their beds .Several thousand people were left without power in Kent County. One woman suffered minor head and neck injuries.
“It felt as if the whole house was being slid across like a fun-fair ride,”said the woman.
The British Geological Survey said the 4 .3-magnitude quake struck at 8:19 a.m. and was centered under the English Channel,about 8 .5 miles south of Dover and near the entrance to the Channel Tunnel.
Witnesses said cracks appeared in walls and chimneys collapsed across the county .Residents said the tremor had lasted for about 10 to 15 seconds.
“I was lying in bed and it felt as if someone had just got up from bed next to me.”said Hen-drick van Eck,27,of Canterbury about 60 miles southeast of London.“I then heard the sound of cracking,and it was getting heavier and heavier. It felt as if someone was at the end of my bed hopping up and down.”
There are thousands of moderate quakes on this scale around the world each year,but they are rare in Britain. The April 28 quake was the strongest in Britain since 2002 when a 4.8-magni-tude quake struck the central England city of Birmingham.
The country's strongest earthquake took place in the North Sea in 1931,measuring 6.1 on the Richter scale.British Geological Survey scientist Roger Musson said the quake took place on 28 April in an area that had seen several of the biggest earthquakes ever to strike Britain,including one in 1580 that caused damage in London and was felt in France.Musson predicted that it was only a matter of time before another earthquake struck this part of England.However,people should not be scared too much by this prediction,Musson said,as the modern earthquake warning system of Britain should be able to detect a forthcoming quake and announce it several hours be-fore it takes place .This would allow time for people to evacuate and reduce damage to the mini-mum.
The following statements are true Except______.
A.the quake caused a power failure in Kent Country
B.the tremor lasted for 10～15 seconds
C.people in Canterbury felt strong quake
D.the quake was centered under the Channel Tunnel
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1.If a super-flu strikes,face masks may not protect you.Whether widespread use of masks will help,or harm,during the next worldwide flu outbreak is a question that researchers are studying furiously.No results have come from their mask research yet.However,the government says peoph should consider wearing them in certain situations anyway, just in case.
2.But it's a question the public keeps asking while the government are making preparations for the next flu pandemic.So the Centers for Disease Control and Preventions(CD
C)came up with preliminary guidelines."We don't want people wearing them everywhere,"said the CD
C."The overall recommendation really is to avoid exposure."
3.When that's not possible,the guidelines say to consider wearing a simple surgical mask if you are in one of the three following situations.First,you're healthy and can't avoid going to a crowded place.Second,you're sick and think you may have close contact with the healthy,such a, a family member checking on you.Third,you live with someone who's sick and thus might be in the early stages of infection,but still need to go out.
4.Influenza pandemics can strike when the easy-to-mutate flu virus shifts to a strain that people never have experienced.Scientists cannot predict when the next pandemic will arrive,although concern is rising that the Asian bird flu might trigger one if it starts spreading easily from person to person.
5.During the flu pandemic,you should protect yourself. Avoid crowds,and avoid close contact with the sick unless you must care for someone.Why aren't masks added to this self protection list?Because they can help trap virus-laden droplets flying through the air with a cough or sneeze. Simple surgical masks only filter the larger droplets.Besides,the CDC is afraid masks may create a false sense of security.Perhaps someone who should have stayed home would don an ill fitting mask and hop on the subway instead.
6.Nor does flu only spread through the air. Say someone covers a sneeze with his or her hand, then touches a doorknob or subway pole.If you touch that spot next and then put germy hands on your nose or mouth,you've been exposed.It's harder to rub your nose while wearing a mask and so your face may get pretty sweaty under masks.You reach under to wipe that sweat,and may transfer germs caught on the outside of the mask straight to the nose.These are the problems face masks may create for their users.
7.Whether people should or should not use face masks still remains a question.The general public has to wait patiently for the results of the mask research scientists are still doing.
We can infer from the passage that the US authorities_________.
A.overuse face masks
B.deal with the mask problem seriously
C.rub their faces and noses in the subway
D.protest against the mask guidelines
E.help protect people from being attacked by a flu
F.announce the result of their mask research
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A和B都是某服装外贸公司的高级业务员。A年富力强，豁达开朗，口头禅是“鄙人有家有业，不愁吃不愁穿，只求有朝一日能实现儿时的梦想，独自驱车横穿撒哈拉沙漠，与非洲土著居民围着篝火唱歌跳舞”。B则精力充沛，办事风风火火，喜欢对人指手画脚，发号施令，一直渴望有朝一日能独当一面，到公司在某国的销售分公司担任领导职务。后来，公司在销售部内部公开选拔一名分公司经理，但分公司的条件、待遇都比总公司差。A和B均申请了突尼斯销售分公司经理的职务，但后来B认为自己能在与A的竞争中获胜的概率微乎其微，于是主动撤回了申请，A如愿以偿地到了非洲，一边开拓业务，一边体验风俗民情。
根据弗罗姆的期望理论，B开始强烈要求去突尼斯销售分公司，后来又因为担心竞争不过A而自动退出，这一现象说明了()。
A.效价高，期望高
B.效价低，期望高
C.效价高，期望低
D.效价低，期望低
