题目
题型：同步题难度：来源：
Suddenly a huge shark appears off shore and heads for the bathers. Before it can get close to the
swimmers, the shark, for some mysterious reason, starts swimming parallel to the beach. Then it turns
away from the shore and heads out to sea,leaving the swimmers untouched.
Such a scene will soon become common along shark-in-fested (鲨鱼成群的) shores. An electrical
engineer from the University of Pretoria has developed an electrical system that repels (击退 )
sharks by controlling their movements. Confused by this action, the sharks end up turning away from the
beach.
In this unusual shark-repellent method , an insulated (绝缘的)cable is buried on the bottom of the
sea around a beach where people swim. When an electric current is sent through the cable, an electric
field is produced in the water above the cable.
When a shark swims into the electric field, nerve cells just below the shark"s skin will detect the field.
The electricity produces a reflex(反射) action in the shark"s muscles, causing the dangerous animal
with sharp teeth to swim parallel to the cable. Confused by increasing loss of control of its muscles, the
shark suddenly changes its direction and heads seaward, away from the electric field.
In a test of the invisible new shark-repellent system, a cable was placed around a beach in St. Lucia
an island in the tropics. A protective net, which had been installed around the beach a long time ago to
keep sharks away from swimmers, was left in place during the experiment.
When the electric field was left on for more than a year and a half, no sharks were found in the net.
However, when the power was turned off, 89 sharks ended up in the net.
Using the electric-wall method instead of net to protect bathers would avoid the needless death of
many sharks, said biologists. Currentjy, thousands of sharks die each year when they become trapped
in protective nets that surround holiday resorts in Africa and Australia. About 10 to 15 humans are killed
by sharks annually.
B. Because the shark doesn"t want to eat the swimmers.
C. Because of some mysterious reason from the God.
D. Because there is an invisible electric field confusing the shark.
B. a new shark-repellent system
C. the electric field
D. an insulated cable
B. only when an insulated cable is buried on the bottom of the sea around a beach where people swim
C. only when an electric current is sent through the cable
D. only when the sharks are trapped in protective nets
B. This new kind of shark-repellent system will take the place of the protective nets.
C. Thousands of sharks die and about 10 to 15 humans are killed by sharks each year in Africa and
Australia since this new system was put into use.
D. Using the electric-wall method instead of nets to protect bathers would avoid the needless death of
many sharks.
答案
核心考点
试题【 Pretoria, South Africa-Hundreds of swimmers play in the water along a South】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
beauties of nature. They can also bring things close that are far away. Through photos,people can see wild animals , cities in foreign lands , and even the stars in outer space. Photos also tell stories.
Reporting the news through photos is called photojoumalism. At times photojournalists tell their stories
through a single picture. At other times,they use a group of pictures to tell a story. Each picture is like a
chapter in a book,which can do more than record the facts. It can also be a strong force for social change.
Jacob Riis was among the first photojournalists. He took pictures of parts of New York City where the poor lived. Riis believed that poverty (贫穷) caused crime, and he used photos to help him prove his
point. A few years later,the photos of small children working in factories by Lewis Hine shocked the
public. Hine"s pictures helped bring about laws to protect such children.
Hundreds of pictures may have to be taken in order to get one or two really good photos. It takes
science to have the photo come out clearly and art to make a photo that has a good design and expresses
feeling. Photojournalists make an actual record of what they see. A photo, however,can be both a work of art and an actual record. It can record an important event as a beautiful or exciting picture.
As historical and artistic documents (文献), photos can become more important over time. Today
photojoumalists still have their pictures appear in newspapers and magazines. They also publish (发表)
them in books and on the Internet.
B. photos
C. goods
D. events
B. are popular ways of reporting news
C. often shock the public
D. can serve as a force for social change
B. Photos help people improve their life.
C. News photos mean history in a sense.
D. People prefer reading news with pictures.
B. decorating the walls of homes
C. publishing historical papers
D. expressing feeling through pictures
Only after a week"s leave-during which he read novels,listened to music and walked with his wife on a beach-was Rudenstine able to return to work.
In our modern life, we have lost the rhythm between action and rest. Amazingly, within this world there
is a universal but silly saying, "l am so busy. "
We say this to one another as if our tireless efforts were a talent by nature and an ability to successfully deal with stress. The busier we are, the more important we seem to ourselves and , we imaglne , to others. To be unavailable to our friends and family, and to be unable to find time to relax-this has become the
model of a successful life.
Because we do not rest,we lose our way. We miss the guide telling us where to go, the food providing us with strength , the quiet giving us wisdom.
How have we allowed this to happen? I believe it is this: we have forgotten the Sabbath, the day of the week-for followers of some religions-for rest and praying. It is a day when we are not supposed to work, a time when we devote ourselves to enjoying and celebrating what is
beautiful. It is a good time to bless our children and loved ones, give thanks.share meals, walk and sleep. It is a time for us to take a rest, to put our work aside, trusting that there are larger forces at work taking
care of the world.
Rest is a spiritual and biological need; however,in our strong ambition to be successful and care for our many responsibilities ,we may feel terrbly guilty when we take time to rest. The Sabbath gives us
permission to stop work. In fact, "Remember the Sabbath" is more than simply permission to rest; it is a
rule to obey and a principle to follow.
B. a warning of danger
C. a sign of age
D. a spread of disease
B. be more talented than other people
C. be more important than anyone else
D. be busy workingwithout time to rest
B. fail to realize that rest is an essential part of life
C. fail to realize that religions force them to rest
D. think that taking a rest means being lazy
B. The Sabbath gives us permission to rest.
C. It is silly for anyone to say "I am so busy."
D. We should be available to our family and friends.
suddenly stopped trying. He left school at 16 with only two scores for secondary school subjects.One
of the reasons that made it cool for him not to care was the power of his peer(同龄人) group.
The lack of right male(男性的 ) role models in many of their lives-at home and particularly in the
school environment(环境) --means that their peers are the only
people they have to judge themselves against.
They don"t see men succeeding in society so it doesn"t occur to them that chey could make something of themselves. Without male teachers as a role model, the effect of peer actions and street culture (文化)
is all-powerful. Boys want to be part of a club. However, schools can provide the environment for change, and provide the right role models for them. Teachers need to be trained to stop thal but not in front of a
child"s peers. You have to do it one to one, because that is when you see the real child.
It"s pointless sending a child home if he or she has done. wrong. They see it as a welcome day off to
watch television or play computer games. Instead, schools should have special unil where a child who has done wrong goes for the day and gets advice about his problems-somewhere he can work away from his peers and go home after the other children.
B. His parents no longer supported him.
C. lt"s cool for boys of his age not to care about studies.
D. There were too many subjects in his secondary school.
B. A special unit.
C. The student judges.
D. The horne environment.
B. Train leaders of their peer groups.
C. Stop the development of street culture.
D. Give them lessons in a separate area.
B. teaches the boy a lesson
C. sends the boy home as punishment
D. works together with another teacher
1_ Second,your notes are excellent materials to refer to when you are studying for a test. Third ,
note-taking offers variety to your study time and helps you to hold your interest.
You will want to take notes during classroom discussions and while reading a textbook or doing
research for a report. _ 2_ Whenever or however you take notes, keep in mind that note-taking is a
selective process. _ 3__ The following methods may work best for you.
·Read the text quickly to find the main facts and ideas in it.
·Carefully read the text and watch for words that can
show main points and supporting facts.
·Write your notes in your own words.
· 4_
·Note any questions or ideas you may have about what is said or written.
As you take notes, you may want to use your own shorthand (速记). When you do, be sure that
you understand your symbols and that you use them all the time. __5__
B. There are three practical note-taking methods.
C. You must write your notes on separate paper.
D. Otherwise,you may not be able to read your notes later.
E. You will also want to develop your own method for taking notes.
F. That means you must first decide what is important enough to include in your notes.
C. First, the simple act of writing something down makes it easier for you to understand and remember it.
__1__the job you want,and should tell what your abilities are and what you have __2__.It
should be simple,human,personal and brief without __3__out any necessary fact.
In writing a letter of application,bear in mind that the things a possible employer is most
__4__to want to know about are your qualifications,your achievements and your aims.The
opening paragraph is perhaps the most important part.If the first few sentences fail to
__5__the reader"s attention,the rest of the letter may not be __6__at all.Try to key your
opening remarks to the needs or interests of the employer not to your own need or desires.For
example,instead of beginning with "I saw your __7__in today"s paper."you might
say"I have made a careful study of your advertising during the past six months"or "I
have made a survey in my neighbourhood to find out how many housewives __8__your
product and why they like it."
Try to __9__generalities.Be clear about the kind of job for which you are now
__10__.College graduates looking for their first positions often ask "What can I __11__in a
letter?Employers want experience,which,naturally,no __12__has."The answer is that
everything you have ever done is __13__.
It is important to write a good strong closing for your letter.__14__a specific request for an
interview of give the possible employer something definite to do or expect.An excellent
__15__is to enclose(内附)a stamped,selfaddressed envelope with your letter.That makes it
easier for a possible employer to get in touch with you.
( )2. A.found
( )3. A.sending
( )4. A.probable
( )5. A.pay
( )6. A.kept
( )7. A.advertisement
( )8. A.change
( )9. A.avoid
( )10. A.losing
( )11. A.offer
( )12. A.worker
( )13. A.success
( )14. A.Make
( )15. A.result
B. done
B. taking
B. possible
B. win
B. continued
B. report
B. make
B. remember
B. applying
B. supply
B. beginner
B. development
B. Ask
B. decision
C. known
C. leaving
C. likely
C. show
C. written
C. article
C. sell
C. protect
C. preparing
C. mean
C. owner
C. practice
C. State
C. promise
D. heard
D. picking
D. able
D. fix
D. read
D. introduction
D. use
D. gain
D. fitting
D. provide
D. manager
D. experience
D. Get
D. idea
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