Of the six－billion－plus people in the world，600 million live on islands．In other words，one in ten of the world’s population is an island dweller．This is not so hard to imagine when you consider that more than 200 million people live in Indonesia alone―and about 60 million more live on the island of Britain．

No island，or group of islands，is the same．Indonesia，for example，is a nation which consists entirely of islands，nearly 14，000 of them，of which 6，000 are inhabited．Britain is a small， crowded island，with a population density of 243 people per square kilometer，almost twice as much as China．Britain is also the only island in the world which is connected to a continent by a tunnel，the Channel Tunnel between southeast England and North France．

If you ignore Australia，which is an island－continent，the largest island in the world is Greenland，an unusual name for a place which is almost permanently covered in ice! On the other hand，Iceland，which is Greenland’s relatively near neighbor to the east，is much greener．

Why is this？Iceland is far enough north，like Greenland，to be entirely covered by ice，but more than one third of Iceland is volcanically active．Magma，which is molten volcanic rock below the surface of the ground，heats the terrain above it，keeping it green．The story goes that an early settler from Iceland gave Greenland its name in order to encourage more people to live there！

Even the smallest islands have a story to tell．The remotest inhabited island in the world is Tristan da Cunha，which is in the South Atlantic Ocean．Fewer than 250 people live there and they are all related to each other，with only seven surnames between them．The island capital has the romantic name of Edinburgh of the South Seas．

56．According to the text，islands contain      ．

A．one in ten of the world’s population

B．more than six billion people

C．a(chǎn) total of 200，000，000 people

D．much less than 10 percent of the world’s population

57．What does the text tell us by the expression“population density”in the second paragraph？

A．Britain is half as crowded as China．

B．China’s population is around 485 people per square kilometer in the country as a whole．

C．The population per square kilometer is much greater in Britain than in China because of the size of the IK．

D．Britain is twice as populated as China．

58．Where is Edinburgh of the South Seas？

A．On the smallest island in the South Atlantic Ocean．

B．On a romantic，uninhabited island．

C．On a distant，small island inhabited by few people．

D．On a Scottish island in the South Seas．

59．What is the topic of the text？

A．Indonesia Islands                                        B．Islands in the South Pacific．

C．Islands around the world．                          D．Ialand dwellers．

About six years ago，I was eating lunch in a restaurant in New York City    36    a woman and a young boy sat down at the next table．I couldn’t  help overhearing parts of their conversation．At one point the woman asked：“So，    37    have you been？”And the boy，who    38    more than seven or eight years old， 39   ，”To tell you the truth，I’ve been feeling a little depressed（ 憂郁）lately．”

His words   40  in my mind because it confirmed my growing belief that children are changing．   41   I can remember，my friends and I didn’t  find out we were“depressed”    42 we were in high school．

The evidence of   43   in children has increased steadily in recent years．Children don’t  seem 44    any more．Children speak，dress，and behave more like adults than they used to．

   45   this is good or bad is difficult to say，but it certainly is different．Childhood   46   it once was no longer exists．Why？

Human development is based not only on born biological states，but    47    patterns of access to social knowledge． Movement from one social role from another usually involves learning the secrets of the new status．Children have always been taught adults’    48    ，but slowly and in stages: traditionally，we tell the sixth graders things we keep   49    the fifth graders．

In the last thirty years，  50   ，a secret - disclosing machine called television   51   installed in 98 percent of American families．It passes information， and indiscriminately（不加區(qū)別地），to all viewers alike，without considering they are children or adults．Unable to resist the temptation，many children    52    their attention from printed texts to the less challenging，more vivid moving pictures．

Communication through print，as a matter of fact，    53    a great deal of control over the social information   54     children have access．Reading and writing involve a complex code of symbols that must be memorized and practiced．Children must read    55    books before reading complex materials．

I am used to traveling by air and only on one occasion      frightened．

A．I have ever felt              B．I had ever felt         C．did I feel          D．had I ever felt

In       Sahara Desert，      rain is scarce，but in my hometown，there is      heavy rain now and then，and the river around the town rises a lot after heavy rains．

A．the；the；a；  B．the；／；a；                 C．／；／；／；D．the；the；a；

―Jasmine won’t  agree with you on that，you know．

―        ？I don’t  care what she thinks．

A．So what                  B．How come                     C．what for          D．How so

Silver is the best conductor of electricity，copper      it closely．

A．followed                 B．to follow                        C．following         D．being followed

Most children in that country are educated at the public       while in this countrythings are quite opposite．

A．expense                  B．pay                         C．money                    D．cost

He is seldom，if      ，late for class．

A．never               B．frequently              C．so             D．ever

Jack      an excuse for his being absent from school yesterday．

A．invented                  B．created                   C．discovered              D．made

It is around 100 years，as is known to all，      the first modern Olympic Games were held．

A．that                        B．when               C．a(chǎn)fter                       D．since