In 1841, a book was published which astonished the world. It was called“Incidents of Travel in Central America, Chiapas and Yucatan”. The author John Loud Stephens had just returned from a long, difficult and dangerous journey through the thick rain forest of southern Mexico and Guatemala. He had once been there with Frederick Catherwood, an architect and artist, to search for the remains of a lost civilization known as the Mayas（玛雅）.Very little was known about the Mayas at that time, but Catherwood’s drawing in the book showed incredible cities with temples, pyramids and other buildings as impressive as those of their northern neighbors, the Aztecs. These cities, however, were deserted. The inhabitants（居民）had disappeared almost a thousand years before.

       Since that time, far more has been learned about this remarkable civilization. The Mayas had a highly developed system of government and of agriculture, as well as an incredibly accurate system of measuring time. They were also wonderful engineers capable of moving huge blocks stone long distances and cutting them to accurate shapes and sizes.

       And yet although the Mayas knew about the wheel, they never used it. Neither did they use metals other than copper. What is ever more surprising is that they suddenly abandoned many of their cities and built new ones in the jungle. Some time around AD900, Mayan civilization collapsed. By the year 1200, their last great capital, Chichen Itza, was deserted.

       Who were these strange people and the even stranger gods they worshipped(崇拜)? What brought about their sudden and mysterious collapse? Some writers have tried to prove that the Mayas had contact with visitors from space and even that they themselves came from another planet. Some people believe that their civilization came to an end because the Mayas never developed a proper resistance to local germs and diseases. All we really know is that when the first Europeans appeared off their coast in 1517, this great and mysterious culture was only a memory.

65．Stephen’s book astonished the world because        .

       A．it was the first time people heard about Mayas

       B．the Mayas were excellent builders and farmers

       C．he had experienced so may difficulties to find this lost civilization

       D．it described that the Mayas used to be an advanced civilization

66．One of the most surprising findings about Mayas was that      .

       A．they developed accurate system measuring time

       B．they knew how to build pyramids with stones

       C．they deserted their cities and moved to new ones

       D．they built cities which they never lived in

67．Mayas civilization collapsed probably in       .

       A．a thousand years before 1841                B．around AD 900

       C．any year between 1200 and 1517           D．AD1200

68．What brought about Mayan sudden collapse?

      A．Tropical germs and diseases                   B．European conquest

       C．Mysterious force from outer space         D．No one knows for sure

Most children now chat daily either online or through their mobile phones. They are connecting to a huge number of other children all over the world. Some are shy “in real life” but are confident to communicate with others online; others find support from people of their own age on relationship issues, or problems at home.
Sometimes the online world, just like the real world, can introduce problems, such as bullying or arguments. Going online is great fun, but there are also a few people who use the Internet for offensive(冒犯性的)or illegal aims. Children must be made aware（意识到的） of both the good things and the dangers.
To keep children safe your management must cover the family computer. Just as you decide which TV programs are suitable, you need to do the same for the websites and chat rooms your children visit. Remind your children that online friends are still strangers. Reminding them of the risks will keep them alert(警惕).
Computer studies are part of schoolwork now, so it’s likely that your children may know more than you do. We get left behind when it comes to the latest gadgets（小玩意）and the interactive areas of websites, like chat rooms and message boards, which are especially strange. The language of chat is strange to many parents, too. Chatters love to use abbreviations(缩写)such as: atb-all the best, bbfn-bye bye for now, cul8er-see you later, gr8-great, Idk-I don’t know, imbl-it must be love, kit-keep in touch, paw-parents are watching, lol-laugh out loud, xlnt-excellent!
It seems like another language, and it is!
【小题1】The passage is meant for         .

Most children now chat daily either online or through their mobile phones. They are connecting to a huge number of other children all over the world. Some are shy “in real life” but are confident to communicate with others online; others find support from people of their own age on relationship issues, or problems at home.
Sometimes the online world, just like the real word, can introduce problems, such as bullying or arguments. Going online is great fun, but there are also a few people who use the Internet for offensive（冒犯性的）or illegal aims. Children must be made aware of both the good things and the danger.
To keep children safe your management must cover the family computer. Just as you decide which TV programs are suitable, you need to do the same for the websites and chat rooms your children visit. Remind your children that online friends are still strangers. Reminding them of the risks will keep them alert. (警惕)
Computer studies are part of schoolwork now, so it’s likely that your children may know more than you do. We get left behind when it comes to the latest gadgets (玩意儿) and interactive areas of websites, like chat rooms and message boards, which are especially strange. The language of chat is strange to many parents, too. Chatters love to use abbreviations such as: atb— all the best; bbfn— bye by for now; cul8er —see you later; gr8—great; idk— I don’t know; imbl— it must be love; kit —keep in touch; paw— parents are watching; lol—laugh out loud; xlnt— excellent!
【小题1】The passage is written for __________.

Most children now chat daily either online or through their mobile phones. They are connecting to a huge number of other children all over the world. Some are shy “in real life” but are confident to communicate with others online; others find support from people of their own age on relationship issues, or problems at home.
Sometimes the online world, just like the real world, can introduce problems, such as arguments. Going online is great fun, but there are also a few people who use the Internet for offensive (冒犯性的) or illegal aims. Children must be made aware of both the good things and the dangers.
To keep children safe your management must cover the family computer. Just as you decide which TV pro-grams are suitable, you need to do the same for the websites and chat rooms your children visit. Remind your children that online friends are still strangers. Re-minding them of the risks will keep them alert (警惕).
Computer studies are part of schoolwork now, so it’s likely that your children may know more than you do. We get left behind when it comes to the latest gad-gets and the interactive areas of websites, like chat rooms and message boards, which are especially strange. The language of chat is strange to many parents, too. Chatters love to use abbreviations (缩写) such as: atb — all the best, bbfn —bye bye for now, cul8er — see you later, gr8 — great, Idk — I don’t know, imbl — it must be love, kit — keep in touch, paw — parents are watching, lol — laugh out loud, xlnt — excellent!
【小题1】The passage is meant for ______.

Most children now chat daily either online or through their mobile phones. They are connecting to a huge number of other children all over the world. Some are shy “in real life” but are confident to communicate with others online; others find support from people of their own age on relationship issues, or problems at home.
Sometimes the online world, just like the real world, can introduce problems, such as bullying or arguments. Going online is great fun, but there are also a few people who use the Internet for offensive (冒犯性的) or illegal aims. Children must be made aware of both the good things and the dangers.
To keep children safe your management must cover the family computer. Just as you decide which TV pro-grams are suitable, you need to do the same for the websites and chat rooms your children visit. Remind your children that online friends are still strangers. Re-minding them of the risks will keep them alert (警惕).
Computer studies are part of schoolwork now, so it’s likely that your children may know more than you do. We get left behind when it comes to the latest gad-gets and the interactive areas of websites, like chat rooms and message boards, which are especially strange. The language of chat is strange to many parents, too. Chatters love to use abbreviations (缩写) such as: atb — all the best, bbfn — bye bye for now, cul8er — see you later, gr8 — great, Idk — I don’t know, imbl — it must be love, kit — keep in touch, paw — parents are watching, lol — laugh out loud, xlnt — excellent!
It seems like another language, and it is!
【小题1】The passage is meant for ______.