18．Do you live in a city？Do you know how cities began？Long long ago，the world had only a few thousand people．These people moved from one place to another．They moved over the land，hunting animals for food．No one knows how or when these people learned about growing food．But when they did，their lives changed．They did not have to move houses any more．They could stay in one place and grow it．People began to live near each other，so the first village grew．Many people came to work in the villages，and these villages became larger and larger．Then people had machines，life in the villages changed again．People built factories．More and more people lived near the factories．So the villages grew into cities．Some of them grew very big．Today，it's strange that some people are moving back to small villages．Can you tell me why？
48．What did the villages grow into after people built factories？ Cities． 49．Why did people move from place to place long long ago？ To hunt animals for food． 50．Why are some people moving back to small villages？ Because the life of villages is free and quite．
9．Everyone worries．But how do you deal with your worries？Whether your worries are big or small，you can take these three steps to deal with your worries： 1．Try to find out what you're worried about Sometimes，you may know what you're worried about．Other times，you might not．Try to find it out first；if you can't，you can ask for help． 2．Think of ways to make it better There is always something you can do to help you feel less worried．Sitting there worrying is no fun and it won't solve your problem． Grades at school are often top worries for kids．If you're worried about grades，ask yourself these questions： ★Why are grades important？What do grades mean to me？ ★How do l get ready for class？Do I go over my notes even when there isn't a test？ ★Do I have a good place to do my homework？ ★Have I tried different ways of studying？ If your worry is about a fight you had with a friend，you might write down all the things you could do：write a note to him or her，invite him or her to a basketball game，say sorry to him or her，etc．Once you have a list of things you could do，you can choose the one that gets your friend back． 3．Ask for help When you're worried，it can help to find someone to talk to．You can ask your parents， friends，or teachers for help．
36．Is it common to worry about our problems？Yes，they do． 37．How many steps are mentioned in the passage to deal with worries？3． 38．According to the passage，what worries kids most？Grades （at school ）．．
6．In the 13th century，the famous Italian traveler，Marco Polo，traveled a long way to China．During his stay in China，he saw many wonderful things．One of the things he discovered was that Chinese used paper money．In western countries，people did not use paper money until the 15th century．However，people in China began to use paper money in the 7th century． A Chinese man called Cai Lun invented paper almost 2，000years ago．He made it from wood．He took the wood from trees and made it into paper．He then put these pieces of paper together and made them a book． Now paper still comes from trees．We use a lot of paper every day．If we keep on wasting so much paper，there will not be any trees left on the earth．If there are no trees，there will be no paper．Every day，people throw away about 2，800tons of paper in our city．It takes 17trees to make one ton of paper．We must start using less paper now．If we don't，we will not have enough time to grow more trees to take the place of those we use for paper．So how can we save paper？We can use both sides of every piece of paper，especially when we are making notes．We can choose drinks in bottles instead of those in paper packets．We can also use cotton handkerchiefs（手帕）and not paper ones．When we go shopping，we can use fewer bags．If the shop assistant does give us a paper bag，we can save it and reuse （再用） it later．
59．What did Marco Polo do when he was in China？C A．He discovered Cai Lun invented paper． B．He learned to make paper． C．He saw many wonderful things． D．He read a lot of books． 60．When did people in western countries first use paper money？B A．In the 17th century． B．In the 15th century． C．In the 13th century． D．In the 7th century． 61．Which of the following is NOT the way of saving paper？D A．To use both sides of every piece of paper． B．To use the paper bags from shops more than once． C．To use cotton handkerchiefs instead of paper ones． D．To plant more trees．
8．If you lose 12times in a row （連續地），will you just give up？Dale Carnegie，a pioneer in public speaking and self-development，kept trying．And he became famous by showing people how to be successful． Carnegie was born into a poor family in the United States．The boy didn't see a train until he was 12years old．In his teens，he had to get up at 3am every day to milk the cows for his family． When Carnegie first entered college，he felt upset because he wore his ragged （破舊的） clothes and ordinary（平凡的） looks．His mother encouraged him，"Why not try to be better in other things instead of just dress and good looks？" Carnegie tried to be more active in college．He joined the debate （辯論） team．But one after another，he lost 12competitions．The young man was very disappointed with himself．He said later that he thought of killing himself after failing so many times．But soon Carnegie was seen practicing public speaking on the riverside．His hard work paid off at last．In 1906，Carnegie won a famous speech contest and became well-known．"Believe that you will succeed，and you will，"he said． In order to share his success，Carnegie opened schools and wrote books．His best-sellers（暢銷書） include How to Win Friends and Influence People and How to Stop Worrying and Start Living．More than 50million copies of his books have been translated in 38languages．They are still helping people on the road to success． 56．What did Carnegie have to do every morning in his teens？ He had to get up at 3 am every day to milk the cows for his family． 57．Why did Carnegie feel upset when he first entered college？（ in no more than 8words ） Because of his ragged clothes and ordinary looks． 58．What did Carnegie do to be more active in college？ He joined the debate team． 59．What did Carnegie open schools and write books for？（ in no more than 4words ） To share his success． 60．What should we do if we fail so many times？ We should keep trying．．
