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　　I arrived in London on a foggy day to go to a very important meeting．The place where the meeting was going to be 　　1　　 was on the other side of the town．All traffic came to 　　2　　 because the drivers were not able to see more than a yard in front of them．The meeting would begin at nine o’clock, so I decided to go there 　　3　　．

　　Minutes later, I was completely 　　4　　．I stood there, saying unpleasant things about the fog, and thinking that I 　　5　　 to phone to the meeting to explain that was not able to arrive there on time．Then I heard a young man’s voice coming out of the fog, “I suppose you are lost．Can help you?”I was very glad to have a man who 　　6　　 take me to the meeting．Afterward I 　　7　　 him where I wanted to go, took him by the arm, and we started．We walked quite fast, turning 　　8　　 and crossing roads in some places．

　　　　9　　 I followed him through the dark street, I wondered why he found his way easily．“I know this part of London quite well, ”he said, “But in such a fog it's impossible to see anything, ”I said．“I am 　　10　　, sir．”He answered．“In the fog it is exactly the same for me as usual．”

閱讀理解

　　In the 13^th century, the famous Indian traveller, Marco Polo, travelled a long way to 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 15^th century．However, people in China began to use paper money in the 7^th century．

　　A Chinese man called Cai Lun invented paper almost 2,000 years 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 into 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 2,800 tons of paper in our city．It takes 17 trees to make one ton of paper．This means that we are cutting nearly 48,000 trees every day．Since it takes more than 10 years for a tree to grow, 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 also use cotton handkerchiefs(手帕)and paper ones．When we go shopping, we can use fewer paper bags．If the shop assistant does give us a paper bag, we can save it and refuse(拒絕)it later．

　　Everyone can help to save paper．If we all think carefully, we can help protect trees．But we should do it now, before it is too late．

根據短文內容，選擇最恰當的答案

　　Travel is fun and exciting, but it's not if you get sick．You may think,“Not me, I won't get sick on my vacation．”But for many people, that is what happens．

　　A vacation is supposed to be a time for relaxing．But very often it is not．“What can I do when I am a tourist?”This is what we should often think about．Usually there are so many places to visit：museums, shops, parks and churches．You may spend most days walking around these places．This can be very tiring．Your feet may hurt．And you may have a terrible headache after a few hours．If this is what you feel, you should take a rest．Don't ask your body to do too much．A tired body means a weak body．And a weak body can make you get sick easily．Just sit down for a few hours in a nice spot．In good weather, look for a quiet park bench．Or you can rest at a café．You can learn a lot by watching people when you have a rest．

　　Sleep is also important．If you want to stay healthy you need enough sleep．You may have trouble sleeping at night when you travel．Your hotel room may be noisy, or the bed may be uncomfortable．If that is true, don't be afraid to change rooms or hotels．You may not get enough sleep for another reason．You may want to stay out late at night．In many cities the night life can be very exciting．Then you should plan to sleep for an hour during the day．That extra hour can make a big difference．

　　Finally, if you want to stay healthy, you must eat well．That means eating the right kinds of foods．Your body needs fresh fruit and vegetables, and some meat, milk or cheese．When you are in a new country you may want to try new foods but you need to be careful about how much you eat．Lots of rich food is not very good for you．