The surprising experiment I am about to describe proves that air is all aroud you and that it proves down upon you．Air pressure is a wonderful force．When you swim underwater, you can feel water push down your body．The air all around you does the same．However, your body is so used to it that you do not notice this．The pressure is caused by a layer of air called the atmosphere．This layer surrounds the Earth, extending to about five kilometers above the Earth’s surface．

　　The following experiment is an easy one that you can do at home．But make sure that you are supervised, because you will need to use matches．Now foe the experiment!

　　·A hard-boiled egg without the shell

　　·A bottle with a neck slightly smaller than the egg

　　·A piece of paper

　　·A match

　　1)Check that the paper will sit firmly on the neck of the bottle．

　　2)Tear the paper into strips and put the strips into the bottle．

　　3)Light the paper by dropping a burning match into the bottle．

　　4)Quickly sit the egg on the neck of the bottle．

　　Astonishingly, the egg will be sucked into the bottle．Your friends will be amazed when you show them the experiment．But be careful when you handle matches．

　　As the paper burns, it needs oxyen and uses up the oxygen(air)in the bottle．The egg acts as a seal in the neck of the bottle, so no more air can get inside．This reduces the air pressure inside the bottle．The air pressure must equalize, so more air from outside must enter the bottle．The outside air pressure against the egg and then the egg is pushed into the bottle!The proves that air is all around and that it is pressing down on it．

(1)

(2)

(3)

(4)

完型填空

　　Mr．Brown lives in Sydney．His house is about five kilometers 　　1　　 his office and the bus can 　　2　　 him there．He likes football very much and wants to 　　3　　 the football matches．His wife likes to buy nice clothes and 　　4　　 her husband give all his wages(工资)to her and he has to do 　　5　　 she says．Then she always 　　6　　 some fares(车费)back to him．Of course Mr．Brown doesn’t have any money to buy the 　　7　　．

　　One evening he went to watch a football match．He bought a ticket 　　8　　 all his money and he 　　9　　 to go home 　　10　　 foot．When he 　　11　　 home, he was tired, but felt 　　12　　．Since then he began to go to work on foot．But he is 　　13　　 to tell his wife about it．

　　This morning when he was having breakfast, he 　　14　　 a piece of news over the radio : the bus fares were going to 　　15　　 in price．He hurried to turn it 　　16　　．but it was too 　　17　　．His wife asked,“What did the radio say?”

　　He had to 　　18　　 her all he heard．Then he became sad and said,“What a pity!”

　　“You must be happy, I think,”said his wife．“You will save some 　　19　　．”

　　“Sorry．I can’t 　　20　　 with you,”said Mr．-Brown．I’ll watch two matches short a month?

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

完型填空

　　Mrs．Evens was home from work．She had just gone into the kitchen to make the afternoon tea 　　1　　 she saw a mouse running around on the kitchen floor．She 　　2　　 and jumped up on the table．As soon as the mouse had disappeared, she jumped off from the 　　3　　, rushed out of the kitchen, 　　4　　 her coat, ran out of the house and got on a bus 　　5　　 was going into the town．

　　There she hurried into a shop and 　　6　　 a large mouse-trap．She wanted to put 　　7　　 to this mouse as quickly as 　　8　　．

　　When she got home 　　9　　 the trap, she realized that she had forgotten 　　10　　 any cheese to put in it．She searched everywhere 　　11　　 there was 　　12　　 in the house．It was too late to buy any because now all the shops were 　　13　　．She wondered what to do．In the end she 　　14　　 a clever idea．She took a pair of scissors and cut a picture of a piece of cheese 　　15　　 a magazine．Then she put the picture in the trap 　　16　　 a piece of cheese．

　　The next 　　17　　 Mrs．Evans came down to the 　　18　　 and went straight away to the place 　　19　　 she had put the trap．She wanted to see if her plan had 　　20　　．The picture of the cheese had gone and in its place was a picture of a mouse．

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

完形填空

　　I took home a briefcase full of troubles．As I sat down on that hot and damp 　　1　　, there seemed to be no 　　2　　 to the problems thrashing(翻腾)around in my brain．So I picked up a book, settled into a comfortable chair and 　　3　　 my own special therapy(疗法)－　　4　　 reading．

　　I 　　5　　 three or four hours on two short chapters of Personal History by Vincent Sheean－tasting each paragraph, staying over a sentence, a phrase, or even a single heat-wave night．Enjoying every word, I 　　6　　 foreign correspondent(通讯记者)Sheean on a mission to China and another to Russia．I 　　7　　 myself in the author’s world．And when finally I put it down, my mind was totally 　　8　　．

　　Next morning, four words from the book－“take the long 　　9　　”－were still in my mind．At my desk, I had a long-view look at my 　　10　　．Once more, “super-slow” reading had given me not only 　　11　　 but perspective(视角)，and helped me in my everyday affairs．

　　I discovered its 　　12　　 years ago．Previously, if I had been really interested in a book, I would 　　13　　 from page to page, 　　14　　 to know what came next．Now, I decided, I had to become a miser(守财奴)with 　　15　　 and stretch every sentence like a poor man spending his last dollar．

　　I had started with the practical object of making my book last．But by the end of the second week I began to realize 　　16　　 I was getting from super-slow-reading itself．Sometimes just a particular phrase 　　17　　 my attention, sometimes a sentence．I would read it slowly, analyze(分析)it, read it again－perhaps changing down into an even 　　18　　 speed－and then sit for 20 minutes thinking about it before moving on．I was like a pianist 　　19　　 a piece of music, phrase by phrase, practicing it, trying to discover and 　　20　　 exactly what the composer was trying to convey(传送)．

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)