【正文】 he planet Earth turns under the hot rays of the sun．There was a large desert in Africa with no sign of（16）　　except a little rose．There was not a bird or tree in sight．The sand dunes（沙丘） became piles of burning coal as the days （17）　?。瓸ut the little rose successfully go through the cruelty of sun．The sun was very surprised to have seen the rose39。t know much about this desert．But it appears large and there seems to be no one else in the whole world my eye could reach．I began to feel（22）　　 for the loneliness of this desert and decided to help it as possible as I could．And in this process，I never（23）　　anything that caused pain to me．My whole concern has been to be a good friend to this desert and help get rid of （24）　　loneliness．Touched by the little rose39。t live without water．So it39。t wash clothes too often．When you use the washing machine，make sure there is not only a pair of pants in it．Outdoors：●Water the garden and grass at night．This gives water more time to get into the earth without evaporation from the day39。s important for everyone to save water because　?。? of the earth is water B．the water on the earth is cleanC．only a small part of the water is clean D．we need it to water plants27．What does the underlined wordevaporationmean in Chinese？　　A．流失 B．蒸發(fā) C．滲透 D．鎖住28．The following ways can save water according to the passage except　?。瓵．planting a shade garden under treesB．watering the garden and grass during the night timeC．catching the cold water when you wait for the hot water to showerD．using the washing machine as you like，no matter how many dirty clothes there are．29．In today39。t slow down to enjoy it，you will definitely miss something．I39。t get me wrong．I wouldn39。t use up your money．You don39。s salary on one day．A nice day at the park or museum can entertain everyone．There are nearby state parks that you can easily run out to and camp in for under $50for the whole family．How about family movie night？What about family video game night？There are so many ideas that folks seem to forget about．I encourage you to take a look at Modern Frugal Family．You can find all sorts of fun stuff to do with the family and search for all sorts of bargains．I know you will e up with some great ideas．If you do，you can share them with everyone．So get out there and enjoy life!29．In the first paragraph，the author mainly talks about her　?。瓵．interests B．daily life C．schoolwork D．family gathering30．What does the underlined phrasehit the sackin Paragraph 1probably mean？　　A．Have a lesson．B．Make a plan．C．Go to sleep．D．Take exercise．31．According to the author，　?。瓵．it39。t push their children too hardC．people should have fun more often in their lifeD．parents today spend too much money on their children．32．It took 100years，but finally，scientists proved Albert Einstein39。s general theory of relativity nearly 100years ago．It was the theory of the physics behind the workings of our world and the universe．The idea was that the waves are like waves in space，caused by some of the violent and energetic processes in the universe．For example，two black holes crashing into each other．Now a group of scientists，including ones from Caltech，MIT and the LIGO Scientific，Collaboration finally found the gravitational waves．David Reitze is the executive director of the LIGO observatory at Caltech．We have detected gravitational waves．We did it!What are these gravitational waves？Well，imagine throwing a rock into a pond．When the rock hits the flat surface of the water，it creates waves．Space﹣time is like the surface of the water．So that means gravitational waves are like the waves moving out from where the rock hits the water．It might be hard to understand，but those gravitational waves expand and contract space and time as they move through space．And when they get to the Earth，the waves pass through，and they contract and expand the planet as the waves go by．It was Einstein who said these gravitational waves should be observable．But these are not huge waves．They are very，very small，which is why it took so long to find them．You cannot see them with your eyes．They are smaller than the size of an atom．How did the scientists find them？They used a giant scientific tool called LIGO，which stands for the Laser Interferometer Gravitational﹣Wave Observatory．The billion﹣dollar LIGO project is two L﹣shaped observatories．One is in Louisiana and the other in Washington state．For years，scientists have been watching two black holes in another faraway galaxy．The two were spinning around each other，moving closer and closer together．When they finally crashed into each other，it was with such power and force that gravitational waves rang throughout the universe，like a giant bell．Those waves，traveling at the speed of light，finally reached the Earth，some years later．They are the same waves that the scientists announced this past week．So，what does this discovery mean？Our understanding of the heavens changed dramatically．32．What are gravitational waves about？　　A．About the workings of the universe．B．About how black holes form．C．About how the universe began．D．About how the waves form on the surface of water．33．The underlined sentencetwo black holes crashing into each otheris used to express　?。瓵．how the universe begins to exist B．how gravitational waves formC．how new black holes appear D．how the earth is affected34．Why are gravitational waves difficult to find？　　A．Because they are too small．B．Because they are far away．C．Because they seldom occur．D．Because they have disappeared．35．With the discovery of gravitational waves，we39。s important to make full use of every minute by managing your time　　（wise）．37．John is fond of sports，so he is now much　?。╤ealth） than before．38．Many young people want to bee cartoon　?。╝rt） in the future．39．Neil Armstrong is the first man to walk on the