【文章內(nèi)容簡介】 ve their dogs near icy ponds（5）What is the best title for the passage? A.A man39。s pet dogB.A dog39。s best friendC.The danger on the icy lakeD.Suggestions for pets39。 owners6．閱讀理解 Have you noticed your life being a little easier? Now, when you go to a certain shopping mall, you can enjoy its free WiFi there. When you want to take a taxi, you can book one with your phone. In fact, all these can be seen as the basic parts of a smart city. The idea of a smart city was brought up by US pany IBM in 2010. Generally, a smart city is a city that uses digital technologies such as the Internet to improve city planning, save money and resources, and make our life convenient. How smart can a city be? Here are great examples that we can learn from. In 2009, Dubuque became the first smart city in the US. The city used smart water meters to take the place of traditional water me tens. They can detect （探測） water waste and leakage （泄漏） and send data to let the house owner know. The same system is used for other city resources like electricity and natural gas. In this way, people know how they use their resources and are glad to help reduce waste. Santander in Spain also gives us a look at the future. If people point a phone toward a nearby bus stop, the phone immediately shows all bus lines that serve the stop as well as their arrival times. The government organized a research team and provided an App （應(yīng)用程序） that collects data on almost everything: light, temperature, and the movements of cars and people. Opening the App near a supermarket provides immediate information on special offers.（1）The underlined word convenient is closest in meaning to ______. A.usefulB.normalC.suitableD.easy（2）Compared with traditional water meters, smart water meters do better in ______. A.cleaning waterB.supplying waterC.saving waterD.producing water（3）The example of Santander shows the use of smart systems in aspects （方面） EXCEPT ______. A.businessB.health careC.traffic controllingD.public transportation（4）What39。s the main idea of the passage? A.Digital technologies help improve city planning.B.Smart cities will make our future life better and smarter.C.Smart cities are very mon in both Dubuque and Santander.D.Spain and the US take the leading position in building smart cities.7．閱讀理解 Many people thought a puter wasn39。t supposed to be able to beat a top master at the ancient Chinese game, Weiqi, for at least another 10 years. But AlphaGo, an artificially intelligent system （人工智能系統(tǒng)） designed by Google, made it. It easily beat Lee Sedol last year, one of the best players in the world. It challenged the world39。s top players to show how much progress it had made over the past few years. In late May, 2017, AlphaGo appeared in China and played against 19yearold Ke Jie in Wuzhen, China. He is No. 1 player now in the world. However, the result wasn39。t out of people39。s expectation. He lost the match. Though Ke Jie tried his best and he once saw the victory just a step away, he lost his best chance when he became excited. At the press conference （新聞發(fā)布會(huì)） after the match, Ke Jie was interviewed by the reporters. He said he had realized how powerful AlphaGo was, and it was getting perfect. When a Chinese reporter asked him in English, the reporter spoke so fast that the interpreter （口譯員） couldn39。t catch him. Ke Jie got kind of angry and told him that it was unnecessary for two Chinese to speak in English. The reporter apologized to him and offered to ask him for a coffee. The cat and mouse game is over, but the challenge between man and robots will still go on. （1）Which was the most probable date when Ke Jie played against AlphaGo? A.May 5.B.May 23.C.May 18.D.May Day.（2）Why did Ke jie get angry at the press conference? A.Because he lost the game.B.Because the reporter couldn39。t catch the interpreter.C.Because the reporter asked him in English.D.Because the reporter wasn39。t able to speak Chinese well.（3）According to the passage, which of the following statements is TRUE? A.People thought a puter could beat humans many years ago.B.Ke Jie was expected to lose the match.C.Ke Jie asked the reporter for a coffee.D.AlphaGo had great trouble winning the game last year.（4）AlphaGo is ______. A.Ke JieB.Lee SedolC.a Weiqi matchD.an artificially intelligent system8．閱讀理解 Why does the sky change colors? What is the sky? How high is it? What color is it? What birds can live above it? These questions are difficult to answer, aren39。t they? In fact, the sky has no color. Then why does the sky look blue? We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can39。t fly very high. That is because the air gets thinner when they go higher. The same will happen to us if we go high enough. If we go up about 1, 200 kilometers from the earth, we39。ll find no air there. Some birds can fly into the sky as high as a plane, but they cannot fly or live without air. Looking up above us, you will see the blue sky with white clouds. It is usually light blue. The color would be bluer when you see on the top of a high mountain. And you will see fewer clouds in the sky between you and the sun. Sometimes the sky doesn39。t look blue. When the sun rises and falls, you will see red, orange, and other colors in the sky. Such are the most beautiful moments of the day. Who can see the colors of the sky high above the earth? The astronauts! They can see those beautiful colors of the sky from the outer space. However, before flying into outer space, they sit in a spaceship high above the earth, and there is no air at all. The sky would be that dark and its color would be black.