Read the following article and select the best answer. Article: Wouldn't it be great if you could just look up at the sky and read the weather forecast right away? Well, you can. The forecast is written in clouds. If you can read that writing, you can tell something about the atmosphere. With some practice, you can become a pretty good weather forecaster. Who knows, you might even do as well as meteorologists . Meteorologists use much more information than just the appearance of the clouds to make their forecast. They collect data from all over the world. Then they put it into powerful, high speed computers. This does give the meteorologists an advantage, because they can track weather patterns as they move from west to east across the country. But you have an advantage, too. You can look at the sky and get your data directly. A meteorologist uses a computer forecast that's several hours old to make a local forecast. What are you seeing when you look at a cloud? "A picture of moisture is doing in the atmosphere," says meteorologist Peter Leavitt. There's moisture throughout the atmosphere. Most of the time you don't see it, because it's in the form of an unseeable gas called water vapor. Sometimes, the temperature of the air gets cold enough to cause the waster vapor to change to liquid water. It's called condensation , and we see it happen all the time (for example, when humid air from the shower hits the cold glasses of a mirror). When enough water vapor condenses , droplets come in the air. These droplets scatter light. A cloud is seen. Watching clouds over a day or two tells you a lot more than a single cloud about the weather to come. Changes in clouds show changes in the atmosphere. You should begin to notice patterns. Certain clouds, following each other in order, can signal an approaching storm. But don't take our word for it; see for yourself. Question: This passage mainly tells us about how to _ . - train ourselves as meteorologists - be an assistant to a meteorologist - forecast the weather by ourselves - broadcast the weather forecast
forecast the weather by ourselves

Read the following article and select the best answer. Article: Have you ever been to the beautiful country of Holland and its capital Amsterdam? Anyone who has traveled to Amsterdam would probably agree on one thing: Amsterdam's story is a tale of two cities -- one during the day and a completely different one at night. During the day, the largest city in the Netherlands sits quietly on the Amstel River.You can rent a bicycle, visit the Van Gogh or Anne Frank museum, or take a water taxi.But when the sun goes down, the partying begins.In the big clubs and in coffee shops, tourists gather to hang out, talk politics and smoke. Several areas of the city clearly show the two worlds that rule Amsterdam.And they're all within a short cab ride of each other.For example, Dam Square attracts daytime sightseers to its festivals, open markets, concerts and other events.Several beautiful and very popular hotels can be found there.And there's the Royal Palace and the Magna Plaza shopping mall. But at night party-seekers come to the square.Hip hop or funk music is heard there..So if you come, be ready to dance.The clubs don't shut down until 4 am. And while you're there, check out the various inexpensive ways to tour the city.Don't worry about getting lost.Although Dutch is the official language, most people in Amsterdam speak English and are happy to help you with directions.And you'll notice that half the people in the streets are on bicycles they rent. Amsterdam also has a well-planned canal system.For about 10 dollars, you can use the canal bus or a water taxi to cruise the "Venice of the North". The city has a historic past.One impressive place to visit is the Anne Frank House on Nine Streets.It was there that the young Jewish girl wrote her famous diary during World War II.Visitors can view Anne's original diary and climb behind the bookcase to the room where she and her family hid from the Nazis for two years. Question: What means of transport is not available to visitors in Amsterdam? - A carriage. - A bicycle. - A canal bus. - A water taxi.
A carriage.

*Question*
Read the following article and select the best answer. Article: For most city people, the elevator is an unremarkable machine that inspires none of the enthusiasm or interest that Americans afford trains, jets,and even bicycles. Dr. Christopher Wilk is a member of a small group of elevator experts who consider _ a misunderstanding. Without the elevator, they point out, there could be no downtown skyscrapers or tall buildings, and city life as we know it would be impossible. In that sense, they argue,the elevator's role in American history has been no less significant than that of cars. In fact, according to Wilk?the car and the elevator have been locked in a "secret war" for over a century, with cars making it possible for people to spread horizontally ,and elevators pushing them toward life in close groups of towering vertical columns. If we tend to ignore the significance of elevators, it might be because riding in them tends to be such a brief, boring, and even awkward experience^one that can involve unexpectedly meeting people with whom we have nothing in common, and an unpleasant awareness of the fact that we're hanging from a cable in a long passage. In a new book, Lifted, German journalist and cultural studies professor Andreas Bernard directed all his attention to this experience, studying the origins of elevator and its relationship to humankind and finding that riding in an elevator has never been a totally comfortable experience. "After 150 years, we are still not used to it", Bernard said. "We still have not exactly learned to cope with the mixture of closeness and displeasure." That mixture, according to Bernard, sets the elevator ride apart from just about every other situation we find ourselves in as we go about our lives. Today,as the world's urban population explodes,and cities become more crowded, taller, and more crowded, America's total number of elevators--900,000 at last count, according to Elevator World magazine's "2012 Vertical Transportation Industry"are a force that's becoming more important than ever. And for the people who really, really... Question: The author's purpose in mentioning cars is _ . - to contrast their functions with elevators, - to emphasize the importance of elevators - to reveal their secret war against elevators - to explain people's preference for elevators
**Answer**
to emphasize the importance of elevators