Flying across the globe, whether on business or for leisure, is usually effortless-you just have to book your ticket, pack your bags and show up at the airport with your passport. You board the plane and several cocktails and movies later, you arrive at your destination. People are becoming more aware of their smart travel. Here are some tips on how to be a clever traveler. Easy checkin Avoid the queue and check yourself in by using the MAS Web CheckIn (malaysiaairlines.com) in the comfort of your own home or office. Passengers can now check in online anytime from 24 hours to 90 minutes ahead of the scheduled departure time (出发时间). This is available for flights departing from all MAS stations-except Paris, Kunming, Xiamen and Bandar Seri Begawan-to all MAS destinations. You can even select preferred seats online. Bag hygiene (卫生) No, we're not talking about the cleanliness of your bags!It's aviation talk for a bag that doesn't carry any old baggage tags (标签) with barcodes (条码) that could confuse the baggage sensor (探测装置). If you find yourself arriving in Sydney while your bag lands in Tokyo, it could be because of your old baggage tag. Another reason why bags go missing could be the printing quality of the barcodes; bags are misdirected because the sensors can't read the codes correctly. Less is more Most airports around the world now set a weight limit of 32kg per piece of baggage. This will not only help protect the airline workers' health, it will also be easier for you to carry your bags around.Avoid packing erous goods or placing valuables inside your checkin luggage. Ensure that locks are properly secured as a lot of baggage locks are found caught between the conveyor belts.Smaller and softer bags are usually placed inside a tray at checkin to protect the locks from contact with the conveyor belt. 1. The passage mainly tends to tell us how to travel________. A. in a comfortable way B. in a fashionable wayC. in a neat and orderly way D. in a cheap and safe way 2. From the passage, we can know that passengers________. A. can check in without going to the airportB. have to check in 24 hours earlierC. are required to check in on the MAS WebD. can select their favorite seats when getting aboard 3. What are the reasons why the baggage is often missing according to the passage?a. The bags are too old and dirty.b. The sensors can't read the barcodes correctly.c. The old tag is still on your bag.d. The bags are too heavy to check in. A. a; b B. b; c C. c; d D. b; d 4. Judging from the writing style of the passage, it is________. A. a piece of advertisementB. a science reportC. a passage for professional readingD. a passage from a magazine