【正文】 linked to the app and is automatically charged so no physical money is ever needed. Lyft Lyft is a service that is also available in many large cities in the US. However, it offers something different, one of which is Lyft Line. With this service, you can find people that take the same route on a daily basis as you and split the fare with them. Lyft’s regular service lets you easily see where rides are, catch one, and easily pay right within the app. Easy Taxi Easy Taxi is available in 86 cities across 26 countries and lets you quickly scrub through maps and find locations you’d like to be picked up at. From there, just make sure there are taxis in your area. Confirm your ride and then pay for it within the Easy Taxi app. Once you book a ride, you should see the taxi’s plate number and phone number appear on the map, making it easy for you to pick out both the car and the driver. Curb Curb, formerly Taxi Magic, is currently available in around 60 cities across the United States as well as select cities in the United Kingdom, Canada, and Mexico. It ties in with taxi panies and their drivers. As your taxi makes its way to your location, you’ll be able to track its progress inside the app. You can link a payment account to Curb to pay your fare through the app. You can also pay in cash. 21. Which app is available in the most countries? A. Uber. B. Lyft. C. Easy Taxi. D. Curb. 22. What’s the special service of Lyft? A. You can pay the fare in cash. B. You can see where your ride is. C. You can get fare quotes in advance. D. You can find someone to share the fare. 23. What do the four apps have in mon? A. They are available worldwide. B. They are tied to taxi panies. C. They allow users to pay via app. D. They can identify your location. B I had been following the yellowishgreen markers for a “popular and easy” threemile outandback hike (遠(yuǎn)足 ). Immediately after the trailhead, the trail (小徑 ) became very rocky and steep. But having read about the hike, I knew within five minutes, I was supposed to reach the hike’s first overlook. However, the overlook never arrived. Instead, I found myself lost in the woods. Pulling out my cellphone, I saw it read “no service”. I checked the last text message I’d sent to my mom. It read: “Conference ended ... going for a small hike before my flight home this afternoon.” I put my phone away and kept moving and yelling: “Help! Is anybody out there?” Every so often, I’d stop to listen, but I never heard a reply. I got out my phone again. The battery was running out fast as it searched for a signal. I struggled to find a place where I could get service. When I did, I called my mom. It went through! In a shaky voice, I said, “Mom?” and then the call dropped. More than 1,500 miles away, my mom instantly knew something was wrong. She called the Denver Police Department and was directed to the US Forest Service. This was how I was introduced to John, an operator from the US Forest Service. Following John’s instruction on the phone, I finally escaped from the woods. I breathed a sigh of relief. Then my phone rang, and it was John, making sure I was still going in the right direction. “By the way,” he said, “we’ve had your mother on hold this whole time. So once you get down the mountain, you will absolutely want to give her a call.” 24. What did the author do while finding the trail rocky and steep? A. He yelled for help. B. He continued walking. C. He returned to the start. D. He found the first overlook. 25. When did the author tell his mom about the hiking? A. After he got lost. B. After John’s call. C. After a conference. D. After the call dropped. 26. How did the author’s mom know he was in danger? A. The author called and told her about it. B. The author’s flight didn’t arrive on time. C. She learned it from the US Forest Service. D. She sensed something unusual on the phone. 27. What can we learn from the last paragraph? A. John came to the woods for the author. B. The author’s mom was on line waiting. C. John lost touch with the author’s mom. D. The author went in the wrong direction. C The fact that ants are fascinating insects has been known for some time. Now, scientists have discovered a large number of wood