Last Sunday Li Lin，one of my classmates，and I go to a bookstore. At a counter we noticed that the foreigner was talking to a clerk，and the clerk didn't understand what the foreigner said. So we went up to the foreigner and was asked if he needed help in English. After known what kind of books he really wanted，we took him to the shelf which he was looking. He was interested in Chinese folk music deep. We gave him some advices on what to choose. The foreigner picked some music tapes with his help. He gave his sincere thanks to us and left，satisfied and happily.

   Have you ever had the following experience? You have been given the task of organizing a conference, which includes a must-do list about a mile long. There are the conference site, the guest list, the materials, the technology and even the food and drink to think about and plan. If you are beginning to feel the stress, slow down and take a breath. 【小题1】

Write down your goals. You will need to clearly define what you hope to accomplish with this conference because this will shape the rest of your decisions.【小题2】

Develop your budget.【小题3】 Then break that budget into different parts such as the conference site, materials and speakers’ fees. Stick to your budget, and make sure your assistants are keeping their monetary limits as well.

【小题4】 When searching for locations, keep in mind the number of participants, the convenience of the location, parking and closeness to public transportation, airports and hotels. Your goal in finding a place to hold the conference should be making it as easy as possible for participants to attend.

Seek help from the staff of the conference site. If you have chosen a site that is known for holding conferences, you can seek help from the staff there as organizing meetings is what they do every day.【小题5】 They should be able to answer any questions or concerns and provide advice when needed.

Of course, full preparations also include a walk-through. Go to the site and meet with the staff the day before to be certain that everything is in place and to take care of any small details.

With the improvement of living standards, there has been a tendency that people begin to turn to cars.

So why not ride bicycles and lead a low-carbon life?

   Of all my dreams, my least favorite is the one where I'm in a car. It always begins with me driving, but eventually I realize that for some reason I'm sitting in the back seat. I can’t keep the car under control, rushing toward the roadside until, screaming, I wake up.

This is like the passenger experience in Waymo's self-driving cars. You sit in the back seat of a vehicle and watch as the wheel turns itself above an entirely empty driving seat.

''We made you live your nightmare, '' a Waymo staff member joked after I exited one of the company's fully self-driving car, following a quick drive inside its secret testing site. Waymo, a self-driving car company, arranged these rides for 40 journalists at this site.

There were also some demonstrations(演示). We watched as a Waymo car was cut off by a speeding vehicle. Then the employees created a situation in which a pile of moving boxes fell into the street just as another car passed in the opposite direction. Throughout the day, the cars performed impressively, driving with the level of care you might take if you had a wedding cake in the back seat.

During these demonstrations, Waymo gave information about what it was planning to do with these vehicles. The company has laid out four ways that its technology could be made available to the public. But Waymo's CEO, John Krafcik, wouldn’t show which of these was likely to come to market first, or on what kind of timeline.

I can't help but admire that Waymo is succeeding in developing this technology. There are countless possibilities at play on the road. The task of programming software to react to all those situations is unimaginably complex. What a great breakthrough!