The Xi’an City Wall is the most complete city wall that has survived China’s long history. It     1     (build) originally to protect the city     2     the Tang dynasty and has now been completely restored (修复). It is possible       3     (walk) or bike the entire 14 kilometers.

We accessed the wall through the South Gate. The wall is 12 meters high and from here you can see streams of people moving inside and outside the City Wall.

After     4     (spend) some time looking at all the defensive equipment at the wall, we decided it was time for some action and what     5     (good) than to ride on a piece of history!

We     6     (hire) our bikes from the rental place at the South Gate. My bike was old and shaky     7     did the job. It took us about 3 hours to go all     8     way around the Xi’an City Wall. Supposedly you can do it in two hours, but we stopped at the different gates and     9     (watchtower) to take pictures or just to watch the local people going about their     10     (day) routines.

Kim Cobb, a professor at the Georgia Institute of Technology in Atlanta, is one of a small but growing minority of academics     1     are cutting back on their air travel because of climate change. Travelling to conferences, lectures, workshops, and the like — frequently by plane —     2     (view) as important for scientists to get together and exchange information. But Cobb and others     3     (be) now questioning that idea pushing conferences to provide more chances to participate remotely, and     4    (change) their personal behavior to do their part in dealing with the climate change crisis. On a website called No Fly Climate Sci, for example,     5    (rough) 200 academics — many of them climate scientists —    6     (promise) to fly as little as possible since the effort started two years ago.

Cobb, for her part, started to ask conference organizers who invited her to speak     7     she could do so remotely; about three-quarters of     8     time, they agreed. When the answer, was no, she, declined the     9     (invite). That approach brought Cobb's air travel last year down by 75%, and she plans     10    (continue) the practice. "It has been fairly rewarding.", she says, "a really positive change."

6 . According to Jessica Hagy, author of How to Be Interesting, it’s not difficult to make yourself interesting at a dinner party.

    1    , if you’re out of your comfort zone or if you’re wandering into somebody’s house for the first time. So the main thing is just to show up and be adventurous, trying different foods and talking to strangers.

People love to talk about themselves. If you can start the conversation with a question other than “What do you do for a living?”, you’ll be able to get a lot more interesting conversation out of whomever it is you’re talking to.     2    , it can bring in “I have this old, broken-down vehicle” or “I rode the bus with these crazy people who were laughing at silly jokes in the back.” It just opens up conversation.

    3    ? If you can’t take their wine away, you should certainly try to take away their soapbox (讲台). If you’re the host, you can ask them to help you in the kitchen with something and just remove them from the situation.    4    .

And what about that other dinner-party killer: awkward silence? If you’re faced with an awkward silence at a dinner party, the only thing that always gets everyone talking again is to give the host a compliment (赞扬).     5    . Just quickly turn around and say, “This cake is extremely delicious and you have to tell me all about it.”

So being interesting at a dinner party isn’t that hard.