Speaking of map apps, some users have found that they are useful for more than just     1    (find) one's way. One man, San Francisco's Lenny Maughan, uses them to make works of art.

Lenny runs everywhere he can.     2     he goes, he tracks his progress by using an app, such as Map MyRun or Strava. As he runs, the app traces a line along the path he follows. So, to make his runs more fun, Lenny decided to run     3     patterns that would create amazing images. To date, he has shared runs that have turned into images of a heart, a portrait of artist Frida Kahlo, and more.

There are two different ways to think about an old shipwreck(沉船). Some people value its financial worth. They’ve spent a lot of time and money searching for the wreck. When they     1    (final) find it, they believe that the ship and its contents should be     2    (they). These people are usually referred to as treasure hunters. For other people, however, a ship     3    (lie) at the bottom of the sea is a valuable opportunity to study how citizens from past cultures lived and traveled. Those people are marine archaeologists,     4     study underwater historical sites.

I grew up in a remote village. There was no such thing as a book in most families. It was at the school library that I     1    (discover) the joy of reading. There I spent hours reading whatever attracted my interest. I’m sure I did not understand everything in those books at the time.     2     I did understand was the pleasure that good stories offer and the power of books to introduce me to lives and experiences     3     my own. I was “hooked on books,” as the saying goes.

It was a summer day. We，three former classmates were fishing by the river. We sat at the bank quietly，watching our plastic floats on the surface of the water. Suddenly，     1    （cry） of "Help! Help! Help!" came to our ears. We turned to look down the river and knew immediately what had happened. A group of small children were crying       2     one boy was struggling and drowning in the river. We dashed to them and I was the first to get there. I threw myself into the river and swam toward the struggling boy. When the boy     3     （pull） onto the bank， we breathed a sigh of relief.

Times Higher Education (THE) has released its World University Rankings 2021, with Tsinghua University in Beijing     1     (become) the first Asian institute to ever break the top 20. An additional 15 other Asian universities also made the top 100. The University of Oxford took the top spot for the fifth year in a row,       2    (follow) by Stanford, Harvard, Caltech and MIT. “The Asian universities are developing quickly, and some western universities     3     (face) the very real risk of losing many international talented students and a lot of income     4     they bring.” said Phil Baty, Chief Knowledge Officer at THE.

Until a few years ago I was a chef, and a happy one at that, but I wanted more out of life. I wanted to travel. At that time, I     1     (find) that I took pretty good pictures. So I decided to post pictures on my blog. In less than 18 months, there were over 200,000 people     2    (read) my blog! At first, I only regarded it as a hobby, but many     3    (company) started paying me to take photos and publish them.     4     2013, I was determined to make my dream come true: I would become Australia’s first professional photo blogger. It was a challenging job, but I did it.

My brother was my personal guardian, a friend, and a mentor. Although we were 6 years apart in age,     1     is considered a large gap between kids, my brother and I often played together. During difficult times, my brother never     2     (fail) to give me his attention and help. Whenever I had trouble with school work, he would make     3     (he) available to help. When I was in 5^th grade, I couldn’t make sense of the music teachings of my teacher. My brother took the time to study music in order to teach me the notes and scales. I was not able to understand anything through my teacher     4     everything made sense and the logic of music became apparent through my brother.

It seems like common sense: eating local food should be better for the environment, because it     1     (transport) short distances.    2     (Unfortunate), it is not that simple. It is the production of food, not its transport, that uses most of the energy and     3     (produce)most of the greenhouse gases. In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away—even taking into account its transport.

This year I entered the Great Gorilla (大猩猩) Run in London. This is a programme run by The Gorilla Organization which raises money     1     (save) the world’s last remaining gorillas from dying out. Each runner receives a gorilla suit and off they go! It’s a bit hot and sweaty inside the suit, and my legs ache,     2    it’s a lot of fun. The funniest moment was when someone watching the race offered me a banana—a real treat for a    3     (run) gorilla! I had a great day out in London, as well as helping to save gorillas!