In the past, it took a long time for people to find someone. Nowadays, however, {#blank#}1{#/blank#} the help of online communities, people can get their search {#blank#}2{#/blank#} (do) within a short period of time. All they need to do{#blank#}3{#/blank#} (be) get online and upload a picture of the person they are looking for, or share some basic information about this person. Because of the “footprints” people{#blank#}4{#/blank#} (leave) online, other Internet users are usually able to find anyone {#blank#}5{#/blank#} they are interested in.

    One example of this is a man who beat a dog cruelly. His  {#blank#}6{#/blank#} (violent) was recorded and uploaded online. In a very short time, the man was reported to an animal rescue team. In the end, he was punished and made to apologize. {#blank#}7{#/blank#} example involves a college student who refused{#blank#}8{#/blank#} (clean) up after her dog on the subway. Netizens revealed her personal information in order to punish her.  {#blank#}9{#/blank#} (wide) blamed for her behavior, this girl left college eventually. Many people thus began to debate {#blank#}10{#/blank#} a “witch-hunt” like this went to far or not.

    Many teachers believe that hands－on experience is the {#blank#}1{#/blank#}(good) way to learn. A group of students in the United States are putting that belief to the test. They {#blank#}2{#/blank#} (success) designed and built a robot for discovering unexplored mines {#blank#}3{#/blank#} the bottom of the sea. Students made the robot {#blank#}4{#/blank#}(answer) a challenge from the U．S. Department of Defense.

    The students recently tested the underwater vehicle {#blank#}5{#/blank#}(call) PerseusⅡin a 95－meter－long tank of water at the Stevens Institute of Technology.

    The robot costs about $15,000 to build. The students use a video game control to direct {#blank#}6{#/blank#}(it) movements in the tank. What's more, devices known as Japters {#blank#}7{#/blank#} (able) the robot to go up, down and toward its target in the water. Video cameras on the robot send images back to a computer through a 13－meter－long cable. Perseus Ⅱ,{#blank#}8{#/blank#}the students worked up to 20 hours a week to design and build, also has {#blank#}9{#/blank#} set of lasers (激光), which are used to measure the size of an object.

    DeLorme supervised the project from {#blank#}10{#/blank#}(begin) to end. He says the specialized requirements of robots were demanding.

    Stephen William Hawking (born on January 8, 1942) is an English theoretical physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge. As a child, he was enthusiastic about{#blank#}1{#/blank#}(design) complicated toys but {#blank#}2{#/blank#} (unfortunate), in his twenties, he suffered{#blank#}3{#/blank#}a disease that couldn't be cured,{#blank#}4{#/blank#}was a great challenge for him. As the condition {#blank#}5{#/blank#}(progress) over the years, finally he became almost entirely paralysed (瘫痪的) and could only communicate through a speech generating device. However, not only was he positive about the misfortunes, but he also eventually defeated all the {#blank#}6{#/blank#} (obstacle) and became {#blank#}7{#/blank#} (absorb) in his research into the universe. In 1988, his best-seller A Brief History of Time{#blank#}8{#/blank#}(publish), in which he put forward the idea that time{#blank#}9{#/blank#}(it) has a beginning, and that it will have an end. This book stayed on the British Sunday Times best-seller list for a record-breaking 237 weeks. In{#blank#}10{#/blank#} (conclude), he has made outstanding contributions to the fields of cosmology and quantum gravity.

    The Dragon Boat Festival is a {#blank#}1{#/blank#}(tradition) holiday that commemorates the life and death of the famous Chinese scholar Qu Yuan.

    It is a day when many people eat zongzi and race dragon boats. In ancient  China,  the festival {#blank#}2{#/blank#} (celebrate) as "Poets' Day" in honor of Qu Yuan,  {#blank#}3{#/blank#} was known as China's first poet.

    {#blank#}4{#/blank#} is commonly believed that the local people began {#blank#}5{#/blank#} tradition of throwing sacrificial cooked rice into the river for Qu Yuan, while others hoped that the rice would prevent Qu Yuan's body from being eaten by the fishes in the river. At first, the locals decided {#blank#}6{#/blank#} (make) zongzi in hopes that it would sink into the river and reach Qu Yuan's body. However, the tradition of wrapping the rice in bamboo {#blank#}7{#/blank#} (leaf) to make zongzi began the following year.

    A dragon boat, usually made of wood to various designs and sizes, is a human-powered boat. They often have brightly decorated designs that range anywhere from 40 feet in length {#blank#}8{#/blank#} 100 feet, with the front end shaped like open-mouthed dragons, and the back end with a scaly tail. The boat can have up to 80 rowers to power the boat, {#blank#}9{#/blank#}depend) on the length. A sacred ceremony is performed before any competition in order to "bring the boat to life" by painting the eyes. The first team {#blank#}10{#/blank#} (gain) a flag at the end of the course wins the race.