Chuck Wall teaches management and human relations at Bakersfield College. He walked into class one day and told his students that their homework was to perform a simple and random act of kindness. Not {#blank#}1{#/blank#} (understand) the homework, the students didn't know what to do. Chuck didn't answer their questions{#blank#}2{#/blank#} he encouraged his students to work it out by themselves.

    One week later, the students entered the classroom and began sharing their stories{#blank#}3{#/blank#} (excited). One reported on helping a poor dog {#blank#}4{#/blank#}(abandon) by its owner. Another student told others about giving blankets away to the homeless. Gradually, more and more students developed the habit of doing such kind acts, from{#blank#}5{#/blank#} they benefited a lot.

    Since then, similar kind acts{#blank#}6{#/blank#}(perform) in schools around the world. Many schools organize a. Random Acts of Kindness Week, around November 13^th{#blank#}7{#/blank#}(celebrate) World Kindness Day. Some schools use each day of Random Acts of Kindness Week to perform a {#blank#}8{#/blank#}(differ) kind act, such {#blank#}9{#/blank#}making a new friend, helping someone, doing community service or raising money for a charity. In this way, students learn to consider other people and think about how small actions can make the world a{#blank#}10{#/blank#} (good) place.

    Today we talk about a word that is a feeling as well as a place. This word is “home.” Long ago in the 1700s, “home” was used as a verb,{#blank#}1{#/blank#} (mean) “to be guided to a destination.” So, when you home in on something, you get {#blank#}2{#/blank#}(close) to your target. For example, you could say, “Police are homing in on the suspects.” That is also where we get homing pigeons－pigeons that can find {#blank#}3{#/blank#} (they) way home after being released.

    But today, “home” is more often used as a noun. And it has a very emotional {#blank#}4{#/blank#}(connect) for American English speakers. You can remember the meaning of the word by the expression “home is {#blank#}5{#/blank#} the heart is.” That expression means home is anywhere you feel love and comfort. It is a place where you belong, and often a place you consider your origin. In other {#blank#}6{#/blank#} (word), “home” is not {#blank#}7{#/blank#}(simple) a building where you live—that's a house. There is a big difference {#blank#}8{#/blank#}a home and a house.

    The writer, Thomas Wolfe, had {#blank#}9{#/blank#} different idea about home. In 1940, his book “You Can't Go Home Again”{#blank#}10{#/blank#} (publish). Today we use this title to mean that the ideas and feelings that you had as a child often change when you are an adult. So, even if you return to the place where you grew up, time and distance have changed your perspective (观点).

    The world's longest sea bridge {#blank#}1{#/blank#} (call) the Hong Kong-Zhuhai-Macau Bridge has opened. The bridge {#blank#}2{#/blank#} (link) Hong Kong and Macau to mainland China. {#blank#}3{#/blank#} took more than a decade to construct it. Builders had to make artificial islands in the Pearl River Delta {#blank#}4{#/blank#} (provide) the supports for the bridge. There is also a 6.7-kilometre underwater tunnel in the middle of the bridge, {#blank#}5{#/blank#} allows ships to sail through the Delta. The new bridge stretches {#blank#}6{#/blank#} (long) than 14 Golden Gate Bridges lined up end to end. The bridge will {#blank#}7{#/blank#} (great) cut the time it takes to travel from mainland China to Hong Kong and Macau.

    Chinese President Xi attended the opening ceremony of the bridge. He hopes the new crossing will help to connect 68 million people in 11 different {#blank#}8{#/blank#} (city). China's government believes that up to 29,000 cars will cross the sea link daily by the year 2030. A trade and tourism expert said, “This makes Hong Kong a lot more accessible for goods, passengers and trade, so this is a benefit {#blank#}9{#/blank#}the economic perspective.” The bridge will be open to tourists to drive across it. However, local car owners will not be able to cross the bridge {#blank#}10{#/blank#} they have a special permit. Most drivers will take a shuttle bus to make the journey.

    China's Chang'e 5 mission {#blank#}1{#/blank#} (successful) delivered samples of moon rocks and dust to Earth on December 17, 2020. It marks {#blank#}2{#/blank#} first time in 44 years that moon rocks have been brought back to our planet.

    The sample capsule landed in Inner Mongolia {#blank#}3{#/blank#} a little after 2:00 a.m. Thursday local time. The drop-off was the ending of a 23-day mission that began on November 23, {#blank#}4{#/blank#} China sent up Chang'e 5 from a site on Hainan Island. The mission's goal was {#blank#}5{#/blank#} (collect) at least four pounds of material and bring it back to Earth.

    The material collected by Chang'e 5 was from a site in the northwest region of the moon's near side. This area was formed more recently, and the rocks here {#blank#}6{#/blank#} (think) to be only about 1.2 billion years old now. That means scientists {#blank#}7{#/blank#}(study) the material could learn more about the {#blank#}8{#/blank#} (evolve) of the moon.

Although Chang'e 5 was a short mission, it was one of {#blank#}9{#/blank#} (complex) projects undertaken by the Chinese space program so far. The country is far from done with the moon—Chang'e 6, {#blank#}10{#/blank#} (it) second lunar sample return, is ready to launch in 2023 or 2024.