The "One Belt One Road" strategy proposed by President Xi Jinping has drawn public attention to{#blank#}1{#/blank#} oldest and longest trade route—Silk Road. The term in a narrow sense refers to an ancient overland trade route{#blank#}2{#/blank#}(form) in the Western Han Dynasty. This route stretched 4,350 miles from Chang an to western China, central Asia, and even to Europe,{#blank#}3{#/blank#} (enable) theses regions to have better communications in diplomacy, business and culture.

    China was the first country in the world to breed silkworms and produce silk fabric. This craft skill reached a{#blank#}4{#/blank#}(fair) advanced level in the Zhou Dynasty. As a major export to Europe, "silk" was used to name this great route by a German geographer. China's silk{#blank#}5{#/blank#}(introduce) into western countries through this old trade route. People were{#blank#}6{#/blank#}(familiar) with his product at the beginning, and made many guesses at{#blank#}7{#/blank#}it was produced. According to the record, the idea that silk was picked from trees was widely accepted by folks in Europe.

    {#blank#}8{#/blank#}(garment) made of this fabric were always best sellers, and were considered a social status symbol. Ever the gorgeous Egyptian queen, Cleopatra, was also a big fan of the silk. This fascination led to an increasing demand{#blank#}9{#/blank#} this product, and promoted the{#blank#}10{#/blank#}(develop) of this trading route.

    I can't help but feel {#blank#}1{#/blank#}(concern) about the {#blank#}2{#/blank#}(destroy) of tropical forests. It is one of the most serious environment problems today. From {#blank#}3{#/blank#} I know, people are damaging thousands of square {#blank#}4{#/blank#}(kilometer) of forests every day. This is killing hundreds of wild animals that live in the forests.

    {#blank#}5{#/blank#}(fortunate), we do nothing but talk about it. We don't do anything {#blank#}6{#/blank#}(protect) the forests. We need to stop people doing it. There should be {#blank#}7{#/blank#}(strong) laws. I think that people who cut {#blank#}8{#/blank#} forests should go to prison. That's what should happen to people who destroy the forests and kill wildlife.

    In my opinion, we, human beings, must protect wildlife {#blank#}9{#/blank#} future generations. Hopefully, our children {#blank#}10{#/blank#}(be) more responsible than we are today.

Lesson 3：…the tree was planted near a church fifty years ago, but it is only in recent years that it has gained an evil {#blank#}1{#/blank#}. ... He has pointed out that the tree is {#blank#}2{#/blank#} useful source of income {#blank#}3{#/blank#} tourists have been coming from all parts of the country to see it.

Lesson 4：…As the neighbors complained {#blank#}4{#/blank#} the noise, my husband spent weeks training him to press his paw on the latch to let himself in. …Since then, he {#blank#}5{#/blank#} another bad habit…. After this he immediately lets himself in and begins barking again. Yesterday my husband {#blank#}6{#/blank#} the gate and Rex got so {#blank#}7{#/blank#} we have not seen him since.

Lesson 5：…A relation of {#blank#}8{#/blank#} is coming to see you. …The moment you leave this tent, you {#blank#}9{#/blank#} a big surprise. “Where have you been hiding?” she asked {#blank#}10{#/blank#}.

    There is a wonderful story about Jimmy Durante, {#blank#}1{#/blank#}is one of the great singers in the twentieth century. One day, when {#blank#}2{#/blank#}(ask)to be part of a show for some old World War II soldiers, Jimmy said he could afford only a few minutes and {#blank#}3{#/blank#}he would come if they wouldn't mind his singing one short song and immediately leaving for his next appointment. Of course, the show's director agreed happily.

    But when Jimmy got on stage, something {#blank#}4{#/blank#}(surprise) happened. He went through the short song and then stayed. The applause grew louder and louder and he kept staying. Pretty soon, he had been on stage{#blank#}5{#/blank#}fifteen, twenty, and then thirty minutes. One of his assistants behind the stage stopped him and said, “I thought you had to go after a few minutes. What happened?” Jimmy answered, “I did have to go, but I can show you the reason{#blank#}6{#/blank#} I stayed. You can see for yourself if you look at the front row.” In the front row {#blank#}7{#/blank#}(be) two men, both of {#blank#}8{#/blank#}had lost an arm in the war. {#blank#}9{#/blank#}had lost his right arm and the other had lost his left. Together, they were able to clap, and that was exactly{#blank#}10{#/blank#} they were doing, loudly and cheerfully.