Body language is one of the most powerful {#blank#}1{#/blank#}(mean) of communication, often even more powerful {#blank#}2{#/blank#}spoken language. People around the world show many kinds of feelings, wishes and attitudes that they might never speak aloud. {#blank#}3{#/blank#} is possible to "read" others around us, even if they do not intend for us to catch their {#blank#}4{#/blank#}(speak) communication. Of course, body language can be misread, {#blank#}5{#/blank#} many gestures and actions are universal.

    The most universal {#blank#}6{#/blank#}(face) expression is, of course, the smile- its function is to show happiness and put people at ease. It does not always mean that we are {#blank#}7{#/blank#}(true) happy, however. Smiles around the world can be false {#blank#}8{#/blank#}(hide) other feelings like anger, fear or worry. There are unhappy smiles, such as when someone" {#blank#}9{#/blank#}_ (lose) face" and smiles to hide it. However, the general purpose of smiling is to show good {#blank#}10{#/blank#} (feel).

    E-commerce（电子商务）has changed the lives of people across the world. With fewer people {#blank#}1{#/blank#}(leave) home for shopping, physical stores are having a more {#blank#}2{#/blank#}(difficulty) time. It seems that one kind of physical store is not being hit—the convenience store.

    Convenience store sales in 2016 in China increased by 13 percent {#blank#}3{#/blank#}(compare) with that of 2015, according to China Daily. There are now{#blank#}4{#/blank#}(near) 100,000 convenience stores in China. And in Japan, there are 11,000 more convenience stores in 2017 than in 2010.

    Why are these 24-hour stores with {#blank#}5{#/blank#}average area of 110 square meters enjoying such rapid {#blank#}6{#/blank#}(develop)?

    One reason is that young people have grown into the habit of shopping at convenience stores, noted Convenience Store News. Convenience {#blank#}7{#/blank#}(store) not only have everything for daily use, but also fresh food like sushi, bread and salads,{#blank#}8{#/blank#} are all quite popular among young people.

    What's more, different {#blank#}9{#/blank#} supermarkets, many convenience stores sell things they make themselves, like bread and cakes. As these products can only{#blank#}10{#/blank#}(find) in these stores, many people go there just to buy them.

When we talk about paper, we think of newspapers and books. But there is some paper{#blank#}1{#/blank#}(use) in many other ways. Only half of{#blank#}2{#/blank#} world's paper is used for books and newspapers. Paper , on{#blank#}3{#/blank#}we usually write and draw , is very good for keeping you warm. You have perhaps seen homeless men asleep on a large number of newspapers. In Finland, it is sometimes -40℃ in winter. The farmers wear paper boots in the snow. Nothing could be{#blank#}4{#/blank#} (warm).

    Each year, more and more{#blank#}5{#/blank#} (thing) are made of paper. We have had paper cups and plates for a long time. But now we hear that chairs, tables, and even beds can{#blank#}6{#/blank#}(make) of paper. With paper boots and shoes, you can also wear paper hats, paper dresses, and paper raincoats{#blank#}7{#/blank#}you have used paper cups once, you throw them away and buy new{#blank#}8{#/blank#}(one).

    The latest use of paper seems to be paper houses. These are not small houses for children {#blank#}9{#/blank#}(play) in, but real, big houses for people to live in. You can buy a house with three rooms for about 500 dollars. You can put it up by yourself in a few hours{#blank#}10{#/blank#}you can use it for about five years.

    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.

    Have you ever awakened and felt like you couldn't move? If so, it {#blank#}1{#/blank#} (probable) scared you. You may have thought something terrible had happened to you. Actually, many people have this experience on a regular basis. It {#blank#}2{#/blank#} (call) sleep paralysis(瘫痪). {#blank#}3{#/blank#} it sounds scary, it is normal.

    Sleep paralysis happens when a person is falling asleep or waking up. As the person falls asleep, his or her body slows down. Usually the person's mind {#blank#}4{#/blank#}(relax) at the same time, but occasionally the mind stays awake{#blank#}5{#/blank#}(long) than the body. As a result, the person can be conscious, or aware, but have trouble moving or {#blank#}6{#/blank#}(speak). Sleep paralysis can also occur as you wake up. Fortunately, the condition rarely lasts for more than a few seconds. {#blank#}7{#/blank#}(move) and speech soon return to normal.

    Some people report unusual experiences during sleep paralysis. They may hear, see or feel things {#blank#}8{#/blank#}don't exist. At one time, people {#blank#}9{#/blank#}(think) that ghosts or monsters had entered the room and were holding them down，keeping them from moving. Science has helped us understand that such visions are actually part of sleep paralysis. Now we know that getting too little sleep, taking certain medications(药物), and changing your sleep schedule can cause sleep paralysis. This condition can be scary, but it's just a trick that you mind is playing {#blank#}10{#/blank#} your body.