Air is all around us. It is around us as we walk and play. From the time we were born air is around us on every side. When we sit down, it is around us. When we go to bed, air is also around us. We live in air. We can live {#blank#}1{#/blank#} food or water for a few days, but we can't live for more than a few {#blank#}2{#/blank#} (minute) without air. We take in air.

    When we are working {#blank#}3{#/blank#} running, we need more air. When we are {#blank#}4{#/blank#} (sleep), we need less air .We live in air, {#blank#}5{#/blank#} we can't see it. We can only feel it when it {#blank#}6{#/blank#} (move). Moving air is called {#blank#}7{#/blank#} (windy). How can we make air move? Here {#blank#}8{#/blank#} (be) one way. Hold {#blank#}9{#/blank#} open book in front of your face, close it {#blank#}10{#/blank#} (quick). What can you feel? What you feel is air.

—I made it by{#blank#}1{#/blank#}(I).

    Do you know Stephen Hawking? He's one of the most well-known{#blank#}1{#/blank#}（scientist）on space and time in the world. He was born in England in 1942. Hawking is {#blank#}2{#/blank#}（study）how the universe began and how it ends.

    When he studied math and science at Oxford University, he fell{#blank#}3{#/blank#}(serious) ill, which made him unable to speak or breathe. Till now, he can't move or feed{#blank#}4{#/blank#}(him). however, he has a wheelchair with {#blank#}5{#/blank#} special computer, with which he can communicate with others.

    {#blank#}6{#/blank#}he was facing all these difficulties, he refused to give up his hope of living. Because{#blank#}7{#/blank#} his illness, it was difficult for him to draw diagrams or to write. So he started{#blank#}8{#/blank#}(think) in pictures. With this new way of thinking, he is respected by people in the world.

    Once he{#blank#}9{#/blank#}(invite) to China to give lectures. His self-confidence and humorous conversations impressed us deeply.

    He once said, “When something unfair happens,{#blank#}10{#/blank#} is no need to worry about it! You just have to do the best in your own situation.”

    Many people like animals and take them as their pets, so pet hospitals are usually very busy. Kind persons {#blank#}1{#/blank#} love animals are needed to help in busy animal hospitals. Vets (兽医) will teach them {#blank#}2{#/blank#} to take care of the animals.

    Scientists think that pets will {#blank#}3{#/blank#} (probable) be much smaller {#blank#}4{#/blank#} people in the future will live in much smaller space. Scientists are now working on making very small farm animals, and the same thing might be done to make small cats and dogs.

    It {#blank#}5{#/blank#} (be) said that some day you might own a panther (豹) as a pet. Some scientists believe that they might have to start turning wild animals into pets, since this might be the only way to save them from {#blank#}6{#/blank#} (die) out.

    What about taking a robot as a pet? This may sound strange, {#blank#}7{#/blank#} it could become true. Robot dogs have been made {#blank#}8{#/blank#} (sell). They are like real dogs. These pets might become more and more popular in the future.

    Lots of people miss their pets when they are {#blank#}9{#/blank#} holiday. One hotel in Minnesota has solved this problem. It lends cats to their guests. Many expels believe more and more people will like this idea. It is very possible that in the future you will be able to order a pet, as well as room service, at {#blank#}10{#/blank#} hotel.

    Have you ever {#blank#}1{#/blank#} (hear) of the Stonehenge? Every year it {#blank#}2{#/blank#} (receive) more than 750, 000 visitors. People like to go to this place especially {#blank#}3{#/blank#}June as they want to see the sun {#blank#}4{#/blank#} (rise) on the longest day of the year.

    For many years, historians believed Stonehenge was a temple where ancient leaders {#blank#}5{#/blank#} (try) to communicate with the gods.

    {#blank#}6{#/blank#}, historian Paul Stoker thinks this can't {#blank#}7{#/blank#} (be) true because Stonehenge was built so {#blank#}8{#/blank#} (much) centuries ago. Other people believe the stones have a medical purpose. They think the stones can prevent illness and keep people {#blank#}9{#/blank#} (health).

    No one is sure what Stonehenge was used for. Some think it might be a burial place or a place to honour ancestors. Others think {#blank#}10{#/blank#}was built to celebrate a victory over an enemy.