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          The adobe dwellings (土坯房)  {#blank#}1{#/blank#}  （build）by the Pueblo Indians of the AmericanSouthwest are admired by even  {#blank#}2{#/blank#} most modern of architects and engineers. In addition to their simple beauty, what makes the adobe dwellings admirable is their  {#blank#}3{#/blank#} (able) to “air condition” a house without  {#blank#}4{#/blank#}( use) electric equipment. Walls made of adobe take in the heat from the sun on hot days and give out that heat   {#blank#}5{#/blank#}( slow) during cool nights, thus warming the house. When a new day breaks, the walls have given up their heat and are now cold enough  {#blank#}6{#/blank#}(cool) the house during the hot day;{#blank#}7{#/blank#} the same time, they warm up again for the night. This cycle       (go) day after day: The walls warm up during the day and cool off during the night and are thus always a timely offset(抵消) for the outside temperatures. As {#blank#}9{#/blank#}  (nature) architects, the Pueblo Indians figured out exactly {#blank#}10{#/blank#}  thick the adobe walls needed to be to make the cycle work on most days.

    Do you like travelling? Staying {#blank#}1{#/blank#} (health) while {#blank#}2{#/blank#} (travel) can help to ensure your trip is a happy and enjoyable one. {#blank#}3{#/blank#} you are travelling abroad, here are the tips you need to make your trip much {#blank#}4{#/blank#} (easy):

    Make sure you have got signed passport(护照) and visas. Also, before you go, fill in the emergency information page of your passport! Make two copies of your passport identification page. This will help a lot if your passport {#blank#}5{#/blank#} (steal). Leave one copy at home with friends or relatives. Carry the other {#blank#}6{#/blank#} you in a separate place from your passport.

    Read the Public Announcements or Travel Warnings for the countries you plan to visit. Get yourself familiar with local laws and customs of the countries to {#blank#}7{#/blank#} you are travelling.

    Leave a copy of your itinerary(旅行日程) with family or friends at home so that you can be contacted in case of an emergency.

    Do not accept packages from strangers. Do not carry too much money or {#blank#}8{#/blank#} (necessary) credit cards. If we make enough{#blank#}9{#/blank#} (prepare), we will succeed. Have {#blank#}10{#/blank#} good time!

    The sun at the center of our Solar System is one of the big reasons for{#blank#}1{#/blank#}we're here today, but it can also be a big trouble from time to time. Coronal mass ejections(CMEs) (日冕物质喷发)can seriously damage human{#blank#}2{#/blank#}(communicate) systems.

    For years, researchers{#blank#}3{#/blank#}(attempt) to forecast and predict CMEs in {#blank#}4{#/blank#}hope that warnings could help prevent damage to electronics and the power grid (电网). As it turns{#blank#}5{#/blank#}that a CME is more like a sneeze. Professor Mathew Owens of the University of Reading explains, "The research team and I have found they are more like an{#blank#}6{#/blank#}(expand) dust cloud or sneeze."

    When the solar wind acts on the CME as it moves through space, it causes the shape and behavior of the energy explosion {#blank#}7{#/blank#}(become) unpredictable. "Therefore if we want to protect{#blank#}8{#/blank#} (we) from solar eruptions, we need to understand more about the solar wind, "Owens says.

    The research team suggests that solar wind readings should {#blank#}9{#/blank#} (include) in the forecasting and prediction of future CMEs. This study could help scientists more{#blank#}10{#/blank#}(accurate) assess the risk that the ejections bring to human technology and potentially help reduce the damage they cause.

    Jane felt sweet in the drive－through line at Heav'nly Donuts. Just the day before, a stranger ahead of her in line had {#blank#}1{#/blank#} (generous) paid for her coffee. "The gesture made such a big difference in my day," says Eileen. She had recently lost her job as a doctor's {#blank#}2{#/blank#} (assist), and money was tight. But Eileen {#blank#}3{#/blank#} (inspire) to pay the $12 bill of the family in the car behind hers. {#blank#}4{#/blank#} she didn't know was that her kindness would set off a chain reaction. In two and a half hours, fifty-five drivers paid for the order of the person behind {#blank#}5{#/blank#} (they). The doughnut shop's employees {#blank#}6{#/blank#} (see) this before. This Heav'nly Donuts, in fact, is known as a special place, the customers of {#blank#}7{#/blank#} are considered as the "best in the world". But, even so, the workers were {#blank#}8{#/blank#} (amaze) that the shop had more than doubled its previous record by the end of the day.

    Now {#blank#}9{#/blank#} (work) as a chemist, Jane visits Heav'nly Donuts every Saturday morning, picking up a coffee and paying for the order of the customer behind her. "Actually, I wish I {#blank#}10{#/blank#} (start) this deed much earlier." She said.