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Solar and wind power ¨ç are effective as reusable energy sources. However, harnessing tidal power may be a better option than ¨è either of them. Tidal turbines, for instance, are ¨é installing on the sea floor and do not take up valuable land space like solar panels do. Furthermore, wind flow, based on weather patterns, is erratic, ¨ê while it is much easier to predict ocean currents with accuracy.


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  • 2. ¿ì¸®¸»À» ¿µ¾î·Î Àß ¿Å±ä °ÍÀº?


    ¨ç ±×´Â Çѱ¹ ÀüÀï¿¡¼­ ÀüÅõÇÏ´Â µ¿¾È õ¿¬µÎ¿¡ °É·È´Ù.

    ¡æ He came down with smallpox while fought in the Korean War.

    ¨è ´ç½ÅÀº ÀÌ°ÍÀÌ ¾ó¸¶³ª °É¸®´ø »ó°ü¾øÀÌ ³»ÀÏ ÀÌÀü¿¡ ³¡³»¾ß ÇÕ´Ï´Ù.

    ¡æ You need to get this done before tomorrow however long it takes.

    ¨é ³» ±Þ·áÀÇ 10ÆÛ¼¾Æ®´Â ÀúÃà ¿¹±ÝÀ¸·Î ¸ð¾ÆÁø´Ù.

    ¡æ Ten percent of my paycheck are set aside into a savings account.

    ¨ê ¿ì¸®°¡ °­ÇØÁö´Â °ÍÀº °í³­À» °ßµð´Â °ÍÀ» ÅëÇؼ­ÀÌ´Ù.

    ¡æ It is from suffering hardships through that we gain strength.


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    1. ¹ØÁ٠ģ ºÎºÐ°ú Àǹ̰¡ °¡Àå °¡±î¿î °ÍÀ» °í¸£½Ã¿À.


    My weight fluctuates during periods of great stress, such as when I have important deadlines.

     


    • ¨ç deviates
    • ¨è changes
    • ¨é embezzles
    • ¨ê reigns

    2. ¹ØÁ٠ģ ºÎºÐ¿¡ µé¾î°¥ Ç¥ÇöÀ¸·Î °¡Àå ÀûÀýÇÑ °ÍÀ» °í¸£½Ã¿À.


    She is considered an extremely ______________ writer as she has published over 60 books in her lifetime.



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    1. ¹ØÁ٠ģ ºÎºÐ¿¡ µé¾î°¥ °¡Àå ÀûÀýÇÑ ´Ü¾î´Â?

     

    In 2014, scientists published a report stating that they had created a virus similar in deadliness and communicability to the Spanish flu strain, which killed some 50 million people in 1918. The new bug was built from fragments of avian flu viruses and then deliberately mutated. The result was an airborne strain that spread easily from one animal species to another. The (A) __________ for its creation was to determine the potential for existing viruses to become pandemic. In so doing, the team believed it could assess the probability that various strains have for becoming lethal to humans. However, some in the scientific world opposed the work, calling the (B) __________ exceedingly dangerous and foolhardy. They believed that the chance the virus might escape unintentionally was high, and that the likelihood of terrorists using the research to create their own bugs for biological warfare was huge.

     

         (A)             (B)

    ¨ç approval       illnesses

    ¨è rationale       experiments

    ¨é benchmark     viewpoints

    ¨ê incident        counterfeits   

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  • 2. ´ÙÀ½ ±ÛÀÇ ³»¿ë°ú ÀÏÄ¡ÇÏ´Â °ÍÀº?

    In the past, astronauts on the International Space Station had to wait months for a delivery to arrive via a supply flight if they requested a specific item from Earth. Now, thanks to 3D printers, the wait is over. Recently, NASA engineers received a request over the radio for a socket wrench. They responded by designing one using 3D printer software and then emailing the ISS the blueprint, a method that proved successful. Armed with this improved self-reliance, it is anticipated that future astronauts will be better able to maintain their equipment, and thereby uphold operations for longer periods of time.

    ¨ç Astronauts on the ISS designed and printed a wrench using a 3-D printer.

    ¨è A request for a socket wrench was emailed to NASA by an ISS astronaut.

    ¨é The advent of 3-D printing in space could lead to more sustainable missions.

    ¨ê The more dependent astronauts are on NASA, the longer the space missions will last.


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