“It was my son Daniel's 8th birthday. No one called to say they were coming to his birthday party. Both myself and his father were heartbroken (it's happened before). He absolutely adores the police and calls all of you his Super Heroes. He is autistic, so making friends is extremely difficult for him. His father (Dan) and I remembered the past 2 years of no one ① showed up for his birthday parties, he would spend the day crying that he had no friends. We could not let that ② happen again. So when it came closer to the day of his party and nobody called, we decided to be proactive and bring invitations to the police department. We were not ③ given any promises. We just hoped. Daniel had no idea. While playing with his cousin Adam at McKibben Park he saw a large line of police cars ④ coming down the road. He was so excited! His favorite friends came to his party. He is still talking about it ⑤ being the best birthday ever! Thank you North Port Police Department. You made my son's birthday extra special with his favorite super heroes!" 

① Brown must have known he was in trouble. 

    → It is highly likely that Brown knew he was in trouble.

② I forgot adding vanilla to the cake. 

    → I was supposed to add vanilla to the cake, but I didn't.

③ The goalkeeper says, if required, he is ready to return to the game. 

    → The goalkeeper says he can play again if his team asks for him.

④ Having landed on the island, the three fishermen split up. 

    → After they had landed on the island, the three fishermen split up.

⑤ We've stopped using plastic bags in supermarkets. 

    → We used to use plastic bags in supermarkets, but not any more.

As we look toward a future of more renewable energy dependency, having reliable energy storage to back up wind and solar will be necessary for everything to run smoothly. Lithium-ion batteries are great for gadgets and even cars, but on a larger scale they're too expensive and aren't very environmentally friendly. Many researchers believe sodium-ion batteries are the answer because sodium is cheap and eco-friendly, but the major obstacle to advancing these batteries has been a very short life. Researchers at the University of Maryland have developed a solution to this problem by using a paper-thin layer of wood fibers. The wood is able to withstand the swelling and contracting of the anode and allows the battery to survive more than 400 charge cycles. At the end of the charging cycles, the wood is wrinkled, but still intact. Computer models show that those wrinkles relax the stress in the battery during charging and recharging, creating a flexible and long-lasting battery.

Hunger is, first and foremost, a natural feeling. It's our body's way of telling us ① that we need to consume food for energy. It's also an unpleasant feeling ② that many people give for the reason why their diets fail. It seems that science has now found a way to control a person's feelings of hunger, which could have significant repercussions for people trying to live a healthier way of life. 

A recent study, published in the journal Nature Neuroscience, describes how researchers have located a component of the brain ③ that inhibits and controls eating in mice. More specifically, a group of cells in the hypothalamus, called "AgRP neurons," are those ④ that monitor our energy levels and cause sensations of hunger. Until now, scientists were unclear about which 'satiety' neurons the AgRP neurons target in order to achieve sensations of hunger. Eventually it was discovered that a tiny group of MC4R-expressing neurons ⑤ that exists within the hypothalamus is the key to all of these activities.

The sociobiologist E. O. Wilson, from his studies of ants, showed how it was often an evolutionary advantage for a single animal to die to protect its relatives, since they too shared the same genes. Moreover, it was also sometimes an advantage for an individual animal not to have offspring directly, but instead to devote its life to taking care of siblings or cousins, which again shared the same genes. In this way, ultimately, that animal's own genes would survive and be passed on. I ant societies, self-sacrificing behavior could sometimes become an evolutionary advantage. Survival of the fittest didn't necessarily mean the biggest and strongest, but the one which was best able to make sure that its genes were passed on. 

한가람고 2학년 학교 시험은 일단 교과서와 학교자체교재에서 86%가 출제되므로 학교 내신범위에 속한 지문들의 본문암기가 기본적으로 필요하고, 어법과 어휘에 대한 출제 문제들의 난이도가 비교적 높으므로 평소 기본 어법과 어휘 학습이 철저히 이루어져서 어법은 정확한 개념 이해를 통해 응용력을 길러야 합니다. 어휘는 반의어, 유의어, 파생어 등 단어와 단어 사이의 관계에 대한 학습도 게을리 하지 않는 것이 중요하며 외부지문 출제에 대비해서 수능 기출문제와 모의고사, 특히 최근 3년간의 고3 모의고사 문제들을 빠르게 섭렵하는 것이 2학기 내신대비 성공의 관건이 될 것으로 보입니다.