【填句补文】We all have our own comfort foods. Interestingly, they may vary according to moods and gender. One study found that happy people seem to want to eat things like pizza, while sad people prefer ice cream and cookies. __________ Researchers also found that guys seem to prefer hot, homemade comfort meals, like steaks and casseroles. Girls go for chocolate and ice cream.

【阅读理解】The researchers also gave the students tests to tell whether the students believed that a math superstar had to be a boy. Then the researchers turned to the teachers To find out which teachers were anxious about math, the researchers asked the teachers how they felt at times when they came across math, such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt, for example, was probably anxious about math. According to the experiment, those teachers were probably anxious about math when they felt______.

【阅读理解】Most of us walk and carry items in our hands every day. These are seemingly simple activities that the majority of us don’t question. But an international team of researchers, including Dr. Richmond from GW’s Columbian College of Arts and Sciences, have discovered that human walking upright may have originated millions of years ago as an adaptation to carrying scarce, high-quality resources. Which of the following statements is NOT true according to the first two paragraphs?

【阅读理解】Gyorgy Buzsaki of Rutgers University and his colleagues analyzed the brain waves of sleeping rats and mice. Specifically, they examined the electrical activity emanating from the somatosensory neocortex(an area that processes sensory information)and the hippocampus, which is a center for learning and memory. The scientists found that oscillations in brain waves from the two regions appear to be intertwined. So-called sleep spindles(bursts of activity from the neocortex)were followed tens of milliseconds later by beats in the hippocampus known as ripples. The team posits that this interplay between the two brain regions is a key step in memory consolidation. A second study, also published online this week by the Proceedings of the National Academy of Sciences, links age-associated memory decline to high glucose levels. What is the result of the experiment with rats and mice carried out at Rutgers University?

【阅读理解】In 2006, Blackburn, of the University of California, San Francisco, and Greider, of Johns Hopkins University in Baltimore, shared the Lasker prize for basic medical research with Jack Szostak of Harvard Medical School. Their work set the stage for research suggesting that cancer cells use telomerase to sustain their uncontrolled growth. The research by Blackburn and Greider helps suggest the role of______.

【阅读理解】Writing for the content sites such as the Yahoo! Contributor Network also interests me. I’ve been trying creative writing, news, reviews and numerous lifestyle issues. And all of these topics have been of my own choosing. Then there is the opportunity to meet other writers. The Yahoo! Contributor Network has a wonderful in-house messaging system that allows its writers to communicate easily with one another. Not all your tries are rosy and easy when you write for a content site, but you will get much benefit if you try it. What is the benefit that the Yahoo! Contributor Network offers according to the author?

【阅读理解】Nobel Prize-winning author Toni Morrison deals specifically with the legacy of slavery in her book Beloved. The main character in this novel, a former slave called Sethe, lives in Ohio in the years following the Civil War, but she cannot free herself from her horrific memories. Through a series of flashbacks and bitter reminiscences, the reader learns how and why Sethe escaped from the plantation she had lived on; the fate of her husband, who also tried to escape; and finally, what happened to the child called Beloved. Morrison's scenes of torture and murder are vivid and strongly convey the desperation of the slaves and the cruelty of their owners. Beloved is set __________.

【阅读理解】Another problem the village people face is the destruction caused by wild animals such as the elephant. Elephants will walk through and destroy their crops, trees and huts in just one night. The cheap and easy solution is to soak rope in chili water and put it up around their fence and it will keep the elephants and other wild animals away.In the local village, Elephants _______.

【阅读理解】The structure of a family takes different forms around the world and even in the same society. The family's form changes as it adapts to changing social and economic influences. Until recently, the most common form in North America was the nuclear family, consisting of a married couple with their minor children. The nuclear family is an independent unit. It must be prepared to fend for itself. Individual family members strongly depend on one another. There is little help from outside the family in emergencies. Elderly relatives of a nuclear family are cared for only if it is possible for the family to do so. In North America, the elderly often do not live with the family; they live in retirement communities and nursing homes. The information in the first paragraph is presented mainly through _____.

【阅读理解】You play the lottery(彩票) each day and there are two options(选择): either you hit the jackpot and your life changes greatly or you lose and you have to start it from the very beginning. On the contrary, it’s well known that if you don’t take risks, you can’t win, so the best solution is always to think over and over again, to see what your decisions could represent in your future and only afterwards to make up your mind.While making a decision, you are advised to ________.