单选题He was in a hurry and left things in a real ______.

单选题After lunch I felt ______ enough to ask my boss for a rise in my weekly wages.

单选题Being an intelligent boy, he ______ such a foolish mistake.

单选题 In a purely biological sense, fear begins with the body's system for reacting to things that can harm us—the so-called fight-or-flight response. 'An animal that can't detect danger can't stay alive,' says Joseph LeDoux. Like animals, humans evolved with an elaborate mechanism for processing information about potential threats. At its core is a cluster of neurons(神经元) deep in the brain known as the amygdala(扁桃核). LeDoux studies the way animals and humans respond to threats to understand how we form memories of significant events in our lives. The amygdala receives input from many parts of the brain, including regions responsible for retrieving memories. Using this information, the amygdala appraises a situation—I think this charging dog wants to bite me—and triggers a response by radiating nerve signals throughout the body. These signals produce the familiar signs of distress: trembling, perspiration and fast-moving feet, just to name three. This fear mechanism is critical to the survival of all animals, but no one can say for sure whether beasts other than humans know they're afraid. That is, as LeDoux says, 'if you put that system into a brain that has consciousness, then you get the feeling of fear.' Humans, says Edward M. Hallowell, have the ability to call up images of bad things that happened in the past and to anticipate future events. Combine these higher thought processes with our hardwired danger-detection systems, and you get a near-universal human phenomenon: worry. That's not necessarily a bad thing, says Hallowell. 'When used properly, worry is an incredible device,' he says. After all, a little healthy worrying is okay if it leads to constructive action—like having a doctor look at that weird spot on your back. Hallowell insists, though, that there's a right way to worry. 'Never do it alone, get the facts and then make a plan,' he says. Most of us have survived a recession, so we're familiar with the belt-tightening strategies needed to survive a slump. Unfortunately, few of us have much experience dealing with the threat of terrorism, so it's been difficult to get facts about how we should respond. That's why Hallowell believes it was okay for people to indulge some extreme worries last fall by asking doctors for Cipro(抗炭疽茵的物)and buying gas masks.

单选题We need more men of culture and enlightment because we have too many ______ among US.

单选题According to the passage, the smart highway technology is aimed to______

单选题The new law allows you to ______ payment if you think a bill is incorrect. A. withhold B. withdraw C. wither D. withstand

单选题People sometimes succeed in timely avoiding danger because______.

单选题 Questions2-5 are based on the conversation you have just heard.

单选题The first two assumptions made about the ______ of TV were dead wrong: that it would bury radio and it would be a threat to movies.

单选题Speaker A: 1' d like to book a ticket for next Monday morning to NewYork.Speaker B:______

单选题English is used in ______ ways by people all over the world.

单选题It is not clear whether the increase in reports is stemmed from greater human activity or is simply the result of more surveys.

单选题Some of these studies (have shown) that although some people have trouble (to fall asleep), others have an (equally) difficult time (waking up).

单选题Factors leading to the crisis included poor regulation, mismanagement and {{U}}deception{{/U}} in the industry, and competition from other types of financial firms.

单选题As I type these lines, my daughter, Harriet, who is 14, is on her iPhone skipping among no fewer than eight social media sites. My son, Penn, who is 15, will be asleep for hours yet. He was 1 all night with a friend playing two video games, in a jag fueled by his favorite foodlike 2 . I like that my kids are comfortable and alert in the wired world. But increasingly I am 3 for them. It"s more 4 every day that screens have gradually stolen them from themselves. My wife, Cree, and I have 5 them to drift quite distantly into the online world, and we fear our casualness has been a 6 . Each summer Cree and I resolve to 7 things back. This is 8 we draft rules for a new school year, strictures like: no laptops in bedrooms during the week; homework before screen time; no electronics after 10 p.m.. These rules invariably begin to 9 by Day 3. By Day 4, there is pleading, and the discreet slamming of doors. By Day 8, no one is sure what the 10 are anymore. We"re back where we started, and plump with fear. This year it 11 to me we needed help. So I sat down with a new book that 12 assistance, and understanding. It is The Big Disconnect: Protecting Childhood and Family Relationships in the Digital Age, whose primary 13 , Catherine Steiner-Adair, is a clinical psychologist who teaches at Harvard Medical School. Her book is 14 on thousands of interviews, and it can be eloquent about the need to ration our children"s computer time. Here the author has pinned me. I like to think I"m a good father, perhaps even casually 15 in my better moments, 16 there is zero doubt that, without my iPhone in my palm, I feel I lose something since I"m fairly 17 . I must change my life a bit. Cree and I are still hammering out our kids" computer rules. We are trying to 18 in mind that we"re not our kids" best friends; we"re their 19 . And we are 20 if there"s an app for fortitude.

单选题 The lives of very few Newark residents are untouched by violence: New Jersey's biggest city has seen it all Yet the murder of three young people, who were forced to kneel before being shot in the back of the head in a school playground on August 4th, has shaken the city. A fourth, who survived, was stabbed and shot in the face. The four victims were by all accounts good kids, all enrolled in college, all with a future. But the cruel murder, it seems, has at last forced Newarkers to say they have had enough. Grassroots organizations, like Stop Shootin’, have been flooded with offers of help and support since the killings. Yusef Ismail, its co-founder, says the group has been going door-to-door asking people to sign a pledge of non-violence. They hope to get 50000 to promise to "stop shootin’, start thinkin’, and keep livin’." The Newark Community Foundation, which was launched last month, announced on August 14th that it will help pay for {{U}}Community Eye{{/U}}, a surveillance (监视) system tailored towards gun crime. Cory Booker, who became mayor 13 months ago with a mission to revitalize the city, believes the surveillance program will be the largest camera and audio network in any American city. More than 30 cameras were installed earlier this summer and a further 50 will be installed soon in a seven-square-mile area where 80% of the city's recent shootings have occurred. And more cameras are planned. When a gunshot is detected, the surveillance camera zooms in on that spot. Similar technology in Chicago has increased arrests and decreased shootings. Mr. Booker plans to announce a comprehensive gun strategy later this week. Mr. Booker, as well as church leaders and others, believes (or hopes) that after the murder the city will no longer stand by in coldness. For generations, Newark has been paralyzed by poverty— almost one in three people lives below the poverty line—and growing indifference to crime. Some are skeptical. Steve Malanga of the conservative Manhattan Institute notes that Newark has deep social problems: over 60% of children are in homes without fathers. The school system, taken over by the state in 1995, is a mess. But there is also some cause for hope. Since Mr Booker was elected, there has been a rise in investment and re-zoning for development. Only around 7% of nearby Newark airport workers used to come from Newark; now, a year later, the figure is 30%. Mr Booker has' launched a New York-style war on crime. So far this year, crime has fallen 11% and shootings are down 30% (though the murder rate looks likely to match last year's high).

单选题When traveling, you are advised to take traveler's checks, which provide a secure ______ to carrying your money in cash.