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w: that occurs when you’re at the wheel, you travel 60 feet in that second. the report was that if he would have hit 3 inches to the left, he would have probably been dead. you know, 3 inches could have changed everything. m: reaction time, alertness, concentration, all slows down by insufficient sleep. the federal department of transportation estimates teenage drivers cost more than half of all fall-asleep crashes. question 1: what is the general topic of this conversation? question 2: what in melatonin? question 3: which of the following statements is true about melatonin? question 4: according to the conversation, what problem do adolescents have in high school? question 5: several things are mentioned in the conversation that are affected by insufficient sleep. which of the following is not one of them? questions 6 to 10 are based on the follow news: new york: stock sales by america’s corporate chieftains exceeded purchases last month by the widest margin since 1987, suggesting they do not share the confidence of investors who sent the standard & poor’s 500-stock index to a 6-year high. executives including microsoft corporation’s bill gates, google incorporated’s eric schmidt, and kohl’s corporation’s william kellogg in aggregate sold $63.18 of shares for every $1 they bought in november, an analysis by bloomberg of data from the washington service research firm showed. that’s the highest since at least january 1987. stocks have rallied even as analysts forecast that a streak of average profit growth of above 10 percent for s&p 500 companies will end this quarter. the us economy expanded at a 2.2% annual rate in the 3rd quarter, down from a 5.6% pace in the first quarter. cape canaveral, united states: after a fiery ascent that turned night into day, space shuttle discovery and its crew headed to the international space station yesterday to rewire the orbital outpost. astronauts in orbit yesterday inspected the shuttle for potentially critical heat shield damage. discovery will dock with the space station today, and the intricate work will begin. three complicated spacewalks are planned to rewire the space station from a temporary to a permanent power source. nasa had to beat the odds to get off the launch pad on saturday in the first nighttime launch in four years. after only a 30 per cent chance of good weather earlier in the day and a 2-hour delay in fuelling, discovery streaked through a moonless sky at 0147 gmt yesterday. united nations: the head of the un Office on drugs and crimes yesterday called for a global political decision to fight against corruption, and urged world governments to set up task forces. “people around the world must do more to fight corruption. we need a political decision.” antonio maria costa told the first session of a conference of parties to the united nations convention against corruption. the convention, the first legally binding international tool to
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