【正文】 re moving to tighten laws by adding new regulations for opting out. But no one does enough to limit exemptions.Parents ought to be able to opt out only for limited medical or religious reasons. But personal opinions? Not good enough. Everyone enjoys the lifesaving benefits vaccines provide, but they’ll exist only as long as everyone shares in the risks.63．The first two paragraphs suggest that ____________.A．a(chǎn) small number of measles cases can start a dangerous trendB．the outbreak of measles attracts the public attention C．a(chǎn)ntivaccine movement has its medical reasonsD．information about measles spreads quickly64．Herd immunity works well when ____________.A．exemptions are allowedB．several vaccines are used togetherC．the whole neighborhood is involved in D．new regulations are added to the state laws65．What is the main reason for the eback of measles?A．The overuse of vaccine.B．The lack of medical care.C．The features of measles itself.D．The vaccine optouts of some people.66．What is the purpose of the passage?A．To introduce the idea of exemption.B．To discuss methods to cure measles.C．To stress the importance of vaccination.D．To appeal for equal rights in medical treatment.D Hollywood’s theory that machines with evil(邪惡) minds will drive armies of killer robots is just silly. The real problem relates to the possibility that artificial intelligence(AI) may bee extremely good at achieving something other than what we really want. In 1960 a wellknown mathematician Norbert Wiener, who founded the field of cybernetics（控制論）, put it this way: “If we use, to achieve our purposes, a mechanical agency with whose operation we cannot effectively interfere(干預(yù)), we had better be quite sure that the purpose which we really desire.” A machine with a specific purpose has another quality, one that we usually associate with living things: a wish to preserve its own existence. For the machine, this quality is not inborn, nor is it something introduced by humans。70Refund Policy—the subscription can be cancelled within 28 days and you can get your money back.59. Why is TOKNOW a special magazine?A. It entertains young parents.B. It provides serious sdvertisements.C. It publishes popular science fictions.D. It bines fun with plex concepts.60. What does TOKNOW offer its readers?A. Online courses.B. Articles on new topics.C. Lectures on a balanced life.D. Reports on scientific discoveries.61. How much should you pay if you make a 12mouth subscription to TOKNOW with gift pack from China?A. 163。A It was a cold March day in High Point, North Carolina. The girls on the Wesleyan Academy softball were waiting for their next turns at bat during practice, stamping their feet to stay warm, Eighthgrader Taylor Bisbee shivered(發(fā)抖) a little as she watched her teammate Paris White play. The two didn’t know each other well —Taylor had just moved to town a month or so before. Suddenly, Paris fell to the ground,“Paris’s eye rolled back,” Taylor says. “She started shaking . I knew it was an emergency.” It certainly was, Paris had suffered a sudden heart failure. Without immediate medical care, Paris would die. “Does anyone know CPR?” CPR is a lifesaving technique. To do CPR, you press on the sick person’s chest so that blood moves through the body and takes oxygen to organs. Without oxygen the brain is damaging quickly.Amazingly, Taylor had just taken a CPR course the day before. Still, she hesitated. She didn’t think she knew it well enough. But when no one else came forward, Taylor ran to Paris and began doing CPR, “It was scary. I knew it was the difference between life and death,” says Taylor.Taylor’s swift action helped her teammates calm down. One girl called 911. Two more ran to get the school nurse, who brought a defibrillator, an electronic devices(器械) that can shock the heart back into work. Luck stayed with them: Paris’ heartbeat returned.“I know I was really lucky,” Paris say now. “Most people don’t survive this. My team saved my life”Experts say Paris is right: For a sudden heart failure, the single best chance for survival is having someone nearby step in and do CPR quickly. Today, Paris is back on the softball team. Taylor will apply to college soon. She wants to be a nurse. “I feel more confident in my actions now,” Taylor says. “I know I can act under pressure in