Article: Since the beginning of history, man has been attracted by the idea of living forever, of winning the fight against death and disease. So far, this has only remained a dream. Many people have wondered whether it would be possible to find a way to preserve human bodies, and what would be the best way. It has long been known that meat of fruit can be kept fresh for long periods by freezing; in ancient China, for example, food was stored with ice to keep it fresh. This method could also be useful for preserving humans. However, most living beings that exist under warm conditions die when frozen. This is because of the harmful effects of freezing ice crystals , which not only are larger than the volume of the water originally in the cells, but also form sharp cutting shapes that harm the cells. In the 1940s Dr B.J. Luyet and a group of scientists in England were working on the problem of freezing cells without damaging them. Since the harm caused by ice crystals was the main cause of damage, Luyet suggested removing some or all of the water from the cells before freezing them. Using living cells form chicken, Luyet and his assistants discovered that they could partly dry the chicken cells, using a mixture of the white part of an egg and glycerin . Some success was obtained. The chicken cells were dried, frozen for a period of time, and then carefully unfrozen. Almost all the cells recovered when they reached normal temperatures. Since then, the cooling of whole animals to a temperature far below freezing point for later unfreezing has become more of a possibility, and the glycerin method would probably be used to accomplish this. When this can be done completely and successfully, science will have moved much closer to its aim of freezing and storing incurable patients until the day they can be cured. Question: According to the text, freezing _ . Yes or no, is the answer "is harmful to living cells"?
Yes

Article: According to the US Geological Survey, about seven million earthquakes strike worldwide every year--but fortunately, only about 1500 of these are of a magnitude of 5 or greater on the Richter scale. Certain areas, such as California and Japan, are more _ earthquakes than others. Although the chance of being caught in "The Big one" is remote, it's wise to be prepared if you live in a region where earthquakes are common. Educate your family about earthquakes before a big one strikes. For example, they need to know to take shelter in a doorway or under a strong object if indoors, and never to run outdoors if they are inside. If outside, they need to know to stay away from power lines and buildings where objects could fall. Teach family members how to turn off gas or water lines or electrical power that may need to be shut off after a quake if severe damage occurs. Develop a plan. Where will your family meet in the event of a disaster? What if some people are at work or school? How will you know if they are safe? Where will you all meet up? Pack a preparedness kit and keep it in a safe location. In a major earthquake, it's possible that you won't be able to get into your house. Keep supplies in your car trunk or an outside storage shed if possible. Pack whatever your family is likely to need, enough for three days to a week, including food, water, medication, first aid and personal hygiene supplies, flashlights, a portable radio, blankets, clothes and shoes, cash, or camp stove, candles, matches or lighters, and a whistle. Consider earthquake insurance for your home if you live in an earthquake-prone area. Regular homeowner's insurance doesn't cover earthquake damage. Question: According to the passage, if you are outside in an earthquake, you should _ . Yes or no, is the answer "avoid power lines"?
No

Q: Article: Marriages improve after children grow up and move out,according to an academic study, which suggests an "empty nest" is not always a bad thing. Popular wisdom has it that parents' relationships may suffer once their young fly the coop, because they feel they have lost their purpose in life.However, a new study by researchers at the University of California, Berkeley, has found that many couples actually feel happier when their children leave home because they are able to enjoy spending time together. In total,123 American mothers born in the 1930s were tracked for 18 years and asked to rate their satisfaction levels shortly after marrying, when they were bringing up babies, once their children reached their teenage years and finally at age 61, when almost all had "empty nests". Although not all said they were happier in general, most claimed their marriages had improved since their children had left home. Researchers believe this is not just because the spouses were spending more time together, but because they were able to enjoy each other's company more. One of the participants in the study,which is published in the journal Psychological Science,said:"Once the kids grow up...there's some of that stress removed...that responsibility removed,so things are a little more relaxed." Psychologist Sara Gorchoff,who carried out the investigation,said: "The takehome message for couples with young children is 'hang in there'." Her coauthor Oliver John added:"Don't wait until your kids leave home to schedule quality time with your partner." However, Dr Dorothy Rowe,from the British Psychological Society,said the effects of living in an "empty nest" will depend on the parents' relationship with their children."If you're just waiting for them to leave home so you can get on with your life,then of course you'll be pleased to see them go," she said, "But if you've built your life around your children you'll be terribly lonely.For some parents,their world falls apart when their children leave." Question: The author of the passage tends to agree that _ . Yes or no, is the answer "parents should schedule quality time with each other before kids leave home"?
A: Yes

*Question*
Article: Even with the multimedia excitement of the web. Electronic Mail, email, is the most frequently used application of the Internet. Many people who have a chance to use the Internet at school, home, and work. They use the Internet for no other purposes than to send or receive emails. It's all very easy. You prepare the message, log onto the Internet, and send it. The message first goes to your Internet Service Provider's mail server, which in turn sends it to the recipient's mail server. On the way your message may go through several servers, each reading the name in order to send it to the right server. The message then remains in the recipient's mail email server until he requests it by "checking his mail". The benefits of emails are obvious: mostly it's quick. Also, many people feel that the rules for regular mails don't apply to email, making it less formal, which in turn make email easier to write and send. It's not just friends and coworkers that are receiving emails. Wherever you look, the Web is providing email addresses. This has made communication between strangers easier than ever. You can read an interesting article online and immediately send the author an email. Anyone who posts his email address on a Web page is saying he wants to receive email. There are places you can go if you don't know someone's email address. Check out Bigfoot, the Internet Address Finder, or Netscape's Email Directories for more information. Email is one of the services offered by your Internet Service Provider--a service that you're applying for every month. Question: We can infer from the passage that _ . Yes or no, is the answer "many people use the Internet only for the purpose of sending and receiving email"?
**Answer**
No