The first step in exercising for most people is determining whether or not they should. This is particularly true with anyone over thirty-five, especially if they have been heavy smokers. Likewise, young adults who have been very inactive should proceed slowly and with caution. A physical evaluation from a physician is recommended, preferably one that includes an exercise-stress test. While a person is exercising, a stress test detects cardiovascular problems that might not show up when the body is at rest. This is done by monitoring blood pressure, pulse rate, oxygen consumption, and the heart's electrical activity while exercising. Whatever exercise program is selected, it is important to start with warm-up periods. These should include stretching exercises, jumping jacks, or active walking. The idea is to increase heart rate and circulation slowly without placing a sudden strain on the heart or the muscles that are starting to work. The next phase in developing an exercise program is to determine the amount of exercise that is enough to condition the muscles and cardiovascular system without excessively exhausting the body. This involves taking one's pulse and finding one's target zone. This target zone, or safe-training pulse rate, is established by subtracting one's age from 220 and then taking 60 percent to 80 percent of that total. If you are just starting to exercise, 60 percent is recommended; 80 percent is recommended if you are already in good condition. Who is the intended reader of the passage? A) a social worker B) a physician who is in charge of physical checkups C) any would-be sportsman D) anyone who wants to take up exercise
D
(Question)
Living in the desert is really hard! With less than 10 inches of rainfall a year, deserts are dry all year round. Lots of heat from the sun and a shortage of water are just a few of the challenges facing desert animals. Deserts are homes to many animals and plants. Few large animals have got used to life in the desert because their size makes it difficult to find shelter from the heat and they can't store water. In order to survive, desert animals have developed a number of ways to live in their special habitat. The most common way is staying under plants or rocks or digging underground in the heat of the day. And many desert animals stay in shelter during the day and hunt at night when it is cool. Some animals get the water they need from the insects, plants and seeds they eat, and do not need to drink. They do not have sweat glands and pass only small amount of waste water. Some animals develop their own ways of surviving in deserts. The Thorny Devil is a kind of lizard that lives in Australian desert areas. It has a body that channels raindrops directly into its mouth when it rains. Water-holding frogs spend most of the year underground in Australian desert areas, and develop a sort of cocoon that enables them to store water to keep them going through the dry times. When it rains, they come out to lay their eggs in ponds. The eggs hatch within days and develop quickly, before the water dries out. Which of the following is not a source of water to some desert animals? A) Insects B) Seeds C) Plants D) Sweat
(Answer)
D
Ques: Drinking wine in moderation improves the IQ and may boost mental agility in old people,according to Japanese researchers. A study of the effects of alcohol on the middle aged and elderly found the average IQ of men who drink wine (whether made from grapes or rice) was 3.3 points higher than that of men who do not imbibe. Similarly,the IQ of women drinkers showed an improvement of 2.5 points over their teetotal sisters.The findings are part of an ongoing study by Japan's National Institute for Longevity into the links between human intelligence and what we eat and drink. The tests measured general knowledge,powers of judgment and concentration in drinkers and non-drinkers over 40,all living in Aichi prefecture,central Japan,and sharing the same income level-roughlyPS50 000 a year--and educational background.All were university graduates. But while wine-drinkers appeared to be brighter,the same was not true of those who drank deer,shochu (a local gin) and whisky. "The benefits of wine and sake (rice wine) in raising IQ could be due to substances they contain,such as polyphenol,which are believed to slow the ageing process," Hiroshi Shimokata,head of epidemiology research,said. It was premature to conclude,he added,that drinking wine or sake slowed the deterioration of brain functions in the elderly,or warded off senility.The research does,however,suggest that this is one way to stay mentally alert longer. But there is a sobering caveat:drinking too much may make you dimmer."People who drink more than 540 milli-litres (a little over a pint) of sake or wine a day had lower intelligence quotients than those who did not drink at all,"Hiroshi Shimokata said."Moderation is very important." From the text,it seems that we can conclude _ . A) the more wine we drink,the brighter we are B) the less wine we drink,the brighter we are C) drinking wine less than 540ml a day,we'll become dimmer D) drinking wine in moderation,we'll become brighter
Ans: D
Ques: A new Barbie doll was presented at a toy fair in Germany.It has been modelled after the German Chief Minister Angela Merkel as part of 50th birthday celebrations for the popular toy.It wears a hairstyle and a dark coat like Merkel wears. Lim Ding Wen, a nine-year-old pupil in Singapore, wrote some programs for Apple's popular iPhone.His painting program named "Doodle Kids" has been downloaded over 40,000 times in two weeks. Barack Obama and First Lady Michelle Obama answered questions from some pupils in Washington.During his surprise visit, Obama told the children, "We are just tired of being in the White House" On February 5, China declared a top level emergency in the drought-hit provinces.The drought, which has rarely been seen in prefix = st1 /China's history, has left many people without proper drinking water and is affecting large amounts of crops. Big flames burned entire towns in southeastern Australia and some locals in their cars, making it the country's deadliest fire disaster.Officials believed arson, which means criminal act of setting fire to possessions in order to cause destruction, may be behind some of the fires. At the beginning of February, snow storms paralyzed(...) parts of London, costing businesses millions of pounds.The snow storms are the worst Britainhas seen in 18 years. Some of the big fires in Australia may result from the fact that some people _ . A) started the fires on purpose B) were smoking in their cars C) were killed by the big fire D) attempted to destroy Australia
Ans:
A