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Read the following article and select the best answer. Article: Success is everybody's dream. But what is the key to success? How can you be successful? I think we should measure success based on how much we give rather than how much we receive. Fortunately, it also works nicely the other way around since those who give more almost always will also receive more. So how do you pave your way to success? How do you become more successful? The answer is amazingly simple: the key to success is making yourself as useful as possible to others. Here are some ideas on how to do it. 1. Be observant of needs To be useful to others, you should always be aware of even the slightest clues of needs. The more sensitive you are to the needs of others, the more appreciative people will eventually become. The best plan is being able to a need before the other people are even aware of it. 2. Find solutions to the needs Now that you are aware of needs, the next step is finding solutions to them. The solutions you offer should be as useful as possible. To be able to do so, there is no other way but to continuously build your own value. It is from the value you have that you could give value to others. 3. Be proactive to help Do not wait for the other person to ask for your help. Be proactive. Give your help even before they ask. 4. _ What matters is not only the solution you offer, but also the way you deliver it. Being sincere means being glad to help others without expecting anything in return. Make it your joy to give something to others. People can somehow distinguish whether or not you are sincere. 5. Go the extra mile Doing the above four steps is good, but add this one if you can: give more than expected. First, give what is expected, and then add a little more. If you do the above four steps people will be appreciative, but if you add this one step they will be impressed. Question: What does the passage mainly talk about? - How to measure success accurately. - How to make your dreams come true. - Giving is more important than receiving. - How a person can be most useful to others.
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How a person can be most useful to others.

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Read the following article and select the best answer. Article: Next time you raise an eyebrow at the views of your partner, friend, sibling or colleague, remember they could be helping to make you smarter. New research shows that intelligence is not fixed but can be boosted throughout adulthood by family members, bright mates and intellectually stretching careers. The study challenges the commonly held belief that intelligence is static by the age of about 18. Current scientific consensus suggests that intelligence is controlled by genes, with environmental factors such as schooling and nutrition playing a partial role up to this age. After this point, IQ scores stabilize . But James Flynn, professor of political studies and psychology at the University of Otago in New Zealand, argues that people can "upgrade" their own intelligence throughout their lives. He believes intellectual stimulation from others is crucial as the "brain seems to be rather like a muscle - the more you use it, the stronger it gets". However, the opposite is also true - so people sharing a home or workplace with those who are intellectually challenged risk seeing their IQ levels fall as a result. He found the "understanding quality" of a family changes the IQs of all members, especially children. It can "lift" or hold back, depending on the "gap between their brightness and that of their siblings and parents". A bright ten-year-old with brothers and sisters of average intelligence will suffer a five to ten point IQ disadvantage, compared to a similar child with equally bright siblings. However, children with a low IQ could gain six to eight points by having brighter siblings and special educational treatment to help pull them up. Professor Flynn also concluded that although genetics and early life experiences determine about 80 percent of intelligence, the remaining 20 percent is linked to lifestyle. This means that people can raise their IQ, or allow it to fall, by ten points or more. Therefore, the best way to boost IQ level is to mix with bright friends, find an intellectually challenging... Question: James Flynn holds the belief that _ . - intellectual stimulation from others makes the brain work better - people should avoid working with those intellectually challenged - one's IQ could be held back if he has bright brothers or sisters - the IQ of children is least influenced by the understanding level of a family
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intellectual stimulation from others makes the brain work better

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Read the following article and select the best answer. Article: You probably know that frogs hop ( ). But did you know that there's a small frog in the Pacific Northwest that bellyflops ? It's called a tailed frog. Dr.Rick Essner, who has been studying tailed frogs for the past few years, says, " I've looked at thousands of jumps and have never seen them land on their feet like other frogs." Most of the time, tailed frogs land on their stomachs and then bring their back legs in to prepare for another jump. Essner forst noticed these frogs because of the way they swim. Other frogs kick both of their back legs at the same time. But when a tailed frog swims, it pushes first with one leg and then the other. To try to find out why tailed frogs bellyflop, Essner and other scientists collected and filmed different kinds of frogs. They found that all of the frogs start their jumps the same way: they hold out their legs. The change comes in the landing. Tailed frogs can't move their back legs as quickly as other frogs do. Maybe they don't need to. Tailed frogs live around water and quickly jump into the water to escape danger. Early frogs developed around watery areas and could jump quickly into the water to escape danger. Scientists think those frogs blended in with (...) the green plants on the side of the rocky rivers, just like today's tailed frogs. "Iwould guess that other animals would have problems _ them, " explains Essner. When other animals find those early frogs, the frogs could jump into the river. They didn't need to continue hopping. Tailed frogs and other kinds of frogs went their own ways about 200 million years ago. Tailed frogs stayed by rivers. Other kinds of frogs moved to places where new hopping skills allowed them to survive. Question: Why do tailed frogs bellyflop? - They have never left the water to live . - They have trouble in holding out their legs - Their back legs can't catch up while jumping.. - Their front legs develop better than the back ones.
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Their back legs can't catch up while jumping..