Read the article and select the best answer. Article: In a world today of immense technology, population growth and economic flourish, planning for future residential and commercial developments needs careful analysis with well thought through assumptions about effects on the environment and the people of the community. One example of a growing city is Wooster, Ohio, my place of residency, Wooster in the last five years has grown considerably in population, leading to a growth in commercial business. Surrounded by farmland, Wooster's planning commission chose to extend the community into these farm areas in the form of residential and commercial areas. Picture this--corn fields, old trees, clean air, country roads, and wildlife are all part of the area. Within four years, the people living on this farm step outside on their front porch to view an extensive shopping center containing Wal-Mart, McDonald's, Wendy's, TCBY, and a Cinemark movie theatre. The once quiet road is now a city street with traffic lights, busy with automobiles day and night. The air smells of car exhaust and fast food. Some destruction of farmland is unavoidable when a city expands. Instead of expanding outward, planning commissions should consider interior _ of a city. Tearing down unusable buildings could remodel many areas inside the city. In addition, commercialized buildings could extend upwards to avoid unnecessary use of land. Environmentally, commercial expansion is harmful to the land. Besides forms of pollution, wildlife, including both plants and animals, is put at risk. A planning commission could have realized the benefits of environmental protection. Why not preserve the beauty and naturalness of the land while at the same time allowing for growth? With a steady growth of population and the need for more homes and more workplaces, many problems arise when planning for the future. The hillsides, fields and animal habitats need to be preserved while expanding cities. In the future, a world covered with concrete and asphalt could become reality. Serious research and analysis... Question: Which of the following sentences best expresses the main idea of the passage? Options: A: Planning for future residential and commercial developments has bad effects on the environment and the living things. B: With a safety growth of population, more homes and more workplaces are needed. C: With immense technology, population growth and economic prosperity, we need to plan for the future. D: When planning for future developments, effects on the environment should be taken into account.
D

Read the article and select the best answer. Article: Winning the lottery is not the pot of gold at the end of the rainbow for many past winners. Sad stories do exist in large numbers for the past lottery winners and that's why some financial experts say "70 percent of lottery winners will squander away winning within a few years." Some end up losing all within two years, family relationships destroyed or even worse. Wayne Schenk was an old soldier diagnosed with lung cancer. When he won a million dollars in a lottery he thought his troubles were over and he would get the advanced medical treatment that might save his life. But Lottery officials refused to pay him the total sum in a single payment and they said they could not make an exception to the regulations. When Schenk died in 2007, he'd only received one payment of $34,000. Another lottery winner, Billy Bob Harrell, Jr. killed himself two years after winning 31 million dollars in the Texas lottery in 1997.He'd spent large amounts of money and given large amounts away, but he didn't end me expected peace that should have come with the freedom of money. Other lottery winners have ended up in prison for crimes. Many suffer bankruptcy after the big jackpot is spent and given away, including some of the eight people who won the 365 million Powerball in 2006. The examples given paint a sad picture of what can happen if you win a big lottery jackpot, but fortunately, these examples don't tell the stories of all jackpot winners. Question: The author supports his main idea by _ . Options: A: giving examples B: making comparisons C: listing numbers D: listing reasons
A

Read the article and select the best answer. Article: Memory is the ability to keep track of things that have happened in the past. Memory really is learning. One needs memory to ride a bicycle. A dog needs to remember if it is to come when called. Memory is said to be stored in the brain as a "memory trace ." What makes up this trace is not known. Some scientists believe that certain chemical substances may carry certain memories. For example, one substance, when given to rats, causes them to fear the dark. Other research into memory has to do with how the brain works. Psychologists use three means to find out how a person remembers. For example, give a person a grocery list. Let the person memorize the list, then put it away. The most natural way to find out how much a person remembers of the grocery list is to ask what he or she remembers. This is called the method of recall. Another method is called recognition. Give the person another grocery list. Ask him or her to choose items on the first list from the items that are on only the second list. Often a person will be able to recognize things that he or she cannot recall. A third method of finding how much a person remembers is called relearning. Here the person is asked to read over the first list. The person will probably learn the list the second time faster than he did the first time. The difference in the time it takes to relearn the list is thought of as a measure of how much a person has remembered. One way of remembering something is to repeat it many times. Interest is very important. Boring lists of facts are much more difficult to remember than something that we understand and are interested in. Motivation, or wanting to do something, is also important. Motivation is linked with reward. For example, a hungry animal quickly learns how to do something if that action gets the animal food. In humans, wanting to learn is often motivation. The praise of a teacher or the knowledge that an answer is correct is rewarding. Question: A good way to train an animal to do something quickly is to _ . Options: A: make the action easy B: praise it in words C: reward it with food D: weaken its motivation
C