Read the following article and select the best answer. Article: If your idea of a good time is to sleep in a hut, carry your own rubbish, and eat insects and wild animals, then ecotourism may be just for you. But is it also for people who want to fly over a rainforest sky before checking into a comfortable and expensive hotel in the middle of a national park? Whatever ecotourism is, it is hot--perhaps too hot for its own good. The World Tourism Organization claims that the industry looked after 592 million travelers last year who spent $423 billion, and of all the types of tourism, ecotourism seems to be the fastest growing. By the broadest measure -- a trip with some sort of nature or wilderness element -- ecotourism already accounts for perhaps a third of these travelers. On a stricter definition favored by the Ecotourism Society, it is "responsible travel that preserves natural environments and keeps up the well-being of local people," which accounts for no more than 5% of tourism. Ideally, ecotourism helps both people and nature. Before the disastrous civil war, Rwanda's Mountain Gorilla Project was one such model. Visits to the gorillas were limited, local guides ensured good behavior or on the part of the humans, and the high admission charge - $170 a day -- paid for salaries and presentation of the gorillas' living areas. As this made the gorillas worth more alive than dead, poaching decreased. As another example, preservation Cooperation, Africa's largest ecotour operator, uses only local labor, buys products 5om local farmers, and supports building projects: such as clinics and schools. This contribution to social advance is also good business sense. Projects from which local people benefit directly are less likely to be affected by poaching and theft. Ecotourism's biggest problem is labeling. Going on an eco-tour is no guarantee of good ecology. So far, only Australia has an official system to grade tour operators and tourist attractions on the basis of their "greenness". Another issue is how eco-tourists damage the environment. Dolphin-feeding, for instance,... Question: According to the passage, ecotourism may _ . - harm its own purpose by becoming too popular - save the environment by becoming more popular - harm its own purpose by becoming less popular - save the environment by becoming less popular
harm its own purpose by becoming too popular

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Read the following article and select the best answer. Article: You know you have to read "between the lines" to get the most out of anything. I want to persuade you to do something equally important in the course of your reading. You have to "mark between the lines". By marking you can make the most efficient kind of reading. There are two ways in which one can own a book. The first is the property right you have by paying for it, just as you pay for clothes and furniture. While full ownership comes only when you have made it a part of yourself and the best way to make yourself a part of it is by writing marks on it. Why is marking up a book _ to reading? First, it keeps you awake. Second, active reading is thinking, and thinking tends to express itself in words. Finally, marking helps you remember the thoughts you had, or the thoughts the author expressed. Reading a book should be like making a conversation, a conversation between you and the author. Although he knows more about the subject than you do, don't let anybody tell you that a reader is only on the receiving end. Understanding is a two-way operation. Reading doesn't mean being a passive empty receiver, the reader has to question himself and question the author. And marking a book can show his own judgment on author's opinion: agreement or difference. Question: By saying "Understanding is a two-way operation" the author means _ . - a reader will receive everything the book presents - the author should understand readers - a reader should have his own judgment of the author's opinion - the author should help readers understand better
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a reader should have his own judgment of the author's opinion

Ques: Read the following article and select the best answer. Article: Electronic waste, or e-waste, refers to electronic products that are no longer usable. This can include TVs, cell phones and computers and other office electronics, electronic toys and videos machines. Today, the average turnover rate for a computer in the United States is every two years, according to the environmental group, Greenpeace. The group's Dai Yun says e-waste is a global problem. "The electronic industry is one of the fastest growing industries in the world. The high speed of growth in this industry means more and more electronic products are being wasted and thrown away. If no one decides to retrieve the old products and process them properly, the electronic waste will sweep over the earth like the huge wave behind me and pollute the Earth seriously." Greenpeace works out that 20 to 50 million tons of e-waste are produced globally each year. The components in many electronic products contain harmful chemicals that pollute ground water and the environment. At present , the U.S. has no federal law for the disposal of e-waste although a few states have e-waste recycling programs in place, but there is no law. The U.S. exports much of its e-waste to third world countries, such as India and China, where workers took apart computers for valuable parts, hoping to sell them for money. But harmful wastes expert, Dr. Bakul Rao, says that's a dangerous practice. "From now on, the recyclers are not very educated. All they know is they can retrieve copper or gold out of it. So, the easiest way to do that is leach it out in an acid or burn it off to retrieve it. So, that's where they don't know how to deal with it, neither do they have any health systems in place. So, their exposure is more." Question: What of the following statements is true according to the passage? - The U.S. has strict national laws for dealing with e-waste. - Third world countries import e-waste to get valuable parts, which is a safe and easy way to make money. - The way uneducated workers deal with old computers does great harm to the environment as well as to their own health. - More and more electronic waste is being wasted and thrown away mainly because of people's bad habits.
Ans:
The way uneducated workers deal with old computers does great harm to the environment as well as to their own health.