Read the article and select the best answer. Article: Global warming and changing climatic conditions are triggering disease epidemics in wildlife around the world, reports a famous team of ecologists and epidemiologists in the Friday June 21st issue of Science. "What is most surprising is the fact that climate sensitive outbreaks are happening with so many different types of pathogens ----viruses, bacteria, fungi, and parasites----as well as in such a wide range of hosts including corals, oysters, terrestrial plants, birds, and humans, " says lead author Drew Harvell of Cornell University. "This isn't just a question of coral bleaching for a few marine ecologists, nor just a question of malaria for a few health officials---the number of similar increases in disease incidence is astonishing," says coauthor Richard Ostfeld from the Institute of Ecosystem Studies in Millbrook prefix = st1 /New York. "We don't want to be alarmists, but we are alarmed." The team documented examples of viruses, bacteria, and fungi associated with diseases that develop more rapidly with slight rises in temperature. Many vectors of disease such as mosquitoes, flies, and rodents, as well as the viral, fungal, and bacterial pathogens are highly temperature and moisture sensitive. As temperature increases, _ are likely to spread into new areas and may have potentially devastating effects on wildlife populations that have not been previously exposed. Reproduction, growth, and biting rates of insects all go up with increases of temperature. Winter is the limiting time for many pathogens, killing back populations each year. With milder winters, this population bottleneck may be removed for many species. Warmer, longer summers also mean that the period of time of disease transmission is longer. Warmer summers may increase host susceptibility to disease due to thermal stress, particularly in the oceans. Marine bacteria and fungal growth rates are positively correlated with increasing temperature. Question: According to the passage, the report was written by _ . Options: A: Drew Harvell B: Richard Ostfeld C: Drew Harvell and Richard Ostfeld D: A team of ecologists and epidemiologists
D

Read the article and select the best answer. Article: Do you know how much tropical rainforest is being destroyed each day around the world, and for what purpose(s)? Putting down exact numbers is nearly impossible, but most experts agree that we are losing upwards of 80,000 acres of rainforests daily. Along with this loss and degradation , we are losing some 135 plant, animal and insect species every day-- or some 50,000 species a year-- with the forests'fall. According to researcher and writer Rhett Butler, tropical rainforests play a key role in the basic functioning of the planet. They help keep the climate normal by regulating atmospheric gases and rainfall. Rainforests are also home to some 50 percent of the world's species, making them an outdoor biology library. Environmentalists also point out that a quarter of our modern _ are got from the rainforest, but only less than one percent of the trees and plants in the tropics have been tested for curing diseases. Sadly, then, we don't really know the true value of what we're losing as we cut down and burn them. Overall tropical degradation rates during the past 10 years are 8.5 percent higher than those during the 1990s. This figure is for all forests in the world's tropics, but researchers believe the loss of ancient rainforests has increased by as much as 25 percent. Although the public is paying more attention to the importance of tropical rainforests, deforestation rates are actually on the rise, mostly due to activities such as cutting, developing agriculture, animal raising, construction and mining. Indeed, as long as money-seekers are allowed to enter these areas, and as long as the population of poor people continues to increase, tropical rainforests will continue to be destroyed. We can not make the poor rich quickly, but we can at least stop businessmen setting foot on these areas through laws. Question: What would be the best title for the passage? Options: A: Tropical rainforests, heart of the earth B: Tropical rainforests are calling for help C: How can we save tropical rainforests? D: Rainforests, good for all
B

Q: Read the article and select the best answer. Article: On Friday, Japanese researchers announced a population clock that showed a dangerous situation that the Japanese nation would disappear in 1,000 years if the falling birth rate kept the present level. Researchers in the northern city of Sendai said that Japan's population of children aged up to 14, which now stands at 16.6 million, was falling at the rate of one child per 100 seconds. It would lead to a terrible result that there would be no children left in Japan in 1,000 years. "If the rate keeps falling at that rate in our country, there will only be one child who is able to enjoy the following Children's Day left on May 5th, 3011," said Hiroshi Yoshida, a professor at Toholu University. "But 100 seconds later, a national disaster that there are no children left in Japan will happen," he added, "The nation's people will disappear for the birth rate has fallen to the level that every woman has no more than two children, which started in 1975." Yoshida said they created the population clock to make Japanese people pay close attention to that problem for their nation's future. Another study showed that Japan's population was expected to fall to one third of the present population amount: 127.7 million in the next century. The Japanese government predicted that the birth rate would just become 1.35 children per parents within 50 years. At the same time, Japanese life expectancy which is expected to ascend from 86.93 years in 2010 to 90.93 years in 2060 for women and from 79.64 years to 84.19 years for men has already been one of the highest in the world. More than 20 percent of the Japanese are aged 65 or over. It means that Japan has become one of the countries with aging populations in the world. The problem of aging populations is a headache for the government and the Japanese economy because there are fewer and fewer workers who can make money for the country. However, the government has to face the terrible situation that it needs to offer a growing number of pensions. Question: Why did researchers think Japanese people would disappear in 1,000 years? Options: A: Because the Japanese are afraid of the changing environment. B: Because Japan will be destroyed by a serious earthquake. C: Because the birth rate of the nation is at a very low level. D: Because the country will sink in the Pacific Ocean gradually.
A: C