Read the following article and select the best answer. Article: According to the UN Intergovernmental Panel on Climate Change, global temperatures have risen by approximately 0.6degC in the past century, caused mainly by emissions of greenhouse gases produced by human activities,such as the burning of fossil fuels and deforestation.Temperatures are to increase between 1.6degC and 5.8degC in the next century, accompanied by sea level rise and an increase in the frequency of extreme weather events. The best available evidence suggests that climate changes since the 1970s may already be causing over 150,000 deaths annually, and that greenhouse gas emissions would increase disease burdens in the coming decades.The risks are concentrated in the poorest population, who have contributed least to the problem. The Kyoto Protocol is signed by 128 nations,and commits the participating industrialized countries to cutting emissions of greenhouse gases by over 5% below 1990 level by the period of 20082012. "Over 600 thousand people died in weatherrelated disasters in the 1990s.Temperature and rainfall influence the rates of diseases and infections including malaria,and malnutrition,which together cause over 3.5 million deaths a year.The Kyoto Protocol is the first step towards protecting the climate system,which exerts such a strong influence on our health",said Dr Kerstin Leitner,Assistant DirectorGeneral for Sustainable Development and Healthy Environments. While acting to reduce greenhouse gas emissions, it is also essential to protect vulnerable communities from the effects of climate changes.WHO works to promote measures such as protection from malaria and other climate sensitive diseases, and reliable access to clean water and sanitation, for people in the most vulnerable developing countries.Increasing disease control efforts will also help to protect current and future generations from the impacts of greenhouse gas emissions. Question: What does the passage mainly talk about? - Climate changes and the effects on human health. - Climate changes cause over 15,000 deaths annually. - Who promotes measures such as protection from malaria. - The Kyoto Protocol helps to protect human health.
Climate changes and the effects on human health.

(Question)
Read the following article and select the best answer. Article: The World Health Organization reports a number of people have died of the Ebola virus in central Africa during the last few months. Ebola, also known as Ebola hemorrhagic fever or Ebola viral disease, is a rare and deadly illness with high death rates in humans and primates. The natural source of Ebola virus remains unknown, although bats seem to be the most likely source. The Ebola virus began spreading after victims were discovered in northeastern Gabon. So far, it is the third time Ebola has spread through Gabon since 1994. Health officials believe people moving across the border spread the disease from Gabon to Congo. Ebola is highly infectious and kills up to 80% of its victims. Researchers do not know the method with which the virus first appears in humans, but they believe it is through infected animals. The disease then spreads from person to person through blood and other body liquids. Ebola victims treated early have the base chance of survival. Signs of Ebola include a high temperature, diarrhea, muscle pains and bleeding inside the body, in severe cases, victims experience chest pains and death. There is no known cure for the disease and no way yet to prevent it. Scientists at the American National institutes of Health are working to develop a vaccine to prevent Ebola. Doctor Cary Nobel is leading the research effort at N-l-H testing center in the eastern state of Maryland. He says that during the past two years, the vaccine has been tested on small animals and monkeys for safety and effectiveness. In the most recent study, four monkeys who had been given the vaccine were completely protected from a deadly injection of the Ebola virus. The study was described in November in Nature magazine. Doctor Nobel says the tests appear to have moved scientists one step closer to a vaccine for humans. Question: What can we learn from the passage? - Once infected with the Ebola virus, people can never survive. - Half of the Ebola victims will lose their lives. - No cure has been found for the disease. - Scientists have succeeded in preventing Ebola.
(Answer)
No cure has been found for the disease.

Ques: Read the following article and select the best answer. Article: STEVE EMBER: And I'm Steve Ember with People In America in VOA Special English. Today we remember the singer and actress Lena Horne. During her sixty-year career performing, Lena Horne entertained people with her beauty and rich, emotional voice. She used her fame to fight social injustices toward African-Americans. Lena Horne was born in New York. At sixteen, Lena became a dancer at the famous club in New York City in 1933. After taking voice lessons, she soon became a singer. In 1940, Lena Horne became the first African-American to perform with an all-white jazz hand. After performing at a club in Hollywood, California, she caught the attention of filmmakers. She soon began making movies. Her films became very popular. In the 1940s, Lena Horne was the first African-American in Hollywood to sing a long -term contract with a major movie studio. Her deal with MGM stated that she would never play the role of a servant. She refused to play roles that represented African-Americans disrespectfully. Lena Horne once said that World War II helped make her a star. She was popular with both black and white soldiers. She sang on army radio programs and traveled to perform for the troops. These experiences led to Lena Horne's work in the civil rights movement. Lena Horne sang at rights gatherings. She took part in the march on Washington protest in 1963. It was during this event that Martin Luther King gave his "I have a dream" speech. She protested racial separation at the hotels where she performed. She took action so that she and her musicians would be allowed to stay in those hotels. B1ack musicians at the time generally stayed in black neighborhoods. At the age of eighty, she said she did not have to act like a white woman that Hollywood hoped she would become. She said: "I'm me, and I'm like nobody else." Lena Horne died in New York in 2010. Question: This text is developed - by space - by time - by process - by comparison
Ans: by time

Question: Read the following article and select the best answer. Article: Researchers continue to show the power behind our sense of smell.Recent studies have found,among other things,that the smell of foods like pizza can cause uncontrollable anger in drivers on roads. The review explains that smell is unique in its effects on the brain.According to Conrad King,the researcher who carried out the review,"more than any other senses,the sense of smell goes through the logical part of the brain and acts on the systems concerned with feelings.This is why the smell of baking bread can destroy the best intentions of a dieter." Smell,which dictates the unbelievable complexity of food tastes,has always been the least understood of our senses.Our noses are able to detect up to 10,000distinct smells.Our ability to smell and taste this extremely large range of smells is controlled by something like 1,000genes ,which make up an amazing 3% of the human genome.Researchers Richard Axel and Linda Buck were together awarded a Nobel Prize in 2004for their ground-breaking research on the nature of this extraordinary sense.These two scientists were the first to describe the family of 1,000olfactory genes and to explain how our olfactory system works. According to one study in the research review,smelling fresh pizza or even the packaging of fast foods can be enough to make drivers feel impatient with other road users.They are then more likely to speed and experience uncontrollable anger on roads.The most reasonable explanation is that these can all make drivers feel hungry,and therefore desperate to satisfy their appetites. In contrast,the smells of peppermint and cinnamon were shown to improve concentration levels as well as reduce drivers'impatience.Similarly,the smells of lemon and coffee appeared to promote clear thinking and mental focus. However,the way genes regulate smell differs from person to person.A study by researchers in Israel has identified at least 50olfactory genes which are switched on in some people and not in others.They believe this may explain why some of us love some smells... Question: Which of the following can help people concentrate? - Bread. - Fruits. - Coffee. - Fast food.
Answer:
Coffee.