Global warming is expected to affect agriculture in every part of the world but it will have greater impact in the tropics and subtropics, where crops are less able to adapt to climate change and food shortages are already starting to occur due to rapid population growth.

  Scientists at Stanford University and the University of Washington discovered that by 2100 there is a 90 percent chance that the coolest temperatures in the tropics during the growing season will be higher than the hottest temperatures recorded in those regions through 2006. Even more temperate parts of the world can expect to see previously record-high temperatures become the norm. 

  With the world population expected to double by the end of the century, the need for food will become increasingly urgent as rising temperatures force nations to retool their approach to agriculture, create new climate-resistant crops, and develop additional strategies to ensure an adequate food supply for their people. 

  All of that could take decades, according to Rosamond Naylor, who is director of food security and the environment at Stanford. Meanwhile, people will have fewer and fewer places to turn for food when their local supplies begin to run dry

    Emily Brontë, one of the three gifted Brontë sisters, is the author of the famous English novel Wuthering Heights. She was born in Thornton, Yorkshire, in England, the fifth of six children. In 1820, her family moved to Haworth, 39 her mother died in 1821 and her two elder sisters died in 1825. Her father, a minister, was a stern and sullen man, and the aunt who took over the household was more strict than loving. The four surviving children became a close-knit group and 40 one another with emotional and creative support. 41 in a small and remote community, the four siblings paired off and used their unusual literary gifts to write about imaginary lands. Emily and her younger sister Anne 42 the imaginary country of Gondal and wrote literature for it that included legends and poetry. Gondal remains a source of Emily’s later art, providing the setting, characters, and situations for many of her best dramatic poems and for her novel Wuthering Heights.

    The United States doesn’t have one police force. Instead, there are different police agencies around the country. At the head of each police department is the Chief. The police force includes police officers and detectives. Police officers wear uniforms, and they respond to calls for help, direct traffic, investigate a burglary, etc. They often patrol a specific area and work with a partner. Detectives are plainclothes investigators who gather facts about specific cases. An officer or detective can be promoted to corporal, sergeant, lieutenant, or captain. 

    Citizens who are at least 20 years old can enter the police force but there are specific requirements. They must pass certain written and physical examinations. In addition, senior officers, psychiatrists, or psychologists find out about the candidates’ personality by interviewing them or giving them a personality test.

   Hurricanes are tropical cyclones. When a tropical cyclone’s sustained winds reach 39 to 73 mph (63 to 118 km/h), it would be considered as a tropical storm. Then it gets a name from a list put out by the World Meteorological Organization. 16 those sustained winds reach 74 to 95 mph (119 to 153 km/h), that storm becomes a Category 1 hurricane. 17 NASA, hurricanes are viewed as the most violent storms on Earth. Basically, hurricanes are fueled by two 18 : heat and water. Hurricanes are seeded over the warm waters above the equator, where the air above the ocean’s surface takes in heat and moisture. As the hot air 19 , it leaves a lower pressure region below it. This process repeats as air from higher pressure areas moves into the lower pressure area, heats up, and rises, in turn, producing swirls in the air. Once this hot air gets high enough into the 20 , it cools off and condenses into clouds. Now, the swirling vortex of air and clouds grows and grows and can potentially become a thunderstorm.

   Nancy has been to many countries such as England, France, Germany and Australia, but she has never gone to America. Therefore, when she was told that she could attend a business meeting in America, she decided that she wanted to go there and to 26 the country. As the meeting was to be held in Chicago, she first took a flight from Taipei to Los Angeles and then waited for a transit flight there. Unfortunately, by the time she arrived in Los Angeles, all the flights to Chicago had been cancelled because of a heavy storm. As Nancy was very 27 about not being able to attend the meeting on time, she asked the people at the check-in counter to help her solve the problem. But nobody could help her as they were all too busy 28 other customers' complaints. As a consequence, she had no choice but to stay in Los Angeles for the night. 

   Yet, the same thing happened to her the next day. She still had difficulty boarding a flight to Chicago. While she was worried about the possibility of missing the meeting in Chicago, an American sitting beside her suggested that she could, in fact, plan another 29 to get to Chicago. She followed the advice and boarded another airline for Chicago. She flew to Denver first, waiting for a transfer flight to Chicago. But she missed the plane because she wasn't 30 the time difference. She was put on a waiting list and had to wait for the next flight to Chicago. When she finally boarded the plane, she felt greatly relieved. Although it was already late in the evening when she arrived in Chicago, she was happy that she made it to Chicago after all!