Ques: Read the article and select the best answer. Article: The history of the computer keyboard started way back in 1714, when the first typewriters were manufactured. Then, they looked more like sewing machines, since they were designed by Remington, which also used to manufacture sewing machines. They were not used for commercial purposes but to produce legal documents that were neat. 1868 was the year when Christoper Latham Scholes created the typewriter that is common today and was later mass marketed in 1877. Before the typewriter advanced to become the modern-day keyboard, there were a few developments that led to it. First there was the combination of the typewriter with the telegraph to create a teletype. Key punches were also created by the combination of the typewriter with punch card systems. The teletype was used to input data in the very first computers, and this is where the development of the computer keyboard started. How the teletype worked with the computer is that a card was inserted into the teletype. The keys would then be pressed in the teletype and a series of holes would be punched in the card. These were known as key punches, which would then be put into a card reader which analyzed the cards as data. This was in 1946, and in 1948 an electromagnetically controlled teletype was brought into operation for the binary automatic computer . There later came the video display terminal and electronic keyboards. When people typed, they would immediately see the results on the screen. This was in the 1970s, and people accepted the technology because it was user-friendly. There was no long process involved in getting something typed. The very first designs of these keyboards were big and heavy, and most did not come with the computer. This was later modified to a smaller size and different colours and designs, and that is the keyboard we use today. Question: What is the text mainly about? Options: A: The process of making computer keyboards. B: The first person who invented the typewriter. C: The course of development of the computer keyboard. D: The influence of typewriters on the computer keyboard.
Ans: C

Ques: Read the 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: Which of the following statements is TRUE according to the passage? Options: A: Lena Home became the first African-American in Hollywood in her forties. B: Dena Horne was a friend of Martin Luther King. C: Lena Horne was involved in civil rights activities in the 1960s. D: Lena Horne took an active part in sports activities.
Ans: C

Ques: Read the article and select the best answer. Article: Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity . In very cold climates, there is a constant danger of developing hypothermia , which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0degC. However, differences in persons and even the time of day can cause it to be as much as 6degC higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4degC. Below 29.4degC, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6degC. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7degC. In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7degC. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death. Question: People are unlikely to survive under the body temperature _ . Options: A: higher than 34.4degC B: lower than 29.4degC C: between 40.6-41.7degC D: between 34.4-37degC
Ans:
B