user: Ques: Read the article and select the best answer. Article: Humans: It's time to abandon   the earth or face extinction. This prediction isn't science fiction. It's a glimpse of the future, according to famed British scientist Stephen Hawking. "I see great dangers for the human race," he said in an interview with global forum   Big Think. "There have been a number of times in the past when its survival has been a question of touch and go  ." Hawking says humans must  _ our home planet within the next two centuries and expand into space to survive. "I believe that the long-term future of the human race must be in space," he said. "It will be difficult to avoid disaster on our planet Earth in the next hundred years, let alone the next thousand, or million." He also voiced some concerns about the future of life on the earth. In April, he spoke about his fear of aliens   in an interview for the Discovery Channel. "If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said. "Such advanced aliens would perhaps become wanderers, looking to conquer   and colonize whatever planets they can reach." But Hawking says he is still hopeful for the future of humanity. "I'm an optimist," he told Big Think. "We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space." Getting to another planet will prove a challenge, not to mention colonizing it for humanity. University of Michigan astrophysicist   Katherine Freese told Big Think that "the nearest star to Earth is Proxima Centauri which is 4.2 light years away. That means, if you were traveling at the speed of light the whole time, it would take 4.2 years to get there" --- or about 50,000 years using current rocket science. Question: According to the passage, which is NOT a reason why humans need to abandon the earth? Options: A: The earth will be destroyed by worldwide wars before long. B: It will be hard for humans to avoid disasters on the earth in the future. C: Lots of great dangers for humans have been seen. D: Advanced aliens may conquer and colonize the earth some day.
Ans: A

Ques: Read the article and select the best answer. Article: Bears and humans often meet in National Parks. Although campers and hikers are warned not to feed the bears, many people ignore these warnings and feed the beasts anyway. When bears are used to people's food, problems soon arise. Bears like to eat a large variety of things, both meat and vegetable. Without human assistance, bears live nicely on roots, twigs, leaves of trees, insects and small animals. With people around, the bears' tastes quickly expand to include sandwiches, hot dogs, hamburgers, and anything else they can temp humans into giving up. Bears often develop clever strategies for getting people to let go their food supplies. More often than not, an unsuspecting hiker has taken off his or her pack for a rest only to have a bear charge out of the woods, grab the pack and quickly disappear into the underbrush with it. Hanging the pack on a tree branch won't help. Bears have been known to climb up, jump off, and catch the pack on the way down. One mother bear stretched up with her baby on her shoulders to reach a pack stored on a pole. Many bears threaten people into giving up their supplies. Although a bear is unlikely to attack a person and would probably run away if screamed at, few people are willing to do so. Most people drop the pack and run the other way. This, of course, delights the bear. In some places, the Park Service installed some metal barrels with lids to help campers keep their supplies safe from bears. Although the bears were unable to open these containers, the effort was less than successful. Most campers, unable to tell the metal drums from rubbish cans, never used them for the intended purpose. Question: Which of the following is TRUE? Options: A: If fed on sandwiches and hot dogs, the bears would no longer eat roots, twigs and insects . B: It's likely that bears would hurt people if the people didn't give up their food. C: Most people would frighten away the bears that would temp their food. D: Seeing a pack, the bear would quickly snatch it and run away with it.
Ans: D

Ques: Read the article and select the best answer. Article: Finally, I entered the institution. Because of my careful savings, I did not have to work during the school year. Then, summer came and it was time to work harder than ever. I continued working as a waitress at night, instructed tennis camps several mornings a week and worked as a secretary for a few hours in the afternoons. It was an exhausting summer and made me anxious to return to my  ly easy life at college. During my second and third years of undergraduate schooling, I decided to work about five hours per week in the campus admissions office answering phones. This provided a little spending money and kept me from emptying my savings. The overall situation looked hopeful as I approached my senior year as long as I could make as much money as I had the previous summer. I wanted to go to Israel to study for 3 weeks, but I hesitated in making this decision because it would cost me $1,600 more to get the credits in Israel. About two weeks later my Mom called to tell me that I had $1,600 in the bank that I had forgotten about. One of my concerns about this trip was not only the cost, but the loss of time to make money: however, I made as much that summer in the ten weeks when I was at home as I had made during the fourteen weeks when I was at home the summer before. The way everything worked together to make this trip practical was one of the most exciting things that have ever happened to me. This experience has shaped me in many important ways. The first things that I learned was the importance of a strong work ethic. Working long hours did a lot to mold my character and helped me learn the value of a dollar. It also made me learn how to find creative solutions to difficult dilemmas. Whenever I am frustrated or afraid of the future, I can remember my $64,268 miracle. Question: The writer did    job (s) during the summer of the first year of undergraduate schooling. Options: A: one B: two C: three D: four
Ans:

assistant: C