Q: Recent developments in astronomy have made it possible to detect planets in our own Milky Way and in other galaxies. This is a major achievement because,in   terms,planets are very small and do not give out light. Finding planets is proving hard enough, but finding life on them will prove  _ more difficult. The first question to answer is whether a planet can actually support life. In our own solar system,for example,Venus is far too hot and Mars is far too cold to support life. Only the Earth provides ideal conditions,and even here it has taken more than four billion years for plant and animal life to evolve .     Whether a planet can support life depends on the size and brightness of its star, that is its "sun". Imagine a star up to twenty times larger, brighter and hotter than our own sun. A planet would have to be a very long way from it to be capable of supporting life. On the contrary, if the star were small,the life--supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop. But how would we fund such a planet? At present, there is no telescope in existence that is capable of detecting the presence of life.  _ .      It is impossible to look for life on another planet using earth--based telescopes. Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets. Even a telescope in orbit round the earth like the very successful Hubble telescope,would not be suitable because of the dust particles in our solar system. A telescope would have to be as far away as the planet Jupiter to look for life in outer space because the dust becomes thinner the further we travel towards the outer edges of our own solar system. Once we detected a planet,we would have to find a way of blocking out the light from its star, so that we would be able to "see" the planet properly and analyze its atmosphere. In the first instance, we would be looking for plant life,rather than "little green men" .... Why are planets in other solar systems much more difficult to detect than stars? A) Because of the dust particles in our own solar system B) Because of the limitations of earth-based telescope C) Because even the Hubble is not powerful enough to see beyond the Milky Way. D) Because planets are small and dark,and stars are large and radiant
A: D


Q: Our first winter in Canada was the happiest we have experienced. We were living in the countryside then and had just arrived from Hong Kong that autumn. One evening in mid December snow began to fall. When we looked out of the window and saw that it was snowing, we all cheered. It was the first snow we had ever seen and we were excited. We could hardly wait for the snow to stop so that we could go out to play. Next morning when we woke up, it was still snowing. We switched on the radio and learned that more than ten inches of snow had falled during the night and that since the roads were blocked there would be no school that day. We jumped up and down for joy and begged mother to let us go outside to play in the snow. She said we could go out after breakfast if we dressed ourselves warmly and promised to come back as soon as we felt cold. When we went out, the snow had almost stopped. The roads , paths, gardens, and playing grounds were all hidden under a white blanket of soft snow. It was the most beautiful sight we had ever seen. Just then, we saw some neighbour's children coming out to play. We ran over to join them. Together we built a snowman and a snow house. After that, we took turns sliding down a hill on a large piece of cardboard. We were having so much fun when supper time came. Mother almost had to force us to go in and eat. The writer and his brothers and sisters built   _  . A) a snowman and a cardboard house of their own B) a snowman and a snow house for themselves to live in C) a snowman and a snow house with their neighbors' children D) a white blanket on the roads
A: C


Q: More college graduates in China are seeking for work experience instead of advanced degrees, a survey shows. The practical approach, coupled with a record number of students graduating from college, is expected to strengthen competition in the job market, analysts said. More than 76 percent of university students said they wanted to work after earning their degrees this summer, up from 68.5 percent in 2012 and 73.6 percent last year, according to poll results from Zhaopin.com, a major online agency, Zhu Bo. The annual survey also shows that about 20 percent university graduates chose to further education after graduation, while about 3 percent wanted to start their own businesses. Zeng Hao ,a 25-year-old media major, managed to land a job in a publishing company in Zhongshan, Guangdong province, before he received his master's degree from the University of Macau in June. " Work experience really matters in the publishing industry" he said. Wei Guihong , a program administrator at Nanjing University, said about 60 percent of the school's graduates entered the labor market every year. "More and more students majoring in a foreign language choose to go abroad to continue their studies to improve their language skills," she said continuously, "That's perhaps a bright future." Liu Junsheng , a researcher at the Labor and Wage Institute of the Ministry of Human Resources and Social Security, believes that economic conditions play a vital role in shaping college graduates' choices ."There were fewer job opportunities in the market. " he said. "Although academic degrees still matter, more and more employers value job seekers' work experience." he said. The Zhaopin.com survey shows that each of the graduates sent resumes  on average to about 28 potential employers and received five interview opportunities. From the text, we know that the real expert on employment is  _ A) Zhu Bo B) Zeng Hao C) Liu Junsheng D) Wei Guihong
A: C


Q: As a teacher, I always think it right to teach my students to write about their true feelings and real experiences. But once I was puzzled about this. After explaining a text one day, I asked my students to write a passage about their families. All the students wrote quite well but the best of them all was the one written by a small girl. I was deeply touched by it. The girl's father had died years before and her mother had to work hard to support the family. Many times she had seen her mother working deep into the night but never seen tears on her face. Like her mother this girl also works hard at her lessons and she is really good at any of them. I even didn't know anything about her unlucky family. She always appears happy every day so she is really liked by us all, both the students and teachers. In order to make her an example to the class, I read this passage to the class. When I finished reading it I found my throat _ and my students' eyes full of tears. Some of them even wept in a low voice. After the class nearly all my other students wanted to hand in their pocket money for the daily use to help this girl. To tell you the truth, I was really proud of my students. But to my disappointment, this student of mine left the class even without telling me the next day. I don't know the reason why, can you tell me? Which of the following is TRUE according to the passage? A) The teacher asked her students to read the little girl's article by themselves. B) The little girl's father died of a traffic accident. C) The little girl's classmates were willing to help her. D) The little girl's mother blamed her for her writing.

A: C