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1、AMany years ago my student asked me the question, Mrs. Kindred, why do you teach? Without taking time to reflect, I answered, Because someday I might say something that might make a difference in someones life. Even though I was sincere, that wasnt a very good answer and my student didnt let it slid
2、e. Let me get this straight, he said, You went to college for four years so you could come here every day because you have the hope that someday you might say something that will influence someone? He shook his head as if I were crazy and walked away looking confused. Im one of those people who look
3、 back and wish they had said something smart or witty, or swift. Even though that particular student might no longer wonder why I teach, there are days when I wonder. On those days, I remind myself of the real reasons I teach: Its in my blood. My mother was my most influential teacher, and she was a
4、 6th grade reading teacher until her death in 1990. She instilled(逐渐灌输) in me a love of reading and the knowledge that education opens doors. Teaching is a way to make a difference. If you throw a stone in a pond the ripples go on and on until they reach the shore. You cant have ripples without a st
5、one. Good teachers throw stones that make a positive difference, and thats what I strive to do. I genuinely love teenagers. I want to share with others what I know and what I have learned through the years. Life is full of ups and downs, and if I can help students avoid some potholes on the road of
6、life, I want to do so. If theyll allow me to celebrate their victories with them, I want to do too. Teaching isnt for everyone, but I know I made the right career choice.41. Why did the student continue to ask the question about the writers being a teacher? A. Because he thought her answer was unbel
7、ievable. B. Because the writer was insincere. C. Because the student was naughty. D. Because the answer was difficult to understand.42. What do you think of the writer? A. Stupid. B. Honest.C. Conservative.D. Polite.43. According to the text, which of the following is NOT true? A. The writers mother
8、 has the greatest influence on her. B. The writers answer made the student confused. C. In the writers opinion, some people in the world are unfit to teach. D. The writer annoyed the student who asked the question.44. We can infer from the text that _. A. the writer was also a good teacher in school
9、 B. the writer often plays with her students beside a pond C. the writer devotes herself to teaching and her students D. the writer often accompanies the students on their way home45. Whats the main idea of the text? A. A students silly question.B. A good teacher who likes students. C. A confused st
10、udent.D. The reason why I teach.BAmong various programs, TV talk shows have covered every inch of space on daytime television. And anyone who watches them regularly knows that each one is different in style. But no two shows are more opposite in content, while at the same time standing out above the
11、 rest, than the Jerry Springer and Oprah Winfrey shows.Jerry Springer could easily be considered the king of rubbish talk. The topics on his show are as surprising as can be. For example, the show takes the ever-common talk show titles of love, sex, cheating, and hate, to a different level. Clearly,
12、 the Jerry Springer show is about the dark side of society, yet people are willing to eat up the troubles of other peoples lives.Like Jerry Springer, Oprah Winfrey takes the TV talk show to its top. But Oprah goes in the opposite direction. The show is mainly about the improvement of society and dif
13、ferent quality of life. Contents are from teaching your children lessons, managing your work week, to getting to know your neighbors.Compared to Oprah, the Jerry Springer show looks like poisonous waste being poured into society. Jerry ends every show with a final word. He makes a small speech about
14、 the entire idea of the show. Hopefully, this is the part where most people will learn something very valuable.Clean as it is, the Oprah show is not for everyone. The shows main audience are middle-class Americans. Most of the people have the time, money and ability to deal with lifes tough problems
15、. Jerry Springer, on the other hand, has more of a connection with the young adults of society. These are 18-to 21year-olds whose main troubles in life include love, relationship, sex, money and drug. They are the ones who see some value and lessons to be learned through the shows exploitation.46. C
16、ompared with other TV talk shows, both the Jerry Springer and the Oprah Winfrey shows are _.A. more interesting B. unusually poplar C. more detailed D. more formal47. Though the social problems Jerry Springer talks about appear unpleasant, people who watch the shows _. A. show disbelief in themB. ar
17、e ready to face up to them C. remain cold to themD. are willing to get away from them48. Which of the following is likely to be a topic of the Oprah Winfrey show? A. A new type of robot.B. National hatred. C. Family income planning.D. Street accident.49. We can learn from the passage that the two ta
18、lk shows _. A. have become the only ones of its kindB. exploit the weaknesses in human natureC. appear at different times of the dayD. attract different people50. What is the advantage of the Jerry Springer show? A. The show exposes the dark sides of society. B. The show pours poisonous waste into s
19、ociety. C. Jerry sums up the whole idea of the show. D. Jerry talks abou the improvement of society.CCan people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour.The gene comes in two versions, one of whi
20、ch is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.Scientists have changed the colour of a dark-striped zebrafish to uniform gold by inserting a version of the pigment(色素) g
21、ene into a young fish. As with humans, zebrafish skin colour is determined by pigment cells, which contain melanosomes(黑色素). The number, size and darkness of melanosomes per pigment cell determines skin colour.It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation(变
22、异) in the gene for melanosome production. This results in less pigmented skin.However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet
23、rays of the sun(太阳光紫外线), which can cause skin cancer.But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.Asians have the same version of the gene as Africans, so they probably a
24、cquired their light skin through the action of some other gene that affects skin colour, said Cheng.The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment did on Michael Jackson.51
25、. The passage mainly tells us that _. A. people can not change their skin colour without any pain B. the new discovery could lead to search into ways to change skin colour safely C. pop king Michael Jackson often changed his skin colour as he liked D. scientists have found out that peoples skin colo
26、ur is determined by the gene52. It can be inferred from the passage that _. A. nowadays people who want to change their skin colour have to suffer a lot from the damage caused by the chemical treatment B. Europeans and Africans have the same gene C. the new discovery could help to find medical treat
27、ments for skin cancer D. there are two kinds of genes53. Scientists have done an experiment on a dark-striped zebra fish in order to _. A. find the different genes of humans B. prove the humans skin colour is determined by the pigment gene C. find out the reason why the Africans skin colour is dark
28、D. find out the ways of changing peopls skin colour54. The reason why Europeans are light-skinned is probably that _. A. they are born light-skinned people B. light-skinned Europeans have mutation in the gen for melanosome production C. they have fewer activities outside D. they pay much attention t
29、o protecting their skin55. The writers attitude towards the discovery is _. A. neutral B. negativeC. positiveD. indifferent参考答案 A 篇：本文主要讲述作者从教的理由。41. A 推理判断题 根据文章前三段内容得知，作者的回答没有令该学生相信她的从教理由是那么的简单。42. B 推理判断题 根据第一段的最后一句和全文内容可以排除A 项(愚蠢的)、C项(保守的)和D项(有礼貌的)。43. D 细节理解题 根据文章的第四、第二、第八段分别可知选项A、B、C是正确的；“我”并未
30、使该学生苦恼。44. C 推理判断题 根据作者自己的阐述，她很热爱并献身于教育事业；其余选项文中没有提及。45. D 主旨大意题 从文章的结构和作者对自己为什么从教的解释得知。B 篇：本文主要介绍美国两种不同的电视节目。46. B 推理判断题 根据文章的描述得知，这两种电视节目分别吸引着不同的人群。47. B 细节理解题 从第二段的最后一句话可以看出。48. C 细节理解题 根据第三段的最后一句话可推知。49. D 推理判断题 从文章对这两种节目的描述可知，A、B项太片面，C项文中没有提及。50. C 细节理解题 根据倒数第二段的倒数第二句得知。C 篇：本文主要讲述基因决定人的肤色。51. D 主旨大意题 根据全文讲述的主要内容得知：科学家们发现人的肤色是由基因决定的。52. A 推理判断题 从文章最后一句话得知，人们改变肤色会象迈克尔杰克逊那样受到化学药品对皮肤的伤害。53. B 细节理解题 根据第三段得知，因为斑马鱼和人类一样肤色中含有黑色素，所以科学家们以此来证明之。54. B 推理判断题 根据第四段得知，因为欧洲人体内黑色素的基因发生了变异，所以他们的皮肤为浅肤色。55. C 推理判断题 根据作者对基因决定人的肤色的论述以及文章首尾段可知，作者对此的态度是肯定的。