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1、.重点单词识记1defeat /dIfit/ vt.打败；战胜；使受挫；n.失败2attend /tend/ vt.照顾；护理；出席；参加3expose /Ikspz/ vt.暴露；揭露；使曝光4cure /kj/ n治愈；痊愈；vt.治愈；治疗5challenge /tlInd/ n挑战；vt.向挑战6absorb /bzb/ vt.吸收；吸引；使专心7suspect /sspekt/ vt.认为；怀疑；/sspekt/ n嫌疑犯8blame /bleIm/ vt.责备；谴责；n.过失；责备9pollute /plut/ vt.污染；弄脏10handle /hndl/ n柄；把手；vt.处理
2、；操纵11link /lIk/ vt. it can keep a 2.friendship (friend) with very little effort.A few years ago my older brother and I were not getting along.Our meetings were not 3.pleasant(pleasure); our conversation was filled with arguments and quarrels; and every effort to clear the air seemed to only 4.deepen
3、(deep) our misunderstanding.Then he moved to a small island and we lost touch.One day he wrote me a letter.He described his island and 5.its people，told me what he was doing and encouraged me to write.Rereading the letter，I 6.was_driven(drive) by its humor and clever expressions.I had never known he
4、 could write so well.And with that one letter we became friends again.7It might never have occurred to my brother to write me if he had not been in a place 8.where there were no phones.Writing turned out to be the best way for us to get back in touch.Because we live in 9.an age of easy communication
5、，people often forget that they dont always have to phone 10.or email.阅读理解Port River，South Australia.A beautiful dolphin swims through the cool waters.Suddenly，the sea creature turns itself on its back，and pushes its body up head first！The dolphin is now balancing on its tail！It holds this position a
6、nd moves like this across the water for a few seconds.This dolphin is “tailwalking” Dolphin trainers love to teach their dolphins tricks like this.Crowds love to watch them.But this dolphin does not belong to anyone.It lives freely in the wild！So who taught this dolphin to tailwalk?The dolphin creat
7、ing the interest is named Billie.Billie lives off the South Australian coast，near Adelaide.It was here that scientists first saw Billie tailwalking.In the early 1980s，Billie had a bad experience.He got trapped behind a barrier，in a lake next to the sea.Billie became sick and was unable to return to
8、the sea.Local people put him in a large dolphin tank.The tank was for dolphins that performed for the public.Billie lived in the tank with other dolphins for several weeks.During this time，he saw the life of the other dolphins.He saw them receive food for performing trickssuch as tailwalking.After B
9、illie returned to the sea，scientists saw him tailwalking.But even more amazingsome other dolphins in the area also began tailwalking！Scientists believe that Billie must have learned the behavior from watching in the tank.Then Billie may have “taught” the tailwalking trick to the other dolphins.If th
10、is is the case，it would mean that Billie has demonstrated “cultural behavior” Cultural behavior is learned behavior in groups.It is common among humans.But，it is much rarer among animals！However，today scientific reports show that particular animals do perform cultural behavior.One such animal is the
11、 chimpanzee(黑猩猩)And now Billie is making scientists investigate cultural behavior among dolphins.1How does the author start the passage?ABy asking questions.BBy listing facts.CBy describing a funny scene.DBy explaining a scientific term.答案 C解析 推理判断题。作者在文章第一段描绘了一只海豚“摆尾式行走”的奇特景观，由此展开了说明，故 C 项正确。2Peopl
12、e put Billie in a tank to _.Ahelp him recoverBlet him learn to performClet him stay with other dolphinsDtrain it to entertain people答案 A解析 细节理解题。根据第四段第三、四句可知，当地人把海豚放在一个大池子中，目的是让它恢复健康，故选 A 项。3What can we infer from the last paragraph?ACultural behavior only exists among humans.BCultural behavior exis
13、ts among dolphins.CMany kinds of animals show cultural behavior.DThe chimpanzee is the cleverest animal.答案 B解析 推理判断题。根据文章第五段内容和最后一段最后一句可知，Billie 让科学家开始在海豚中研究文化行为。由此可推知，海豚也具有文化行为，故选 B 项。4What is the passage mainly about?ATailwalking performed by dolphins.BThe necessity to protect dolphins.CThe study
14、on animals behavior.DCultural behavior among animal groups.答案 D解析 主旨大意题。综合分析全文可知，作者是以海豚 Billie 的例子引出文章的中心话题：动物群体中的文化行为。.完形填空I lived in Dallas，Texas nearly all my life with my mom，dad and older sister.We were _1_ to respect others，value education，and get all that we could out of life.My parents alway
15、s say， “_2_ hard and the world is yours.” They are never without a _3_ word of advice or a bit of encouragement when life gets tough.My parents always _4_ me to go to college.However，when I _5_ at 16 years old that Id rather get married to a man than go to college，they _6_ stopped telling me they lo
16、ved me and I could do anything I wanted to._7_，they persuaded me.I graduated from high school and currently _8_ the University of Oklahoma studying medicine.I want to make the _9_ a better place to live in.Every time I call home to tell them about a _10_ I received in Chemistry Lab or Microeconomics or whichever _11_ it is that Im working hardest for at the moment，they tell me how
