1、每小题1.5分,满分7.5分)听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。第二部分 阅读第一节(共15小题;每小题2.5分,满分37.5 分)阅读下列短文,从每题所给的A、B、C、 D四个选项中选出最佳选项。Many of the most striking beasts on the planet come in only two colors: black and white. These high-contrast markings represent some o
2、f the natures most diverse evolutionary choices. For some animals, black -and- white coloring is a way to warn off natural enemies. For others, to keep insects away. For still others, it creates a clever cover. Spend some time exploring what science has discovered about these animals appearances, an
3、d you will see that basic black and white isnt so basic after all.SkunkDepending on the species, black skunks may wear white spots that act as a cover or white stripes(条纹)that signal enemies to watch out for their smelly spray.Giant PandaResent insights into panda coloring have come from studying ea
4、ch body part separately. Black ears indicate fierceness, and distinct eye patches aid in individual recognition. The panda in white body hides it against snow, white its dark limbs(四肢) keep it from being spotted in forests, a compromise developed from its poor bamboo diet: Bamboo doesnt let pandas b
5、uild up enough fat to hibernate(冬眠), forcing them to spend winters in the snow.BadgerEven when a badger is in its cave, its facial stripes can be seen; Zoologists say the warning coloration helps the small animal prevent natural enemies.Blackbuck (male)In bright sun, the bucks white stomach reduces
6、the effect of the shadow cast by his back, allowing him to appear one color and two dimensional-especially hiding from natural enemies in his own shadow.21. Which animals can use their color to warn off natural enemies?A. Skunk and Badger B. Giant panda and ZebraC. Badger and Blackbuck D. Zebra and
7、Blackbuck22. White body and dark limbs help the giant panda to _.A. show fierceness B. store fatC. recognize individuals D. take cover23. What can be a suitable title for the text?A. Which animals have black- and- white color?B. How some animals protect themselves from harm.C. Why so many animals we
8、ar black- and- white coats?D. What science has discovered about different colors.BPassing biker Anuchit saw the dog twice on a highway in Roi-Et, northeastern Thailand, and last month. He stopped to check on the dog and was told by the locals that it had been sitting at the same place for its owner
9、in the last four years.Saowaluck , 45, said that she found the dog at that place in early 2016. Then he was so skinny and he had injuries, so Saowaluck took him to the vet, adopted him and named him Leo, but after a couple of days he was missing from her house and appeared at that spot again so she
10、let him stay there and have been coming to feed him every day.Anuchit decided to share the story of Leo and a video online, prompting the dogs owner to come forward. Video shows Leo sitting by the roadside and looking out as the cars drove past.Owner Noi , 64, said her dog Bong Bong had gone missing
11、 after jumping down from her truck in 2015. “My husband and I drove around to find him but we failed. On seeing the video, she went back to the spot where she lost the dog on September 9, while Leo bounded over excitedly to Noi and let her rub his head. However, he refused to go home when she carrie
12、d him to the truck. It appeared that Bong Bong needed time to adjust himself, so Noi promised to go back again the next day.However, that night Saowaluck called Noi and said that she wanted to keep the dog because she had become attached to him. Noi responded that she was more than happy to let the
13、dog stay with Saowalack. She said: I have no intention to refuse her request. Due to her good care I believed she and the dog will be happy together and I would like her to keep the dog in her house.Saowaluck promised to take the dog home and would take good care of him while Noi suggested she was h
14、appy to take the dog back, if Saowaluck no longer wanted him.24. Why had the dog been sitting at the same place for four years?A. He was fond of freedom. B. He forgot where he was heading. C. He was waiting for his owner. D. He was looking for a new family.25. Which of the following can best replace
15、 the underlined word “prompt” in paragraph 3?A .Propose B. Force C. Promote D. Urge26. How did the dog react when he saw Noi again?A. He refused to approach Noi.B. He stayed with Saowalack.C. He jumped over in excitement.D. He rubbed against Nois legs.27. Why did Saowaluck call Noi that night?A .She
16、 had an intention of being the dogs new owner.B .She wanted to tell Noi what she had done for the dog.C .She planned to attach the dog to the truck of her own.D She intended to return the dog to Noi. CEvery new parent knows that rocking can calm that uneasy baby when its time to take a nap. But the
17、benefits of gentle movement may go beyond the baby stage. Because two new studies show that rocking also helps grown-ups, both human and mouse, get a good nights sleep.What should be no surprise is that movement can calm someone. Think of how many times youve fallen asleep on a train. But can motion
18、 really cause a nap, and make for a deeper sleep?To find out, researchers invited 18 healthy volunteers for a sleepover. So they came to the lab and slept one time on the motionless, normal bed. And one night where they got rocked. said Aurore Perrault, a sleep researcher at the University of Geneva
19、 in Switzerland.And what we find is that when compared to a motionless night, a whole night of rocking sleep has a beneficial effect not only on sleep beginning but also on sleep continuity.Subjects who were rocked also did better on a memory test the next morning than the stiller sleepers.In the se
20、cond study, Kompotis, a student at the University of Lausanne, rocked a rack of mice.Whether rocking affects sleep in other species was never before discussed. So the main questions for our study were whether rocking affects sleep in mice and what is the possible system?Kompotis placed the mouse cag
21、es on a platform that moved from side to side. Though mice were rocked four times faster than their human counterpartsa frequency of one back-and-forth per second, or 1 Hertz, worked bestthe results were strikingly similar. During rocking at 1 Hertz, time spent asleep increased, and mice fell asleep
22、 twice as fast as at still condition.However, additional studies could allow the researchers to identify a new aim for treating sleep disorders, including insomnia(失眠).Until then, you might think about adding a little swing to your nighttime routine.28. Whats the purpose of the second study in the p
23、assage?A. To do research on the sleep system of other species.B. To discuss in which case rocking affects babys sleep.C. To see whether rocking affects sleep of other species.D. To study the influence of rocking on sleep disorders . 29. What do we know about the mice in Paragraph 5?A. Their sleeping
24、 time increased when rocked at 1 Hertz.B. Their sleep disorder including insomnia was treated.C. When rocked, they fell asleep twice faster than at still condition.D. When rocked, they worked faster than their human counterparts.30. How did the researchers carry out the experiment?A. By conducting a
25、 survey B. By asking questionsC. By filling out questionnaires D. By making comparisons31. Whats the best title of the passage?A. Rocking Helps Grown-ups Sleep Too.B. Deep Sleep Needs the Constant Swing.C. Rocking Greatly Affects Deep Sleep.D. Rocking Can Treat Sleep Disorders.DA year ago I lost my
26、wonderful friend and colleague Rachael Bland. She died at the age of just 40, after suffering from breast cancer for two years.Her death knocked me for six. I knew it was coming and we had talked about it - but nothing prepared me for actually not having her in my life every day. The thing was, whil
27、e we only knew each other for a short period of time, she had a huge influence on me. When I got stage 4 lung cancer, I made a whole new group of friends. Rach was up there with the best of them. She understood exactly what I was going through; she shared my fears and was always there to comfort me.
28、 She was my rock.After Rach died, I broke down. I hit numerous brick walls in the weeks and months that followed. My cancer was progressing and I fell into a dark place. I pushed it away but ignored the terror of it all. Great sadness hit me when I least expected. Her death felt like a bad dream. Th
29、e emotional bit aside, one of the things I found really hard was to actually accept she died.Rach hoped that by starting the conversation around cancer she could help other women avoid getting cancer too. It was her absolute determination and bravery at helping to break down taboos(禁忌) that will liv
30、e on for generations to come.Rach showed me how to live with cancer. Even in her darkest days she was determined to show that cancer doesnt get to take over. She helped remind me to get busy living with cancer, rather than worry about dying from it. She was in the bottom of my heart forever.32. What
31、 does the underlined sentence in Paragraph 2 mean?A. I was beaten six times. B. Her death made me very shocked. C. Her death gave me the strength. D. She was knocked down many times .33. Why did the author hit the brick walls?A. She wanted to end up her life. B. She couldnt stand the pain of cancer.C. She had been suffering from terrible dreams. D. She was too extremely sad to accept Rachs death.34. What did Rach do to help the cancer sufferers?A. Recommend them some effective cures.B. Do voluntary work in the n
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