1、ARoger Williams Park Zoo21. How can a person get a free t-shirt at the zoo?A Follow all the zoo rules B. Visit all the zoos exhibitsC. Bring along another guest D Identify all the animals in danger.22. Where should a lost person go for help?A. Main Entrance B. Visitor CentreC. Administration Buildin
2、g.D Nursing Centre.23. Which of the following is allowed at the zoo?A Riding your bike B Taking your cameraC. Feeding the animals D Smoking cigarettesBI saw it first, Amy said, as she ripped the old leather wallet out of Charlies hands. Without saying a word, as if they both understood that this was
3、 a secret they didnt want to share with anyone, they slipped into the alley, where no one could see them look inside Theres got to be a million dollars here! Charlie blurted out, when they saw the pile of hundred- dollar bills. Amy, the more realistic of the two, did a quick estimate, thumbing throu
4、gh the wad of cash. More like thousands” she said, her voice shaking in disbelief.Theyd found the wallet in a flowerbed by the sidewalk, when Charlie dropped his cell phone while he was trying to talk and eat a slice of pepperoni pizza at the same time. Amy stuffed the wallet into her backpack and p
5、ulled Charlie along by his elbow toward her house. As they rushed toward Viceroy Avenue, they talked excitedly about what they could do with the money-buy gifts for parents and friends, get new clothes, travel to the rainforest in Costa Rica, and adopt a whale. It looked like all of their dreams wou
6、ld come true. For the last block, however, they didnt talk. Each began to suspect that the other one was silently adding to the list of things they could buy. They finally reached Amy s house, but instead of going inside, they walked around the house to the back porch. They opened the wallet and cou
7、nted the money into piles of ten. The total wasS2400- more money than either of them had ever seen. Then they both started talking at once. I wonder who lost it Their moods shifted, sinking from the high of being rich for fifteen minutes to resigning themselves to what they must do next. For in the
8、wallets clear plastic compartment, there was a drivers license. They knew what they had to do. Although they would lose their newly-found treasure, in a way, they felt relieved.24. Where did Amy and Charlie find the wallet?A. In an alley B In a backpackC. Among some flowers D On the sidewalk25. In p
9、aragraph 2, why was Amys voice shaking?A. She was afraid that they would be seen by othersB. She was disappointed there wasnt a million dollarsC. She was fearful that Charlie would tell someone elseD. She felt nervous because shed never seen so much money26. On their way to Amys house, the childrens
10、 mood changed fromA excited to suspicious B. happy to angryC relieved to worried D. nervous to disappointed27. What did the children decide to do at the end of the story?A. To keep the money a secret from othersB. To return the wallet to its rightful ownerC. To put the wallet back where they found i
11、t.D. To buy many different things with the money.CAn article published in the prestigious scientific journal Nature sheds new light on an important, but up-to-now little appreciated, aspect of human evolution. In this article Professors Dennis Bramble and Daniel Lieberman suggest that being able to
12、run was the necessary condition for the development of our species which enabled us to come down from the trees. This challenges traditional scientific thinking, which claims that the distinctive, upright body form of modern humans has come about as a result of the ability to walk, and that running
13、is simply a by-product of walking. Furthermore, humans have usually been regarded as poor runners compared to such animals as dogs, horses or deer. However, this is only true if we consider running at high speed, especially over short distances. But when it comes to long-distance running, humans do
14、astonishingly well. They can keep a steady pace for many kilometres, and their overall speed is at least the same as that of horses or dogsBramble and Lieberman examined 26 physical features found in humans. One of the most interesting of these is the nuchal ligament(项韧带). When we run, this ligament
15、 prevents our head from moving back and forth or from side to side. Therefore, we are able to run with steady heads, held high. The nuchal ligament is not found in any other surviving primates, such as apes and monkeys. Then there are our Achilles tendons (跟腱) at the backs of our legs, which connect
16、 our calf muscles to our heel bones and which have nothing to do with walking. When we run, these tendons behave like springs, helping to push us forward. Furthermore, we have low, wide shoulders virtually disconnected from our skulls(颅骨), a physical development which allows us to run more efficient
17、ly.But what evolutionary advantage is gained from being good long-distance runners? Perhaps it permitted early humans to obtain food more effectively. What these features and facts appear to be telling us is that running evolved in order for our direct ancestors to compete with other meat-eating ani
18、mals for access to the protein needed to grow the big brains that we enjoy today, says Lieberman. Some scientists put forward the theory that early humans chased animals for great distances in order to exhaust them before killing them.Research on the history of humans ability to move has traditional
19、ly been controversial, says Lieberman. At the very least, I believe this theory will motivate many researchers to reevaluate and further investigate how humans learned to run and walk and why we are built the way we are. 28. In paragraph 1, what do the two professors suggest about humans ability to
20、run?A. It is an evolutionary by-product of walking.B. It helps to form peoples ability to climb trees.C. It has played an important role in human evolution.D. It has not been adequately studied by scientists before.29. What is true about the physical characteristics examined by the professors?A. Ach
21、illes tendons assist people to walk long distances.B. The human skull helps people to run more efficiently.C. peoples shoulders allow them to look from side to side.D. The nuchal ligament enables people to hold their head steady.30. According to paragraph 3, scientists believe that early humans_.A.
22、always came across dangerous situations in lifeB. ran after animals for long distances when huntingC often failed to find food because they couldnt run fastD developed their hunting skills by running long distances31. Professor Lieberman thinks the new theory will _.A completely explain how running
23、developedB revolutionize the theory of human evolutionC. encourage more in-depth studies on the topicD. be widely supported within the scientific communityDScientists have solved the mystery of why the overwhelming majority of mammoth fossils(化石)are male.Much like wild elephants today, young male Ic
24、e Age mammoths probably travelled around alone and more often got themselves into risky situations where they were swept into rivers, or fell through ice or into mud, lakes or sinkholes that preserved their bones for thousands of years, scientists say.Females, on the other hand, travelled in groups
25、led by an older matriarch who knew the landscape and directed her group away from danger.Without the benefit of living in a herd led by an experienced female, male mammoths had a much higher risk of dying in natural traps such as mud holes, rock cracks and lakes, said co-author Love Dalen of the Swe
26、dish Museum of Natural History in a report published on Thursday in the journal Current Biology.The study used genetic data to determine the sex of 98 woolly mammoth fossils in Siberia Researchers found that 69% of the samples were male, a heavily unbalanced sex ratio, assuming that the sexes were f
27、airly even at birthWe were very surprised because there was no reason to expect a sex bias in the fossil record, said first author Patricia Pecnerova, also of the Swedish Museum of Natural History. Therefore, researchers believe that something about the way they lived influenced the way they died.Mo
28、st bones, tusks, and teeth from mammoths and other Ice Age animals havent survived, explained DalenIt is highly likely that the remains that are found in Siberia these days have been preserved because they have been buried, and thus protected from weathering.These giant, tusked plant eaters disappea
29、red about 4,000 years ago. While there is no scientific agreement about the causes of their disappearance from the planet, most believe that climate change, excessive hunting by humans and the spread of other animals into mammoth feeding grounds were influential factors.32. The underlined word matri
30、arch in paragraph 3 means _.A. figure head B. female leaderC experienced animal D. mature mammoth33. Why do the majority of mammoth fossils come from male animals?A. Scientists find it easier to study male fossilised bones.B. There were more male mammoths in comparison to femalesC Male mammoths were
31、 better able to adapt to the changing circumstances.D. Male mammoths more frequently died in places where fossils could form.34. Which of the following is suggested as a reason for mammoths dying out?A. The increasing competition for food.B. The cooling of the earths temperature.C. The disappearance of male mammoths.D The risky behaviour of younger mammoths.35. What is the text type of the passage?A. A newspaper article. B. An academic essay.C. A historical descriptio
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