题目
题型:不详难度:来源:
Jewelweeds are pretty flowers that grow in wet, shady spots all over the Northern Hemisphere. According to a recent experiment, they seem to know their own flower family —or at least, recognize whether or not they came from the same mother plant. Together with other through their leaves, but through their roots.
Scientists planted jewelweeds in pots with either siblings(兄弟姐妹)or strangers. Sibling plants were grown from seeds that came from the same mother plant. Stranger plants were grown from seeds from different plants.
When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food.
When jewelweed seedlings were planted with siblings, they few a few more branches than they normally would if they were alone—but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete.
The plants only responded this way when they shared soil. If stranger seedlings were planted in different pots and placed next to each other, for example, they did not grow more leaves. This different shows that the plants must use their roots to detect sibling plants in the same soil. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach—where it may be hard to get fresh water. In that experiment, the botanists observed that when sea rockets were planed with siblings, they tolerated each other. But when they were planted with strangers, the sea prickets reacted by working extra hard to grow lots of roots, but not extra leaves.
The different types of plants may react in different ways, but they have one thing in common: the roots. In both experiments, on Jewelweeds and sea rockets, the key was the shared soil—and other plant species may turn out to show similar behavior. These experiments, as well as earlier experiments, suggest “The phenomenon is quite common.” Says Hans de Kroonof, an ecologist in the Netherlands.
57.In Paragraph 1, the author mentions a recent experiment of Jewelweeds to___________.
A.make a comparison B.introduce a topic
C.describe a pretty flower D.put forward a new theory
58.What can we know from the experiments done by scientists?
A.Jewelweeds can grow in the Northern Hemisphere.
B.Jewelweeds can grow in wet, shady spots.
C.Jewelweeds are more friendly to their siblings than to stranger plants.
D.jewelweeds can recognize their siblings through leaves.
59.If jewelweeds and their siblings are planted in different pots and placed close to one another, they will___________.
A.start to grow more leaves B.detect the strangers
C.compete with sibling plants D.grow normally
60.The best title of the passage would be___________.
A.Flower family knows its roots
B.The growing conditions of Jewelweeds
C.Jewelweeds and sea rockets
D.The stranger plant recognize each other
答案
57—60 BCDA
解析
核心考点
试题【Jewelweeds are pretty flowers that grow in wet, shady spots all over the Norther】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
第二节: John, Carol, James, Mike and Jane五人打算买房,根据他们的需求,请从A—F的住所
描述广告中,分别帮他们找到合适的房子。并在答题纸上将该选项标号涂黑。选项中有一项
是多余的选项。
61.John, a successful businessman, and his wife want to buy a very fine home with a wonderful kitchen.
62.Carol, outgoing and fond of entertaining people, is looking for a home with a fireplace, a pool and a sauna.
63.James and Sandra, sports-lovers, want to live where they can take their children for walks on trails very close to their home.
64.Mike, keen on farms and the country, wants to own a property where he can raise animals in his spare time.
65.Jane, owning a company and doing a lot of housework, is looking for a home with a large area that can be used for her business
A year ago August, Dave Fuss lost his job driving a truck for a small company in west Michigan. His wife, Gerrie, was still working in the local school cafeteria, but work for Dave was scarce, and the price of everything was rising. The Fusses were at risk of joining the millions of Americans who have lost their homes in recent years. Then Dave and Gerrie received a timely gift-$7,000,a legacy(遗产) from their neighbors Ish and Arlene Hatch, who died in an accident. “It really made a difference when we were going under financially(经济上),” says Dave.
But the Fusses weren’t the only folks in Alto and the neighboring town of Lowell to receive unexpected legacy from the Hatches. Dozens of other families were touched by the Hatches’ generosity. In some cases, it was a few thousand dollars; in others, it was more than $100,000.
It surprised nearly everyone that the Hatches had so much money, more than $3 million—they were an elderly couple who lived in an old house on what was left of the family farm.
Children of the Great Depression, Ish and Arlene were known for their habit of saving. They thrived on(喜欢) comparison shopping and would routinely go from store to store, checking prices before buying something.
Through the years, the Hatches paid for local children to attend summer camp when their parents couldn’t afford it. “Ish and Arlene never asked if you needed anything.” says their friend Sandy Van Weelden. “They could see things they could do to make you happier and they would do them.”
Even more extraordinary was that the Hatches had their farmland distributed(分送). It was the Hatches’ wish that their legacy—a legacy of kindness as much as one of dollars and cents —should enrich the whole community (社区) and last for generations to come.
Neighbors helping neighbors—that was Ish and Arlene Hatch’s story.
64. According to the text, the Fusses ____________.
A. were employed by a truck company B. worked in a school cafeteria
C. were in financial difficulty D. lost their home
65. Which of the following is true of the Hatches?
A. They gave away their possessions to their neighbors.
B. They left the family farm to live in an old house.
C. They had their children during the Great Depression.
D. They helped their neighbors to find jobs.
66. Why would the Hatches routinely go from store to store?
A. They decided to open a store. B. They wanted to save money.
C. They couldn’t afford expensive things . D. They wanted to buy gifts for local kids.
67. According to Sandy Van Weelden, the Hatches were _________.
A. mean B. childlike C. curious D. understanding
第二节完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文从短文后各题所给的四个选项(A、B、C和D)中选出可以填入空白的最佳选项,并在答题卡上将该项涂黑。
It was getting dark and snow was coming down. Joe was driving home. He’d been unemployed since the factory 36 . Most of his friends had left, but he stayed on. 37 , he was born here.
Suddenly he saw a lady standing on the side of the road and 38 . She was worried. No one had stopped to 39 for the last hour. Joe knew 40 she felt and said, “My name is Joe and I’m here to help you.” All she had was a flat tyre, 41 for an old lady, that was bad enough. Joe changed the 42 , but he got dirty and his hands hurt. She wanted to pay Joe and said any 43 would have been all right. Joe never thought twice about the money and there were many people who had 44 him a hand in the past. He had lived his life that way. He told her that if she really wanted to pay him 45 , the next time if she saw someone who needed help, she could give that person the assistance that he 46 .
Later the lady went in a 47 decorated restaurant to eat in a hurry. The cashier(出纳员) was like the telephone of an out-of-work actor----it didn’t 48 much. However, the waitress, who was nearly eight months pregnant(怀孕的), brought a clean towel to her with a 49 smile. The old lady 50 Joe. After the waitress brought the change from a 100-dollar bill, she found the lady 51 and something written on a napkin, “ 52 once helped me out, the way I’m helping you. 53 you really want to pay him back, don’t let the chain of love 54 with you.”
That 55 the waitress gave her sleeping husband a soft kiss and whispered, “ Everything’s going to be all right, Joe.”
36 A opened B invited C refused D closed
37 A In all B After all C For all D At all
38 A pulled in B pulled out C pulled up D pulled down
39 A leave B stay C ask D help
40 A how B what C when D that
41 A however B but C and D so
42 A car B seat C tyre D type
43 A amount B money C time D change
44 A got B won C given D awarded
45 A off B out C down D back
46 A asked B needed C gave D hoped
47 A poorly B well C widely D narrowly
48 A read B ring C cost D send
49 A excited B satisfied C sweet D cold
50 A thanked B thought C praised D remembered
51 A gone B disappear C left D lost
52 A Anyone B Everyone C Someone D Anybody
53 A After B As C Though D If
54 A keep B end C last D continue
55 A day B night C morning D week
Should we try to contact and make friends with other beings in the universe? Certainly not,says British physicist Stephen Hawking.
“If aliens(creatures from other planets)ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn’t turn out very well for the Native Americans,’’ said the 68-year-old disabled scientist in a new Discovery documentary (纪实性电视节目) on April 25.
The program pictures an imagined universe where other life forms in huge spaceships hunt for resources after using up all those on their home planets.
“Such advanced aliens would perhaps become nomads(游牧民),looking to conquer and colonize whatever planets they can reach,”warned Hawking.
On the probability of other life forms existing, he says, “To my mathematical brain, the numbers alone make thinking about aliens perfectly reasonable.”
Hawking’s concerns have frightened some people and been met with disagreement from other researchers.Paul Davies, author of the book Renewing Our Search for Alien Intelligence,thinks Hawking’s reasoning is wrong.
He argues that since Earth is about 4.5 billion years old,if intel1igent life is likely , communities of other beings may have been there for a very long time.
“If resources are the factor, then at least one group of aliens would surely have visited Earth as a destination mil1ions of years ago.
Even if other life forms do come to Earth in the near future, Davies believes comparisons with are wide of the mark(离谱的).
68. What is the article mainly about?
A. Other life forms coming to our planet.
B. Scientific evidence of other life forms.
C. Earth as the only place where human beings can survive.
D. Hawking’s belief that other life forms may exist in the universe.
69. Which of the following ideas is opposed to Hawking’s view?
A. Other life forms exist in the universe.
B. 0ther life forms may be more intelligent than human beings.
C. We should try to contact other 1ife forms from other planets.
D. Other life forms may exist in more than one part of the universe.
70. Paul Davies didn’t agree with Stephen Hawking ,believing that ________.
A. the universe is running out of resources
B. humans are the best creatures in the universe.
C. it is a good idea to avoid meeting with other life forms
D. Davies doesn’t think it proper to compare aliens with Columbus
71. Hawking referred to Christopher Columbus as an example to ____.
A. inspire interest in the universe
B. draw attention to other planets in the universe
C. warn people to watch out for other life forms
D. urge further exploration of the universe~
第Ⅱ卷(共45分)
第四部分 书面表达(共两节,满分45分)
第一节 阅读表达(共5小题;每小题3分,满分15分)
阅读下面的短文,请根据短文后的要求答题(请注意问题后的字数要求)
[1] If you are a recent social science graduate who has had to listen to jokes about unemployment from your computer major classmates, you may have the last laugh. There are many advantages for the social science major because this high-tech “ Information Age” demands people who are flexible (灵活的) and who have good______________.
[2] There are many social science majors in large companies who take up important positions. For example, a number of research studies found that social science majors have achieved greater managerial success than those who had technical training or pre-professional courses. Studies show that social science majors are most suited to change, which is the leading feature of the high speed, high-pressure, high-tech world we now live in.
[3] Social science majors are not only experiencing success in their long-term company jobs, but they are also finding jobs more easily. A study showed that many companies had filled a large percentage of their entry-level positions with social science graduates. The study also showed that the most sought-after (广受欢迎的) quality in a person who was looking for a job was communication skills, noted as “very important” by 92 percent of the companies. Social science majors have these skills, often without knowing how important they are. It is probably due to these skills that they have been offered a wide variety of positions.
[4] Finally, although some social science majors may still find it more difficult than their technically trained classmates to land the first job, recent graduates report that they don’t regret their choice of study.
76. What’s the main idea of the passage? (Please answer within 10 words.)
_________________________________________________________________________
77. Which sentence in the passage can be replaced by the following one?
For instance, a study showed that social science majors had held more important positions, compared to those technically trained students.
________________________________________________________________________
________________________________________________________________________
78. Fill in the blank with proper words or phrases to complete the sentence. (Please answer within 5 words.)
_________________________________________________________________________
79. What have you learned about the social science majors in finding a job in this high-tech “Information Age”? (Please answer within 30 words.)
________________________________________________________________________________________________________________________________________________
80. Translate the underlined sentence in the second paragraph into Chinese.
________________________________________________________________________________________________________________________________________________
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