题目
题型:不详难度:来源:
Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences,. have spent several years researching how crops, such as rice, could be made to grow in water that has become salty. The pairs have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice.
It is estimated that each year more than 10 million hectares (公顷) of agricultural land are lost because salt gets into the soil and stunts(防碍生长) plants. The problem is caused by several factors. In the tropics, mangroves that create swamps (沼泽) and traditionally formed barriers to sea water have been cut down. In the Mediterranean, a series of droughts have caused the water table to drop, allowing sea water to seep (渗透) in. In Latin America, irrigation often causes problems when water is evaporated by the heat, leaving, salt deposits behind.
Excess salt then enters the plants and prevents them functioning normally. Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.
To overcome these problems. Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants’ growth. They have started to breed these characteristics into a new rice crop, but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.
Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again, providing much needed food for the poorer countries of the world.
4. Which of the following statements about Flowers and Yeo is true?
A. They are students at Sussex University. B. They are rice breeders.
5. Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
A. Natural barriers to sea water have been destroyed.
B. The water table has gone down after droughts.
C. Sea level has been continuously rising.
D. Evaporation of water leaves salt behind.
6. The word "affect" in Paragraph 5 could be best replaced by________.
A. influence B. effect C. stop D. present
7. The attitude of the author towards the research project is________.
A. positive B. negative C. suspicious D. indifferent
答案
4-7 DCAA
解析
4. 推断题。从第二段中的Tim Flowers and Tony Yeo,from Sussex University’s School of Biological Sciences,have spent several Years researching how crops,可知,他们是来自大学的老师,他们是搭档,而不是夫妻,所以可以排除A项和C项;B项的意思更不正确。
5. 细节题。A项内容与文章中的traditionally formed barriers to sea water have been cut down一致,B项内容与文章中的a series of droughts have caused the water table to drop一致,D项内容与文章中的when water is evaporated by the heat一致,而C项内容在文章中根本没有谈到。
6. 词义题。我们可以根据句子的意思作出推断。
7. 推断题。从文章最后一段可以看出,作者对这种实验是“肯定的”。主要表现在Land that has been abandoned to nature will then be able to. bloom again,providing much needed food for the poorer countries of the world,作者认为如果该实验成功的话,废弃的土地又会肥沃起来。
核心考点
试题【British scientists are breeding a new generation of rice plants that will be abl】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Washoe was born in 1965 in Africa, where she was captured by the Air Force and taken to the US for research use in the space program. In 1966, she left the program and began living with two scientists, Allen and Beatrix Gardner, who led a project to teach the chimp American Sign Language (ASL) in Washoe, Nevada, for which it was named. Washoe had been living on Central Washington University’s Ellensburg Campus since 1980. She had a vocabulary of about 250 words. Also, Washoe taught sign language to three younger chimps: Tatu, 31, Loulis, 29, and Dar, 31
Primate (灵长类) researcher Jane Goodall, in Fouts’ book Next of Kin, noted the importance of the work with Washoe. “Roger, through his ongoing conversations with Washoe and her extended family, has opened a window into a chimpanzee’s mind,” Goodall said.
Though previous efforts to teach chimps spoken languages had failed, the researchers believed there was a better chance using signs. But Washoe’s language skills were disputed by scientists who believed that language is unique to humans. Among those who doubted that chimps could use language were linguist (语言学家) Noam Chomsky and Harvard scientist Steven Pinker. They believed primates simply learn to perform certain acts in order to receive rewards, and do not acquire true language.
小题1:As for its first task, Washoe was involved with _______.
A.some space research |
B.a study on African animals |
C.an ASL project |
D.the program of training the Air Force |
A.was not successful |
B.led to the book Next of Kin |
C.won honor for Fouts |
D.made a difference |
A.supported |
B.studied |
C.questioned |
D.discussed |
A.The ASL project was first set up in Africa for the study on Washoe. |
B.Washoe may communicate with other chimps by signing. |
C.Washoe must have been able to speak 250 words or so. |
D.The researchers will prove that most chimps could use language. |
A.Washoe was the first animal to be taught human language. |
B.Washoe, the chimp, was named in honor of a place. |
C.There were four chimps in total at Ellensburg Campus. |
D.Chomsky believed primates only perform silent signs. |
There was yet another high school list I made. One day I came across a newspaper article about an English professor at a nearby state college. The article had a list of the “hundred most important books of Western Civilization.” “More than anything else in my life,” the professor told the reporter with finality , “these books have made me all that I am.” That was the kind of words I couldn’t ignore. I kept the list for the several months it took me to read all of the titles. Most books, of course, I hardly understood. While reading Plato"s The Republic, for example, I needed to keep looking at the introduction of the book to remind myself what the text was about. However, with the special patience and superstition (迷信) of a schoolboy, I looked at every word of the text. And by me time I reached the last word, pleased, I persuaded myself that I had read The Republic, and seriously crossed Plato off my list
小题1: On heating the teacher"s suggestion of reading, the writer thought _______.
A.one must read as many books as possible |
B.a student should not have a complicated idea |
C.it was impossible for one to read two thousand books |
D.students ought to make a list of the books they had read |
A.had plans for reading | B.learned to educate himself |
C.only read books over 100 pages | D.read only one book several times |
A.firmly | B.clearly | C.proudly | D.pleasantly |
A.explain why it was included in the list |
B.describe why he seriously crossed it off the list |
C.show that he read the books blindly though they were hard to understand |
D.prove that he understood most of it because he had looked at every word |
A.show how he developed his point of view |
B.tell his reading experience at high school |
C.introduce the two persons" reading methods |
D.explain that he read many books at high school |
Well, you may say, this is as it should be, a good idea. But think further. What happens? "Education" becomes the responsibility not of teachers, but of psychologists (心里学家). What happens then? Teachers worry too much about the psychological implications (暗示) of their lessons, and forget about the subjects themselves. If a child dislikes a lesson, the teacher feels that it is his fault, not the child’s. So teachers worry whether history is "relevant" to modern young children. And do they dare to recount stories about violence? Or will this make the children themselves violent? Can they tell their classes about children of different races, or will this encourage racial hatred? Why teach children to write grammatical sentences? Verbal expression is better. Sums? Arithmetic? No: Real-life mathematical situations are more understandable.
You see, you can go too far. Influenced by educational theorists, who have nothing better to do than to write books about their ideas, teachers leave their teacher-training colleges filled with grand, psychological ideas about children and their needs. They make elaborate, sophisticated (精致的,复杂的) preparations and try out their "modem methods" on the long-suffering children. Since one "modem method" rapidly replaces another the poor kids will have had a good bellyful by the time they leave school. Frequently the modem methods are so sophisticated that they fail to be understood by the teachers, let alone the children; even more often, the relaxed discipline so essential for the " informal" feelings the class must have, prevents all but a handful of children from learning anything.
8. People do not dare defend the old system mainly because under the old system________.
A. too much grammar was taught to children B. children were spoiled (宠坏)
C. children were treated as grown-ups D. children were made to learn passively(被动的)
9. What view do the modem psychologists hold?
A. Children must be understood and respected.
B. Children are small adults and know what they need.
C. Children are better off without learning lessons.
D. Education of children is the responsibility of psychologists.
10. What happens when teachers pay too much attention to the psychology of their lessons?
A. They find that the children dislike the lessons.
B. They tend to blame students for their failure.
C. They do not pay enough attention to the actual lessons.
D. They no longer want to teach children history.
11. Grammatical sentences are regarded as unimportant because ________.
A. it is better to use verbs only
B. words are said out of natural feelings only
C. talking freely and naturally without sentences is a better form of expression
D. it is felt that formal grammar rules might cause unnatural expressions
12. According to the passage, the modern methods are understood by ________.
A. neither teachers nor pupils B. only a handful of teachers and pupils
C. the more sophisticated teachers D. everyone who enjoys the relaxed discipline of the informal classes
Living away from home tends to be the toughest adjustment for first-year students. You may feel homesick in your first weeks or months. It can help to call, write, or email your parents and friends making them know how you’re doing. You can also talk with your roommates. As first-year students themselves, they’re probably experiencing many of the same fears and worries that you’re dealing with.
But what if you don’t get along well with your roommates?
In some cases, it can be a good thing if you and your roommates aren’t much alike. Different views on things may be helpful, so respect your differences no matter what.
If you and your roommates don’t get along well, it can help to find someone who you feel does understand you, which should be easy on a campus with so many people. Many schools have student organization nights where all of the campus clubs gather and promote their organizations, so you can meet people with the same interests there as you. You’ll also meet tons of people in class or in your dorm building.
As homesickness, painful throats, sprained (扭伤的) ankles and wisdom teeth that act up are common among college students, you should check out your student guidebook or your school’s website to find out information about the university health center.
If you think you cannot deal with your problems, make a stop at the school counseling (咨询) center. First-year troubles are something the counselors know well. You can get help there.
小题1:From Paragraph 1 we can infer that ____.
A.Katie had been worried about the changes before starting her college life |
B.Katie felt satisfied when her college life started |
C.Katie wasn’t used to the new environment in college at first |
D.Katie has fallen behind in her study after the first semester in college |
A.Adjust to it. |
B.Share fears and worries with your parents. |
C.Talk to your roommates about it. |
D.Get along with your roommates. |
A.Not trying to change them. |
B.Not making friends with them. |
C.Developing the same interests as them |
D.Not talking with them. |
A.Freshmen may meet many problems. |
B.Communication is important in college. |
C.How you can adjust to your first year in college. |
D.How schools help freshmen to get used to college life. |
Before the trip, I’d had my car fixed. When the office employee of the garage was writing up the bill, she noticed my Louisiana license plate. “You from New Orleans?” she asked. I said I was, “No charge.” She said, and firmly shook her head when I reached for my wallet. The next day I went for a haircut, and the same thing happened.
As my wife was studying in Florida, we decided to move there and tried to find a rental house that we could afford while also paying off a mortgage(抵押贷款) on our ruined house. We looked at many places, but none was satisfactory. We’d began to accept that we’d have to live in extremely reduced circumstances for a while, when I got a very curious e-mail from a James Kemmedy in California. He’d read some pieces I’d written about our sufferings for state, the online magazine and wanted to give us (“no conditions attached”) a new house across the lake from New Orleans. It sounded a good to her return, but I replied, thinking him for his exceptional generosity, then we to go back. Then the University of Florida offered to let him house to me. While he want to England on his one year, paid leave. The rent was rather reasonable. I mentioned the poet’s offer to James Kemdedy, and the next day he sent a check covering our entire rent for eight months.
Throughout this painful experience, the kindness of strangers has done much to bring back my faith in humanity. It’s almost worth losing you wordy possessions to be reminded that people really when given had a channel.
小题1:The garage employee’s attitude toward the author was that of .
A.unconcern | B.sympathy | C.doubt | D.tolerance |
A.He was a written of an online magazine |
B.He was a poet at the University of Florida |
C.He offered the author a new house free of charge. |
D.He learned about the author’s sufferings. |
A.the author’s family was in financial difficulty |
B.rents were comparatively reasonable despite the disaster |
C.houses were difficult to find in the hurricane stricken area |
D.the mortgage on the ruined house was paid off by the bank |
A.wordy possessions can be given up when necessary |
B.generosity should be encouraged in some cases |
C.people benefit from their sad stories |
D.human beings are kind after all. |
A.Terrible Hurricane Katrina. |
B.Hurricane Is Heartless While Strangers Are Kind. |
C.Study in Florida. |
D.The Importance of Helping Others. |
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