When will a plant be considered a weed? Experts have a simple answer: when the undesirable qualities outweigh (胜过，强过) the good qualities. Crops generally produce several hundred seeds from each plant. By comparison, each weed plant can produce tens or even hundreds of thousands of seeds. And some buried seeds can survive up to forty years or even longer. Eradicating weeds means that you have to remove all the seeds and roots so the weeds will die completely. But birds or the wind can reintroduce them to the land.
A common way to deal with weeds is to control them enough so that the land can be used for planting. Experts suggest using more methods to deal with weeds. Chemical weed killers or natural treatments like corn gluten (玉米麸) can suppress weed growth. Bill Curran is a professor of weed science. He says the most efficient method for suppressing weeds is dense planting. Dense planting of a crop can also act as a natural control. A dense and competitive crop that quickly shades the soil will help suppress many weeds. The weed seeds need light to grow, so cutting off sunlight will reduce weed growth.
Other controls include turning over the soil, pulling the weeds or covering them with mulch (地膜) made of wood, garden waste or other materials. But even mulch has its limits. Natural resource specialists point out that weeds can be transported in mulch. This is also true of soil, grain, hay and animals. Yet animals like sheep or goats eat weeds, so they can provide a biological control. Insects and other organisms can also act as biological controls.
Preventing the spread of weeds is an important part of weed management. Farm vehicles should be kept out of areas with weeds. If that is not possible, then clean off the equipment and your shoes when leaving. Some people bum weeds or bury them deep. Experts say the economical way is to make organically rich compost (有机堆肥). On the one hand, the process produces heat which can kill many weed seeds. On the other hand, the compost can be added to the soil to help plants grow.Why do people kill all the seeds and roots of weeds?
| A．Because the seeds and roots are bad in quality. |
| B．Because weeds have strong ability to live. |
| C．Because weeds take up too much space. |
| D．Because the seeds and roots will be eaten by birds. |
Which of the following methods of eradicating weeds can work best?
| A．Chemical weed killers. |
| B．Putting the com gluten in the field. |
| C．Dense planting. |
| D．Making use of mulch. |
How does dense planting affect weeds?
| A．The crops grow stronger than weeds. |
| B．The crops grow deeper in the soil. |
| C．The crops block sunlight the weed seeds need. |
| D．The crops compete with weeds for shade. |
What can we infer from the passage?
| A．The weeds will surely die under mulch. |
| B．The buried weed seeds can’t come out. |
| C．Farm vehicles should be used to kill weeds. |
| D．People can make good use of weeds properly. |
第三部分：阅读理解（共20小题；每小题1.5分，满分30分）
阅读下列短文，从每题所给的四个选项A、B、C、D中，选出最佳选项，并在答题卡将该项涂黑。
(A)
The basenji is a central African hunting dog. It comes from a country called Chad, which is north of the Central African Republic. The basenji was well—known as the "silent dog" because for centuries no basenjis has ever been known to bark . Then at a dog show in London in 1953, a basenji actually barked.
As well as being clever, basenjis are known for their natural courage and are still popular hunting dogs in Africa. But in America people keep them mainly because they are gentle and full of fun. The basenji has an unusual habit, it washes itself all over like a cat. It is a middle—sized dog, 16 or 17 inches high from the shoulder. It weighs about 20 pounds. A basenji's coat is short and silky. It may be brown, white, or gold , or a mixture of these three colours.
56. Basenjis were first found .
A. in Africa, Europe and America B. in both Africa and America
C. in central Africa D. in North Africa
57. What made Basenjis so special?
A. They were funny enough to make people laugh.
B. One of them barked at a dog show in London.
C. They were a true friend of man.
D. They were born quiet dogs.
58. In what way are basenjis like cats?
A. They make gentle sounds instead of barking.
B. They are fond of people and look like cats.
C. They clean themselves all over.
D. They have short, silky fur.
When we hear the words “college students”, we usually think of a young person between 18 and 22 years old. But in the U.S.A today, a college student often is much older. In fact, educators say in the nest few years colleges and universities may have more older part-time students than traditional (传统的) full time younger students.
Educators report a big increase in the number of Americans who attend college and university classes in the evening or at night or weekends. Most of them are older than 25 years old and more have full- time or part- time jobs. Many are in their thirties or forties.
Why are so many people deciding to spend their time and money in order to continue their education? Many are doing it because they believe more education will help them to get a better job. Some are industrial workers whose factories are closed. They are learning new skills to prepare for other kinds of work. Some of the part-time students are not pleased with the jobs they have. They are studying for new ones. Some have retired(退休) and are looking for new kinds of work. Two of every three of the students older than 35 are women. Many of them are returning to school after years of staying at home to care for children.
Are older students good students? Most teachers say yes. They say older students really want to learn. They ask difficult questions and are not pleased with simple answers. They often get high grades.
71. It’s said that in the next few years _________.
A. students in college and universities will be much older.
B. full-time students in college and universities will be even younger.
C. American colleges and universities will take in part-time students equally.
D. the number of older students will be greater than that of the younger ones.
72. Judge which of the following is not true according to the above passage.
A. It’s reported that a large number of American
s attend college or university classes in their spare time.
B. Most of them are over 25.
C. Most of them are without jobs.
D. The number of students in colleges and universities is reported to have gone up greatly.
73. Why are so many people deciding to go on with their education? Because________.
A. most of the Americans enjoy learning something new.
B. most of them believe: more education, better jobs.
C. they have lost their jobs.
D. they are tired of their jobs.
74. “ They often get high grades” means__________.
A. they rise to high grades easily.
B. they often get very good marks.
C. they are more likely to receive a master’s or a doctor’s degree upon graduation.
D. they often win high prize.
75. What does the whole passage mainly tell us?
A. Why does so many older students go to college in America.
B. What older students in college can learn.
C. Older students are mostly good students.
D. Higher education can help you get a good job.
In America, when people say “man’s best friend”, they don’t mean another person. Instead, they are talking about a lovely animal：A dog! These words show the friendship between people and animals. Dogs and other pets can give happiness to people’s lives. Some people think of their pets as their children. A few even leave all their money to their pets when they die!
Animals can help people, too. Dogs can be taught to become the “eyes” for a blind person or “ears” for a deaf people. Scientists have found that pets help people live longer! They make people happier, too. Because of that, animals are brought into hospitals for “visit”.
Americans hold “Be---Kind-to-Animals Week” in the first week of May.
Pets shows are held during the week. Even if you don’t live in America, you, too, can do this. How? First, think about how animals make your life richer. If you have a pet, take more time this week to play with it. Remember to give it delicious food. Also, be sure to keep your pet from those unwanted babies.
If you don’t have a pet, be kind to animals around you. For example, if you see a street dog, don’t kick it or throw things at it. Instead, just leave it alone, or better yet, make friends with it. If others around you do bad things to an animal, try to stop them. As people, we must protect animals who can’t speak for themselves.
66. “A few even leave all their money to their pets when they die!”means
that__________
A. pets have the right to inherit (继承) money.
B. money can give pets happiness
C. it’s the best way to spend money.
D. some pets are taken as children.
67. Why are dogs brought to hospitals?
A. Because they are ill and need to see doctors.
B. Because they can make the patients happier.
C. Because they can find out the problems of the patients.
D. Because doctors can do experiments on them
.
68. What’s the most popular activity in the “Be-Kind-to-Animals Week”?
A. Holding a pet show in the week.
B. Playing with pets the whole week.
C. Cooking delicious food for pets.
D. Making friends with other people’s pets.
69. What’s the passage mainly about?
A. A lot of people are interested in dogs.
B. Dogs can help people do many things.
C. Pets are lovely and need care and protection.
D. 
We have done a lot of things for pets.
70. The words“ man’s best friends”shows____________.
A. the friendship between people.
B. the friendship between people and animals.
C. the friendship between animals.
D. the friendship between men and women
Students who say they never or hardly ever used dictionaries may speak English well but usually write poorly, because they make many mistakes.
The students who use dictionaries most do not learn especially well either. The ones who look up every new word do not read fast. Therefore they do not have time to read much. Those who use small two-language dictionaries have the worst problems. Their dictionaries often give only one or two words as translations of English. But one English word often has many translations in a foreign language and one foreign word has many translations in English.
The most successful students are those who use large college edition dictionaries with about 100,000 words but do not use them too often. When they are reading, these students first try to get the general idea and understand new words from the context. Then they reread and use the dictionary to look up only key words that they still do not understand. They use dictionaries more for writing. If they are not sure how to spell a word, they alway
s use a dictionary. Also, if they think a noun might have an unusual plural form, they check this in a dictionary.
61. The writer thinks that .
A. choose a good dictionary, and you’ll be successful in learning English
B. dictionaries are not necessary to
the students who learn English
C. it is very important for students to use good dictionaries properly
D. using dictionaries very often can’t help to improve writing
62. According to the passage, which of the following is WRONG?
A. Dictionaries have little effect on learning to speak English.
B. Whatever new words you meet while reading, never use dictionaries.
C. Small two-language dictionaries have serious shortcomings.
D. Reading something for the first time, you’d better not use dictionaries.
63. When in the reading does the writer advise students to use a good dictionary?
A. At the beginning of the reading B. At the end of the reading
C. During the first reading D. After the first reading
64. This passage mainly tells us .
A. that students shouldn’t use small two-language dictionaries
B. what were the shortcomings of small two-language dictionaries
C. why students should use large college edition dictionaries
D. what dictionary students should choose and how to use it
65. Which is NOT mentioned in this passage?
A. How to make good use of a dictionary. B. When to use a dictionary.
C. How to improve spoken English. D. How to practice reading fast.
John Smith was a writer, who wrote detective stories for magazines, though he never dealt with criminals（罪犯）. One evening he could not finish an end for a story. He sat in his study（书房）, but he had no ideas. So he decided to go to the cinema.
When he came back, he found that he had had a visitor. Someone had broken into his house. The visitor had had a drink, smoked several of his cigarettes and had read his story. The visitor left him a note.
“I have read your story and I don’t think it is very good. Please read my suggestions and you can finish it. By the way, I am a thief. I’m not going to steal anything tonight. But if you become a successful writer, I will return.”
John read the thief’s suggestions. Then he sat down and wrote the rest of the story. He is still not a successful writer, and he is waiting for his “visitor” to return. Before he goes out in the evening, he always leaves a half-finished story in his study.
56. Detective stories are stories about .
A. science B. children C. the future D. the police
57. John went to the cinema because .
A. he was too tired
B. he wanted to look for a thief
C. he could not finish his story and hoped to get some ideas
D. he wanted to enjoy himself in the cinema
58. The visitor came to John’s house in order to .
A. steal something B. read the story C. have a drink D. visit the writer
59 The visitor .
A. stayed in John’s house for a night B. took some of John’s things away
C. left John some advice 
D. was a good friend of John’s
60. John would like to .
A. have a talk with his visitor
B. get more ideas from the visitor
C. make friends with the visitor
D. catch the visitor and take him to the police
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