题目列表(包括答案和解析)
Europe’s deadly outbreak of a rare form of E. coli bacteria (大肠杆菌) has brought new attention to food safety issues. One of the problems when people get sick from food is that the simplest question is often difficult or even impossible to answer. Just what did the people eat that made them sick?
Of course, one way to avoid these medical mysteries is to keep dangerous organisms out of the food supply. This is easier said than done, but scientists keep looking for new ways.
Scientists in the United States have developed an experimental system that uses a high-tech optical scanner. The system is designed to identify the presence of contaminants(致污物) like soil or animal waste on fresh produce. These can be sources of E. coli. E. coli bacteria naturally live in the intestines(肠) of humans and many animals. Most kinds of E. coli are harmless but some can make people sick.
The new scanner can also show damage and imperfections that might make the produce unappealing to shoppers.
Scientists designed the system at a Department of Agriculture research center in Beltsville, Maryland. Moon Kim of the Agricultural Research Service led the team.
MOON KIM: “We were requested, we were asked, to develop a method to detect contamination in produce. So we started with the apple as the model sample.”
The scanner uses a high-speed camera placed over the conveyer belt that moves the produce along. As the apples move along the belt, the scanner captures images of each piece of fruit.
Moon Kim says the team hopes the system will be available before long.
MOON KIM: “We are targeting for development in commercial plants for the next several years.”
The scanner can direct a sorting machine to separate the bad apples from the good ones. The system is currently able to show the surface of only half the apple as it speeds by. The inventers hope to improve the process so it can show the whole surface.
1.What is the main topic of the text?
A．Bacteria. B．A high-tech scanner. C．A camera D．Food safety.
2.E. coli bacteria ______.
A．broke out all over the world B．comes from soil or animal waste
C．is extremely harmful to health D．does not cause illness
3.The high-tech scanner ______.
A．can help to sort out different fruits
B．make the produce appeal to shoppers
C．can only capture images of the whole apple
D．can identify the presence of contaminants
4.What can be inferred from the text?
A．The scanner needs to be improved.
B．The scanner will be available in the next several years.
C．Moon Kim is unwilling to develop the scanner.
D．The scanner is connected to a sorting machine.
The job market has changed and our to finding work must change as well.
A. way B. method C. means D. approach
United States and Canada are multicultural countries with many national, religious and cultural differences, where people attach great importance to individualism—the uniqueness among people. Teachers value the qualities that make each student special and different. You can see such values through their educational systems. For example, students needn’t memorize lots of information. Instead, they work independently and find answers on their own. There are discussions for children to show their own ideas and opinions.
By contrast, people have the same language, history, and culture in most Asian societies. As a result, Asia’s educational system reflects society’s belief in group goals and purposes rather than individualism. Children in China, Japan, and Korea learn to work together and help one another in assignments. And the teaching methods are often very formal and serious. In class, teachers give lectures while students listen and take notes. Discussion is replaced by reciting rules of information that have been memorized.
These two systems both have advantages and disadvantages. One advantage in Japan is that there is much more math and science than American students learn by the end of high school. In addition, students study more hours each day and more days each year than North Americans do. The difficult system also prepares students for a society that place emphasis on discipline（纪律） and self-control. However, while memorization is an important learning method in Japanese schools, yet many students admit forgetting much of the information that they have memorized after exams.
On the other hand, the educational system in North American has an advantage that students learn to think for themselves, which prepares them for a society that values creativity. The disadvantage is that when they graduate from high school, they haven’t recited as many basic rules and facts as students in other countries have.
1.People in multicultural countries such as the US or Canada lay more stress on __________.
A．team work B．self-control C．discipline D．individualism
2.What is the advantage of the educational system in North America？
A．There is not much discussion.
B．Learning to think for themselves
C．Learning much less math and science
D．They haven’t memorized basic rules and facts.
3.Which words is most suitable to describe the author's attitude in writing this passage?
A．Supportive B．Opposite C．Objective（客观） D．Subjective（主观）
4.The main idea of this passage is___________.
A．cultural differences in countries such as the United States or Canada
B．comparisons of educational system between North America and Asia
C．there are more advantages of Asian education system of than that of North American
D．there are more disadvantages of Asian education system than that of North American
We can offer you a place at one of the best universities in Britain. We’ll provide you with a choice of 150 first-class courses developed especially to enable you to study in your own time. All of these courses are backed by the Open University’s own special study method — OU Support Open Learning.
We’ll give you the support of a personal teacher, and the chance to meet your fellow students. You can study for a diploma, a degree or a postgraduate degree. Subjects available include: Computing, Business Management, Technology, Modern Languages, Social Sciences, English Law, Arts, Science, Mathematics, Education and Health & Social Welfare.
Whether you want to study to improve your career prospects or for your own personal interest, there’s almost certainly a course for you. If you haven’t studied for a while, we will help you get started. No previous training or degrees are required. All that is required is a willingness to learn. The OU is great value for money and you can pay monthly.
The OU leads the world in the use of new technology for learning, and a number of courses provide source material on CD-ROM. What else can the Open University offer you?
☆ The OU is in the top 15% of all UK universities for teaching quality.
☆ 25% of all British MBAs come from the OU.
☆ Over 30,000 employers have offered chances for their staff to study OU courses.
☆ 40,000 OU students study online from their home.
☆ There are 9-month courses and diplomas as well as degrees.
Send for your free instructions now.
Post to: The Open University, PO Box 625, Milton Keynes MK76 AA, U99LX.
1.The purpose of writing this passage is to _________.
A．introduce the best university inBritain
B．let the readers know the OU Support Open Learning
C．describe the new technology for learning in the Open University
D．attract students to the Open University
2.If you want to study in the Open University, you need ________.
A．a good study habit
B．some previous training
C．a willingness to learn
D．a degree from a good university
3.The Open University can offer you all of the following EXCEPT ______.
A．an MBA degree
B．high-quality teaching
C．a computer so you can study online from home
D．9-month courses and diplomas as well as degrees
It was the night before the composition was due. As I looked at the list of topics , "The Art of Eating Spaghetti (意大利面条) " caught my eye. The word "spaghetti" brought back the 36 of an evening at Uncle Alien' s in Belleville 37 all of us were seated around the table and Aunt Pat 38 spaghetti for supper. Spaghetti was an exotic (外来的) treat in 39 days. Never had I eaten spaghetti, and 40 of the grown-ups had enough experience to be 41 it. What laughing 42 we had about the 43 respectable method for moving spaghetti from plate to mouth. 44 , I wanted to write about that, but I wanted to 45 it down simply for my own 46 , not for Mr. Fleagle, my composition teacher. 47 , I would write something else.
When I finished it the night was half gone and there was no 48 left to write a proper composition for Mr. Fleagle. There was no choice next morning but to 49 my work. Two days passed before Mr. Fleagle returned the 50 papers. He said, "Now, class, I want to read you a composition, “The Art of Eating Spaghetti'. "
My words! He was reading my words out 51 to the whole class. 52 laughed, then the whole class was laughing with open-hearted enjoyment. I did my best not to show 53 , but what I was feeling was pure happiness, 54 my words had the power to make people 55 .
|
1. |
|
|
2. |
|
|
3. |
|
|
4. |
|
|
5. |
|
|
6. |
|
|
7. |
|
|
8. |
|
|
9. |
|
|
10. |
|
|
11. |
|
|
12. |
|
|
13. |
|
|
14. |
|
|
15. |
|
|
16. |
|
|
17. |
|
|
18. |
|
|
19. |
|
|
20. |
|
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com