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Why is it a problem if all the smaller fish species die？
A. It's not healthy for the environment.
B. People only like to catch big fish.
C. There are too many small fish.
D. The smaller fish can get lost in the lake.
答案
更多“Why is it a problem if all the smaller fish species die？ A. It's not healthy for the”相关的问题
第1题
I wonder why he______to discuss the problem at the meeting.
A．declined
B．rejected
C．refused
D．A／C
第2题
A.Good
B.Quite well
C.No problem
D.Not bad
第3题
A．smoking reduces the oxygen carrying capacity of his blood
B．smoking and drinking make him malnourished
C．the problem of deficient oxygen supply and malnourishment act synergistically
D．it's the normal metabolism
第4题
A. Isn't she your girlfriend
B. They said she had left for London
C. What's the problem
D. Her office left you a message
E. Why not invite me, then
F. They said they had phoned Linda
G. The manager of their office had suddenly fallen iii
H. Sorry, I lost my way
A: Are you phoning Linda？
B: Yes. But how did you know？
A: (56)
B: What did they say？
A: (57)
B: What happened？
A: (58) . She had to go and take his place for three days.
B: That's too bad.
A: (59) ？
B: You see, I had arranged for us to have a dinner with a friend tonight.
A: (60) ？
B: Sure. Why not？
第5题
First, the person must recognize that there is a problem. For example, Sam' s bicycle is bro ken. Sam must【24】that there is a problem with his bicycle. Next the person must【25】the problem. Sam can repair his bicycle, he must know why it does not work. Now the person must look for【26】that will make the problem clearer and lead to possible solutions. Suppose Sam decides that his bike does not work because there is something wrong with the brakes. At this time he can look in his bicycle repair book and【27】his friends at the bike shop. After【28】.the problem, the person should have several suggestions for a possible solution. In the end, one suggestion seems to be the solution【29】the problem. Sam, for example, suddenly sees there is a piece of chewing gum(口香糖) stack to a brake. What he will do is to clean the brake. Finally the solution is【30】. Sam does it and finds his bicycle works perfectly. In short he has solved the problem.
(56)
A．serious
B．usual
C．similar
D．common
第6题
Caterpillar Tractor, one of the largest producers of farm machinery in the world, has hired you to advise them on pricing policy. One of the things the company would like to know is how much a5 percent increase in price is likely to reduce sales. What would you need to know to help the company with this problem？ Explain why these facts are important.
第7题
Why do we go wrong about our friends or our enemies？ Sometimes what people say hides their real meaning. And if we don' t really listen closely we miss the feeling behind the words. Suppose someone tells you, "You' re a lucky dog." That' s being friendly. But "lucky dog？" There' s a bit of envy in those words. Maybe he doesn' t see it himself. But bringing in the "dog" puts you down a little. What he may be saying is that he doesn' t think you deserve your luck.
"Just think of all the things you have to be thankful for is another noise that says one thing and means another. It could mean that the speaker is trying to get you to see your problem as part of your life as a whole. But is he？ Wrapped up in this phrase is the thought that your problem isn' t important. It' s telling you to think of all the starving people in the world when you haven't got a date for Saturday night.
How can you tell the real meaning behind someone' s words？ One way is to take a good look at the person talking. Do his words fit the way he looks？ Does what he says agree with the tone of voice？ His posture？ The look in his eyes？ Stop and think. The minute you spend thinking about the real meaning of what people say to you may save another mistake.
This passage is mainly about ______.
A．how to interpret what people say
B．what to do when. you listen to others talking
C．how to avoid mistakes when you communicate with people
D．why we go wrong with people sometimes
第8题
But the article is actually quite optimistic, as it outlines a potential solution to this problem, suggesting that an approach(which involves a one-hour, next-to-no-cost program) can close 63 percent of the achievement gap(measured by such factors as grades)between first-generation and other students.
The authors of the paper are from different universities, and their findins are based on a study involving 147 students(who completed the project)at an unnamed private unive rsity．First generation was defined as not having a parent with a four-year college degree Most of the first-generation students(1 percent) were recipients of Pell Grants，a federal g rant for undergraduates with financial need，while this was true only for 8.6 percent of the students wit at least one parent with a four-year degree Their thesis-that a relatively modest inte rvention could have a big impact-was based on the view that first-gene ration students may be most lacking not in potential but in practical knowledge about how to deal with the issues that face most college students They cite past resea rch by several authors to show that this is the gap that must be na rrowed to close the achievement gap.
Many first-gene ration students"struggle to navigate the middle-class culture of higher education，learn the&39;rules of the game，&39;and take advantage of college resou rces," they write And this becomes more of a problem when collages don&39;t talk about the class advantage and disadvantages of different groups of students Because US colleges and universities seldom acknowledge how social class can affect students&39; educational expe rience，many first-gene ration students lack sight about why they a re struggling and do not unde rstand how students&39; like them can improve .
26. Recruiting more first-generation students has__________________
A.reduced their dropout rates
B.narrowed the achievement gao
C.missed its original purpose
D.depressed college students
The author of the research article are optimistic because__________________A.the problem is solvable
B.their approach is costless
C.the recruiting rate has increased
D.their finding appeal to students
The author of the paper believe that first-generation students__________________A.a re actually indifferent to the achievement gap
B.can have a potential influence on othe r students
C.may lack opportunities to apply for resea rch projects
D.are inexperienced in handling their issues at college
The study suggests that most first-gene ration students__________________A.study at private universities
B.are from single-pa rent families
C.are in need of financial support
D.have failed their collage
We mayinfer from the last paragraph that--A.universities often rect the culture of the middle-class
B.students are usually to blame for their lack of resources
C.social class g reatly helps en rich educational experiences
D.colleges are partly responsible for the problem in question
请帮忙给出每个问题的正确答案和分析，谢谢！
第9题
Started just five years ago by brothers Lee and Alan Jones, the organisation has grown from a small company employing five people to a multi-divisional organisation employing 120 people.
The organisation’s production facility is divided into three separate departments. Each department has a single manager with supervisors assisting on the production lines. The managers and supervisors, all of whom are aware of their roles, work well together. However, although the organisation has grown, the owners continue to involve themselves in day to day activities and this has led to friction between the owners, managers and supervisors.
As a result a problem arose last week. Alan Jones instructed a supervisor to repair a machine on the shop floor, which he refused to do without confirmation and instruction from his departmental manager. The supervisor’s manager,Dean Watkins, became involved and was annoyed at what he saw as interference in his department’s activities. Dean told Alan Jones that he “should have come to me first” because although the responsibility for the overall organisation was a matter for the brothers, action taken in the factory was his through powers that had been delegated to him and through his authority, as manager. In the argument that followed, Alan Jones was accused of failing to understand the way that the hierarchy in such a large organisation operates and that interference with operational decisions by senior management was not helpful.
As a consequence of this, Alan Jones has asked you to explain to him and his brother the issues behind the dispute to clarify the roles of managers and supervisors and to indicate how and why successful delegation might be achieved.
Required:
(a) Explain to Alan Jones the main differences between the work of a manager and that of a supervisor.
(13 marks)
第10题
Allow me to share why you have to take art class.
First and most important,it stimulates creativity(激发创造力) Art schools encourage you to think outside the box and be creative enough to create something artistic.It can be used not only in art but in life,too.
Besides,it helps you make the right choice. In art class, you are usually free to do what you want. In every art class, you are required to make decisions that can determine what your painting will turn out to be.
In addition, students can learn the art of critical(批判性的) thinking as a skill of observation(观察). For example, art students find ways to imagine, That is a skill they need to beome better readers and problem settlers.
What is more,it is noted that the company&39;s bosses are actively looking for employees who can think creatively. Creative thinking is one of the most important skills that students can learn in art courses.
Finally, students who are trained in art class have interesting mental habits. They low to work on a task for a long time and how to continue to work even if they are discouraged. They are better for creating a link between the classroom and the outside world. In addition,children who do art work are able to look back on their work and make iudgments about themselves.
Why are art programs removed from many schools？
A.To make students have their own hobbies
B.To improve students’test scores and save money.
C.To help students master some job skills
D.To give students more free time
What is the most important quality students develop in art class？A.Determination
B.Carefulness
C.Creativity
D.Honesty
What can we learn from the text？A.Art students are easily employed.
B.Art programs may bring a lot of money.
C.Art class can help students in many ways.
D.Art teachers should pay more attention to tests.
第11题
The marvel of the machine age, the electronic computer has been in use only since 1946. It can do simple computations—add, subtract, multiply, and divide—with lightning speed and perfect accuracy. It can multiply two 10-digit numbers in 1/1, 000 second, a problem that would take an average person five minutes to do with pencil and paper. Some computers can work 500, 000 times faster than any person can.
Once it is given a program, that is, a carefully worked-out set of instructions devised by a technician trained in computer language, a computer can gather a wide range of information for many purposes. For the scientist it can get information from outer space or from the depths of the ocean. In business and industry the computer prepares factory inventories, keeps track of sales trends and production needs, mails dividend checks, and makes out company payrolls. It can keep bank accounts up to date and make out electric bills. If you are planning a trip by plane, the computer will find out what route to take and what space is available.
Why does the author regard the electronic computer as the marvel of the machine age？
A．Because electronic computers are rare.
B．Because people know little about electronic computers.
C．Because electronic computers can do much more kinds of work that human beings can't.
D．Because electronic computers have been widely suspected.
