1 . When I was a boy growing up in New Jersey in the 1960s, we had a milkman delivering milk to our doorstep. His name was Mr. Basille. He wore a white cap and drove a white truck. As a 5-year-old boy, I couldn’t take my eyes off the coin changer fixed to his belt. He noticed this one day during a delivery and gave me a quarter out of his coin changer.
Of course, he delivered more than milk. There was cheese, eggs and so on. If we needed to change our order, my mother would pen a note — “Please add a bottle of buttermilk next delivery” — and place it in the box along with the empty bottles. And then, the buttermilk would magically (魔术般) appear.
All of this was about more than convenience. There existed a close relationship between families and their milkmen. Mr. Basille even had a key to our house, for those times when it was so cold outside that we put the box indoors, so that the milk wouldn’t freeze. And I remember Mr. Basille from time to time taking a break at our kitchen table, having a cup of tea and telling stories about his delivery.
There is sadly no home milk delivery today. Big companies allowed the production of cheaper milk, thus making it difficult for milkmen to compete. Besides, milk is for sale everywhere, and it may just not have been practical to have a delivery service.
Recently, an old milk box in the countryside I saw brought back my childhood memories. I took it home and planted it on the back porch (门廊) . Every so often my son’s friends will ask what it is. So I start telling stories of my boyhood, and of the milkman who brought us friendship along with his milk.
1. Mr. Basille gave the boy a quarter out of his coin changer to __________.A.show his magical power | B.pay for the delivery |
C.satisfy his curiosity | D.please his mother |
A.He wanted to have tea there. | B.He was a respectable person. |
C.He was treated as a family member. | D.He was fully trusted by the family. |
A.Nobody wants to be a milkman now. | B.It has been driven out of the market. |
C.Its service is getting poor. | D.It is not allowed by law. |
A.He missed the good old days. | B.He wanted to tell interesting stories. |
C.He needed it for his milk bottles. | D.He planted flowers in it. |
Everyone
To link up the
3 . On paper, hydrogen(H2)looks like a dream fuel. Coal, oil, and natural gas produce carbon dioxide, which warms the earth when burned, Hydrogen produces pure water. Hydrogen packs more energy into less space than a battery(but certainly less than petrol). Also, empty tanks(燃料箱)can be refilled with hydrogen much faster than refilling empty batteries with electricity.
While in practice, things are trickier. Storing a meaningful amount of hydrogen gas requires pressing it several hundred-fold. Changing it into the liquid form is another option, but it should be cooled to-253C. Both processes require a heavy and strong tank. While a 700 bar tank is acceptable for a city bus or a truck, adapting it for use in small vehicles is very difficult because the pressure during refilling would be too great.
The solution? Powerpaste.
A German team of researchers, led by Marcus Vogt, have come up with an interesting "powerpaste", which can store hydrogen energy at atmospheric pressure, ready for release when needed. It is so named because it comes in tubes and looks like toothpaste(牙膏), not in its traditional form of gas.
The main ingredient(原料)of the paste is magnesium hydride, a substance that reacts with water to form hydrogen. The escaped hydrogen can then be directed into a fuel cell, where it reacts with oxygen from the air to produce electric power.
Refueling is very simple, as instead of going to a filling station, drivers and riders can simply replace an empty tube with a new one and refill the water tank.
Given that powerpaste only begins to break down at temperatures of around 250℃ it remains safe even when a vehicle stands in the baking sun for hours.
However, we will have to be patient. Just because researchers have succeeded in developing a new fueling way does not mean that we can expect to see such vehicles on the road anytime soon. It will indeed be several years before this concept is turned into reality.
1. As a fuel, what is the advantage of hydrogen over oil?A.Refilling empty tanks will be more convenient. |
B.It is less likely to worsen global warming |
C.More energy can be packed in the same space. |
D.It will produce pure water for people to drink. |
A.The practical difficulties to use hydrogen as fuel in small vehicles. |
B.The detailed processes of adapting a strong tank in small vehicles. |
C.The differences in fueling between large vehicles and small ones. |
D.The tricks of building strong tanks in small vehicles. |
A.inexpensive | B.powerful | C.convenient | D.environment-friendly |
A.Powerpaste-driven vehicles sometimes move very slowly on the road. |
B.Practical use of powerpaste-driven vehicles will not come very soon. |
C.Powerpaste-driven vehicles can only work after being in the sun for hours |
D.It will be years before the researchers work out the concept of powerpaste. |
1.家庭:
2.工作:
3.业余生活。
注意:1.词数100左右:
2.可以适当增加细节,以使行文连贯:
3.开头语已为你写好。
I often imagine what my life will be like in the future._______________________________
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5 . Beginning college is exciting: new ideas to explore, new challenges to meet and many decisions to make.Your future begins here.
However,you will find college life is different from your previous school environment.Many of us can be easily overwhelmed(压垮)by the details of running a well-balanced life.While some of us may have the know-how, I guess there are more of us who can benefit from learning about the experiences of others who have walked the college halls before you.
The following you may find of use about life on campus.
* Plan well.There are so many new things to do at a new college or university.Give yourself time to make new friends and become familiar with the campus, but don’t forget why you are there.Give some time for social activities and manage your time wisely.
* If you don’t have a “system” for planning your time now (like a day timer, a computer data book), get one.Most of all, don’t depend on your memory.
* Don’t miss the guidelines.The restrictions, rules and regulations of all kinds can usually be found in your student handbook.Consider them well-balanced food for thought.What dates are important? What pieces of paper need to be handed in? What can/ can’t you do in class? What can/ can’t you do in your student residence(住处)? Who has right for what? What do you need to complete to graduate?
* Write the word “STUDY” on the walls of our bedroom and bathroom, and maybe it will help to write it on a piece of paper and stick it on the telephone, TV and the kitchen table.Consider this—you are paying thousands of dollars for your courses.You pay every time you have to repeat or replace a course.
* Build your identity.This is the time for you to decide what to do and what not to do.Take as much time as you need to explore new ideas.Do not be afraid of the beyond.This is learning to make good choices.
1. What is the main purpose of the passage?A.To offer advice on college life. |
B.To explain why college life is exciting. |
C.To describe the importance of college life. |
D.To persuade you to go to college. |
A.Because you will have more freedom at college. |
B.Because you will no longer be afraid of the beyond. |
C.Because you prepare for your future career and life there. |
D.Because professors there will provide you with many new ideas. |
A.an understanding of how things are going at college |
B.practical knowledge about how to behave and what to do at college |
C.college halls where rules and regulations are presented |
D.an environment completely different from the one you’re used to |
A.needn’t learn from those who went to college before them |
B.spend as much time as possible on social activities |
C.should know what they have fought for on campus |
D.are supposed to repeat or replace at least one course |
Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is a relatively short period of time, so we may assume that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain’ s capacity. As time goes on , however , we shall have to use our brains more and more, and eventually we shall need larger ones! This is likely to bring about a physical change too: the head, in particular the forehead, will grow larger. Nowadays our eyes are in constant use. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over a very long period of time it is likely that man’ s eyes will grow stronger. On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life.
But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald.
Perhaps all this gives the impression that future man will not be a very attractive creature to look at! This may well be true. All the same, in spite of all these changes, future man will still have a lot in common with us. He will still be a human being, with thoughts and emotions similar to our own.
1. The passage mainly tells us that _______.
A.man’s life will be different in the future. |
B.future man will look quite different from us. |
C.man is growing taller and uglier as time passes. |
D.human’s organs’ functions will become weak |
A.He will be hairless because hair is no longer useful. |
B.He will have smaller eyes and will wear better glasses. |
C.His fingers will grow weaker because he won’t have to make use of them. |
D.He will think and feel in a different way. |
A.human beings will become more attractive in the future |
B.less use of a bodily organ may lead to its degeneration (退化). |
C.human beings hope for a change in the future life |
D.future life is always predictable |