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Barcodes(条形码) aren’t given much thought by the majority of consumers, but these codes were fairly recently applied in a working fashion in 1970.
A small food store owner decided one day that keeping records of the inventory(存货) of his stock and the associated prices were an extremely laborious process, and so, in 1948, he contacted The Drexel Institute of Technology in a bid to work towards a solution. Bernard Sliver rose to the challenge and set out to study the problem and began working on a solution involving an automatic way of keeping track of items that had been sold. Sliver and a group of students from the institute realized their answer in the form of ultraviolet light (紫外线), ink and a scanner.
The system worked initially, but possessed some negatives. It was incredibly costly to carry out on a large scale and the system was also unstable. If the invention was to become commonplace（寻常的事）in grocery stores, these two problems had to be solved.
The patent (专利) for the bar code system was filed by Sliver and one of his students, Woodland. The patent was not granted immediately; in fact, it took three years for the patent agency to grant their invention patent for the barcode, occurring on 7th October, 1952.
Despite the patent being issued, the system was still not welcomed by the majority of store owners. It was not until 1966 that the system began moving its way into more and more grocery stores. This system was soon criticized, as there was no central mechanism for controlling uniformly（统一地）coded items. In 1970, Logicom developed the Universal Grocery Products Identification code( UGOIC), soon shortened to Universal Identification Number (UPC). It was Marsh’s superstore, in Troy, which was the very first store to install this complex barcode reading system, and its popularity has soared(升温) ever since, and is obviously now commonplace in all types of stores worldwide.
1.What is stressed in the second paragraph?
A．The heavy work of store owners.
B．The function of ultraviolet light, ink and a scanner.
C．The origination of barcodes.
D．Bernard Sliver’s education background.
2.Which of the following was NOT a drawback of Sliver’s system?
A．It was expensive to be applied on a large scale.
B．It was a laborious process.
C．The system was not stable.
D．It lacked a central mechanism.
3.The popularity of the barcode rose quickly after________.
A．1948 B．1952 C．1966 D．1970
4.What is the purpose of the text?
A．To tell people that failure is the mother of success.
B．To praise scientists’ efforts in making people’s lives easier.
C．To describe shop owners’ opinions of barcodes.
D．To provide information about the development of barcodes.
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Barcodes (条形码) aren’t given much thought by the majority of consumers, but these codes were fairly recently applied in a working fashion in 1970.
A small food store owner decided one day that keeping records of the inventory (存货) of his stock and the associated prices were an extremely laborious process, and so, in 1948, he contacted the The Drexel Institute of Technology in a bid to work towards a solution. Bernard Sliver rose to the challenge and set out to study the problem, and began working on a solution involving an automatic way of keeping track of items that had been sold. Silver and a group of students from the institute realized their answer in the form of ultraviolet light (紫外线), ink and a scanner.
The system worked initially, but possessed some negatives. It was incredibly costly to carry out on a large scale and the system was also unstable. If the invention was to become commonplace (寻常的事) in grocery stores, these two problems had to be solved.
The patent (专利)for the bar code system was filed by Sliver and one of his students, Woodland. The patent was not granted immediately; in fact it took three years for the patent agency to grand their invention patent for the barcode, occurring on 7th October, 1952.
Despite the patent being issued, the system was still not welcomed by the majority of store owners. It was not until 1966 that the system began moving its way into more and more grocery stores. This system was soon criticised, as there was no central mechanism for controlling uniformly coded items. In 1970, Logicorn developed the Universal Grocery Products Identification code (UGOIC), soon shortened to Universal Identification Number (UPC). It was Marsh’s superstore, in Troy, which was the very first store to install this complex barcode reading system, and its popularity has soared (升温) ever since, and is obviously now commonplace in all types of stores worldwide.
1.What is stressed in the second paragraph?
A．The heavy work of store owners.
B．The function of ultraviolet light, ink and a scanner.
C．The origination of barcodes
D．Bernard Silver’s education background.
2.Which of the following was NOT a drawback of Silver’s system?
A．It was expensive to be applied on a large scale.
B．It was a laborious process.
C．The system was not stable.
D．It lacked a central mechanism.
3.What is the purpose of the text?
A．To tell people that failure is the mother of success.
B．To praise scientists’ efforts in making people’s lives easier.
C．To describe shop owners’ opinions of barcodes.
D．To provide information about the development of barcodes.
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The lack of eco-friendly habits among the public is thought to be a major ____ of global climate change.
A.result B.cause C.warning D.reflection
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The lack of eco-friendly habits among the public is thought to be a major _____of global climate change.
A. result B. cause C. warning D. reflection
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The lack of eco-friendly habits among the public is thought to be a major _____of global climate change.
A. cause B. result C. warning D. reflection
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The lack of eco-friendly habits among the public is thought to be a major _____________ of global climate change.
A. Result B. cause
C. warning D. reflection
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Self-esteem is all about how much we are valued, loved, accepted, and thought well of by others and how much we value, love and accept ourselves. People with healthy self-esteem are able to do better in school and find it easier to make friends. They tend to have better relationships with others, feel happier, find it easier to deal with mistakes and failures, and are more likely to stick to something until they succeed. People with low self-esteem may feel as if no one will like them or accept them or that they can’t do well in anything.
The following ways may help you improve your self-esteem.
Try to stop thinking negative thoughts about yourself. If you’re used to focusing on your shortcomings, start thinking about positive aspects of yourself that outweigh them. It is good to aim high, but your goals for yourself should be within reach. That’s why you should set practical goals and never expect the impossible. Mistakes are part of learning, so view mistakes as learning opportunities. Accept that you make mistakes because everyone does.
Also, you should recognize what you can change and what you can’t. If you realize that you’re unhappy with something about yourself, you can change and start from today. If it’s something you can’t change (like your height), start to work toward loving yourself the way you are.
Feeling like you’re making a difference or that your help is valued can do wonders to improve your self-esteem. So don’t hesitate to make a contribution. You can lend a hand to a classmate who’ s having trouble, help your neighborhood clean up, or volunteer to do some other things.
Self-esteem plays a role in almost everything you do. It’s never too late to build healthy self-esteem. It takes some work, and it’s a necessary skill you’ll have for life.
1. The underlined word “them” in Paragraph 3 refers to “______”.
A. your classmates B. your shortcomings
C. your strong points D. your goals
2. According to the passage, which of the following can help improve your self-esteem?
A. Setting high goals similar to others’.
B. Never forgiving yourself for your mistakes.
C. Lending a hand to a classmate in trouble.
D. Changing all the things that make you unhappy.
3. We can infer from the passage that ______.
A. the old tend to have healthier self-esteem than the young
B. we should build healthy self-esteem when young
C. there are more people with low self-esteem
D. it is not easy to build healthy self-esteem
4. The passage is mainly about ______.
A. how people improve their self-esteem
B. what self-esteem means
C. what people with low self-esteem are like
D. what people with healthy self-esteem are like
5. How many ways of improving your self-esteem are mentioned in the passage?
A. Five B. Six C. Seven D. Eight.
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Bob thought he couldn’t go to the party because he had too much homework, but persuaded by his friends, he went _________.
A. above all B. in all C. after all D. first of all
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10. By the middle of the 21st century , the vast majority of the world’s population ________ in cities rather than in the country.
| A．are living | B．will be living | C．have lived | D．will have lived |
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The vast majority of people can buy pretty much anything they need. Not anything they want, necessarily, but anything they need to achieve a satisfactory degree of creature comfort: clothing, water, shoes and food.
During my childhood, a Michael Pollan book would have been the prize of my year, were I to find it waiting under my Christmas tree or open it upon my birthday. I also used to be thrilled at receiving necessary things, like simple socks or gloves, as present. Nowadays I have too many gloves. I purchase leather gloves online that appear to be a good deal or just because I like their look.
Prosperity (富足) is a good thing, right? Yes, of course. But for me, I find that the greater ease with which such a generous gift is purchased, the less significance it has when given. This is why I try harder at gifts.
My first line of dealing with this problem is simply understanding the effect of a little time spent. Even writing out a thoughtful or funny card goes a lot further than a “cute top” purchased from a popular shopping website.
Need help? Go to your printer. There’s paper in there. Fold one sheet in half and draw a heart on the front. Open it up and fill the card with a poem or a few words of your own. Not only is it obvious that you took the time to select your words and write them down, but now you force the reader to stop for a short time and consider what you were trying to accomplish with them. The effort made by the two of you is the gift.
No matter how you decide to spend a little more time on your giving, the point is just quite simply that you do. You don’t have to give a person a handmade paper boat to get a reaction. But you won’t be sorry if you do.
1.What does the author think of his childhood gifts?
A. They weren’t what he wanted. B. They weren’t easy to get.
C. They looked good. D. They were useful.
2.What does the underlined part “this problem” in paragraph 4 refer to?
A. How to make a good deal. B. How to choose a popular gift.
C. How little a bought gift matters. D. I low long the time spent on gifts is.
3.A handmade card appears to be more significant because .
A. certain information is delivered
B. it provides a sense of achievement.
C. it takes the giver some time to finish it.
D. both the giver and the receiver are making an effort.
4.The author writes the text mainly to .
A. encourage readers to make gifts
B. advise readers to buy helpful gifts
C. inform readers of the importance of giving
D. persuade readers to make reasonable purchase