题目内容

2.The modern world is full of useful objects that were invented by someone,from spoons and chopsticks in our kitchens to the Ipads in our handbags Each invention is an example of the creative power of the human mind.Where do inventors get their inspirations(灵感)?The inspiration behind each of these inventions varies.
Take the shopping cart as an example.Sylvan Goldman was a grocery store owner.Like most businessmen,he wished that his customers would buy more so that he could make more money.He knew山at if they could carry more goods easily as they were shopping,山en his sales would go up.While thinking about the problem one night,he had an idea.Working with a local handyman named Fred Young,he designed the first shopping cart.Today,retailers who use shopping carts sell more goods and make more profits.
Nature has also inspired inventors throughout history.This is what happened to George de Mestral one day.While hunting with his dog in the Swiss Alps,he noticed how the burs(剌球) of certain plants stuck to his clothing and to his dog's fur.After examining them under a microscope,he found they had tiny hooks that could easily stick to the fibers of clothing or animal hide.For the next ten years,George de Mestral searched for the hest way to produce his idea.The result of his original inspiration was Velcro,which is used in many modem objects,including sportswear,shoes,automobiles,and even space suits.
These examples show us that there are at least two possible inspirations for human Creativity in the world of inventions-profit and nature.No doubt,the future will continue to breathe new life into the economies of the world with fresh ideas and inventions.How many of their creations will be inspired by natural phenomena?The world's problems require creativity and we can expect best solutions from future generations.
25.Why did sales go up in Sylvan Goldman's grocery store after he began providing shopping cartsD?
A.Because grocery stores without shopping carts made less money
B.Because he lowered the prices of his goods.
C.Because customers liked the shopping cart's creative design.
D.Because customers were able to carry more items when shopping.
26.According to the article,which invention shows how nature inspires usC?
A.The bur.B.The shopping cart.C.Velcro.D.Spoon.
27.Which of the following statements would the author most likely disagree withA?
A.The future does not promise many useful inventions.
B.There are many intereting inventions in the world today
C.Companies often  invent things out of profit.
D.Nature inspires creativity.

分析 本文属于说明文阅读,作者通过这篇文章向我们介绍了现代世界很多对我们有用处的发明,并举出了有关这些发明背后发生的事情的例子,如购物车的发明在开始时是为了让顾客多购买商品,而自然也对人类的发明作出了很大的贡献,在未来我们可能会见到更多有用的发明.

解答 25.D  推理判断题,根据第二段He knew that if they could carry more goods easily as they were shopping,then his sales would go up.While thinking about the problem one night,he had an idea.Working with a local handyman named Fred Young,he designed the first shopping cart.可知在戈德曼的杂货店提供购物车是因为他希望顾客能购买更多的商品,这样他也可以挣更多的钱,故选D.
26.C  细节理解题,根据第三段After examining them under a microscope,he found they had tiny hooks that could easily stick to the fibers of clothing or animal hide.For the next ten years,George de Mestral searched for the hest way to produce his idea.The result of his original inspiration was Velcro,which is used in many modem objects,including sportswear,shoes,automobiles,and even space suits.可知魔术贴的发明是受了大自然中一些可以粘在衣服或动物皮纤维上的植物的启发,故选C.
27.A  细节理解题,根据最后一段No doubt,the future will continue to breathe new life into the economies of the world with fresh ideas and inventions.可知作者认为在未来会有更多的发明,因此A选项错,故选A.

点评 考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.

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B.over 1million years ago
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D.400,000years ago
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B.Only three apes'genomes have been sequenced up to now.
C.Humans'ancestors stepped on their way of evolution 12to 16millions years ago.
D.Chimpanzees gain new genes faster than orangutans do in evolution.
76.The reason of orangutan's little change in DNA is thatB.
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B.the newly identified Alu elements is believed to have played a special role
C.Alu retrotranspositions in orangutan are shut off during the course of evolution
D.orangutan's low intelligence fails to stimulate the change of its DNA
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A.human and orangutan share the same ancestor,but chimp doesn't
B.humans and chimpanzees have evolved separately for millions of years
C.chimps failed to hang on to orangutan DNA for some unknown reason,but human didn't
D.chimps didn't act as actively as humans,resulting in their losing some critical orangutan DNA.

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