職稱英語新增文章二
為大家提供“2016年職稱英語考試新增文章”,希望能給考生的備考帶來幫助。下面是小編帶來的,歡迎閱讀!
職稱英語考試新增文章一
Primer on Smell
In addition to bringing out1 the flavor of food, what does the sense of smell do for us?
Smell “gives us information about place, about where we are,” says Randall Reed, a Johns Hopkins University professor whose specialty is the sense of smell. 1 “Whether we realize it or not, we collect a lot of information about who is around us based on smell,,,says Reed.
Even at a distance, odors can warn us of2 trouble — spoiled food, leaking gas, or fire. “It’s a great alert,,,offers Donald Leopold, a doctor at Johns Hopkins. For example, if something in the oven is burning, everyone in the house knows it.
With just a simple scent, smell can also evoke very intense emotion. Let’s say, for example,that the smell is purple petunias. 2 Now let’s imagine that your mother died when you were three, and she used to have a flower garden. You wouldn’t need to identify the smell or to have conscious memories of your mother or her garden. You would feel sad as soon as you smelled that spicy odor.
Compared with3 animals, how well do people detect smelts?
That depends on what you mean by “how well”. We are low on receptor cells : current estimates say that humans have roughly five million smell-receptor cells,about as many as a mouse.
Reed says that, across species, there is a relatively good correlation between the number of receptor cells and how strong the sense of smell is. “You can hardly find the olfactory bulb in a
human brain it’s a pea-sized object. In a mouse, it,s a little bigger. It’s bean-sized in a rat, about
the size of your little finger in a rabbit, and the size of your thumb in a bloodhound.”
Does that mean that our sense of smell is not very acute?
Not exactly. While we may not have the olfactory range of other creatures, the receptors we do have are as sensitive as those of any animal. 4 A trained “nose,,,such as that of a professional in the perfume business, can name and distinguish about 10,000 odors. Reed says that a perfume expert can sniff a modem scent that has a hundred different odorants in it, go into the lab, and list the ingredients. “In a modest amount of time, he comes back with what to you or me would smell like a perfect imitation of that perfume. It’s amazing.”
What happens to4 our sense of smell as we age?
Many people continue to have good olfactory function as they get older. 5 Leopold says that smell is generally highest in childhood, stays the same from the teens through the 50s, and drops starting at about 60 for women and 65 for men. “The average 80-year-old is only able to smell things half as well as the average 20-year-old,says Leopold.
職稱英語考試新增文章二
lee Cream Taster Has Sweet Job
John Harrison has what must be the most wanted job in the United States. He’s the official taster for Edy’s Grand Ice Cream, one of the nation’s best-selling brands. Harrison’s taste buds are insured for $1 million. 1 And when he isn’t doing that, he travels, buying Edy’s in supermarkets all over the country so that he can check for perfect appearance,texture, and flavor.
After I interviewed Harrison, I realized that the life of an ice cream taster isn’t all Cookies ’n Cream 一 a flavor that* he invented, by the way. No, it’s extremely hard work, which requires discipline and selflessness.
For one thing,he doesn’t swallow on the job. Like a coffee taster, Harrison spits. Using a gold spoon to avoid “off’ flavors, he takes a small bite and moves it around in his mouth to introduce it to all 9,000 or so taste buds. 2 Then he breathes in gently to bring the aroma up through the back of his nose. Each step helps Harrison evaluate whether the ice cream has a good balance of dairy, sweetness, and added ingredients 一 the three-flavor components of ice cream. Then, even if the ice cream tastes heavenly, he puts it into a trash can. A full stomach makes it, impossible to judge the quality of the flavors.
During the workweek, Harrison told me that he has to make other sacrifices, too: no onions, garlic, or spicy food, and no caffeine. Caffeine will block the taste buds, he says, so his breakfast is a cup of herbal tea. 3
Harrison’s family has been in the ice cream business in one way or another1 for four generations, so Harrison has spent his entire life with it2. However, he has never lost his love for its cold, creamy sweetness. 4 On these occasions3,he does swallow, and he eats about a quart ***0.95 liters*** each week. By comparison4, the average person in the United States eats 23.2 quarts ***21. 96 liters*** of ice cream and other frozen dairy products each year.
Edy,s ice cream is available in dozens of flavors. So what flavor does the best-trained ice-cream taster in the country prefer? Vanilla! In fact, vanilla is the best-selling variety in the
United States
- 職稱英語新增文章二
- 祕書的個人總結應該怎樣寫呢
- 幼兒園古詩回鄉偶書教案
- 有哪些吸菸對人的危害
- 精索靜脈曲張的症狀
- 大腳趾頭麻是怎麼回事
- 動手打老婆的檢討書範文
- 如何通俗的理解借貸記賬法
- 給高考學生加油的話語
- 電腦老是卡屏不動怎麼辦
- 寶寶出汗怎麼辦
- 增強記憶力腦力的好技巧
- 勵志高清的手機桌布素材推薦
- 駝色毛衣怎麼搭配_打造溫柔氣質美
- 初中常考的英語語法知識點彙總
- 電腦錄音選項無法錄音怎麼辦
- 適合春季的戶外運動及其運動祕訣
- 老年人便祕怎麼辦吃什麼
- 怎樣去黑眼圈和眼袋
- 勞動法對高溫作業的最新規定
- 康熙字典五行屬金的字
- 康熙字典五行屬木的字
- 康熙字典五行屬水的字
- 康熙字典五行屬火的字
- 康熙字典五行屬土的字