题型：任务型阅读 题类：常考题 难易度：普通
江苏省如皋市2019-2020学年高一下学期英语期末教学质量调研试卷
Scientists have discovered a new kind of invisible ink. It's called water. And all you need for this secret-messaging ink to work is to write with it on a super-hi-tech piece of paper coated with special chemicals. It shows up darker than the surrounding paper under UV(紫外线的) light.
When the message has been read and needs to be hidden again, get out your hairdryer, and blow some warm air on the paper.
Using hot air from a hairdryer for 15-30 seconds, you were able to reuse the special paper up to 30 times because the heat reorganized the chemical structure of the paper coating.
The invention was made by a group of scientists in China, led by Qiang Zhao of the Institute of Advanced Materials, Nanjing University of Posts and Telecommunications.
Although much of modern communication is digital(数码的), there are still some situations in which it is important to send messages on a piece of paper, such as when the people don't have Internet. But the problem has always been how to get rid of a message once it has been shown so no one else can read it.
. To use it, write with the lemon juice on ordinary paper, iron (熨) the paper with a hot iron and the hidden message will appear. The downside (缺点) is that the paper has to be destroyed to hide the message so no one else can read it.
A. How to make the invisible ink? Follow the steps.
B. Invisible inks have long been used to send secret messages.
C. Without the heat, the message stayed visible for up to three months.
D. Previously, the most readily available invisible ink was lemon juice.
E. Shine a UV light on the coated paper and the water message becomes visible.
F. Then the message will be gone and the paper can be reused, which keeps costs low.
G. Putting water on the paper broke up the structure of the chemicals it was coated with.
I was ten when I first sat with my grandmother behind the cashier（收银台）in her general store. {#blank#}1{#/blank#} I quickly learned the importance of treating customers politely and saying “thank you.”
At first I was paid in candy{#blank#}2{#/blank#} I worked every day after school, and during the summer and on weekends and holidays from 8 a.m. to 7 p.m. My father helped me set up a bank account. {#blank#}3{#/blank#}
By the time I was 12, My grandmother thought I had done such a good job that she promoted me to selling cosmetics（化妆品）. I developed the ability to look customers directly in the eye. Even though I was just a kid, women would ask me such things as “What color do you think I should wear?” I took a real interest in their questions and was able to translate what they wanted into makeup（化妆）ideas. {#blank#}4{#/blank#}
The job taught me a valuable lesson: to be a successful salesperson, you didn't need to be a Rocket scientist—you needed to be a great listener. {#blank#}5{#/blank#} Except they are no longer women purchasing cosmetics from me; instead, they are kids who tell me which toys they would like to see designed and developed.
A．Later I received 50 cents an hour. B．Before long, she let me sit there by myself. C．I ended my selling a record amount of cosmetics. D．Today I still carry that lesson with me: I listen to customers. E．My grandma's trust taught me how to handle responsibility. F．Soon I found myself looking more beautiful than ever before. G．Watching my money grow was more rewarding than anything I could have bought. |
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