题型:阅读选择 题类: 难易度:普通
江西省吉安市2023-2024学年九年级下学期期中英语试题
"Have you ever heard that it's impossible to fold a piece of paper more than seven times? Actually, it is just a popular myth.
The myth refers to folding a piece of paper in half many times in any direction. The paper is folded in half. Try it for yourself with a piece of notebook paper. ____ But when you make the fifth and sixth folds, you'll notice that it's increasingly hard to fold the paper. Why does it happen? Because the number of the layers (层) of paper doubles with each fold. For example, after the sixth fold, you're left with 64 layers of paper. If you have strong hands, you may be able to make that seventh fold. If you start with a piece of paper that is 0.01 centimeters thick, it'll be as thick as a notebook after seven folds. And it would seem impossible to make more folds. At this point, you may be thinking that the paper-folding myth doesn't sound much like a myth.
However, in 2002, a high school student named Britney Gallivan proved the idea wrong. Britney successfully folded a 1.20-meter-long roll of toilet paper 12 times (note that she used single-direction folding). She also developed a math rule. This is convenient. It allows you to find out the maximum (最大的) number of possible folds based on paper thickness, paper length, and direction of folding.
Since Britney's success, many people have managed to fold a single piece of paper more than 7 times. Students even folded a piece of toilet paper a total of thirteen times. The toilet paper they used was about 4,000 meters long!
drive for usually classroom cost or introduce Europe thousand rules |
Have you ever driven through a red traffic light? Have you ever parked in the wrong place or driven faster than the speed limit (限制)? The answers are probably "yes". Every year {#blank#}1{#/blank#} of drivers become "offenders" (违法者)—they break the rules of the road. But what are punishments {#blank#}2{#/blank#} this offence?
In most countries drivers have to pay a fine (罚款), {#blank#}3{#/blank#} $100—$300. But in the USA, Australia and some {#blank#}4{#/blank#} countries offenders also get points on their driving license (驾照). After they get a certain number of points, they can't {#blank#}5{#/blank#}.
Life is difficult when you can't drive. So far some states in the USA have {#blank#}6{#/blank#} a new way to avoid this——Traffic School. Offenders have a choice: They can get points on their license {#blank#}7{#/blank#} they can do a course at Traffic School.
Traffic Schools run "driver improvement courses". They {#blank#}8{#/blank#} about $100 and take from four to twelve hours. Most people do the course in a {#blank#}9{#/blank#}, but in some states drivers can do the course online. Drivers learn the {#blank#}10{#/blank#} of the road and they learn how to be better drivers. They don't have to take a driving test, but at the end of the course they have to pass a written examination.
can find call answer what your nice a at telephone be set |
Hello, I am Mary. There{#blank#}1{#/blank#} a Lost and Found box in our school. This morning in the classroom, I can't{#blank#}2{#/blank#} my English book, so I look for it in the box. Let's look at the notices in the box. Someone lost{#blank#}3{#/blank#} computer game. If it's {#blank#}4{#/blank#} , you can ask the teacher for it. Is this your watch? If the{#blank#}5{#/blank#} is "yes", please e-mail John{#blank#}6{#/blank#}JohnSmith@163. com. There are two {#blank#}7{#/blank#}of keys in the school library. Are these yours? {#blank#}8{#/blank#} about the notebook? If it is yours, you can{#blank#}9{#/blank#} Tom. His{#blank#}10{#/blank#} number is 783-4910.
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