题型：任务型阅读 题类：常考题 难易度：困难
牛津译林版九年级英语上Unit 1 Knowyourself. 单元测试（三）
Have you ever wondered what an American high school is really like? This article will describe a typical (典型的) high school and its students.
A typical American high school has several large buildings and enough space for about l, 500 students. Every student is given a locker. When students first arrive at school, they go straight to their lockers to put away or get their textbooks and to hang up their outdoor clothes. As American textbooks are expensive, students would rather loan (租借) than buy them. Students must pay back if they lose any of them.
American students have different types of school transport. They usually take a yellow school bus or walk to school if they live close enough. Sometimes their parents drive them to school. When they turn 16 years old, most take a free driving class at school for one term. If students earn passing grades in the class and also pass their state driver's exam, they can begin driving themselves to school.
Each day, students take six or seven classes. They must take Science, Maths, English and Social Studies. They can choose Art, Homemaking, Fashion Design and other classes. In some schools students are required to take one or more of the following special classes: Health Education, Physical Education or Foreign Language Studies. Students move to different classrooms for each subject. This is because each teacher has their own classroom. There is a five-minute break between classes, to give the students the time to hurry to their next class.
The regular school day usually ends early in the afternoon. After school more than half of the students are involved in after-school activities. These activities include sports-especially football, basketball, baseball and soccer or clubs, such as yearbook, speech, school newspaper, photograph or student government.
in an American high school | |
Outlines | Details |
Introduction | It gives an overview of a typical American high school and its. |
Lockers and textbooks | Every student has a locker for textbooks and clothes. They prefer loaning textbooks to them. |
transport | Students usually go to school by bus or on foot. Sometimes their send them to school by car. They can themselves to school when they are over 16 and have passed the required tests. |
Classes and classrooms | Students have to take main classes, elective classes and sometimes one or more classes. They go to classrooms for each subject. |
After-school activities | After school most of the students take in their favorite activities, including sports and clubs. |
A ratio compares two numbers. For example, if you have 3 pens and 4 pencils, the ratio of pens to pencils is 3 to 4. {#blank#}1{#/blank#} 3 to 4, 3:4 and 3/4. One type of ratio is expressing (表示) numbers as a percent. A percent is the ratio of a number to 100. In other words, a percent compares one number to 100. The percent means "per hundred". {#blank#}2{#/blank#} You can use "%" to express percent. So 35% means 35 out of 100, and 15% means 15 out of 100. {#blank#}3{#/blank#} Probability means the chance (可能) of some things happening in the future. For example, if there is a 90% chance of rain, 90 times out of 100, it will rain. That is a very high probability. However, if the weatherman says that there is only a 10% chance of rain, then 10 times out of 100, it will rain. {#blank#}4{#/blank#}
You can also express probability by using ratios. {#blank#}5{#/blank#} 5 of them are black while only 1 of them is red. If you choose a pen at random (随机地) from the pencil box, then the probability of choosing a black Den are 5 to 6, or 5/6. On the other hand, the probability of choosing a red pen is only 1 to 6, or 1/6.
| A. So, 60 percent of something means 60 out of 100. B. For example, perhaps you have 6 pens that all look alike in your pencil box. C. The ratio can be written in three ways. D. That is a very low probability. E. Percents are helpful when expressing the probability. |
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