北京四中11-12学年高二上学期期末英语试题
概要： waves. 71. Which of the following is true according to the passage? A. The water of a wave moves away across the sea. B. The water of a wave remains almost at the same place. C. The waster of a wave goes with the passing of the ware. D. The length of a wave means the distance from the top of a wave to the bottom. 72. The speed of Wave 1 is100cm/s, frequency 10. The frequency of Wave 2 is 300, while its speed is twice that of Wave 1. Which of the following is right? A. The wavelength of the two is equal. B. The wavelength of Wave 1 is 10 times longer than that of Wave 2. C. The wavelength of Wave 2 is longer than that of Wave 1. D. The wavelength o
北京四中11-12学年高二上学期期末英语试题,http://www.qinxue5.comIf we want to find the speed of a wave, we may use the following way：
Speed=wavelengthfrequency
Here, wavelength is the distance between two high points（）
A. Earthquakes and nothing else. B. Only wind.
C. Wind causes most waves. D. Wind causes some waves.
71. Which of the following is true according to the passage?
A. The water of a wave moves away across the sea.
B. The water of a wave remains almost at the same place.
C. The waster of a wave goes with the passing of the ware.
D. The length of a wave means the distance from the top of a wave to the bottom.
72. The speed of Wave 1 is100cm/s, frequency 10. The frequency of Wave 2 is 300, while its speed is twice that of Wave 1. Which of the following is right?
A. The wavelength of the two is equal.
B. The wavelength of Wave 1 is 10 times longer than that of Wave 2.
C. The wavelength of Wave 2 is longer than that of Wave 1.
D. The wavelength of Wave 1 is longer than that of Wave 2.
Readingto dogs is an unusual way to help children improve their literacy skills. With their shining brown eyes, wagging tails, and unconditional love, dogs can provide the nonjudgmental listeners needed for a beginning reader to gain confidence, according to Intermountain Therapy Animals （）（）
The Salt Lake City Public Library is sold on the idea. “Literacy specialists admit that children who read below the level of their fellow pupils are often afraid of reading aloud in a group, often have lower self-respect, and regard reading as a headache,” said Lisa Myron, manager of the children’s department.
Last November, the two groups started “Dog Day Afternoon” in the children's department of the main library. About 25 children attended each of the four Saturday-afternoon classes, reading for half an hour. Those who attended three of the four classes received a “pawgraphed” book at the last class.
The program was so successful that the library plans to repeat it in April, according to Dana Thumpowsky, public relations manager.
A. Children’s reading difficulties. B. Advantages of raising dogs.
C. Service in public library D. A special reading program.
A. dogs are young children's best friends
B. children can play with dogs while reading
C. dogs can provide encouragement for shy children
D. children and dogs understand each other
A. uses dogs to attract children
B, accepts the idea put forward by ITA
C. has opened a children's department
D. has decided to train some dogs
A. a book used in Saturday classes B. a book written by the children
C. a prize for the children D. a gift from parents
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Here are some advertisements taken from a newspaper.
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The Doctor Virgil and Marjorie Lawlis are pleased to announce the engagement of their daughter Diane Susan to Mr. Robert Brent Clarks, son of Mr. and Mrs. James Clarks ofHerford,Texas.
A spring wedding is planned in House.
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