上海高考英語閱讀理解訓練附答案

　　英語閱讀在高考英語考試中佔有很大的分值，加強英語閱讀的練習十分重要。下面小編為大家帶來，歡迎同學們閱讀訓練。

　　上海高考英語閱讀理解訓練原文

　　Under proper conditions, sound waves will be reflected from a hillside or other suchobstruction***障礙***. Sound travels at the rate of about one-fifth of a mile per second. If the hillis eleven hundred feet away, it takes two seconds for the sound to travel to the hill and back.Thus, by timing the interval between a sound and its reflection, you can estimate thedistance to an obstruction.

　　During World War II the British used a practical application***應用*** of this law to detectGerman planes on their way to bomb London long before the enemy was near the target. Theyused radio waves instead of sound waves, since radio waves can make a way through fog andclouds. The outnumbered Royal Air Force always seemed to the puzzled Germans to besurprised.

　　It was radio echoes***回聲*** more that anything else that won the Battle of Britain.

　　Since the radio waves were used to tell the direction in which to send the RAF planes andthe distance to send them***their line of flight, in other words***, the device was called radiodirection and ranging, and from the initials the word radar was invented.

　　上海高考英語閱讀理解訓練

　　1. Sound waves reflected from a hill can be used to calculate the _____.

　　A. height of the hill B. speed of sound C. distance to the hill D. intensity of sound

　　2. Radar enabled the English to ______.

　　A. prevent German planes being on their may to London B. direct the outnumbered RAFplanes effectively C. confuse German bomber pilots D. number the Royal Air Force

　　3. The British used radio waves because they ______.

　　A. were more exact than sound waves

　　B. could not be detected

　　C. were more useful that sound waves

　　D. were easier to use than sound waves

　　4. The author of this article probably intended to explain ______.

　　A. exactly how radar works

　　B. why the British used radio waves in their device

　　C. How radar ***word and device*** Came to be

　　D. How radar helped the British win the Battle of Britain