初四阅读训练.docVIP

阅读理解 (一) Have you ever heard your own voice? “Of course,” you say. 　　Has anyone else ever heard your voice? Again you say, “Of course.” 　　But that’s not quite true. Nobody else has ever heard your voice—the way you hear it. When you talk, you set up sound waves (声波). The air outside your head carries the sound waves to your outer ears. But, of course, the sound of your voice begins inside your head. The bones (骨头) of your head pick up the sound waves, too. They carry the sound waves straight to your inner(里面的) ears. You get the sound from the outside and the inside too. Other people get just the sound waves from the outside. That’s why they don’t hear your voice the way you do. 1. Sound travels in the form (形式) of __________. 　　A. bones B. air C. waves D. voice 2. The sound of your voice begins ________. 　　A. inside your head B. outside your head C. in your inner ears D. in your outer ears 3. When you talk, other people hear your voice _______. 　　A. through the bones of your head B. from the outside 　　C. from the inside D. all of the above 4. The phrase “pick up” here means ________. 　　A. to raise B. to get C. to choose D. to pull 5. The passage is mainly about _________. 　　A. waves in the air 　B. the way you hear your own voice 　　C. voice gets around far and wide 　　D. the different ways you and others hear your voice ( 二 ) Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves. 　　Some birds like eating locusts (蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night. 　　If you study the anima