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1、阅读理解阅读理解(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 thats not quite true. Nobody else has ever heard your voicethe way you hear it. When you talk, you set up sound waves (声波). The air outside your head carries the
2、 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 so
3、und waves from the outside. Thats why they dont 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 pe
4、ople hear your voice _.A. through the bones of your head B. from the outsideC. 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 voiceC. voice gets a
5、round far and wideD. 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 beca
6、use 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
7、they have to hide themselves for lives and appear only at night.If you study the animal life, youll find the main use of coloring is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have the colors mu
8、ch like the trees.Have you ever noticed an even stranger act? A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger. While the liquid spreads over (散开), its enemies (敌 人)cannot find it. And it immediately swims away. So it has lived up to now though it is not st
9、rong at all. 1.From the passage we learn that locusts_. A. are small animals B. are easily found by birds C. are dangerous to their enemies D. change their colors to protect themselves 2.How can pests with different colors from plants keep out of danger? A. They run away quickly. B. They have the co
10、lors much like their enemies. C. They hide themselves by day and appear at night. D. They have to move quietly. 3.Bears and lions can keep safe because _.A. they have the colors much like the trees B. they move quietly C. they like brown and gray colors D. they live in forests 4.Why can the kind of
11、fish live up to now? A. Because it is very and strong. B. Because the liquid it sends out can help it escape from its enemies. C. Because the liquid it sends out can kill its enemies. D. Because it swims faster than any other fish. 5.Which is the best title for this passage?A. The Change of Colors f
12、or Animals and Pests B. Colors of Different Animals and PestsC. The Main Use of Colors for Animals and Pests D. Some Animals and Pests(三) Its important to learn about protecting our environment. Here is a 5R rule for us:1. ReduceIf you want to reduce waste, you should use things wisely (明智地). A larg
13、e number of trees are being cut down to make paper. If everyone uses a little paper carelessly and throw it out, soon we would not have any trees left. Other things are also being wasted, and people dont know what to do with the waste in big cities. So it is necessary to reduce the waste. 2.ReuseYou
14、 should always think of reusing the usable things before throwing them out. Give your clothes you do not use or the ones which too small to the poor. In a family, you may pass on such clothes to younger brothers or sisters.3.RecycleBottles, cans (罐子) and paper can easily be recycled. By doing so we
15、save lots of time and money. For example, coke cans are sent to a factory, where they are smashed flat (压平) and melted (融化) and the metal things are made for new coke cans.4.RecoverWhen you buy a box of apples, there may be few rotten (腐烂的) apples, you have two choices: one is to throw the whole app
16、les away, or you could cut off the rotten parts and use the good parts. In this way, you are recovering the eatable parts of food.5.RepairIf one of the begs of your table is broken, you can repair it. If you want to change for better ones, it is better for you to sell the old things or give them to other people who can use them after doing
