完形填空

　　When people think of tigers, they think：strong and dangerous (危险的)．But now, the big animal is calling for our help．

　　There were once eight kinds of 　　1　　 in the world, but three died out during the 20th century．In the last 70 years, the 　　2　　 of Siberian tigers (东北虎)has gone from as many as 300 to 　　3　　 22 somewhere．The Siberian tiger has been 　　4　　 dying (死亡)out completely．If the government doesn't make any efforts(努力), it's quite 　　5　　 that there will be no more Siberian tigers in China in ten to twenty years．

　　In order to double the number of wild tigers in the 　　6　　 ten years, the World Wildlife Fund (世界自然基金会)has started a program recently．It 　　7　　 save wild tigers and put an end to tiger hunting and killing．China, together with twelve other 　　8　　 , has joined in．

　　Wild animals, such as red deer and wild pigs, are the main 　　9　　 of tigers．The hunting of these animals is the greatest threat (危险)to tigers．So the most important thing is 　　10　　the animals that tigers eat．To protect the wild tigers, we need to call on more people to stop eating and hunting wild ani-mals．

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完形填空

　　When you hear the word “scitentist”, what do you think of? Many people think scientist are people in clean white coats who work in labs．And some scientists do work in labs．But there are 　　1　　 scientist who work in woods and jungles．These scientists are called “animal behavior(行为)scientists”, and they study animals as they live in nature．

　　Why don’t these scientists catch animals and study them in zoos? The 　　2　　 is in the word “behavior”．Animals behavior scientists want to learn 　　3　　 animal behave in their wild homes．When animals live in cages(笼子)or in zoos, they do not act the same as they do when they are 　　4　　．They may fight 　　5　　 each other, or they may not eat, or they may not raise(抚养)their babies as they usually would．To see real animal behavior, scitentists must go where the animals 　　6　　．

　　So animal behavior scientists go into the jungles, the woods or the desert．There, their most important 　　7　　 are their eyes and ears．They watch and listen to the animals very 　　8　　．They write down everything that happened in notebook．　　9　　 they live near the animals, the scientists are careful not to frighten them．If the scientists are luncky, the animals will 　　１０　　 no attention to them．Then the scientists can see how the animals really live．

　　The behavior scientists hope what they’ve learned about animal behavoir can provide clues(提供线索)to help people learn to live together more happily．

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完形填空。

　　There are many different kinds of　　1　　in the world．We can see some of them in the zoo．Camels come　　2　　Africa．They are very strong．They live in the　　3　　and　　4　　grass．The elephant comes from India．It is the biggest animal on land．They are very friendly．The kangaroo comes from　　5　　．It eats grass and　　6　　．Koalas　　7　　also from Australia．They are friendly　　8　　cute．Children like　　9　　．Pandas are from China．They are cute,too．　　10　　are other animals in the zoo．

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