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1、 Unit 4 Wildlife protection Period 1 Warming Up & Reading课后阅读训练. 阅读理解AWhat do the following animals have in common? Pandas, rhinoceros, Mexican burrowing snakes, pink pigeons and small tooth sawfish. They are all endangered animals! Animals become endangered for a variety of reasons. Sadly, humans a
2、re behind every one of them!For centuries, humans have hunted elephants for their tusks, and killed tigers for their beautiful furs, caught fish for food. While we still have elephants, tigers, and fish in the wild, we cannot say the same about many others that have simply died out!Year 1505 was a d
3、readful turning point in the natural history of the island of MauritiusEuropean sailors discovered this beautiful island in the Indian Ocean and brought dogs, pigs, monkeys with them. The arrival of humans and those introduced animal species were bad news for dodo birds. About 50 pounds and flightle
4、ss, dodo birds did not have any natural enemies until then. They picked fruits fallen from trees and built their nests on the ground. Shortly after humans set foot on Mauritius, however, dodo birds realized that they were in big troublemen killed them for their meat, and those introduced animal spec
5、ies destroyed their nests and ate their eggs. The effects of excessive(过度的)hunting and foreign species drove dodo birds to first become much fewer and then die out. The last dodo bird was killed in 1681. Humans and animals have always competed for land and other natural resources. We clear an area o
6、f a forest for farming. We cut down trees and use wood to build beautiful houses. We build reservoirs(水库)to make sure that we have enough water to use. At the same time that we are trying to make our life comfortable, we destroy the habitats of wild animals. More than once we have seen on television
7、 that rescue workers are trying their best to save seabirds in spilled(泄漏的)oil. More than once we have heard about how emissions of carbon dioxide(二氧化碳的排放)and other gases have raised the Earth temperature and caused global warming. Pollution has a serious and long-lasting effect. If we choose to do
8、nothing and continue to pollute our planet Earth, our next generations will have to face an Earth without birds singing and beasts roaring. 【语篇概述】本文主要介绍了导致许多动物灭绝的原因, 我们人类应该保护野生动物, 保护地球。1. How many reasons are given by the author to explain why the animals become endangered?A. 3. B. 4. C. 5. D. 6. 【解
9、析】选B。细节理解题。本文的第三到第六段讲述了动物灭绝的四个原因, 即过度捕杀、外来物种的进入、栖息地遭破坏和环境污染。2. What does the underlined word“dreadful”(in Paragraph 4)mean?A. Surprising. B. Exciting. C. Unpleasant. D. Quick. 【解析】选C。词义猜测题。从本段的内容分析可知正是人类的到来和外来物种的进入使得dodo birds面临灭顶之灾, 所以应是一个不好的、令人不愉快的转折点, 故选C。3. Paragraph 5 mainly talks about_. A. ho
10、w excessive hunting led to endangerment of animalsB. when foreign species entered the island of MauritiusC. the human activities caused the loss of habitats of animalsD. pollution played a main role in the worsening of environment【解析】选C。推理判断题。从本段可知正是人类的活动使得动物们的栖息地遭到了破坏, 故选C。BAfter their small boat t
11、urned over, the three men swam to a small island in the Pacific Ocean. There were no people or animals on the island. What was worse, they couldnt find enough fresh water to drink. If nobody came to save them, they would have no choice but to die. In some movies, people usually try to create the let
12、ters SOS to send for help. Sometimes, they set a fire with much smoke to attract attention. Just like this, the three men used the leaves and branches of trees to spell a large word HELP on the beach, hoping someone could see it. And a week later, a U. S. Navy airplane saw the men. The flight crew(人
13、员)searching for them depended on a camera that could read signs of peoples body temperature. Soon, the camera found that the three men might be on the island. The island is close to Guam. The plane flew around the Island and discovered the word on the beach. When the plane was close enough, the men
14、ran out from some trees and started waving their orange life vests(救生衣). The plane flew close to the ground more than once, and tipped its wings to show the men it knew they were there. The crew also threw a smoke signal into the water. The Navy airplane reported the mens location to the U. S. Coast
15、 Guard and a boat immediately set out to pick them up. Lieutenant Commander John Harkins said he and his crew celebrated when they saw the men, because they did not think they would save them. The Associated Press news service reported the men had arrived home and nobody got hurt. 【语篇概述】本文讲述了在太平洋的一个
16、小岛上, 三个人用树叶和树枝拼出了HELP字样, 并最终获救的故事。4. Why did the three men swim to the island?A. They met with an accident. B. They wanted to live a quiet life. C. They wanted to find some animals. D. They planned to find some fresh water. 【解析】选A。细节理解题。根据第一段首句“After their small boat turned over, the three men swam to a small island in the Pacific Ocean. ”可知, 这三个人是因为船只被打翻, 遇到了意外, 才游到小岛上的, 故选A。5. What d
