[英语总结模版英语课文总结模版英语文章总结范文.doc

O riginal: Why do some animals die out? In the past two hundred years people have caused many kinds of animals to die out--to e extinct. People keep building houses and factories in fields and woods. As they spread over the land, they destroy animals' homes. If the animals can't find a place to live, they die out. Sixteen kinds of Hawaiian birds have e extinct for this reason. Other animals, such as the Florida Key deer, may soon die out because they are losing their homes. Hunters have caused some animals to e extinct, too. In the last century, hunters killed all the passenger pigeons in North America and most of the buffalo . Today they are fast killing off hawks and wolves. Pollution is killing many animals today, too. As rivers e polluted, fish are poisoned. Many die. Birds that eat the poisoned fish can't lay strong, healthy eggs. New birds aren ’t born. So far, no animals have e extinct because of pollution. But some, such as the bald eagle and the brown pelican, have e rare and may die out. Scientists think that some animals e extinct because of changes in climate. The places where they live e hotter or cooler, drier or wetter. The food that they eat cannot grow there any more. If the animals can't learn to eat something else, they die. Dinosaurs may have died out for this reason. S ummary: Model 1: In this passage/article, the author mainly ( 主要地) talks about/tells us/