精选优质文档-倾情为你奉上人教版英语阅读理解20篇阅读理解1The salmon(大麻哈鱼) is a very strange fish. It is born in a river.But the young salmon takes 2 years to swim down the rivers towards the Pacific Ocean. For another 2 years it lives in the sea and becomes full grown. Then it returns to the river where it was born.A grown-up salmon weighs about 25 pounds and is nearly three feet long. The female salmon will not lay the eggs(产卵) in the Pacific Ocean. When it is almost time to lay them, both male and f
