China is home to more than 1,000 kinds of birds because the country is large and has almost every weather type to suit them.But not every one knows how to take good care of them.Some cut down trees and destroy the birds’ homes.This has made the num ber of birds go down quickly． A study shows that one out of eight birds,more than 1,200 kinds,in the world could die out．This includes 95 percent of albatrosses(信天翁)and 60 percent of cranes(仙鹤)．Some birds you see every day,like pigeons and parrots,are also in danger!To help them,people have set up 7,500 reserves(保护区)which are suitable and safe for the birds．In China,there are big reserves like the ones near Dongting and Poyang lakes． Is there something that you can do for birds?Take care of their homes．Feed them with something delicious．Well,think it over and get going now!根据短文内容,判断正（A）误（B）.（ ）46．There are more than 1000 kinds of birds in China only because China is so large． （ ）47．There are too many pigeons and parrots,we can see them every day． （ ）48．All of us know how to take care of the birds． （ ）49．The reserves are good places for the birds to live in.（ ）50．We should take good care of the birds’ home．