神马作文网十万火急的英语听力问题
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/17 06:17:54
十万火急的英语听力问题
Rainforests are the lungs of the planet – storing vast quantities of carbon dioxide and producing a significant amount of the world’s oxygen.Rainforests have their own perfect system for guaranteeing their own survival; the tall trees make a cover of branches and leaves which protect themselves,smaller plants,and the forest animals from heavy rain,dry heat and strong winds.
Amazingly,the trees grow in such a way that their leaves and branches,although close together,never actually touch those of another tree.Scientists think this is a deliberate method to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects.To survive in the forest,animals must climb from tree to tree.The ground floor of the forest is not all covered with leaves and bushes,but is where leaves turn into food for the trees and other forest life.
They are not called rainforests for nothing!Rainforests can produce 75% of their own rain.At least 80 inches of rain a year is normal – and in some areas there may be as much as 430 inches of rain annually.This is real rain.In just two hours,streams can rise ten to twenty feet.
13.How do rainforests manage to survive?
A.By storing large quantities of carbon dioxide.
B.By developing ways to protect themselves.
C.By producing a large amount of oxygen.
15.How much rain can rainforests produce in some areas in a year?
A.About 75％of their own rain.
B.As much as 430 inches.
C.At least 80 inches.
Rainforests are the lungs of the planet – storing vast quantities of carbon dioxide and producing a significant amount of the world’s oxygen.Rainforests have their own perfect system for guaranteeing their own survival; the tall trees make a cover of branches and leaves which protect themselves,smaller plants,and the forest animals from heavy rain,dry heat and strong winds.
Amazingly,the trees grow in such a way that their leaves and branches,although close together,never actually touch those of another tree.Scientists think this is a deliberate method to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects.To survive in the forest,animals must climb from tree to tree.The ground floor of the forest is not all covered with leaves and bushes,but is where leaves turn into food for the trees and other forest life.
They are not called rainforests for nothing!Rainforests can produce 75% of their own rain.At least 80 inches of rain a year is normal – and in some areas there may be as much as 430 inches of rain annually.This is real rain.In just two hours,streams can rise ten to twenty feet.
13.How do rainforests manage to survive?
A.By storing large quantities of carbon dioxide.
B.By developing ways to protect themselves.
C.By producing a large amount of oxygen.
15.How much rain can rainforests produce in some areas in a year?
A.About 75％of their own rain.
B.As much as 430 inches.
C.At least 80 inches.
13题选择B 从文章第一段中此句可以得出 “Rainforests have their own perfect system for guaranteeing their own survival; the tall trees make a cover of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain, dry heat and strong winds. ” 而A.B两个选项在文章第一段第一句 只是为了形容雨林的作用 15题选择B 从文章第3段 此句可以看出来 “and in some areas there may be as much as 430 inches of rain annually” annually就是每年的意思 AC两个选项 就位于这一段 仔细看一看 自己来发现什么不对吧 注意题目中关键的条件限制是"in some areas"哟