问题 问答题 简答题

在景观生态学中,等级结构理论的根本作用是什么?

答案

参考答案:

明确提出了在等级结构系统中,不同等级层次上的系统都具有相应的结构、功能、过程,需要重点研究解决的问题也不相同。特定的问题既需要在一定的时间和空间尺度上,也就是在一定的生态系统等级水平上加以研究,还需要在其相邻的上下不同等级水平和尺度上考察其效应和控制机制。

阅读理解

Lots of kids hate school, a new study found. Usually this kind of feeling doesn't last long. But what happens if you feel this way too much? School is a fact of life and getting a good education can help you build the kind of future life you want. So let's talk about school and what to do when you don't like it.

If you don't like school, the first step is to find out why. You might not like school because you don't have enough friends, or maybe you don't get along with your teacher. Sometime it's a big problem with your classes and school-work. You may be getting farther and farther behind,and it may seem like you'II never catch up.

When you know why you don't like school, you can start taking steps to make things better. It's a good idea to talk to someone about your problems with school. Your mum, dad, teacher or school counselor(顾问) will be able to help you. Another good idea is to write down your feelings about school in a notebook. It's a great way to let out emotions(情绪). Remember, you don't have to share what you've written with others.

小题1:Lots of kids        , according to the writer.

A.like school very much

B.are good at reading and writing

C.don't like doing homework

D.have the thought of hating school小题2:What does the underlined word “it”refer to(指的是)in the frrst paragraph?

A.A good education.

B.School.

C.Future life.

D.Friendship.小题3:If you don't like school, the first step is to.

A.find out why

B.go to see a doctor

C.ask your parents for help

D.leave school for a short time小题4:How many reasons why you don't like school are given by the writer?

A.Two.

B.Three.

C.Four.

D.Five.小题5:When you start taking steps to make things better, one of the good ideas is to       .

A.keep silent about your problems

B.share what you' ve written with others

C.write down your feelings about school

D.get along well with your classmates

填空题