问题 选择题

某山共分布三类原生森林,该图显示三类森林每年每平方米净增的有机物质干重(NPP)与温度变化、降水量变化的关系。据此完成问题。

小题1:图中信息显示,三类森林中

A.②的NPP对温度的变化最不敏感

B.NPP与温度变化都成正相关

C.②的NPP对降水的变化最敏感

D.NPP对降水的变化都很敏感小题2:三类森林分布的海拔自低至高依次是

A.③①②

B.③②①

C.①②③

D.①③②小题3:若①为针阔叶混交林,则该山可能位于

A.河南省

B.吉林省

C.安徽省

D.福建省

答案

小题1:A

小题2:C

小题3:B

小题1:根据图中信息可知,①②③中NPP与温度的关系是②变化最小。都成负相关性。①②③中NPP与降水的变化都不大。选择A项。

小题2:①②③的NPP逐渐减少,说明海拔逐渐上升。选择C项。

小题3:本题考查植被的分布。与气候密切相关,东北地区的气候形成针阔混交林。选择B项。

阅读理解

阅读理解

     It is often considered that the schoolyard is where bullies(欺负)go to make other kids a miserable

school life, but a new study suggests that classrooms are another popular place.

     The study,presented recently at the American Public Health Association's yearly meeting in

Philadelphia,is based on the results of the research from more than 10,000 middleschool students who

answered questions online.

     Of those researched,43%said they'd been physically bullied within the last month.A bit more than half

said they'd been laughed at in an unfriendly way, and half reported being called hurtful names.About

onethird said groups had excluded (排斥)them to hurt their feelings.28% said their belongings had been

taken or broken;21%said someone threatened to hurt them.According to the results,twothirds of the

students said they'd been bullied in more than one way over the previous month.

     The study authors mentioned that 8% of the students who answered said they'd missed school at least

once during the school year because of fear of being bullied. 25% said they'd taken other actions,such

as missing recess(课间),not going to the bathroom or lunch,missing classes,or staying away from some

area of the school to escape from experiencing a bully.

     Bullies did too much to the school life.

1. Bullies can happen in the following places except________.

A. schoolyards  

B. classrooms

C. bathrooms  

D. teachers' offices

2. Which of the following is the best title?

A. Bad School Life  

B. Fear at School

C. Bullies at School 

D. School Problems

3. Some students might ________ to protect themselves from bullies.

A. leave the school

B. go for lunch

C. hurt others

D. break others' belongings

4. The writer feels ________ about bullies at school.

A. excited  

B. disappointed

C. worried  

D. puzzled

单项选择题 A1型题