2008年1月，罕见的冰雪灾害对我国南方的植物生长造成一定危害，有专家分析说这既

9，11，7，15，-1，31，( )

A．-33
B．-1
C．20
D．30

改错（每小题1分，共10分）

英语课上，老师要求同桌相互修改作文。假设以下小短文为你同桌所写，请你对其进行修改。短文中共有10处错误，毎句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧ ),并在此符号下面写出该加的词。

删除：把多余的词用斜线（\)划掉，

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1、每处错误及其修改均仅限一词。

2、只允许修改10处，多者（从第11处起）不计分。   

3、必须按答题要求做题。否则不给分。

I have been a friend with Li Ming since we go to primary school. He is one of my best friend. But last week something terribly happened to us. In Friday we had a maths exam. When I was busy check my answers, Li Ming whispered me for help. I felt very bad at that moment. We would cheat if I agreed. On other hand, we are good friends, so it was not easy for me to say "no" to my friend. Finally, I did not show her my answers. Though I explained my reasons after the test, but Li Ming didn't forgive me. How should I do?

读“雪线高度随纬度变化而变化表” 判断回归线附近地区雪线比赤道地区高的原因是（   ）

A．回归线附近地区降水量多、蒸发量大　   

B．赤道地区降水量多，蒸发量比回归线附近地区小

C．回归线附近地区蒸发量大于降水量       

D．赤道地区降水量少、蒸发量大

—Mr. Ding, thank you _____ our English classes fun.

—You're welcome. [ ]

A. for making  

B. making  

C. to make    

D. for make

导游服务管理公司本着为（）服务的宗旨。

A.导游

B.游客

C.旅行社

D.酒店