出铁开铁眼时，严禁乱捣乱烧，应保持炉眼内小外大的形状。

下列______是天然抗氧化物质的主要来源。

A．粮谷类
B．深海鱼类
C．蔬菜和水果
D．山珍海味
E．鲍参鱼翅

阅读短文回答问题。

      My name's Piko. Today is the School Sports Day in my school. Everyone in my class is very happy.

I'm really excited. I love running. I can run fast. I join in the running race. I want to win (赢). I come the

second. Billy wins the race.

     My friend, John, does not like running. He likes skipping (跳绳). He joins in the skipping race. Jane

and Sue are good friends. They join in the three-legged race (双人三腿赛跑) together. In the afternoon,

all the class work together in the tug-of-war (拔河). Everyone has a great time. What a fun day!

1. What does Piko like?

__________________________________________________

2. Does Billy win the race?

__________________________________________________

3. Can John skip?

__________________________________________________

4. Who join(s) in the three-legged race?

__________________________________________________

5. What race do all the class join in the afternoon?

__________________________________________________

2013年春节前夕，来沪务工的秦某不慎将17600元现金散落在马路上，大部分被路人捡走。该事件被报道后引发了社会有关“道德缺失”的理性讨论。在舆论的影响下，有人归还捡到的钱，有人给秦某捐款。人们的爱心一点点激发，一步步传递，用爱与善的微光点燃社会的希望。

（1）人们的爱心一点点激发、一步步传递，体现了发展的哪种状态？其有何特点？（2分）

（2）运用“发展状态”有关知识简要回答如何才能形成良好的社会风气？（6分）

关于急性细菌性痢疾形成的假膜，下列错误的是（）

A.假膜形成是急性细菌性痢疾的特征性病变

B.首先出现在黏膜皱襞的顶部，随病变扩展融合成片

C.假膜脱落后一般易形成深达肌层或浆膜层的溃疡

D.肉眼观呈灰白色或暗红色

E.大便中偶见片状假膜

技术进步促进能源利用率提高，实现能源需求减量化。