回潮系统的开机要点。

阅读理解。

     People know the dangers of fires. It's good for a family to learn how to prepare for a fire. Here are

some suggestions:

    ● put a smoke alarm in the house. Smoke from a fire causes the alarm to go off. The alarm makes

         a loud sound. The sound tells everyone to leave the house at once.

    ● Make escape plans. They should know all the ways out of the house. If there is a fire, everyone

         follows the plan to go out. Part of the plan is to check all the windows to make sure they can be

         opened easily.

    ● Put the extingushers (灭火器) in the house. Practise for a fire. They do fire pratice because they

         teach childen about fire safety. Every-one in the family should know the following fire rules.

    ● Don't open a hot door! The fire can grow more quickly if you open the door.

    ● Stay close to the door! Smoke can be more dangerous than fire. The best air is near the floor because

         smoke rises.

    ● What will you do if your hair or clothes start to burn? First, stop! Don't run! The fire burns faster

         because of more air. Drop! Fall to the floor! Rolling over and over will make the fire go out. Put a

         wet blanket (毯子) around you to keep air away from the fire that may still be on you.

    ● There are many possible causes for fires. A wise family is ready all the time.If there is a fire, don't

         forget to call 119 for help.

1. What does it mean when a smoke alarm rings at home? [ ]

A. You have to get up

B. Water is running to the floor

C. Something is burning

D. Someone breaks your window

2. The writer advises people to do the folowing to prepare for a fire except that ______. [ ]

A. they practise for a fire

B. they make escape plans

C. they buy fire extingguishers

D. they use electrical cookers

3. When a fire happens, ______ if you open the hot door. [ ]

A. the fire will grow more quickly

B. the electricity will be cut off

C. the door will soon be on fire

D. the house will fall down

4. What are the right steps you should take when your hair or clothes catch fire? [ ]

A. Stop, run, roll

B. Stop, drop, roll

C. Run, drop, roll

D. Roll, drop, stop

5. What is the best title for this passage? [ ]

A. The Dangers of Fire

B. The Causes of a Fire

C. Learn to use a Fire Extinguisher

D. Be ready for a fire

50kg体重的正常人的体液量和血量分别为（）

A.40L和4L

B.30L和4L

C.20L和4L

D.30L和2.5L

E.35L和3.5L

“马→蛔虫→原生动物”属于（）类型食物链。

A.捕食

B.腐食

C.混合

D.寄生

2008年6月29日上午，陕西省国家新闻办举行新闻发布会，白少康在会上通报说：由陕西省林业厅公布的镇坪县农民周正龙所拍“华南虎”照片是一张用老虎画拍摄的假虎照，同时宣布了对相关责任人的处理意见。此事件整个过程都与陕西省林业厅和镇坪县官员严重的行政不作为、乱作为是分不开的。这告诫行政部门要 [ ] 

①坚持民主执政 ②坚持依法行政 ③坚持依法执政 ④坚持对人民负责的原则

A．①②④

B．②③④

C．①②

D．②④

从事特种作业的安全人员必须进行培训，经过考试合格后方能上岗作业。该规定属于 ( )范畴。

A．岗位人员的安全生产责任制

B．群防群治

C．安全生产教育培训制度

D．安全生产检查