What will you do if you hair or clothes start to burn? First, stop! Don’t run! The fire burns faster because of more air. Drop! Fall to the floor. Then roll! Turning over and over will make the fire go out. Put a blanket 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 advices people to do the following to prepare for a fire except that ______
A.they practice for a fire
B.they make escape plans
C.they buy fire extinguishers
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 a Fire.
B.The Cause of a Fire.
C.Learn to Use a Fire Extinguisher.
D.Be Ready for a Fire.
65.You may know about “ junk food” like French fries. But do you know about “junk sleep”?
Recently, a British survey found that electronic products in teenagers bedrooms are affecting their sleep.
The survey was done among 1,000 British kids from 12 to 16. It found that 30 percent of them got just 4 to 7 hours sleep every day. But doctors say they need 8 to 9 hours.
Almost a quarter of the kids said they fell asleep more than once a week while watching TV, listening to music or using other electronic products.
“This is very worrying.” Said Dr Chris Idzikowski, a British expert, “We call it ‘junk sleep’, It means you don’t get enough sleep and the quality of the sleep is bad, too. If you don’t get good rest, you don’t perform well in school the next day.”
The survey found that 40 percent of the kids felt tired each day, with girls between 13 and 16 feeling the worst. Nearly all the teenagers have a phone, Mp4 or TV in their bedroom. And many of them have all three.
(1).This passage is mainly about______.
A.junk food
B.junk sleep
C.electronic products
D.the importance of sleep
(2)._______of the children in the survey sleep only 4 to 7 hours a day.
A.200
B.300
C.500
D.1,000
(3).“Junk food” and “junk sleep”are similar to each other in the way that_______.
A.they are both low in quality
B.they are both produced in factories
C.people enjoy both in their spare time
D.they are both good to people’s health
(4).Which of the following is TRUE according to the passage?
A.Teenagers need 4 to 7 hours of sleep each day.
B.Few of the teenagers have a phone in their bedrooms.
C.Teenagers spend too much time on electronic products.
D.Girls between 15 and 16 spend the least time on electronic products.
(5).Which of the following is the best solution to the problem?
A.Parents watch TV together with their children
B.Forbid teenagers to use any electronic product.
C.Teenagers limit their use of the electronic products.
D.The use of mobile phone and Mp4 is not allowed at school.
70.Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.
Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.
Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.
When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.
Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.
(1).According to the passage,_______ could be used to identify the criminal.
A.fingerprints
B.scientists' hands
C.microbes
D.fingerprints and microbes on people's hands
(2).Paragraph 3 tells us that________.
A.our hands look similar
B.the microbes will make the keyboard dirty.
C.we should compare hands often
D.we have our own sets of microbes.
(3).When you work on computer, the microbes________.
A.just stay on our hands
B.also stay on the keyboard
C.will do harm to you
D.will disappear
(4).From Noah Fierer we know that________.
A.fingerprints are no longer useful in fighting crime
B.microbes can be found on everyone's hands.
C.unlike microbe fingerprints can be cleaned if people wipe them
D.the microbe is used as a useful tool
(5).What’s the best title of the passage?
A.Microbes May Tell Who You Are
B.Scientists Say Everyone Has Microbes
C.Noah Fiercer Does Research Into Microbes
D.Fingerprints Help Catch Criminals
