Have you ever been ill?When you are ill, you must be unhappy because your body becomes hot, and there are pains all over your body．You don't want to work, you stay in bed, feeling very sad．
What makes us ill?They are germs(细菌)．Germs are everywhere．They are very small and you can't find them with your eyes, but you can see them with a microscope．They are very small and there could be hundreds of them on a very small thing．
Germs are always found in dirty water．When we look at dirty water under the microscope, we shall see them in it．So your father and mother will not let you drink dirty water．
Germs aren't found only in water．They are found in air and dust．If you cut your finger, if some of the dust from the floor goes into the cut(割开处)，some of the germs would go into your finger．Your finger would become big and red, and you will have much pain in it．Sometimes the germs would go into all of your body, and you would have pain everywhere．
(1)
Which of the following is true?
[ ]
A．
If things are very very small, they are germs．
B．
If things can't be seen, they must be germs．
C．
Germs are only in dirty water．
D．
Germs are everywhere around us．
(2)
What is a microscope used for?
[ ]
A．
Making very very small things look much bigger．
B．
Making very big things look much smaller．
C．
Helping you read some newspapers．
D．
Helping you if you can't see things clearly．
(3)
Why don't your parents let you drink dirty water?
[ ]
A．
You haven't looked at it carefully．
B．
Water can't be drunk in this way．
C．
There must be lots of germs in it．
D．
Water will make you ill．
(4)
Which of the following is not true?
[ ]
A．
Germs can be found both in water and in the air．
B．
Germs can go into your finger if it is cut．
C．
If your temperature is not OK, there must be germs in your body．
D．
If your finger isn't cut, there are't any germs on it．
How much sleep do we need? The answers are different. Some people need only three hours of sleep a night. Others need ten hours of sleep a night. Most Amexicans sleep for an average of seven to eight hours a night. After age fifty, the average sleep hours go down to 6.5 hours a night.
Most people will have a bad night when they can't fall asleep. About one in three Americans has a problem with sleep. Many of these people cannot fall asleep. The name of this problem is called insomnia(失眠症).
This is not a new problem. Many famous people in history had insomnia .Some of these people had their own ways to sleep well. Benjamin Franklin(本杰明·富兰克林), the famous inventor, had four beds.He moved from one to another to fall asleep. King Louis XIV (国王路易十四) of France had 413 beds and hoped to fall asleep in one of them. Mark Twain, the famous writer, had a different way: he hy on his side(侧卧) across the end of the bed!
(1)
Most Americans usually sleep for about _________ hours a night.
A. 3 B. 5～6 C. 10 D. 7～8
[ ]
(2)
As people grow older,they need __________ at night.
A. less sleeping time
B. more sleeping time
C. the same amount of sleeping time
D. a fixed time to sleep
[ ]
(3)
If there are 100 million people in the US hav-ing a problem with sleep,what's the popula-tion of it? About _______.
A. 200 million B. 300 million C. 600 million D. 900 million
[ ]
(4)
Franklin tried to go to sleep by __________.
A. moving from one to another of his 413 beds B. moving from one to another of his 4 beds
C. inventing a bed for himself D. lying on his side across the end of the bed
[ ]
(5)
It's not mentioned in the passage,but we know that Mark Twain was ___________.
