A wise man was walking from one town to another with a few of his followers, and they happened to pass a lake. So they stopped there to   1  for a while, and the wise man said to one of his followers, “I am very  2 . Could you please  3  me some water from the lake?”
The follower walked to the lake  4  the wise man requested. Some people were washing clothes in the water, and right at that moment, several carts (手推车) started crossing the lake.  5  , the water became very muddy.
Then he went back and told the wise man that the water was very muddy and not   6  to drink.
After they had rested for about half an hour, the wise man again asked the   7  follower to go back to the lake and get him some water to drink. As requested, the follower went to the lake. This time he found that all the mud had   8   to the bottom. The water was very   9 and looked fit to drink. So he    10 his water bottle and took it to the wise man.
The wise man took the water bottle and drank, then looked up at the follower. “See what you did   11   the water clean?” he said. “You let it be for a while and the mud settled down on its own,  12  you could get some clear drinking water. Your mind can also be like that lake when it is   13   by something. If you just let it be and give it a little time, it will most likely settle down on its own   14  being put in any effort at all to   15   it.”

Many companies use guards and expensive alarm systems to protect their property (财产). Soon a new kind of protection will be used—robots. Engineers have been working on the first mobile robots for businesses. The robots will guard factories, warehouses (仓库) and museums at night.
The mobile robots will move around slowly on wheels. They will be able to detect (察觉,发现) people through walls and pick up sounds, such as breaking glass. They can be fixed with loud sirens to frighten thieves, or radios to signal police or guards.
To protect a building, a robot will have to move around without knocking into the walls. Information about the building will have to be stored in the robot’s small, built-in computer. A floor map could be programmed into the computer’s memory, for example.
A mobile robot will not be able to do everything. Unlike human guards, it will not be able to climb stairs, open doors, or move along rough ground. It won’t be able to tell the difference between friends and enemies. Because of that, people will have to be prevented from entering the area it moves.
One kind of mobile robot will be able to “sense” whether a chair or a box has been moved and go around it. This robot will also judge size well enough so that it won’t send an alarm if a cat crosses the room. And if someone tries to steal this robot, it will sound a loud, painful siren. The three-foot-tall robot is hard to be stolen anyway. It weighs about 200 pounds.
U.S. companies pay almost $10 billion a year to protect their property with alarm systems and human guards. Mobile robots may be cheaper.  (296)
【小题1】 Why is the new kind of robots called mobile robots? Because they can _____.

John is twelve years old. He had a bad cold and coughed day and night. He went to see a doctor. The doctor gave him some cough medicine. Look at the instruction on the bottle of the medicine and then choose the right answers:

　　 Cough Medicine

　　Shake(摇动)it well before use.

Take it three times each day before meals.

　　Dose (药量):

　　Age：over 14 2 teaspoonfuls(勺)

　　8—13 1 teaspoonful

　　4—7 1／2 teaspoonful

Not right for children below the age of three. Put it in a cold place.

Use it before December 1st 2012.

1.John should take ____ a day.

A．2 teaspoonfuls

B．3 teaspoonfuls

C．4 teaspoonfuls

D．1 teaspoonful

2.The medicine should be kept in _______.

A．a fridge（冰箱）                       B．hot water

C．any place                             D．the sun

3. John should ____ before he takes it.

A．shake the medicine well

B．eat nothing

C．do some exercise

D．drink a cup of tea

4. When people are ____ years old, they cannot take this medicine.

A．eighty            B．thirty             C．two              D．twelve

5.John will ____ the medicine when it is left after Dec.1st, 2012.

A．throw（扔） away

B．stop to take

C．take once

D．take six times more

Weather has a strong effect(影响) on people. It influences health, intelligence (智力) and feelings. In August, it is very hot and wet in the southern part of the United States. People there easily have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is hot at some times and very cold at other times. People in those states will have heart trouble after the weather changes in February or March.
The weather can also influence intelligence. For example, in a 1983 study by scientists, the IQ scores of some college students were very high during storm, but after the storm, their scores were low. Storms can increase intelligence. Very hot weather, on the other hand, can decrease(减少) it. Students in many schools of the United States often do badly in exams in the hot months of the year(July and August).
Weather also has a strong effect on people’s feeling. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel depressed during cold weather. In hot summer weather, on the other hand, fat people may feel unhappy. At about 65F, people become stronger.
Low air pressure(气压) makes people feel free, but it also increases forgetful- ness. People leave more bags and umbrellas on buses and in stores on low pressure days. There is a“perfect weather”for work and health. People feel best at a tempera- ture of about 64F with 65 percent humidity(湿度).
Are you feeling sick, sad, tired, forgetful, or very intelligent today? The weather may be the reason.
【小题1】Intelligence may be lower______.