根据短文内容回答问题。

　　Which animals do we need most? Dogs? Cats? Horses? No! The answer to the question is cows!

　　Why cows? Cows give us milk．And milk is one of our most important foods．Suppose(假设)that all the milk cows make in one year was put into bottles, and suppose these bottles were set side by side, the line of bottles would go all around the world 400 times!

　　That is a lot of milk．Less than half of it is used for drinking and cooking．Most of it is used to make butter, cheese, ice-cream and many other things．

　　It takes many cows to give us that much milk．But not as much as it used to．A cow used to give only about 1, 500 quarts(夸脱)of milk a year．Now a fine cow may give more than 3, 000 quarts in a year!

　　Why do cows give more milk today? Farmers have better cows．The cows get better care and better food．For each two and a half pounds of grass that she eats, a fine cow makes about a pound of milk．But she may not give all the milk she makes．If she is unhappy, she may give only a small part of it．A cow is a friendly animal．If man is kind and speaks softly to her, she gives more milk．She also likes music．

　　Cows give us more than just food．Their skin can be made into shoes．No animal does more for us than cows．

1．Why do we need cows most?

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2．How much of the milk is used for drinking and cooking?

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3．What is the most of the milk used to do?

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4．Why does a fine cow now give twice as much milk as a cow used to?

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5．What will happen if we make cows unhappy?

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根据短文内容回答问题。

　　When you walk into the Rock Garden in the city of Chandigarh in India, you will be shocked by the beautiful art-works at once．The garden is built of garbage(垃圾)and thrown-away things．At the gate of the garden, thousands of plugs(插头)make up the white wall．There is a road going into the garden．The road is made of cinder(煤渣)．A beautiful glass house stands beside the road．It is made of beer bottles．More than 5,000 sculptures(雕像)are standing around the garden．

　　They are all made from things found in the garbage．The garden was started by a man named Nek Chand．He began collecting garbage from streets and villages and started making his garden in 1958．He was neither a born artist nor an engineer．“I used to do my job as a road inspector during the day,”Nek Chand said．He worked on his art-works at night, and no one found out about him for 18 years．Finally, the government discovered his work in 1975, and helped Nek Chand make his dream come true．The garden was opened to the public in 1976．Now, it is one of the most well-known tourist places in this city, and around the world．

1．What is the garden built of?

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2．What is the road made of?

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3．How many sculptures are there around the garden?

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4．Is Nek Chand a born artist?

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5．Who helped him come true his dream?

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　　Robots seem very new to most people．But they have a long history．The first one was made by a Greek inventor．

　　　　1　　．The robots in these films are stronger, faster and cleverer than people．In real life, most robots are used in factories．They are used to do many dangerous, difficult or boring jobs．　　2　　．For example, some people can't see, many of these people use a dog to help themselves move around．This dog is called a guide dog．　　3　　．In the future, robot dogs might take the place of(代替)these guide dogs 　　4　　．At one hospital, a robot takes meals from the kitchen to the sick people's rooms．It never loses its way because it has a map of the hospital in its computer system．

　　In the future, robots will work in space．But robots will never take the place of human help．They can, however, help us in a lot of different ways．