阅读理解

　　WHY IS THE SUN IMPORTANT?

　　The sun is a huge, hot, bright star．It is important because without it there would be no life on Earth．The sun gives us light and heat．

　　All living things need light and heat from the sun to live．Plants need light and heat to grow．They use the light from the sun to make food．We cannot make our own food, but plants can．All the food we eat comes from plants in a food chain(链)which starts with the sun．For example,

　　Animals need sunlight, too．Just like us, their food comes from a food chain which begins with the sun and the plants．

　　sun→ leaf→ caterpillar(毛虫)→bird

　　sun→ seaweed(海藻)→small fish→ whale(鲸)

　　Sunlight means we can see during the day．If there was no sun, it would be dark all the time．Even when the sky is cloudy, the sunlight is very strong and it shines through the clouds．

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阅读理解(20分)

　　Today，most horses are used for riding and racing．But long ago，when I was a boy，most horses were used for pulling．

　　They were big horses，for big work．They pulled plows and heavy loads．Such horses are called draft horses．

　　Draft horses often worked in teams of two，four or six horses．What a beautiful sight a fine matched team was！The horses were all of the same size and colour．Their coats were brushed and shining．The big animals moved together as though(仿佛)they were dancing．

　　My father drove and trained teams of draft horses．I learned from him how to handle them．He showed me that such horse is different．To work well with horses，I needed to know each one．

　　“But some things are true for all horses，”he said，“Before you walk behind a horse，always let him know you are there．Before you go into a horse's stall(畜舍的栏)，give him time to make room for you．When a horse is suddenly afraid，get to his head fast，hold him at the bit．That is the only place you can hold a frightened horse，John．”

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