完形填空

　　I left Beijing 　　1　　 June 2 and reached home 　　2　　 ．Let me 　　3　　 you something about the weather in South Australi A It's very different from Beijing 　　4　　 of year ．It's 　　5　　 now and it's very cold ．We all wear 　　6　　 clothes ．I often go skating ．Sometimes I go to my uncle farm ．Milk is very 　　7　　 here ．So we have milk for breakfast every day ．Life on the farm is very 　　8　　 ,but I enjoy it very much ．

　　You're working in the factory at the moment , 　　9　　 you? I hope you can mend a clock now ．Lim has a 　　10　　 clock! Remember?

　　I'm leaving Sydney for Beijing early next month ．I'm glad we will be together soon ．

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阅读理解

　　How could we tell time if there were no watches or clocks anywhere in the world?

　　The sun was probably the world’s first“clock”, except in the far north, where the Eskimos(爱斯基摩人)live．There, it’s dark most of the winter, and light most of the summer．But in most of the world, people have used the sun fooday, if you don’t have a clock that shows time, you still know that when the sun shines, it’s day, and when it’s dark, it’s night．The sun can not only tell you whether it’s day or night but also it’s morning, noon, or afternoon．When the sun is almost directly overhead, it’s noon．

　　People who live near the sea from the tides．In the daytime, for about six hours, the water rises higher and higher on the beach．And then it about six hours．The same thing happens again at night．There are two high tides and two low tides every 24 hours．

　　Seamen on a ship leall time by looking at the moon and the stars．The whole sky is their clock．In some places in the world the wind comes up at about the same time every day or changes direction or stops blowing．In these places the wind can be the clock．

　　A sand clock is an even better clock．If you had fine dry sand in a glass shaped like the one in the the sand will take another hour to go back again．

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　　This story happened four years ago．Tom was seven years old then．He was a good boy．He was one of the best pupils in his class．But he could not get up early．He often slept until nine or ten o’clock in the morning．So he was often late for school．

　　Tom’s mother didn’t want him to be late for school．So she bought him a clock．She said to Tom,“You must get up when you hear the clock ring．”

　　“Yes, Mum．”said Tom．After that Tom got up at six thirty when he heard the clock ring．

　　One day his mother forgot to make the clock ring at the usual time．And the next morning Tom didn’t get up at six thirty．It was time for breakfast．Mother went to see him．Tom was still in bed and his eyes were open．

　　“Why didn’t you get up?”Mother was angry．

　　“You told me to get up when I heard the clock ring．So I am waiting for the bell．”

　　“Mum, is the clock still sleeping?”Tom asked．

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